菜鸟学习Docker实例

  • 说明
  • 一、Tomcat
    • (1)安装
    • (2)使用
  • 二、Mysql
    • (1)安装
    • (2)使用
    • (3)可能遇到的错误
  • 三、Redis
    • (1)安装
    • (2)使用
  • 四、JDK
    • (1)安装
    • (2)使用
  • 五、Nginx
    • (1)安装
    • (2)使用
  • 六、RabbitMQ
    • (1)安装
    • (2)使用
  • 七、Consul
    • (1)安装
    • (2)使用
  • 八、Nacos
    • (1)安装
    • (2)使用
  • 九、Sentinel
    • (1)安装
    • (2)使用

说明

更新时间:2021/2/13 1:55,更新了mysql数据挂载部分
更新时间:2020/10/06 23:55,更新了Sentinel部分数据
更新时间:2020/10/06 11:02,更新了Nacos部分数据
更新时间:2020/9/9 19:59,更新了RabbitMQ部分数据
更新时间:2020/7/31 16:01,更新了Tomcat部分数据
更新时间:2020/7/30 17:58,更新了JDK实例和Nginx实例的使用
更新时间:2020/6/24 22:49,更新了Redis实例的使用

本文会持续更新,逐步增加新的实例,下面的内容经过实测,本人一步一步记录的,确定有效,需耐心看完!!!

注意:本文仅为记录学习轨迹,如有侵权,联系删除

一、Tomcat

注意:如果搜索不到或拉取不到,可能是没有配置国内镜像源,建议先配置一下国内镜像源

(1)安装

搜索tomcat:docker search tomcat


拉取tomcat:docker pull tomcat

(2)使用

启动tomcat

命令:docker run --name mytomcat -d -p 8000:8080 tomcat命令说明:--name mytomcat:给启动得tomcat起一个名字-d:设置为后台运行-p 8000:8080:将虚拟机主机的8000端口映射到容器的8080端口,这样就可以在外面通过虚拟机ip:8000端口访问到容器的8080端口的tomcattomcat:要启动的镜像注意:如果不配置映射是访问不了tomcat的,mysql的配置也需要做映射

在自己电脑上通过虚拟机ip:8000端口访问tomcat:

发现404错误,说明可以访问到tomcat,只是找不到tomcat首页,还需要再配置一下
命令:docker exec -it 385cb4e0154f /bin/bash进入运行中的tomcat容器,385cb4e0154f是运行的tomcat容器的id
命令:ls -l查看所有文件

错误原因分析:我们知道正常访问tomcat是访问webapps下面的资源,包括tomcat首页,而这里tomcat首页却放在了webapps.dist下面,webapps文件里面是空的,不信可以自己cd进入webapps查看是不是空的,所以解决方案很简单,将webapps删掉或者重命名,然后将webapps.dist重命名为webapps即可


解决方案

重新访问成功

至此,tomcat安装并启动成功,如有错误请指出!

tomcat运行静态页面

创建镜像实例:docker run --name tomcat02 -d -p 8081:8080 tomcat
进入容器实例:docker exec -ti tomc
进入webapps目录,创建test02文件夹用户存放静态页面,test02里面随便创建一个静态页面b.html

执行:vim b.html在里面编写静态资源代码(注意如果找不到vim命令的话需要先在容器里面安装vim编辑器)

<h1>this is tomcat: server02</h1>

完成后用访问

二、Mysql

(1)安装

命令:docker pull mysql说明:跟安装tomcat差不多,直接拉取最新版mysql,默认最新版

(2)使用

关于docker使用mysql,网上有一种说法,就是在安装docker mysql镜像之后,新建的数据库只保存在内存中,一旦退出,数据就消失了,没法做到持久化,事实上确实是这样,这是因为之前的版本没做数据的挂载,想要数据持久化就必须做mysql数据的挂载,但现在的最新版本的mysql镜像(8.0以上),mysql会自动挂载,所以如果是最新版的mysql镜像(8.0以上)是不需要手动指定MySQL挂载卷的。

这里因为对自动挂载券不满意,所以下面自己手动做数据的挂载,只为了方便自己查找数据

创建自己要存放的mysql配置文件路径,强烈建议先把文件创建好再进行数据的挂载

conf里面有创建一个my.cnf文件,my.cnf文件里面内容可以这样获取,先创建一个不挂载任何文件的数据库容器,然后把这个容器里面的my.cnf文件拷贝出来即可

简单创建一个mysql容器:
docker run --name mysql02 -p 3306:3306 -e MYSQL_ROOT_PASSWORD=123456 --restart=always -d mysql

复制容器中的mysql配置文件到宿主机指定目录:
从容器中将文件拷贝出来的命令:dokcer cp 容器名称:容器目录 需要拷贝的文件或目录: docker cp mysql02:/etc/mysql /home/abc/mysql/mysql02

这里已经拷贝出来如下,顺便加了一下字符串编码utf-8的配置

# Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA#
# The MySQL  Server configuration file.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html[mysqld]
pid-file        = /var/run/mysqld/mysqld.pid
socket          = /var/run/mysqld/mysqld.sock
datadir         = /var/lib/mysql
secure-file-priv= NULL# Custom config should go here
!includedir /etc/mysql/conf.d/#character-set-server=utf8#[client]
#default-character-set=utf8
#[mysql]
#default-character-set=utf8

现在可以开始创建mysql容器了
执行以下命令:

docker run --name mysql01 -p 3306:3306 -v $PWD/mysql/conf/my.cnf:/etc/mysql/my.cnf -v $PWD/mysql/data:/var/lib/mysql -v $PWD/mysql/log:/logs -e MYSQL_ROOT_PASSWORD=123456 --restart=always -d mysql命令说明:--name mysql01:给创建的容器起个名字-p 3306:3306:将容器的 3306 端口映射到主机的 3306 端口。-v $PWD/mysql/conf/my.cnf:/etc/mysql/my.cnf:将主机当前目录(mysql/conf/my.cnf)挂载到容器的 /etc/mysql/my.cnf。-v $PWD/mysql/data:/var/lib/mysql:将主机当前目录下的data目录挂载到容器的 /var/lib/mysql-v $PWD/mysql/log:/logs:日志的挂载-e MYSQL_ROOT_PASSWORD=123456:初始化 root 用户的密码,注意,之后进入mysql后需要改掉这个密码,不然后面会访问不了-d:后台运行mysql:镜像名


挂载成功后,可以查看自己刚才创建的几个文件,发现里面都有了相应的数据,和一个锁的图标

如果出错可以执行该命令:docker run --name mysql03 -p 3306:3306 -v $PWD/mysql/data:/var/lib/mysql -v $PWD/mysql/log:/logs -e MYSQL\_ROOT\_PASSWORD=123456 -d mysql

即不挂载配置文件即可

用navicat连接数据库,192.168.29.133是虚拟机的ip

发现失败了,原因是mysql8后,安装时选择了强加密规则caching_sha2_password,与之前的mysql5.7的mysql_native_password规则不同,navicate驱动目前不支持新加密规则

解决方案,进入mysql容器内部修改密码,命令docker exec -ti <容器id> bash
修改密码命令:ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';重新连接后成功了

创建数据名为test的数据库和use表,插入一条数据

在docker中查看数据库发现有相应数据

查看之前一开始创建的mysql/data文件夹,发现刚才创建的数据库已经挂载到该目录下

至此,mysql数据挂载成功,可以测试停掉容器后重启,看数据还在不在

配置mysql表名忽略大小写敏感
命令:

sudo docker run --name mysql02 -p 10456:3306 -e MYSQL_ROOT_PASSWORD=123456 -d -v $PWD/mysql/mysql02/:/var/lib/mysql mysql --lower_case_table_names=1注意:--lower_case_table_names=1    :忽略大小写,docker mysql默认区分大小写的,而且是只有在构建镜像的时候有用,其他的改配置文件方法均无效,还会导致无法启动镜像//进入mysql容器
docker exec -it mysql.db /bin/bash//查看是否忽略大小写是否生效
show global variables like '%lower_case%';
+------------------------+-------+
| Variable_name          | Value |
+------------------------+-------+
| lower_case_file_system | OFF   |
| lower_case_table_names | 1     |
+------------------------+-------+
2 rows in set (0.00 sec)
这样就是生效的

(3)可能遇到的错误

Host is not allowed to connect to this MySQL server
查了一下,好像这种情况是Centos好像不允许mysql远程登录root用户,解决方如下

进入mysql容器:docker exec -ti 容器名 /bin/bash登录MySQL: mysql -u root -p
(回车输入密码登录)执行:use mysql
执行:update user set host ='%' where user = 'root';
执行:flush privileges;

Access denied for user ‘root’@‘localhost’ (using password: YES)
上面在进入mysql容器进行mysql登录的时候,可能会出现这种错误,而且明明密码全都正确,就是登录不了,这种方式需要配置my.cnf文件,让它支持免密登录,再该文件里面的mysqld下面加入:skip-grant-tables

然后记得保存配置文件,重启该mysql容器即可,就可以免密登录了,到需要输入密码的时候直接敲回车即可登录,然后就可以进行密码重置或修改了

刷新(不然后面直击修改密码会报错):flush privileges;修改密码:ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';

改完密码后,将配置文件my.cnf的skip-grant-tables去掉,保存重启mysql容器发现就可以用密码登录了

三、Redis

(1)安装

docker pull redis

(2)使用

创建挂载文件

在conf文件夹里面新建一个redis.conf配置文件,配置文件的内容可以自己去redis的官网下载,这里给出自己的配置文件,注意将这行配置daemonize yes改为no,或者注释掉,不然docker启动不了

# Redis configuration file example.## Note that in order to read the configuration file, Redis must be# started with the file path as first argument:## ./redis-server /path/to/redis.conf# Note on units: when memory size is needed, it is possible to specify# it in the usual form of 1k 5GB 4M and so forth:## 1k => 1000 bytes# 1kb => 1024 bytes# 1m => 1000000 bytes# 1mb => 1024*1024 bytes# 1g => 1000000000 bytes# 1gb => 1024*1024*1024 bytes## units are case insensitive so 1GB 1Gb 1gB are all the same.################################## INCLUDES #################################### Include one or more other config files here.  This is useful if you# have a standard template that goes to all Redis servers but also need# to customize a few per-server settings.  Include files can include# other files, so use this wisely.## Notice option "include" won't be rewritten by command "CONFIG REWRITE"# from admin or Redis Sentinel. Since Redis always uses the last processed# line as value of a configuration directive, you'd better put includes# at the beginning of this file to avoid overwriting config change at runtime.## If instead you are interested in using includes to override configuration# options, it is better to use include as the last line.## include /path/to/local.conf# include /path/to/other.conf################################## MODULES ###################################### Load modules at startup. If the server is not able to load modules# it will abort. It is possible to use multiple loadmodule directives.## loadmodule /path/to/my_module.so# loadmodule /path/to/other_module.so################################## NETWORK ###################################### By default, if no "bind" configuration directive is specified, Redis listens# for connections from all the network interfaces available on the server.# It is possible to listen to just one or multiple selected interfaces using# the "bind" configuration directive, followed by one or more IP addresses.## Examples:## bind 192.168.1.100 10.0.0.1# bind 127.0.0.1 ::1## ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the# internet, binding to all the interfaces is dangerous and will expose the# instance to everybody on the internet. So by default we uncomment the# following bind directive, that will force Redis to listen only into# the IPv4 lookback interface address (this means Redis will be able to# accept connections only from clients running into the same computer it# is running).## IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES# JUST COMMENT THE FOLLOWING LINE.# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~bind 0.0.0.0# Protected mode is a layer of security protection, in order to avoid that# Redis instances left open on the internet are accessed and exploited.## When protected mode is on and if:## 1) The server is not binding explicitly to a set of addresses using the#    "bind" directive.# 2) No password is configured.## The server only accepts connections from clients connecting from the# IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain# sockets.## By default protected mode is enabled. You should disable it only if# you are sure you want clients from other hosts to connect to Redis# even if no authentication is configured, nor a specific set of interfaces# are explicitly listed using the "bind" directive.protected-mode no# Accept connections on the specified port, default is 6379 (IANA #815344).# If port 0 is specified Redis will not listen on a TCP socket.port 6379# TCP listen() backlog.## In high requests-per-second environments you need an high backlog in order# to avoid slow clients connections issues. Note that the Linux kernel# will silently truncate it to the value of /proc/sys/net/core/somaxconn so# make sure to raise both the value of somaxconn and tcp_max_syn_backlog# in order to get the desired effect.tcp-backlog 511# Unix socket.## Specify the path for the Unix socket that will be used to listen for# incoming connections. There is no default, so Redis will not listen# on a unix socket when not specified.## unixsocket /tmp/redis.sock# unixsocketperm 700# Close the connection after a client is idle for N seconds (0 to disable)timeout 0# TCP keepalive.## If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence# of communication. This is useful for two reasons:## 1) Detect dead peers.# 2) Take the connection alive from the point of view of network#    equipment in the middle.## On Linux, the specified value (in seconds) is the period used to send ACKs.# Note that to close the connection the double of the time is needed.# On other kernels the period depends on the kernel configuration.## A reasonable value for this option is 300 seconds, which is the new# Redis default starting with Redis 3.2.1.tcp-keepalive 300################################# GENERAL ###################################### By default Redis does not run as a daemon. Use 'yes' if you need it.# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.#daemonize yes# If you run Redis from upstart or systemd, Redis can interact with your# supervision tree. Options:#   supervised no      - no supervision interaction#   supervised upstart - signal upstart by putting Redis into SIGSTOP mode#   supervised systemd - signal systemd by writing READY=1 to $NOTIFY_SOCKET#   supervised auto    - detect upstart or systemd method based on#                        UPSTART_JOB or NOTIFY_SOCKET environment variables# Note: these supervision methods only signal "process is ready."#       They do not enable continuous liveness pings back to your supervisor.supervised no# If a pid file is specified, Redis writes it where specified at startup# and removes it at exit.## When the server runs non daemonized, no pid file is created if none is# specified in the configuration. When the server is daemonized, the pid file# is used even if not specified, defaulting to "/var/run/redis.pid".## Creating a pid file is best effort: if Redis is not able to create it# nothing bad happens, the server will start and run normally.pidfile /var/run/redis_6379.pid# Specify the server verbosity level.# This can be one of:# debug (a lot of information, useful for development/testing)# verbose (many rarely useful info, but not a mess like the debug level)# notice (moderately verbose, what you want in production probably)# warning (only very important / critical messages are logged)loglevel notice# Specify the log file name. Also the empty string can be used to force# Redis to log on the standard output. Note that if you use standard# output for logging but daemonize, logs will be sent to /dev/nulllogfile ""# To enable logging to the system logger, just set 'syslog-enabled' to yes,# and optionally update the other syslog parameters to suit your needs.# syslog-enabled no# Specify the syslog identity.# syslog-ident redis# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.# syslog-facility local0# Set the number of databases. The default database is DB 0, you can select# a different one on a per-connection basis using SELECT <dbid> where# dbid is a number between 0 and 'databases'-1databases 16# By default Redis shows an ASCII art logo only when started to log to the# standard output and if the standard output is a TTY. Basically this means# that normally a logo is displayed only in interactive sessions.## However it is possible to force the pre-4.0 behavior and always show a# ASCII art logo in startup logs by setting the following option to yes.always-show-logo yes################################ SNAPSHOTTING  ################################## Save the DB on disk:##   save <seconds> <changes>##   Will save the DB if both the given number of seconds and the given#   number of write operations against the DB occurred.##   In the example below the behaviour will be to save:#   after 900 sec (15 min) if at least 1 key changed#   after 300 sec (5 min) if at least 10 keys changed#   after 60 sec if at least 10000 keys changed##   Note: you can disable saving completely by commenting out all "save" lines.##   It is also possible to remove all the previously configured save#   points by adding a save directive with a single empty string argument#   like in the following example:##   save ""save 900 1save 300 10save 60 10000# By default Redis will stop accepting writes if RDB snapshots are enabled# (at least one save point) and the latest background save failed.# This will make the user aware (in a hard way) that data is not persisting# on disk properly, otherwise chances are that no one will notice and some# disaster will happen.## If the background saving process will start working again Redis will# automatically allow writes again.## However if you have setup your proper monitoring of the Redis server# and persistence, you may want to disable this feature so that Redis will# continue to work as usual even if there are problems with disk,# permissions, and so forth.stop-writes-on-bgsave-error yes# Compress string objects using LZF when dump .rdb databases?# For default that's set to 'yes' as it's almost always a win.# If you want to save some CPU in the saving child set it to 'no' but# the dataset will likely be bigger if you have compressible values or keys.rdbcompression yes# Since version 5 of RDB a CRC64 checksum is placed at the end of the file.# This makes the format more resistant to corruption but there is a performance# hit to pay (around 10%) when saving and loading RDB files, so you can disable it# for maximum performances.## RDB files created with checksum disabled have a checksum of zero that will# tell the loading code to skip the check.rdbchecksum yes# The filename where to dump the DBdbfilename dump.rdb# The working directory.## The DB will be written inside this directory, with the filename specified# above using the 'dbfilename' configuration directive.## The Append Only File will also be created inside this directory.## Note that you must specify a directory here, not a file name.dir ./################################# REPLICATION ################################## Master-Slave replication. Use slaveof to make a Redis instance a copy of# another Redis server. A few things to understand ASAP about Redis replication.## 1) Redis replication is asynchronous, but you can configure a master to#    stop accepting writes if it appears to be not connected with at least#    a given number of slaves.# 2) Redis slaves are able to perform a partial resynchronization with the#    master if the replication link is lost for a relatively small amount of#    time. You may want to configure the replication backlog size (see the next#    sections of this file) with a sensible value depending on your needs.# 3) Replication is automatic and does not need user intervention. After a#    network partition slaves automatically try to reconnect to masters#    and resynchronize with them.## slaveof <masterip> <masterport># If the master is password protected (using the "requirepass" configuration# directive below) it is possible to tell the slave to authenticate before# starting the replication synchronization process, otherwise the master will# refuse the slave request.## masterauth <master-password># When a slave loses its connection with the master, or when the replication# is still in progress, the slave can act in two different ways:## 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will#    still reply to client requests, possibly with out of date data, or the#    data set may just be empty if this is the first synchronization.## 2) if slave-serve-stale-data is set to 'no' the slave will reply with#    an error "SYNC with master in progress" to all the kind of commands#    but to INFO and SLAVEOF.#slave-serve-stale-data yes# You can configure a slave instance to accept writes or not. Writing against# a slave instance may be useful to store some ephemeral data (because data# written on a slave will be easily deleted after resync with the master) but# may also cause problems if clients are writing to it because of a# misconfiguration.## Since Redis 2.6 by default slaves are read-only.## Note: read only slaves are not designed to be exposed to untrusted clients# on the internet. It's just a protection layer against misuse of the instance.# Still a read only slave exports by default all the administrative commands# such as CONFIG, DEBUG, and so forth. To a limited extent you can improve# security of read only slaves using 'rename-command' to shadow all the# administrative / dangerous commands.slave-read-only yes# Replication SYNC strategy: disk or socket.## -------------------------------------------------------# WARNING: DISKLESS REPLICATION IS EXPERIMENTAL CURRENTLY# -------------------------------------------------------## New slaves and reconnecting slaves that are not able to continue the replication# process just receiving differences, need to do what is called a "full# synchronization". An RDB file is transmitted from the master to the slaves.# The transmission can happen in two different ways:## 1) Disk-backed: The Redis master creates a new process that writes the RDB#                 file on disk. Later the file is transferred by the parent#                 process to the slaves incrementally.# 2) Diskless: The Redis master creates a new process that directly writes the#              RDB file to slave sockets, without touching the disk at all.## With disk-backed replication, while the RDB file is generated, more slaves# can be queued and served with the RDB file as soon as the current child producing# the RDB file finishes its work. With diskless replication instead once# the transfer starts, new slaves arriving will be queued and a new transfer# will start when the current one terminates.## When diskless replication is used, the master waits a configurable amount of# time (in seconds) before starting the transfer in the hope that multiple slaves# will arrive and the transfer can be parallelized.## With slow disks and fast (large bandwidth) networks, diskless replication# works better.repl-diskless-sync no# When diskless replication is enabled, it is possible to configure the delay# the server waits in order to spawn the child that transfers the RDB via socket# to the slaves.## This is important since once the transfer starts, it is not possible to serve# new slaves arriving, that will be queued for the next RDB transfer, so the server# waits a delay in order to let more slaves arrive.## The delay is specified in seconds, and by default is 5 seconds. To disable# it entirely just set it to 0 seconds and the transfer will start ASAP.repl-diskless-sync-delay 5# Slaves send PINGs to server in a predefined interval. It's possible to change# this interval with the repl_ping_slave_period option. The default value is 10# seconds.## repl-ping-slave-period 10# The following option sets the replication timeout for:## 1) Bulk transfer I/O during SYNC, from the point of view of slave.# 2) Master timeout from the point of view of slaves (data, pings).# 3) Slave timeout from the point of view of masters (REPLCONF ACK pings).## It is important to make sure that this value is greater than the value# specified for repl-ping-slave-period otherwise a timeout will be detected# every time there is low traffic between the master and the slave.## repl-timeout 60# Disable TCP_NODELAY on the slave socket after SYNC?## If you select "yes" Redis will use a smaller number of TCP packets and# less bandwidth to send data to slaves. But this can add a delay for# the data to appear on the slave side, up to 40 milliseconds with# Linux kernels using a default configuration.## If you select "no" the delay for data to appear on the slave side will# be reduced but more bandwidth will be used for replication.## By default we optimize for low latency, but in very high traffic conditions# or when the master and slaves are many hops away, turning this to "yes" may# be a good idea.repl-disable-tcp-nodelay no# Set the replication backlog size. The backlog is a buffer that accumulates# slave data when slaves are disconnected for some time, so that when a slave# wants to reconnect again, often a full resync is not needed, but a partial# resync is enough, just passing the portion of data the slave missed while# disconnected.## The bigger the replication backlog, the longer the time the slave can be# disconnected and later be able to perform a partial resynchronization.## The backlog is only allocated once there is at least a slave connected.## repl-backlog-size 1mb# After a master has no longer connected slaves for some time, the backlog# will be freed. The following option configures the amount of seconds that# need to elapse, starting from the time the last slave disconnected, for# the backlog buffer to be freed.## Note that slaves never free the backlog for timeout, since they may be# promoted to masters later, and should be able to correctly "partially# resynchronize" with the slaves: hence they should always accumulate backlog.## A value of 0 means to never release the backlog.## repl-backlog-ttl 3600# The slave priority is an integer number published by Redis in the INFO output.# It is used by Redis Sentinel in order to select a slave to promote into a# master if the master is no longer working correctly.## A slave with a low priority number is considered better for promotion, so# for instance if there are three slaves with priority 10, 100, 25 Sentinel will# pick the one with priority 10, that is the lowest.## However a special priority of 0 marks the slave as not able to perform the# role of master, so a slave with priority of 0 will never be selected by# Redis Sentinel for promotion.## By default the priority is 100.slave-priority 100# It is possible for a master to stop accepting writes if there are less than# N slaves connected, having a lag less or equal than M seconds.## The N slaves need to be in "online" state.## The lag in seconds, that must be <= the specified value, is calculated from# the last ping received from the slave, that is usually sent every second.## This option does not GUARANTEE that N replicas will accept the write, but# will limit the window of exposure for lost writes in case not enough slaves# are available, to the specified number of seconds.## For example to require at least 3 slaves with a lag <= 10 seconds use:## min-slaves-to-write 3# min-slaves-max-lag 10## Setting one or the other to 0 disables the feature.## By default min-slaves-to-write is set to 0 (feature disabled) and# min-slaves-max-lag is set to 10.# A Redis master is able to list the address and port of the attached# slaves in different ways. For example the "INFO replication" section# offers this information, which is used, among other tools, by# Redis Sentinel in order to discover slave instances.# Another place where this info is available is in the output of the# "ROLE" command of a master.## The listed IP and address normally reported by a slave is obtained# in the following way:##   IP: The address is auto detected by checking the peer address#   of the socket used by the slave to connect with the master.##   Port: The port is communicated by the slave during the replication#   handshake, and is normally the port that the slave is using to#   list for connections.## However when port forwarding or Network Address Translation (NAT) is# used, the slave may be actually reachable via different IP and port# pairs. The following two options can be used by a slave in order to# report to its master a specific set of IP and port, so that both INFO# and ROLE will report those values.## There is no need to use both the options if you need to override just# the port or the IP address.## slave-announce-ip 5.5.5.5# slave-announce-port 1234################################## SECURITY #################################### Require clients to issue AUTH <PASSWORD> before processing any other# commands.  This might be useful in environments in which you do not trust# others with access to the host running redis-server.## This should stay commented out for backward compatibility and because most# people do not need auth (e.g. they run their own servers).## Warning: since Redis is pretty fast an outside user can try up to# 150k passwords per second against a good box. This means that you should# use a very strong password otherwise it will be very easy to break.##requirepass 123# Command renaming.## It is possible to change the name of dangerous commands in a shared# environment. For instance the CONFIG command may be renamed into something# hard to guess so that it will still be available for internal-use tools# but not available for general clients.## Example:## rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52## It is also possible to completely kill a command by renaming it into# an empty string:## rename-command CONFIG ""## Please note that changing the name of commands that are logged into the# AOF file or transmitted to slaves may cause problems.################################### CLIENTS ##################################### Set the max number of connected clients at the same time. By default# this limit is set to 10000 clients, however if the Redis server is not# able to configure the process file limit to allow for the specified limit# the max number of allowed clients is set to the current file limit# minus 32 (as Redis reserves a few file descriptors for internal uses).## Once the limit is reached Redis will close all the new connections sending# an error 'max number of clients reached'.## maxclients 10000############################## MEMORY MANAGEMENT ################################# Set a memory usage limit to the specified amount of bytes.# When the memory limit is reached Redis will try to remove keys# according to the eviction policy selected (see maxmemory-policy).## If Redis can't remove keys according to the policy, or if the policy is# set to 'noeviction', Redis will start to reply with errors to commands# that would use more memory, like SET, LPUSH, and so on, and will continue# to reply to read-only commands like GET.## This option is usually useful when using Redis as an LRU or LFU cache, or to# set a hard memory limit for an instance (using the 'noeviction' policy).## WARNING: If you have slaves attached to an instance with maxmemory on,# the size of the output buffers needed to feed the slaves are subtracted# from the used memory count, so that network problems / resyncs will# not trigger a loop where keys are evicted, and in turn the output# buffer of slaves is full with DELs of keys evicted triggering the deletion# of more keys, and so forth until the database is completely emptied.## In short... if you have slaves attached it is suggested that you set a lower# limit for maxmemory so that there is some free RAM on the system for slave# output buffers (but this is not needed if the policy is 'noeviction').## maxmemory <bytes># MAXMEMORY POLICY: how Redis will select what to remove when maxmemory# is reached. You can select among five behaviors:## volatile-lru -> Evict using approximated LRU among the keys with an expire set.# allkeys-lru -> Evict any key using approximated LRU.# volatile-lfu -> Evict using approximated LFU among the keys with an expire set.# allkeys-lfu -> Evict any key using approximated LFU.# volatile-random -> Remove a random key among the ones with an expire set.# allkeys-random -> Remove a random key, any key.# volatile-ttl -> Remove the key with the nearest expire time (minor TTL)# noeviction -> Don't evict anything, just return an error on write operations.## LRU means Least Recently Used# LFU means Least Frequently Used## Both LRU, LFU and volatile-ttl are implemented using approximated# randomized algorithms.## Note: with any of the above policies, Redis will return an error on write#       operations, when there are no suitable keys for eviction.##       At the date of writing these commands are: set setnx setex append#       incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd#       sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby#       zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby#       getset mset msetnx exec sort## The default is:## maxmemory-policy noeviction# LRU, LFU and minimal TTL algorithms are not precise algorithms but approximated# algorithms (in order to save memory), so you can tune it for speed or# accuracy. For default Redis will check five keys and pick the one that was# used less recently, you can change the sample size using the following# configuration directive.## The default of 5 produces good enough results. 10 Approximates very closely# true LRU but costs more CPU. 3 is faster but not very accurate.## maxmemory-samples 5############################# LAZY FREEING ##################################### Redis has two primitives to delete keys. One is called DEL and is a blocking# deletion of the object. It means that the server stops processing new commands# in order to reclaim all the memory associated with an object in a synchronous# way. If the key deleted is associated with a small object, the time needed# in order to execute the DEL command is very small and comparable to most other# O(1) or O(log_N) commands in Redis. However if the key is associated with an# aggregated value containing millions of elements, the server can block for# a long time (even seconds) in order to complete the operation.## For the above reasons Redis also offers non blocking deletion primitives# such as UNLINK (non blocking DEL) and the ASYNC option of FLUSHALL and# FLUSHDB commands, in order to reclaim memory in background. Those commands# are executed in constant time. Another thread will incrementally free the# object in the background as fast as possible.## DEL, UNLINK and ASYNC option of FLUSHALL and FLUSHDB are user-controlled.# It's up to the design of the application to understand when it is a good# idea to use one or the other. However the Redis server sometimes has to# delete keys or flush the whole database as a side effect of other operations.# Specifically Redis deletes objects independently of a user call in the# following scenarios:## 1) On eviction, because of the maxmemory and maxmemory policy configurations,#    in order to make room for new data, without going over the specified#    memory limit.# 2) Because of expire: when a key with an associated time to live (see the#    EXPIRE command) must be deleted from memory.# 3) Because of a side effect of a command that stores data on a key that may#    already exist. For example the RENAME command may delete the old key#    content when it is replaced with another one. Similarly SUNIONSTORE#    or SORT with STORE option may delete existing keys. The SET command#    itself removes any old content of the specified key in order to replace#    it with the specified string.# 4) During replication, when a slave performs a full resynchronization with#    its master, the content of the whole database is removed in order to#    load the RDB file just transfered.## In all the above cases the default is to delete objects in a blocking way,# like if DEL was called. However you can configure each case specifically# in order to instead release memory in a non-blocking way like if UNLINK# was called, using the following configuration directives:lazyfree-lazy-eviction nolazyfree-lazy-expire nolazyfree-lazy-server-del noslave-lazy-flush no############################## APPEND ONLY MODE ################################ By default Redis asynchronously dumps the dataset on disk. This mode is# good enough in many applications, but an issue with the Redis process or# a power outage may result into a few minutes of writes lost (depending on# the configured save points).## The Append Only File is an alternative persistence mode that provides# much better durability. For instance using the default data fsync policy# (see later in the config file) Redis can lose just one second of writes in a# dramatic event like a server power outage, or a single write if something# wrong with the Redis process itself happens, but the operating system is# still running correctly.## AOF and RDB persistence can be enabled at the same time without problems.# If the AOF is enabled on startup Redis will load the AOF, that is the file# with the better durability guarantees.## Please check http://redis.io/topics/persistence for more information.appendonly no# The name of the append only file (default: "appendonly.aof")appendfilename "appendonly.aof"# The fsync() call tells the Operating System to actually write data on disk# instead of waiting for more data in the output buffer. Some OS will really flush# data on disk, some other OS will just try to do it ASAP.## Redis supports three different modes:## no: don't fsync, just let the OS flush the data when it wants. Faster.# always: fsync after every write to the append only log. Slow, Safest.# everysec: fsync only one time every second. Compromise.## The default is "everysec", as that's usually the right compromise between# speed and data safety. It's up to you to understand if you can relax this to# "no" that will let the operating system flush the output buffer when# it wants, for better performances (but if you can live with the idea of# some data loss consider the default persistence mode that's snapshotting),# or on the contrary, use "always" that's very slow but a bit safer than# everysec.## More details please check the following article:# http://antirez.com/post/redis-persistence-demystified.html## If unsure, use "everysec".# appendfsync alwaysappendfsync everysec# appendfsync no# When the AOF fsync policy is set to always or everysec, and a background# saving process (a background save or AOF log background rewriting) is# performing a lot of I/O against the disk, in some Linux configurations# Redis may block too long on the fsync() call. Note that there is no fix for# this currently, as even performing fsync in a different thread will block# our synchronous write(2) call.## In order to mitigate this problem it's possible to use the following option# that will prevent fsync() from being called in the main process while a# BGSAVE or BGREWRITEAOF is in progress.## This means that while another child is saving, the durability of Redis is# the same as "appendfsync none". In practical terms, this means that it is# possible to lose up to 30 seconds of log in the worst scenario (with the# default Linux settings).## If you have latency problems turn this to "yes". Otherwise leave it as# "no" that is the safest pick from the point of view of durability.no-appendfsync-on-rewrite no# Automatic rewrite of the append only file.# Redis is able to automatically rewrite the log file implicitly calling# BGREWRITEAOF when the AOF log size grows by the specified percentage.## This is how it works: Redis remembers the size of the AOF file after the# latest rewrite (if no rewrite has happened since the restart, the size of# the AOF at startup is used).## This base size is compared to the current size. If the current size is# bigger than the specified percentage, the rewrite is triggered. Also# you need to specify a minimal size for the AOF file to be rewritten, this# is useful to avoid rewriting the AOF file even if the percentage increase# is reached but it is still pretty small.## Specify a percentage of zero in order to disable the automatic AOF# rewrite feature.auto-aof-rewrite-percentage 100auto-aof-rewrite-min-size 64mb# An AOF file may be found to be truncated at the end during the Redis# startup process, when the AOF data gets loaded back into memory.# This may happen when the system where Redis is running# crashes, especially when an ext4 filesystem is mounted without the# data=ordered option (however this can't happen when Redis itself# crashes or aborts but the operating system still works correctly).## Redis can either exit with an error when this happens, or load as much# data as possible (the default now) and start if the AOF file is found# to be truncated at the end. The following option controls this behavior.## If aof-load-truncated is set to yes, a truncated AOF file is loaded and# the Redis server starts emitting a log to inform the user of the event.# Otherwise if the option is set to no, the server aborts with an error# and refuses to start. When the option is set to no, the user requires# to fix the AOF file using the "redis-check-aof" utility before to restart# the server.## Note that if the AOF file will be found to be corrupted in the middle# the server will still exit with an error. This option only applies when# Redis will try to read more data from the AOF file but not enough bytes# will be found.aof-load-truncated yes# When rewriting the AOF file, Redis is able to use an RDB preamble in the# AOF file for faster rewrites and recoveries. When this option is turned# on the rewritten AOF file is composed of two different stanzas:##   [RDB file][AOF tail]## When loading Redis recognizes that the AOF file starts with the "REDIS"# string and loads the prefixed RDB file, and continues loading the AOF# tail.## This is currently turned off by default in order to avoid the surprise# of a format change, but will at some point be used as the default.aof-use-rdb-preamble no################################ LUA SCRIPTING  ################################ Max execution time of a Lua script in milliseconds.## If the maximum execution time is reached Redis will log that a script is# still in execution after the maximum allowed time and will start to# reply to queries with an error.## When a long running script exceeds the maximum execution time only the# SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be# used to stop a script that did not yet called write commands. The second# is the only way to shut down the server in the case a write command was# already issued by the script but the user doesn't want to wait for the natural# termination of the script.## Set it to 0 or a negative value for unlimited execution without warnings.lua-time-limit 5000################################ REDIS CLUSTER  ################################# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++# WARNING EXPERIMENTAL: Redis Cluster is considered to be stable code, however# in order to mark it as "mature" we need to wait for a non trivial percentage# of users to deploy it in production.# ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++## Normal Redis instances can't be part of a Redis Cluster; only nodes that are# started as cluster nodes can. In order to start a Redis instance as a# cluster node enable the cluster support uncommenting the following:## cluster-enabled yes# Every cluster node has a cluster configuration file. This file is not# intended to be edited by hand. It is created and updated by Redis nodes.# Every Redis Cluster node requires a different cluster configuration file.# Make sure that instances running in the same system do not have# overlapping cluster configuration file names.## cluster-config-file nodes-6379.conf# Cluster node timeout is the amount of milliseconds a node must be unreachable# for it to be considered in failure state.# Most other internal time limits are multiple of the node timeout.## cluster-node-timeout 15000# A slave of a failing master will avoid to start a failover if its data# looks too old.## There is no simple way for a slave to actually have an exact measure of# its "data age", so the following two checks are performed:## 1) If there are multiple slaves able to failover, they exchange messages#    in order to try to give an advantage to the slave with the best#    replication offset (more data from the master processed).#    Slaves will try to get their rank by offset, and apply to the start#    of the failover a delay proportional to their rank.## 2) Every single slave computes the time of the last interaction with#    its master. This can be the last ping or command received (if the master#    is still in the "connected" state), or the time that elapsed since the#    disconnection with the master (if the replication link is currently down).#    If the last interaction is too old, the slave will not try to failover#    at all.## The point "2" can be tuned by user. Specifically a slave will not perform# the failover if, since the last interaction with the master, the time# elapsed is greater than:##   (node-timeout * slave-validity-factor) + repl-ping-slave-period## So for example if node-timeout is 30 seconds, and the slave-validity-factor# is 10, and assuming a default repl-ping-slave-period of 10 seconds, the# slave will not try to failover if it was not able to talk with the master# for longer than 310 seconds.## A large slave-validity-factor may allow slaves with too old data to failover# a master, while a too small value may prevent the cluster from being able to# elect a slave at all.## For maximum availability, it is possible to set the slave-validity-factor# to a value of 0, which means, that slaves will always try to failover the# master regardless of the last time they interacted with the master.# (However they'll always try to apply a delay proportional to their# offset rank).## Zero is the only value able to guarantee that when all the partitions heal# the cluster will always be able to continue.## cluster-slave-validity-factor 10# Cluster slaves are able to migrate to orphaned masters, that are masters# that are left without working slaves. This improves the cluster ability# to resist to failures as otherwise an orphaned master can't be failed over# in case of failure if it has no working slaves.## Slaves migrate to orphaned masters only if there are still at least a# given number of other working slaves for their old master. This number# is the "migration barrier". A migration barrier of 1 means that a slave# will migrate only if there is at least 1 other working slave for its master# and so forth. It usually reflects the number of slaves you want for every# master in your cluster.## Default is 1 (slaves migrate only if their masters remain with at least# one slave). To disable migration just set it to a very large value.# A value of 0 can be set but is useful only for debugging and dangerous# in production.## cluster-migration-barrier 1# By default Redis Cluster nodes stop accepting queries if they detect there# is at least an hash slot uncovered (no available node is serving it).# This way if the cluster is partially down (for example a range of hash slots# are no longer covered) all the cluster becomes, eventually, unavailable.# It automatically returns available as soon as all the slots are covered again.## However sometimes you want the subset of the cluster which is working,# to continue to accept queries for the part of the key space that is still# covered. In order to do so, just set the cluster-require-full-coverage# option to no.## cluster-require-full-coverage yes# In order to setup your cluster make sure to read the documentation# available at http://redis.io web site.########################## CLUSTER DOCKER/NAT support  ######################### In certain deployments, Redis Cluster nodes address discovery fails, because# addresses are NAT-ted or because ports are forwarded (the typical case is# Docker and other containers).## In order to make Redis Cluster working in such environments, a static# configuration where each node knows its public address is needed. The# following two options are used for this scope, and are:## * cluster-announce-ip# * cluster-announce-port# * cluster-announce-bus-port## Each instruct the node about its address, client port, and cluster message# bus port. The information is then published in the header of the bus packets# so that other nodes will be able to correctly map the address of the node# publishing the information.## If the above options are not used, the normal Redis Cluster auto-detection# will be used instead.## Note that when remapped, the bus port may not be at the fixed offset of# clients port + 10000, so you can specify any port and bus-port depending# on how they get remapped. If the bus-port is not set, a fixed offset of# 10000 will be used as usually.## Example:## cluster-announce-ip 10.1.1.5# cluster-announce-port 6379# cluster-announce-bus-port 6380################################## SLOW LOG #################################### The Redis Slow Log is a system to log queries that exceeded a specified# execution time. The execution time does not include the I/O operations# like talking with the client, sending the reply and so forth,# but just the time needed to actually execute the command (this is the only# stage of command execution where the thread is blocked and can not serve# other requests in the meantime).## You can configure the slow log with two parameters: one tells Redis# what is the execution time, in microseconds, to exceed in order for the# command to get logged, and the other parameter is the length of the# slow log. When a new command is logged the oldest one is removed from the# queue of logged commands.# The following time is expressed in microseconds, so 1000000 is equivalent# to one second. Note that a negative number disables the slow log, while# a value of zero forces the logging of every command.slowlog-log-slower-than 10000# There is no limit to this length. Just be aware that it will consume memory.# You can reclaim memory used by the slow log with SLOWLOG RESET.slowlog-max-len 128################################ LATENCY MONITOR ############################### The Redis latency monitoring subsystem samples different operations# at runtime in order to collect data related to possible sources of# latency of a Redis instance.## Via the LATENCY command this information is available to the user that can# print graphs and obtain reports.## The system only logs operations that were performed in a time equal or# greater than the amount of milliseconds specified via the# latency-monitor-threshold configuration directive. When its value is set# to zero, the latency monitor is turned off.## By default latency monitoring is disabled since it is mostly not needed# if you don't have latency issues, and collecting data has a performance# impact, that while very small, can be measured under big load. Latency# monitoring can easily be enabled at runtime using the command# "CONFIG SET latency-monitor-threshold <milliseconds>" if needed.latency-monitor-threshold 0############################# EVENT NOTIFICATION ############################### Redis can notify Pub/Sub clients about events happening in the key space.# This feature is documented at http://redis.io/topics/notifications## For instance if keyspace events notification is enabled, and a client# performs a DEL operation on key "foo" stored in the Database 0, two# messages will be published via Pub/Sub:## PUBLISH __keyspace@0__:foo del# PUBLISH __keyevent@0__:del foo## It is possible to select the events that Redis will notify among a set# of classes. Every class is identified by a single character:##  K     Keyspace events, published with __keyspace@<db>__ prefix.#  E     Keyevent events, published with __keyevent@<db>__ prefix.#  g     Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ...#  $     String commands#  l     List commands#  s     Set commands#  h     Hash commands#  z     Sorted set commands#  x     Expired events (events generated every time a key expires)#  e     Evicted events (events generated when a key is evicted for maxmemory)#  A     Alias for g$lshzxe, so that the "AKE" string means all the events.##  The "notify-keyspace-events" takes as argument a string that is composed#  of zero or multiple characters. The empty string means that notifications#  are disabled.##  Example: to enable list and generic events, from the point of view of the#           event name, use:##  notify-keyspace-events Elg##  Example 2: to get the stream of the expired keys subscribing to channel#             name __keyevent@0__:expired use:##  notify-keyspace-events Ex##  By default all notifications are disabled because most users don't need#  this feature and the feature has some overhead. Note that if you don't#  specify at least one of K or E, no events will be delivered.notify-keyspace-events ""############################### ADVANCED CONFIG ################################ Hashes are encoded using a memory efficient data structure when they have a# small number of entries, and the biggest entry does not exceed a given# threshold. These thresholds can be configured using the following directives.hash-max-ziplist-entries 512hash-max-ziplist-value 64# Lists are also encoded in a special way to save a lot of space.# The number of entries allowed per internal list node can be specified# as a fixed maximum size or a maximum number of elements.# For a fixed maximum size, use -5 through -1, meaning:# -5: max size: 64 Kb  <-- not recommended for normal workloads# -4: max size: 32 Kb  <-- not recommended# -3: max size: 16 Kb  <-- probably not recommended# -2: max size: 8 Kb   <-- good# -1: max size: 4 Kb   <-- good# Positive numbers mean store up to _exactly_ that number of elements# per list node.# The highest performing option is usually -2 (8 Kb size) or -1 (4 Kb size),# but if your use case is unique, adjust the settings as necessary.list-max-ziplist-size -2# Lists may also be compressed.# Compress depth is the number of quicklist ziplist nodes from *each* side of# the list to *exclude* from compression.  The head and tail of the list# are always uncompressed for fast push/pop operations.  Settings are:# 0: disable all list compression# 1: depth 1 means "don't start compressing until after 1 node into the list,#    going from either the head or tail"#    So: [head]->node->node->...->node->[tail]#    [head], [tail] will always be uncompressed; inner nodes will compress.# 2: [head]->[next]->node->node->...->node->[prev]->[tail]#    2 here means: don't compress head or head->next or tail->prev or tail,#    but compress all nodes between them.# 3: [head]->[next]->[next]->node->node->...->node->[prev]->[prev]->[tail]# etc.list-compress-depth 0# Sets have a special encoding in just one case: when a set is composed# of just strings that happen to be integers in radix 10 in the range# of 64 bit signed integers.# The following configuration setting sets the limit in the size of the# set in order to use this special memory saving encoding.set-max-intset-entries 512# Similarly to hashes and lists, sorted sets are also specially encoded in# order to save a lot of space. This encoding is only used when the length and# elements of a sorted set are below the following limits:zset-max-ziplist-entries 128zset-max-ziplist-value 64# HyperLogLog sparse representation bytes limit. The limit includes the# 16 bytes header. When an HyperLogLog using the sparse representation crosses# this limit, it is converted into the dense representation.## A value greater than 16000 is totally useless, since at that point the# dense representation is more memory efficient.## The suggested value is ~ 3000 in order to have the benefits of# the space efficient encoding without slowing down too much PFADD,# which is O(N) with the sparse encoding. The value can be raised to# ~ 10000 when CPU is not a concern, but space is, and the data set is# composed of many HyperLogLogs with cardinality in the 0 - 15000 range.hll-sparse-max-bytes 3000# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in# order to help rehashing the main Redis hash table (the one mapping top-level# keys to values). The hash table implementation Redis uses (see dict.c)# performs a lazy rehashing: the more operation you run into a hash table# that is rehashing, the more rehashing "steps" are performed, so if the# server is idle the rehashing is never complete and some more memory is used# by the hash table.## The default is to use this millisecond 10 times every second in order to# actively rehash the main dictionaries, freeing memory when possible.## If unsure:# use "activerehashing no" if you have hard latency requirements and it is# not a good thing in your environment that Redis can reply from time to time# to queries with 2 milliseconds delay.## use "activerehashing yes" if you don't have such hard requirements but# want to free memory asap when possible.activerehashing yes# The client output buffer limits can be used to force disconnection of clients# that are not reading data from the server fast enough for some reason (a# common reason is that a Pub/Sub client can't consume messages as fast as the# publisher can produce them).## The limit can be set differently for the three different classes of clients:## normal -> normal clients including MONITOR clients# slave  -> slave clients# pubsub -> clients subscribed to at least one pubsub channel or pattern## The syntax of every client-output-buffer-limit directive is the following:## client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>## A client is immediately disconnected once the hard limit is reached, or if# the soft limit is reached and remains reached for the specified number of# seconds (continuously).# So for instance if the hard limit is 32 megabytes and the soft limit is# 16 megabytes / 10 seconds, the client will get disconnected immediately# if the size of the output buffers reach 32 megabytes, but will also get# disconnected if the client reaches 16 megabytes and continuously overcomes# the limit for 10 seconds.## By default normal clients are not limited because they don't receive data# without asking (in a push way), but just after a request, so only# asynchronous clients may create a scenario where data is requested faster# than it can read.## Instead there is a default limit for pubsub and slave clients, since# subscribers and slaves receive data in a push fashion.## Both the hard or the soft limit can be disabled by setting them to zero.client-output-buffer-limit normal 0 0 0client-output-buffer-limit slave 256mb 64mb 60client-output-buffer-limit pubsub 32mb 8mb 60# Client query buffers accumulate new commands. They are limited to a fixed# amount by default in order to avoid that a protocol desynchronization (for# instance due to a bug in the client) will lead to unbound memory usage in# the query buffer. However you can configure it here if you have very special# needs, such us huge multi/exec requests or alike.## client-query-buffer-limit 1gb# In the Redis protocol, bulk requests, that are, elements representing single# strings, are normally limited ot 512 mb. However you can change this limit# here.## proto-max-bulk-len 512mb# Redis calls an internal function to perform many background tasks, like# closing connections of clients in timeout, purging expired keys that are# never requested, and so forth.## Not all tasks are performed with the same frequency, but Redis checks for# tasks to perform according to the specified "hz" value.## By default "hz" is set to 10. Raising the value will use more CPU when# Redis is idle, but at the same time will make Redis more responsive when# there are many keys expiring at the same time, and timeouts may be# handled with more precision.## The range is between 1 and 500, however a value over 100 is usually not# a good idea. Most users should use the default of 10 and raise this up to# 100 only in environments where very low latency is required.hz 10# When a child rewrites the AOF file, if the following option is enabled# the file will be fsync-ed every 32 MB of data generated. This is useful# in order to commit the file to the disk more incrementally and avoid# big latency spikes.aof-rewrite-incremental-fsync yes# Redis LFU eviction (see maxmemory setting) can be tuned. However it is a good# idea to start with the default settings and only change them after investigating# how to improve the performances and how the keys LFU change over time, which# is possible to inspect via the OBJECT FREQ command.## There are two tunable parameters in the Redis LFU implementation: the# counter logarithm factor and the counter decay time. It is important to# understand what the two parameters mean before changing them.## The LFU counter is just 8 bits per key, it's maximum value is 255, so Redis# uses a probabilistic increment with logarithmic behavior. Given the value# of the old counter, when a key is accessed, the counter is incremented in# this way:## 1. A random number R between 0 and 1 is extracted.# 2. A probability P is calculated as 1/(old_value*lfu_log_factor+1).# 3. The counter is incremented only if R < P.## The default lfu-log-factor is 10. This is a table of how the frequency# counter changes with a different number of accesses with different# logarithmic factors:## +--------+------------+------------+------------+------------+------------+# | factor | 100 hits   | 1000 hits  | 100K hits  | 1M hits    | 10M hits   |# +--------+------------+------------+------------+------------+------------+# | 0      | 104        | 255        | 255        | 255        | 255        |# +--------+------------+------------+------------+------------+------------+# | 1      | 18         | 49         | 255        | 255        | 255        |# +--------+------------+------------+------------+------------+------------+# | 10     | 10         | 18         | 142        | 255        | 255        |# +--------+------------+------------+------------+------------+------------+# | 100    | 8          | 11         | 49         | 143        | 255        |# +--------+------------+------------+------------+------------+------------+## NOTE: The above table was obtained by running the following commands:##   redis-benchmark -n 1000000 incr foo#   redis-cli object freq foo## NOTE 2: The counter initial value is 5 in order to give new objects a chance# to accumulate hits.## The counter decay time is the time, in minutes, that must elapse in order# for the key counter to be divided by two (or decremented if it has a value# less <= 10).## The default value for the lfu-decay-time is 1. A Special value of 0 means to# decay the counter every time it happens to be scanned.## lfu-log-factor 10# lfu-decay-time 1########################### ACTIVE DEFRAGMENTATION ######################### WARNING THIS FEATURE IS EXPERIMENTAL. However it was stress tested# even in production and manually tested by multiple engineers for some# time.## What is active defragmentation?# -------------------------------## Active (online) defragmentation allows a Redis server to compact the# spaces left between small allocations and deallocations of data in memory,# thus allowing to reclaim back memory.## Fragmentation is a natural process that happens with every allocator (but# less so with Jemalloc, fortunately) and certain workloads. Normally a server# restart is needed in order to lower the fragmentation, or at least to flush# away all the data and create it again. However thanks to this feature# implemented by Oran Agra for Redis 4.0 this process can happen at runtime# in an "hot" way, while the server is running.## Basically when the fragmentation is over a certain level (see the# configuration options below) Redis will start to create new copies of the# values in contiguous memory regions by exploiting certain specific Jemalloc# features (in order to understand if an allocation is causing fragmentation# and to allocate it in a better place), and at the same time, will release the# old copies of the data. This process, repeated incrementally for all the keys# will cause the fragmentation to drop back to normal values.## Important things to understand:## 1. This feature is disabled by default, and only works if you compiled Redis#    to use the copy of Jemalloc we ship with the source code of Redis.#    This is the default with Linux builds.## 2. You never need to enable this feature if you don't have fragmentation#    issues.## 3. Once you experience fragmentation, you can enable this feature when#    needed with the command "CONFIG SET activedefrag yes".## The configuration parameters are able to fine tune the behavior of the# defragmentation process. If you are not sure about what they mean it is# a good idea to leave the defaults untouched.# Enabled active defragmentation# activedefrag yes# Minimum amount of fragmentation waste to start active defrag# active-defrag-ignore-bytes 100mb# Minimum percentage of fragmentation to start active defrag# active-defrag-threshold-lower 10# Maximum percentage of fragmentation at which we use maximum effort# active-defrag-threshold-upper 100# Minimal effort for defrag in CPU percentage# active-defrag-cycle-min 25# Maximal effort for defrag in CPU percentage# active-defrag-cycle-max 75

conf用于挂载配置文件,data用于挂载数据
运行redis-server
用挂载数据的方式运行

docker run -p 6379:6379 --name redis01 -v $PWD/redis/conf/redis.conf:/etc/redis/redis.conf  -v $PWD/redis/data:/data -d redis:latest redis-server /etc/redis/redis.conf --appendonly yes
代码解读-p 6379:6379:容器里面redis 端口6379 映射 redis外部端口6379--name redis01:给该容器实例起个别名-v $PWD/redis/conf/redis.conf:/etc/redis/redis.conf:容器里面redis配置文件映射外部的配置文件-v $PWD/redis/data:/data:容器里面的数据映射外部的数据redis:latest:redis的版本为最新版redis-server /etc/redis/redis.conf:通过这个配置文件启动,该配置文件映射外部配置文件,相当于用外部配置文件启动--appendonly yes:开启数据持久化

运行redis-cli
方式一

docker exec -ti redis01 redis-cli -h 127.0.0.1 -p 6379

方式二

docker exec -i -t  redis01 /bin/bash   #进入容器实例的内部
redis-cli -p 6379     #启动redis客户端

方式三

docker exec -ti redis-6380 redis-cli

方式四(启动并设置密码)

docker run -d --name redis -p 6379:6379 redis --requirepass "password"

四、JDK

(1)安装

命令:docker pull java
注意:默认最新的jdk版本

(2)使用

启动镜像:docker run -d -it --name java01 java

命令以及参数的含义:
run:启动一个镜像容器
-d:指定容器运行于后台
-it:-i 和 -t 的缩写;
-i:以交互模式运行容器,通常与 -t 同时使用
-t:为容器重新分配一个伪输入终端,通常与 -i 同时使用
–name java01:指定容器名字,后续可以通过名字进行容器管理
最后的那个“java”指的是下载镜像时的名称

查看运行的镜像实例:docker ps

进入镜像实例内部docker exec -it <实例的名称或id> /bin/bash

五、Nginx

(1)安装

命令:docker pull nginx
默认安装最新版

(2)使用

在运行docker先提前把数据挂载的相关数据准备好
创建一个文件夹用于存放挂载数据的文件nginx,在里面创建几个文件夹如下

在conf文件夹下新建文件nginx.conf,内容如下

#定义 nginx 运行的用户和用户组
user  nginx;#nginx 进程数,建议设置为等于 CPU 总核心数,默认为1,值越大并发越强。
worker_processes  1;#全局错误日志定义类型,[ debug | info | notice | warn | error | crit ]
error_log  /var/log/nginx/error.log warn;#进程文件
pid        /var/run/nginx.pid;##以上统称为全局块events {#值越大并发越强。worker_connections  1024;
}http {#引入了mime类型数据include       /etc/nginx/mime.types;#默认的mime类型default_type  application/octet-stream;log_format  main  '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';access_log  /var/log/nginx/access.log  main;sendfile        on;#tcp_nopush     on;keepalive_timeout  65;#gzip  on;#引入conf.d目录下的所有的以conf结尾的文件include /etc/nginx/conf.d/*.conf;
}

在conf.d文件夹下新建文件default.conf,很多情况下需要修改配置都是修改该配置文件,内容如下

server {  #监听的默认端口listen       80;  #服务器的域名可以有多个,用空格隔开server_name  localhost;  #charset koi8-r;  #access_log  /var/log/nginx/log/host.access.log  main;  #代表ngixn接收请求的iplocation / {  #root   /data/nginx/html;  #将接收到的请求数据根据/usr/share/nginx/html去查找静态资源root   /usr/share/nginx/html;  #默认去/usr/share/nginx/html文件夹下找index.htmlh或者index.htmindex  index.html index.htm;  #autoindex  on;  #try_files $uri /index/index/page.html;  #try_files $uri /index/map/page.html;  }  #error_page  404              /404.html;  # redirect server error pages to the static page /50x.html  #  #默认的错误页面设置error_page   500 502 503 504  /50x.html;  #错误页面所在的位置location = /50x.html {  root   /usr/share/nginx/html;  }  # proxy the PHP scripts to Apache listening on 127.0.0.1:80  #  #location ~ \.php$ {  #    proxy_pass   http://127.0.0.1;  #}  # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000  #  #location ~ \.php$ {  #    root           html;  #    fastcgi_pass   127.0.0.1:9000;  #    fastcgi_index  index.php;  #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;  #    include        fastcgi_params;  #}  # deny access to .htaccess files, if Apache's document root  # concurs with nginx's one  #  #location ~ /\.ht {  #    deny  all;  #}
}

在html文件夹下存放页面等资源,这里存放一个index.html用于测试

<html>
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>nginx</title>
</head>
<body>
<div>
<h1>
nginx测试页面
</h1></div>
</body>  

运行镜像实例

docker run --name nginx01 -d -p 81:80 -v $PWD/nginx/html:/usr/share/nginx/html -v $PWD/nginx/conf/nginx.conf:/etc/nginx/nginx.conf  -v $PWD/nginx/logs:/var/log/nginx -v $PWD/nginx/conf.d:/etc/nginx/conf.d -d nginx参数跟上面mysql数据库挂载时的参数差不多--name nginx01 :给创建的容器起个名字-p 81:80:将容器的 80端口映射到主机的 81 端口。-v $PWD/nginx/html:/usr/share/nginx/html:将主机当前目录($PWD/nginx/html)挂载到容器的 /usr/share/nginx/html。-v $PWD/nginx/conf/nginx.conf:/etc/nginx/nginx.conf:将主机当前相关目录下的nginx.conf挂载到容器的 nginx.conf-v $PWD/nginx/logs:/var/log/nginx :日志的挂载-v $PWD/nginx/conf.d:/etc/nginx/conf.d:将主机当前相关目录下的conf.d挂载到容器的 conf.d-d:后台运行nginx:镜像名

查看创建的实例是否有在运行

访问的方式通过ip:端口号的方式访问

六、RabbitMQ

(1)安装

命令:docker pull rabbitmq:management
安装完可以查看一下自己的镜像

(2)使用

命令:

#方式一:默认guest 用户,密码也是 guest
docker run -d --hostname my-rabbit --name rabbit -p 15672:15672 -p 5672:5672 rabbitmq:management#方式二:设置用户名和密码
docker run -d --hostname my-rabbit --name rabbit -e RABBITMQ_DEFAULT_USER=user -e RABBITMQ_DEFAULT_PASS=password -p 15672:15672 -p 5672:5672 rabbitmq:management注意:服务器上两个端口号都要开启15672:控制台端口号,通过浏览器http://ip:15672可以访问5672:应用访问端口号,用java进行连接的时候用该端口号

这里执行了方式一

访问http://ip:15672,会要求你登录,之后就可以进到mq界面

七、Consul

(1)安装

安装的方式跟之前一样都是老套路

docker pull consul

(2)使用

先在服务器上创建一个文件夹用于挂载数据

接着就可以创建实例了

docker run -d --restart=always -p 8500:8500 -v $PWD/consul:/consul/data -e CONSUL_BIND_INTERFACE='eth0' --name=consul01 consul agent -server -bootstrap -ui -client='0.0.0.0'

八、Nacos

(1)安装

注意:当前时间是2020/10/05,经过本人的一天的尝试,nacos最新版本和1.3.2版本在后面创建镜像实例的时候不知道为什么会出错,大家可以自行试一下,1.2.1和1.3.1是可以正常创建实例的,这里建议采用1.3.1,因为1.3.1开始包括1.3.1,里面的数据库支持mysql8,并且向下兼容,1.2.1不支持mysql8
命令:

docker pull nacos/nacos-server:1.3.1或docker pull nacos/nacos-server:1.2.1

下面的图片没来得及更新,总之只要没报红就应该是安装成功的

不知道是什么原因,这个拉取耗费了我不少的时间,而且拉取后容器总是创建失败,也不知道为什么,之后换了个版本之后(1.3.1)就可以了

(2)使用

可能遇到的错误
如果是用的单台服务器,启动集群模式可能会遇到内存不足导致的镜像无法启动的情况,这个时候要么扩大内存,或者可以采用下面的方式:

-e JVM_XMS=256m \
-e JVM_XMX=256m \
-e JVM_XMN=256m \降低内存消耗

使用内置数据库
当nacos创建成功,并且访问的时候,我们在上面写配置文件等数据,当我们重启Nacos容器的时候里面的数据不会丢失就是因为里面有内置的数据库,后期也可以切换成自己的mysql数据库

首先创建数据挂载目录

初始化配置文件的挂载目录:nacos / init.d / custom.properties
日志的挂载:nacos / logs

custom.properties里面编写配置

management.endpoints.web.exposure.include=*

创建容器命令

docker run -d -p 8848:8848 -e MODE=standalone -e PREFER_HOST_MODE=hostname -v $PWD/nacos/init.d/custom.properties:/home/nacos/init.d/custom.properties -v $PWD/nacos/logs:/home/nacos/logs --restart always --name nacos01 nacos/nacos-server:1.2.1部分参数说明:
-e MODE=standalone:表示这是单机版的


创建成功后访问http://ip:8848/nacos即可

注意:如果不需要挂载数据的话,直接采用下面的命令就可以简单创建一个单机版的nacos

sudo docker run --name nacos01 -e MODE=standalone -p 8848:8848 -d nacos/nacos-server:1.3.1

使用自己的mysql数据库
使用自己的mysql数据库的话,首先需要创建对应的数据库和表,这个得去它对应的github仓库下载对应的sql文件

/*Navicat Premium Data TransferSource Server         : cainiaoSource Server Type    : MySQLSource Server Version : 80019Source Host           : 212.36.122.14Source Schema         : nacos_configTarget Server Type    : MySQLTarget Server Version : 80019File Encoding         : 65001Date: 06/10/2020 10:40:58
*/SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;-- ----------------------------
-- Table structure for config_info
-- ----------------------------
DROP TABLE IF EXISTS `config_info`;
CREATE TABLE `config_info`  (`id` bigint(0) NOT NULL AUTO_INCREMENT COMMENT 'id',`data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',`group_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'content',`md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'md5',`gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',`src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL COMMENT 'source user',`src_ip` varchar(20) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'source ip',`app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',`c_desc` varchar(256) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`c_use` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`effect` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`type` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`c_schema` text CHARACTER SET utf8 COLLATE utf8_bin NULL,PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_configinfo_datagrouptenant`(`data_id`, `group_id`, `tenant_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_info' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for config_info_aggr
-- ----------------------------
DROP TABLE IF EXISTS `config_info_aggr`;
CREATE TABLE `config_info_aggr`  (`id` bigint(0) NOT NULL AUTO_INCREMENT COMMENT 'id',`data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',`group_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',`datum_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'datum_id',`content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT '内容',`gmt_modified` datetime(0) NOT NULL COMMENT '修改时间',`app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_configinfoaggr_datagrouptenantdatum`(`data_id`, `group_id`, `tenant_id`, `datum_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '增加租户字段' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for config_info_beta
-- ----------------------------
DROP TABLE IF EXISTS `config_info_beta`;
CREATE TABLE `config_info_beta`  (`id` bigint(0) NOT NULL AUTO_INCREMENT COMMENT 'id',`data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',`group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',`app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'app_name',`content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'content',`beta_ips` varchar(1024) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'betaIps',`md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'md5',`gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',`src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL COMMENT 'source user',`src_ip` varchar(20) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'source ip',`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_configinfobeta_datagrouptenant`(`data_id`, `group_id`, `tenant_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_info_beta' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for config_info_tag
-- ----------------------------
DROP TABLE IF EXISTS `config_info_tag`;
CREATE TABLE `config_info_tag`  (`id` bigint(0) NOT NULL AUTO_INCREMENT COMMENT 'id',`data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',`group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_id',`tag_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'tag_id',`app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'app_name',`content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'content',`md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'md5',`gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',`src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL COMMENT 'source user',`src_ip` varchar(20) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'source ip',PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_configinfotag_datagrouptenanttag`(`data_id`, `group_id`, `tenant_id`, `tag_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_info_tag' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for config_tags_relation
-- ----------------------------
DROP TABLE IF EXISTS `config_tags_relation`;
CREATE TABLE `config_tags_relation`  (`id` bigint(0) NOT NULL COMMENT 'id',`tag_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'tag_name',`tag_type` varchar(64) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'tag_type',`data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'data_id',`group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'group_id',`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_id',`nid` bigint(0) NOT NULL AUTO_INCREMENT,PRIMARY KEY (`nid`) USING BTREE,UNIQUE INDEX `uk_configtagrelation_configidtag`(`id`, `tag_name`, `tag_type`) USING BTREE,INDEX `idx_tenant_id`(`tenant_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'config_tag_relation' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for group_capacity
-- ----------------------------
DROP TABLE IF EXISTS `group_capacity`;
CREATE TABLE `group_capacity`  (`id` bigint(0) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键ID',`group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'Group ID,空字符表示整个集群',`quota` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '配额,0表示使用默认值',`usage` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '使用量',`max_size` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '单个配置大小上限,单位为字节,0表示使用默认值',`max_aggr_count` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '聚合子配置最大个数,,0表示使用默认值',`max_aggr_size` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '单个聚合数据的子配置大小上限,单位为字节,0表示使用默认值',`max_history_count` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '最大变更历史数量',`gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_group_id`(`group_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '集群、各Group容量信息表' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for his_config_info
-- ----------------------------
DROP TABLE IF EXISTS `his_config_info`;
CREATE TABLE `his_config_info`  (`id` bigint(0) UNSIGNED NOT NULL,`nid` bigint(0) UNSIGNED NOT NULL AUTO_INCREMENT,`data_id` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,`group_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,`app_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'app_name',`content` longtext CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,`md5` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,`gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP,`src_user` text CHARACTER SET utf8 COLLATE utf8_bin NULL,`src_ip` varchar(20) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`op_type` char(10) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL,`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT '租户字段',PRIMARY KEY (`nid`) USING BTREE,INDEX `idx_gmt_create`(`gmt_create`) USING BTREE,INDEX `idx_gmt_modified`(`gmt_modified`) USING BTREE,INDEX `idx_did`(`data_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '多租户改造' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for permissions
-- ----------------------------
DROP TABLE IF EXISTS `permissions`;
CREATE TABLE `permissions`  (`role` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,`resource` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,`action` varchar(8) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,UNIQUE INDEX `uk_role_permission`(`role`, `resource`, `action`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for roles
-- ----------------------------
DROP TABLE IF EXISTS `roles`;
CREATE TABLE `roles`  (`username` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,`role` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,UNIQUE INDEX `idx_user_role`(`username`, `role`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for tenant_capacity
-- ----------------------------
DROP TABLE IF EXISTS `tenant_capacity`;
CREATE TABLE `tenant_capacity`  (`id` bigint(0) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键ID',`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'Tenant ID',`quota` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '配额,0表示使用默认值',`usage` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '使用量',`max_size` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '单个配置大小上限,单位为字节,0表示使用默认值',`max_aggr_count` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '聚合子配置最大个数',`max_aggr_size` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '单个聚合数据的子配置大小上限,单位为字节,0表示使用默认值',`max_history_count` int(0) UNSIGNED NOT NULL DEFAULT 0 COMMENT '最大变更历史数量',`gmt_create` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',`gmt_modified` datetime(0) NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT '修改时间',PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_tenant_id`(`tenant_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = '租户容量信息表' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for tenant_info
-- ----------------------------
DROP TABLE IF EXISTS `tenant_info`;
CREATE TABLE `tenant_info`  (`id` bigint(0) NOT NULL AUTO_INCREMENT COMMENT 'id',`kp` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'kp',`tenant_id` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_id',`tenant_name` varchar(128) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT '' COMMENT 'tenant_name',`tenant_desc` varchar(256) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'tenant_desc',`create_source` varchar(32) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT 'create_source',`gmt_create` bigint(0) NOT NULL COMMENT '创建时间',`gmt_modified` bigint(0) NOT NULL COMMENT '修改时间',PRIMARY KEY (`id`) USING BTREE,UNIQUE INDEX `uk_tenant_info_kptenantid`(`kp`, `tenant_id`) USING BTREE,INDEX `idx_tenant_id`(`tenant_id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_bin COMMENT = 'tenant_info' ROW_FORMAT = Dynamic;-- ----------------------------
-- Table structure for users
-- ----------------------------
DROP TABLE IF EXISTS `users`;
CREATE TABLE `users`  (`username` varchar(50) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,`password` varchar(500) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,`enabled` tinyint(1) NOT NULL,PRIMARY KEY (`username`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;SET FOREIGN_KEY_CHECKS = 1;

数据库名随便起,这里为nacos_config

命令:

sudo docker run -d \
-e MODE=standalone \
-e SPRING_DATASOURCE_PLATFORM=mysql \
-e MYSQL_SERVICE_HOST=212.36.122.14 \
-e MYSQL_SERVICE_PORT=3306 \
-e MYSQL_SERVICE_USER=root \
-e MYSQL_SERVICE_PASSWORD=123456 \
-e MYSQL_SERVICE_DB_NAME=nacos_config \
-e NACOS_SERVER_IP=212.36.122.14 \
-p 8848:8848 \
--name nacosMysql \
nacos/nacos-server:1.3.1

关于上面命令的参数可以参考它的官方说明:https://github.com/nacos-group/nacos-docker

name description option
MODE cluster/standalone cluster/standalone default cluster
NACOS_SERVERS nacos cluster address eg. ip1:port1 ip2:port2 ip3:port3
PREFER_HOST_MODE Whether hostname are supported hostname/ip default ip
NACOS_APPLICATION_PORT nacos server port default 8848
NACOS_SERVER_IP custom nacos server ip when network was mutil-network
SPRING_DATASOURCE_PLATFORM standalone support mysql mysql / empty default empty
MYSQL_SERVICE_HOST mysql host
MYSQL_SERVICE_PORT mysql database port default : 3306
MYSQL_SERVICE_DB_NAME mysql database name
MYSQL_SERVICE_USER username of database
MYSQL_SERVICE_PASSWORD password of database
MYSQL_SSL_ENABLE use ssl default : false
MYSQL_MASTER_SERVICE_HOST The latest version of the image removes this attribute, using MYSQL_SERVICE_HOST
MYSQL_MASTER_SERVICE_PORT The latest version of the image removes this attribute, using MYSQL_SERVICE_PORT default : 3306
MYSQL_MASTER_SERVICE_DB_NAME The latest version of the image removes this attribute, using MYSQL_SERVICE_DB_NAME
MYSQL_MASTER_SERVICE_USER The latest version of the image removes this attribute, using MYSQL_SERVICE_USER
MYSQL_MASTER_SERVICE_PASSWORD The latest version of the image removes this attribute, using MYSQL_SERVICE_PASSWORD
MYSQL_SLAVE_SERVICE_HOST The latest version of the image removes this attribute
MYSQL_SLAVE_SERVICE_PORT The latest version of the image removes this attribute default :3306
MYSQL_DATABASE_NUM It indicates the number of database default :1
JVM_XMS -Xms default :2g
JVM_XMX -Xmx default :2g
JVM_XMN -Xmn default :1g
JVM_MS -XX:MetaspaceSize default :128m
JVM_MMS -XX:MaxMetaspaceSize default :320m
NACOS_DEBUG enable remote debug y/n default :n
TOMCAT_ACCESSLOG_ENABLED server.tomcat.accesslog.enabled default :false
NACOS_AUTH_SYSTEM_TYPE The auth system to use, currently only 'nacos' is supported default :nacos
NACOS_AUTH_ENABLE If turn on auth system default :false
NACOS_AUTH_TOKEN_EXPIRE_SECONDS The token expiration in seconds default :18000
NACOS_AUTH_TOKEN The default token default :SecretKey012345678901234567890123456789012345678901234567890123456789
NACOS_AUTH_CACHE_ENABLE Turn on/off caching of auth information. By turning on this switch, the update of auth information would have a 15 seconds delay. default : false
MEMBER_LIST Set the cluster list with a configuration file or command-line argument eg:192.168.16.101:8847?raft_port=8807,192.168.16.101?raft_port=8808,192.168.16.101:8849?raft_port=8809
EMBEDDED_STORAGE Use embedded storage in cluster mode without mysql embedded default : none

nacos docker截图

九、Sentinel

(1)安装

命令:docker pull bladex/sentinel-dashboard:1.7.1
这里拉取的是1.7.1baan版本

(2)使用

命令:docker run --name sentinel01 -d -p 8858:8858 -d bladex/sentinel-dashboard:1.7.1
创建完访问页面

账号和密码都是sentinel

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