三、docker镜像创建

（一）生产环境

[root@hp-uas01~]# dmidecode|grep "System Information" -A9|egrep "Manufacturer|Product"

Manufacturer: HP

Product Name: ProLiant DL380 Gen9

[root@hp-hp-uas01 ~]# uname -a

Linux linux-node2 3.10.0-693.21.1.el7.x86_64 #1 SMP Wed Mar 7 19:03:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

[root@hp-uas01 ~]# cat /etc/redhat-release

CentOS Linux release 7.4.1708 (Core)

[root@hp-uas01~]# docker --version

Docker version 18.03.1-ce, build 9ee9f40

（二）构建镜像

1、基础镜像：

$docker pull centos

$docker run -dit --name nginx_v1 centos /bin/bash

$ docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

72ff0b0eee01 centos "/bin/bash" 3 minutes ago Up 3 minutes nginx_v1

e99ceea5c674 hello-world "/hello" 2 days ago Exited (0) 2 days ago cranky_euler

$ docker image list

REPOSITORY TAG IMAGE ID CREATED SIZE

nmsadm/nginx_v1 v2 7adc249e5fce 9 minutes ago 352MB##安装nginx

hello-world latest e38bc07ac18e 4 weeks ago 1.85kB

centos latest e934aafc2206 4 weeks ago 199MB

[root@linux-node2 ~]# docker start 4137a5511559

4137a5511559

[root@linux-node2 ~]# docker attach 4137a5511559

[root@4137a5511559 /]# vi /etc/nginx/nginx.conf

修改/etc/nginx/nginx.conf添加daemon off;(前台执行)

[root@linux-node2 ~]# docker commit -m "nginx_front" 4137a5511559 nmsadm/nginx_front:v1 #创建镜像

sha256:a90b84340157fcc7b78ac6816e3e80df73ba1f7c768ddab56ff6d84cd8e28d81

$dcoker image list

-bash: dcoker: command not found

$ docker image list

REPOSITORY TAG IMAGE ID CREATED SIZE

nmsadm/nginx_front v1 a90b84340157 11 seconds ago 352MB

nmsadm/nginx_v1 v2 7adc249e5fce 11 minutes ago 352MB

hello-world latest e38bc07ac18e 4 weeks ago 1.85kB

centos latest e934aafc2206 4 weeks ago 199MB

$docker run -d --name "nginx_front" nmsadm/nginx_front:v1 nginx

d5fe125cc0f2e50ef097fa0e6cbab9c44dd670c1632142e5b5428cb17a76147a

$docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

d5fe125cc0f2 nmsadm/nginx_front:v1 "nginx" 8 seconds ago Up 8 seconds 80/tcp nginx_front

4137a5511559 nmsadm/nginx_v1:v2 "/bin/bash" 5 minutes ago Exited (0) 2 minutes ago agitated_montalcini

05dccdf6133c centos "/bin/bash" 22 minutes ago Exited (0) 14 minutes ago nginx_v1

e99ceea5c674 hello-world "/hello" 2 days ago Exited (0) 2 days ago cranky_euler

(三)dockerfile构建镜像

四要素1、基础镜像信息2、维护者信息3、镜像操作指令4、容器启动时指令；

Dockerfile语法结构	描述
FROM	基础镜像（centos7）
MAINTAINER	名称邮箱
RUN	安装需要的包
ADD	添加文件ADD . /app拷贝当前目录内容到app目录
WORKDIR	设置工作目录（可指定应用的目录）
VOLUME	目录挂载
EXPOSE	对外开放的端口（比如WEB服务需要开放80端口）
RUN	docker中运行的应用
ENV	NAME World定义环镜变量

$ more Dockerfile

#This is first dockerfile

#Version v1

#Author:anline

#Base iamge

FROM centos

MAINTAINER test test@sina.com

RUN rpm -ivh https://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm

RUN yum install -y nginx

ADD index.html /usr/share/nginx/html/indel.html

RUN echo "daemon off;" >> /etc/nginx/nginx.conf

EXPOSE 80

CMD ["nginx"]

$docker build -t nginx_dockerfile:v1 /dockfile

Sending build context to Docker daemon 3.072kB

Step 1/9 : FROM centos

---> e934aafc2206

Step 2/9 : MAINTAINER anline anline5104@sina.com

---> Running in 7e6ea367066e

Removing intermediate container 7e6ea367066e

---> 58b92b9d405c

---> Running in f2507113912a

warning: /var/tmp/rpm-tmp.EBnqJJ: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY

Retrieving https://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm

Preparing... ########################################

Updating / installing...

epel-release-7-11 ########################################

Removing intermediate container f2507113912a

---> b9fe6bf3b36a

Step 4/9 : RUN yum install -y nginx

---> Running in 64d809002500

Loaded plugins: fastestmirror, ovl

Determining fastest mirrors

* base: mirrors.shu.edu.cn

* epel: mirrors.tongji.edu.cn

* extras: mirrors.njupt.edu.cn

* updates: mirrors.shu.edu.cn

Resolving Dependencies

--> Running transaction check

---> Package nginx.x86_64 1:1.12.2-2.el7 will be installed

........

perl-Scalar-List-Utils x86_64 1.27-248.el7 base 36 k

$ docker image list

REPOSITORY TAG IMAGE ID CREATED SIZE

nginx_dockerfile v1 a917bf2cb33f 12 seconds ago 371MB

nmsadm/nginx_front v1 a90b84340157 About an hour ago 352MB

nmsadm/nginx_v1 v2 7adc249e5fce About an hour ago 352MB

hello-world latest e38bc07ac18e 4 weeks ago 1.85kB

centos latest e934aafc2206 4 weeks ago 199MB

$docker run -d -p 83:80 nmsadm/nginx_dockerfile:v1

e0a5e59f47f7c15ed8e4be247d5962d6985f65142a73c1b8b00184b4796dbb74

$docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

e0a5e59f47f7 nmsadm/nginx_dockerfile:v1 "nginx" 3 minutes ago Exited (1) 1 second ago keen_tereshkova

d5fe125cc0f2 nmsadm/nginx_front:v1 "nginx" 19 hours ago Exited (0) 18 hours ago nginx_front

4137a5511559 nmsadm/nginx_v1:v2 "/bin/bash" 19 hours ago Exited (0) 19 hours ago agitated_montalcini

05dccdf6133c centos "/bin/bash" 19 hours ago Exited (0) 19 hours ago nginx_v1

e99ceea5c674 hello-world "/hello" 3 days ago Exited (0) 3 days ago cranky_euler

使用新构建的镜像启动容器，但是启动就退出。检查一下容器的报错的LOG

$docker logs e0a5e59f47f7

nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol)

需要修改nginx的配置文件：

将 listen 80 default_server;

listen [::]:80 default_server;

listen 80;

# listen [::]:80 default_server;

修改Dockerfile内容：

#This is first dockerfile

#Version v1

#Author:anline

#Base iamge

FROM centos

MAINTAINER test test@sina.com

RUN rpm -ivh https://mirrors.aliyun.com/epel/epel-release-latest-7.noarch.rpm

RUN yum install -y nginx

ADD index.html /usr/share/nginx/html/indel.html

RUN sed -i '39,40d' /etc/nginx/nginx.conf

RUN sed -i '38 alisten 80;' /etc/nginx/nginx.conf

RUN echo "daemon off;" >> /etc/nginx/nginx.conf

EXPOSE 80

CMD ["nginx"]

$docker run -d -p 808:80 nmsadm/nginx_dockerfile:v1

2f9ab83be035dd384350d22d1e46347ac35afa94444f0ad38e1f9e938d1875a0

验证：

$docker ps -a

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES

2f9ab83be035 nmsadm/nginx_dockerfile:v1 "nginx" 3 seconds ago Up 2 seconds 0.0.0.0:808->80/tcp happy_bartik

49b1005174b2 nmsadm/nginx_dockerfile:v1 "nginx" 2 minutes ago Exited (0) 13 seconds ago confident_montalcini

d5fe125cc0f2 nmsadm/nginx_front:v1 "nginx" 20 hours ago Exited (0) About an hour ago nginx_front

4137a5511559 nmsadm/nginx_v1:v2 "/bin/bash" 20 hours ago Exited (0) 6 minutes ago agitated_montalcini

05dccdf6133c centos "/bin/bash" 21 hours ago Exited (0) 20 hours ago nginx_v1

e99ceea5c674 hello-world "/hello" 3 days ago Exited (0) 3 days ago cranky_euler

转载于:https://www.cnblogs.com/icerain0/p/9030377.html

三、docker镜像创建相关推荐

Docker笔记三 Docker镜像制作
Docker笔记三 Docker镜像制作 1.Docker镜像制作方法: docker commit 保存当前container的状态到镜像,生成p_w_picpath. docker build 利 ...
docker镜像创建与优化
1 . 创建镜像有两种方法构建镜像: docker commit :将运行的容器保存成镜像 Dockerfile:自动构建使用docker commit 创建镜像分为三步: 运行容器修改容器将 ...
Docker学习(三)-----Docker镜像常用命令
六.Docker镜像镜像是Docker的三大组件之一 Docker运行容器前需要本地存在对应的镜像,如果本地不存,Docker会从镜像仓库下载 6.1Docker获取镜像 6.1.1查找镜像我们可 ...
Docker镜像创建，拉取以及推送
本篇文章主要讲述如何创建镜像,拉取镜像以及推送镜像到自己的仓库中. 创建镜像创建镜像有两种方式: docker commit 构建容器 docker build 使用Dockerfile文件来构建 ...
docker镜像创建及使用
目录 1.创建镜像所在文件夹和Dockerfile文件 2.创建镜像 3.根据创建好的镜像中创建容器 4.docker cp :用于容器与主机之间的数据拷贝创建镜像[使用Dockerfile] 1. ...
Docker学习(三)-----Docker镜像和仓库了解以及加速
镜像(Image)是构建容器的基础,镜像是一种分层结构的文件系统.我们可以从仓库(Repository)中下载镜像,而仓库又保存在Registry中,Docker Hub是Docker官方提供的Reg ...
Docker镜像创建的三种方式详解——dockerfile制作apache镜像
基于已有的镜像容器进行创建 [root@localhost opt]# docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAM ...
github上docker镜像创建容器
docker介绍三个概念 1.镜像:类似于模版,在没有添加实例化前不能使用. 2.容器:镜像实例化. 3.docker:放容器的一个载体. 总结:docker就像一艘船,上面放的容器就是集装箱(co ...
docker镜像创建redis5.0.3容器集群
拉取redis5.0.3镜像 # docker pull daocloud.io/library/redis:5.0.3 [root@localhost ~]# docker pull daoclou ...

三、docker镜像创建

三、docker镜像创建相关推荐

最新文章

热门文章