部署mysql

nacos连接外部mysql sts
使用mysql-0.mysql.dmgeo-lib.svc.cluster.local进行连接，同一ns下可以省略后面的。
需要先初始化数据：创建nacos_config数据库，并source导入如下sql：
- https://github.com/alibaba/nacos/edit/master/distribution/conf/nacos-mysql.sql
将宿主机文件拷贝进pod里面
- sudo kubectl cp nacos-mysql.sql mysql-0:/var/lib/mysql/nacos_config -n dmgeo-lib
然后在mysql-0 pod里面执行source导入操作。

[root@k8s-n0 nacos]# cat ../mysql/sts/mysql-cluster.yaml
apiVersion: v1
kind: ConfigMap
metadata:name: mysql-configmapnamespace: dmgeo-liblabels:app: mysql
data:primary.cnf: |# Apply this config only on the primary.[mysqld]log-binreplica.cnf: |# Apply this config only on replicas.[mysqld]super-read-only---
# Headless service for stable DNS entries of StatefulSet members.
apiVersion: v1
kind: Service
metadata:name: mysqlnamespace: dmgeo-liblabels:app: mysql
spec:ports:- name: mysqlport: 3306clusterIP: Noneselector:app: mysql
---
# Client service for connecting to any MySQL instance for reads.
# For writes, you must instead connect to the primary: mysql-0.mysql.
apiVersion: v1
kind: Service
metadata:name: mysql-readnamespace: dmgeo-liblabels:app: mysql
spec:ports:- name: mysqlport: 3306selector:app: mysql---
apiVersion: apps/v1
kind: StatefulSet
metadata:name: mysqlnamespace: dmgeo-lib
spec:selector:matchLabels:app: mysqlserviceName: mysqlreplicas: 3 template:metadata:labels:app: mysqlspec:initContainers:- name: init-mysqlimage: 192.168.145.28:1603/lego/mysql/mysql:5.7command:- bash- "-c"- |set -ex# Generate mysql server-id from pod ordinal index.[[ `hostname` =~ -([0-9]+)$ ]] || exit 1ordinal=${BASH_REMATCH[1]}echo [mysqld] > /mnt/conf.d/server-id.cnf# Add an offset to avoid reserved server-id=0 value.echo server-id=$((100 + $ordinal)) >> /mnt/conf.d/server-id.cnf# Copy appropriate conf.d files from config-map to emptyDir.if [[ $ordinal -eq 0 ]]; thencp /mnt/config-map/primary.cnf /mnt/conf.d/elsecp /mnt/config-map/replica.cnf /mnt/conf.d/fivolumeMounts:- name: mysql-confmountPath: /mnt/conf.d- name: mysql-configmapmountPath: /mnt/config-map- name: clone-mysqlimage: 192.168.145.28:1603/lego/mysql/twoeo/gcr.io-google-samples-xtrabackup:latestcommand:- bash- "-c"- |set -ex# Skip the clone if data already exists.[[ -d /var/lib/mysql/mysql ]] && exit 0# Skip the clone on primary (ordinal index 0).[[ `hostname` =~ -([0-9]+)$ ]] || exit 1ordinal=${BASH_REMATCH[1]}[[ $ordinal -eq 0 ]] && exit 0# Clone data from previous peer.ncat --recv-only mysql-$(($ordinal-1)).mysql 3307 | xbstream -x -C /var/lib/mysql# Prepare the backup.xtrabackup --prepare --target-dir=/var/lib/mysqlvolumeMounts:- name: mysql-datamountPath: /var/lib/mysqlsubPath: mysql- name: mysql-confmountPath: /etc/mysql/conf.dcontainers:- name: mysqlimage: 192.168.145.28:1603/lego/mysql/mysql:5.7env:#- name: MYSQL_ROOT_PASSWORD#  value: 123456- name: MYSQL_ALLOW_EMPTY_PASSWORDvalue: "1"- name: MYSQL_ROOT_PASSWORDvalue: "root"- name: MYSQL_DATABASEvalue: "nacos_config"- name: MYSQL_USERvalue: "nacos"- name: MYSQL_PASSWORDvalue: "nacos"ports:- name: mysqlcontainerPort: 3306volumeMounts:- name: mysql-datamountPath: /var/lib/mysqlsubPath: mysql- name: mysql-confmountPath: /etc/mysql/conf.dresources:requests:cpu: 500mmemory: 1GilivenessProbe:exec:command: ["mysqladmin", "ping"]initialDelaySeconds: 30periodSeconds: 10timeoutSeconds: 5readinessProbe:exec:# Check we can execute queries over TCP (skip-networking is off).command: ["mysql", "-h", "127.0.0.1", "-e", "SELECT 1"]initialDelaySeconds: 5periodSeconds: 2timeoutSeconds: 1- name: xtrabackupimage: 192.168.145.28:1603/lego/mysql/twoeo/gcr.io-google-samples-xtrabackup:latestports:- name: xtrabackupcontainerPort: 3307command:- bash- "-c"- |set -excd /var/lib/mysql# Determine binlog position of cloned data, if any.if [[ -f xtrabackup_slave_info && "x$(<xtrabackup_slave_info)" != "x" ]]; then# XtraBackup already generated a partial "CHANGE MASTER TO" query# because we're cloning from an existing replica. (Need to remove the tailing semicolon!)cat xtrabackup_slave_info | sed -E 's/;$//g' > change_master_to.sql.in# Ignore xtrabackup_binlog_info in this case (it's useless).rm -f xtrabackup_slave_info xtrabackup_binlog_infoelif [[ -f xtrabackup_binlog_info ]]; then# We're cloning directly from primary. Parse binlog position.[[ `cat xtrabackup_binlog_info` =~ ^(.*?)[[:space:]]+(.*?)$ ]] || exit 1rm -f xtrabackup_binlog_info xtrabackup_slave_infoecho "CHANGE MASTER TO MASTER_LOG_FILE='${BASH_REMATCH[1]}',\MASTER_LOG_POS=${BASH_REMATCH[2]}" > change_master_to.sql.infi# Check if we need to complete a clone by starting replication.if [[ -f change_master_to.sql.in ]]; thenecho "Waiting for mysqld to be ready (accepting connections)"until mysql -h 127.0.0.1 -e "SELECT 1"; do sleep 1; doneecho "Initializing replication from clone position"mysql -h 127.0.0.1 \-e "$(<change_master_to.sql.in), \MASTER_HOST='mysql-0.mysql', \MASTER_USER='root', \MASTER_PASSWORD='', \MASTER_CONNECT_RETRY=10; \START SLAVE;" || exit 1# In case of container restart, attempt this at-most-once.mv change_master_to.sql.in change_master_to.sql.origfi# Start a server to send backups when requested by peers.exec ncat --listen --keep-open --send-only --max-conns=1 3307 -c \"xtrabackup --backup --slave-info --stream=xbstream --host=127.0.0.1 --user=root"volumeMounts:- name: mysql-datamountPath: /var/lib/mysqlsubPath: mysql- name: mysql-confmountPath: /etc/mysql/conf.dresources:requests:cpu: 100mmemory: 100Mivolumes:- name: mysql-confemptyDir: {}- name: mysql-configmapconfigMap:name: mysql-configmapvolumeClaimTemplates:- metadata:name: mysql-dataspec:accessModes: ["ReadWriteOnce"]resources:requests:storage: 10Gi

部署nacos

all-in-one.yaml

[root@k8s-n0 nacos]# cat all-in-one.yaml
apiVersion: v1
kind: ConfigMap
metadata:name: nacos-cmnamespace: dmgeo-lib
data:mysql.host: "mysql-0.mysql"mysql.db.name: "nacos_config"mysql.port: "3306"mysql.user: "root"mysql.password: ""---
apiVersion: v1
kind: Service
metadata:name: nacos-svcnamespace: dmgeo-liblabels:app: nacos-svc
spec:type: NodePortports:- port: 8848name: nacos-svctargetPort: 8848nodePort: 8848selector:app: nacos
---
apiVersion: v1
kind: Service
metadata:name: nacos-headlessnamespace: dmgeo-liblabels:app: nacos-headless
spec:type: ClusterIPclusterIP: Noneports:- port: 8848name: servertargetPort: 8848- port: 7848name: rpctargetPort: 7848clusterIP: Noneselector:app: nacos
---
apiVersion: apps/v1
kind: StatefulSet
metadata:name: nacosnamespace: dmgeo-lib
spec:serviceName: nacos-headlessreplicas: 3template:metadata:labels:app: nacosannotations:pod.alpha.kubernetes.io/initialized: "true"spec:imagePullSecrets:           # dokcer仓库密码，不需要的可以去掉- name: registry-harborterminationGracePeriodSeconds: 65affinity:podAntiAffinity:requiredDuringSchedulingIgnoredDuringExecution:- labelSelector:matchExpressions:- key: "app"operator: Invalues:- nacostopologyKey: "kubernetes.io/hostname"containers:- name: k8snacosimagePullPolicy: Alwaysimage: 192.168.145.28:1603/lego/nacos/nacos-server:latestresources:requests:memory: "2Gi"cpu: "500m"ports:- containerPort: 8848name: client- containerPort: 7848name: rpcenv:- name: NACOS_REPLICASvalue: "3"- name: MYSQL_SERVICE_HOSTvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.host- name: MYSQL_SERVICE_DB_NAMEvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.db.name- name: MYSQL_SERVICE_PORTvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.port- name: MYSQL_SERVICE_USERvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.user- name: MYSQL_SERVICE_PASSWORDvalueFrom:configMapKeyRef:name: nacos-cmkey: mysql.password- name: MODEvalue: "cluster"- name: NACOS_SERVER_PORTvalue: "8848"- name: PREFER_HOST_MODEvalue: "hostname"- name: NACOS_SERVERSvalue: "nacos-0.nacos-headless.dmgeo-lib.svc.cluster.local:8848 nacos-1.nacos-headless.dmgeo-lib.svc.cluster.local:8848 nacos-2.nacos-headless.dmgeo-lib.svc.cluster.local:8848"selector:matchLabels:app: nacos

k8s部署nacos集群：3个pod、连接外部mysql读写分离集群相关推荐

【华为云CCE】 k8s部署nacos集群
业务场景: 华为CCE,根据自己的nacos镜像,部署nacos集群.由于公司使用的是华为云CCE内网环境,不能通过外网下载镜像,只能根据公司自己的镜像进行部署.看了网上华为云CCE部署nacos集群 ...
Maxscale Keepalived MySQL实现高可用读写分离集群
图片是模拟两个从节点down是否正常提供服务访问http://ip:8989端口,登录名admin,密码mariadb 环境说明: IP地址数据库服务读写分离代理服务负载均衡服务虚拟IP 1 ...
MySQL8读写分离集群
文章目录前言 MySQL读写分离原理搭建MySQL读写分离集群 MySQL8.0之前 MySQL8.0之后后记前言上一期介绍并实现了MySQL的主从复制,由于主从复制架构仅仅能解决数据冗余备 ...
K8S 部署rabbitmq集群
K8S 部署rabbitmq集群版本介绍名称版本 k8s 1.18 rabbitmq 3.8 命名空间:rabbitmq 我这里已经建立 configmap 配置文件 [root@k8s-mas ...
docker 部署rabbitmq，k8s部署rabbitmq集群，跟踪和监控rabbitmq
全栈工程师开发手册 (作者:栾鹏) 架构系列文章 rabbit原理和架构可以参考https://blog.csdn.net/luanpeng825485697/article/details/8208 ...
Maxscale读写分离集群过渡PXC集群
一.实验环境第一次写博客,欢迎大家交流指正!!! 不喜勿喷!!! 操作系统 : Centos7.5虚拟机数据库软件 : mysql-5.7.17 主机名 ip地址角色 web33 192.168 ...
Windows 2012 always on 读写分离集群搭建配置
Windows 2012 always on 读写分离集群搭建配置. Always on简介 AlwaysOn 可用性组 (SQL Server) AlwaysOn 可用性组功能是一个提供替代数据库镜 ...
金仓数据库KingbaseES主备和读写分离集群使用手册（日常运维管理）
对应10小节作的整改,包括但不限于一键启动的检查项目.对属于一键启动的检查项作个说明即可,比如本检查属于一键启动默认检查项. 目录 7.1. 集群启停 ¶ 7.1.1. 一键启停方式 ¶ 7.1.2 ...
达梦-主备与读写分离集群
DM8-主备与读写分离集群文章目录 DM8-主备与读写分离集群 1. 基本概念 1.1 DM集群 1.2 DM归档类型 2. 数据守护集群 2.1 概念 2.2 数据守护集群架构及原理 2.3 守护 ...

k8s部署nacos集群：3个pod、连接外部mysql读写分离集群

部署mysql

部署nacos

k8s部署nacos集群：3个pod、连接外部mysql读写分离集群相关推荐

最新文章

热门文章