关于docker:Docker安装及Docker私有仓库部署流程

Docker装置及Docker公有仓库部署流程

docker装置

此文档是基于Centos7操作。用户为root。
零碎内核须要3.8或更高版本

//查看内核
$ uname -a  

//装置docker,此脚本会查看内核并装置
$ curl -fsSL https://get.docker.com/ | sh 

//启动服务
$ systemctl start docker 

//查看版本
$ docker --version 

部署公有仓库

镜像在私有仓库dockerhub拉取推送十分慢，而且把我的项目的镜像放在公网很不平安，在局域网内搭建公有仓库平安快捷。
docker registry server分为2个版本，第一版是python写成的，第二版是go写的。 本文档基于go版本，须要docker version 1.6以上。

//查看镜像
$ docker images

//删除镜像 -f示意强制删除
$ docker rmi -f 镜像id

//运行基于容器的registry.  registry:2镜像不存在时 会去dockerhub下面下载镜像并运行。--restart 设置为always，无论容器的退出代码是什么，Docker都会重启该容器， 设置为on-failure时 只有当容器的退出代码为非0时才会重启，如--restart=on-failure:5示意最多重启5次
$ docker run -d -p 5000:5000 --restart=always --name registry registry:2  

//默认的registry data是存储在容器docker volume中的，如果registry进行volume是会被删除的
//把data共享进去到宿主机目录/data下
$ docker run -d -p 5000:5000 --restart=always --name registry -v /data:/var/lib/registry registry:2  

//获取容器日志 与tail -f 相似
$ docker logs centos_d_container -f

//来查看以后零碎中正在运行的容器列表
$ docker ps    

//命令会列出所有的容器
$ docker ps -a  

//进行容器 start restart
$ docker stop registry (容器名或容器id)

//删除容器
$ docker rm registry (容器名或容器id)

//删除全副容器
$ docker rm `docker ps -a -q`

//当初测试下公有仓库
//下载ubuntu镜像
$ docker pull ubuntu 

//打tag 将ubuntu取名为192.168.1.182:5000/ubuntu 不写tag默认为latest
$ docker tag ubuntu 192.168.1.182:5000/ubuntu 

//推送到公有仓库
$ docker push 192.168.1.182:5000/ubuntu 

//查看
//能够间接在宿主机共享目录 查到ubuntu
$ ll /data/docker/registry/v2/repositories/

//应用API查看
$ curl https://192.168.1.182:5000/v2/_catalog 

客户端应用公有仓库

先装置好Docker 请看上文

//配置公有仓库地址
$ echo '{ "insecure-registries":["192.168.1.182:5000"] }' > /etc/docker/daemon.json

//重启失效
$ systemctl restart docker

//拉取公有仓库中的ubuntu镜像
$ docker pull 192.168.1.182:5000/ubuntu 

//也能够推送到公有仓库,比方本地有个centos 镜像
$ docker tag centos 192.168.1.182:5000/centos 
$ docker push 192.168.1.182:5000/centos 

//应用API查看
$ curl https://192.168.1.182:5000/v2/_catalog 

创立证书

如果公有仓库想放到外网拜访，这样谁都能够拜访，就不平安了，须要登录认证
running a domain registry using TLS

//须要装置openssl
$ which openssl

//创立证书
$ openssl genrsa -out server.key 2048
$ openssl req -new -key server.key -out server.csr

You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [XX]:CN
State or Province Name (full name) []:guangdong
Locality Name (eg, city) [Default City]:shenzhen
Organization Name (eg, company) [Default Company Ltd]:mobi
Organizational Unit Name (eg, section) []:soft
Common Name (eg, your name or your server's hostname) []:registrydomain.com
Email Address []:liangxxx@xxx.com
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:

$ openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt

而后把证书装置到零碎中.

$ cp server.crt /etc/pki/ca-trust/source/anchors/
$ update-ca-trust enable
$ update-ca-trust extract

而后在/etc/hosts中配置域名，重启docker过程

$ vim /etc/hosts
192.168.1.182 registrydomain.com
$ systemctl restart docker

而后应用证书启动容器。

$ mkdir certs
$ cp server.crt certs/
$ cp server.key certs/
$ docker run -d -p 5000:5000 --name registry --restart=always -v /data:/var/lib/registry -v $PWD/certs:/certs -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/server.crt -e REGISTRY_HTTP_TLS_KEY=/certs/server.key registry:2

在其余客户端中也进行装置证书和配置域名并重启docker过程后就能够应用了

用户名明码利用

//用户名：hello,明码:world 
$ sh -c "docker run --entrypoint htpasswd registry:2 -Bbn hello world > auth/htpasswd"

$ docker run -d -p 5000:5000 --restart=always --name registry   -v `pwd`/auth:/auth   -e "REGISTRY_AUTH=htpasswd"   -e "REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm"   -e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd   -v `pwd`/certs:/certs   -v /data:/var/lib/registry   -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/server.crt   -e REGISTRY_HTTP_TLS_KEY=/certs/server.key   registry:2

//登录 输出用户名明码hello:world
$ docker login registrydomain.com:5000

//登出
$ docker logout registrydomain.com:5000 

客户端用户名明码登录应用公有仓库

//server.crt 仓库生成的证书
$ cp server.crt /etc/pki/ca-trust/source/anchors/
$ update-ca-trust enable
$ update-ca-trust extract

//而后在/etc/hosts中配置域名，重启docker过程
$ vim /etc/hosts
192.168.1.182 registrydomain.com

$ systemctl restart docker

$ docker login registrydomain.com -u hello -p world

界面治理公有仓库

//登录胜利后查BASIC_AUTH值         
$ cat /root/.docker/config.json

//启动界面
$ docker run -d -p 8080:8080 --name web --link registry \
       -e REGISTRY_URL=https://192.168.1.182:5000/v2 \
       -e REGISTRY_TRUST_ANY_SSL=true \
       -e REGISTRY_READONLY=false \
       -e REGISTRY_BASIC_AUTH="aGVsbG86d29ybGQ=" \
       -e REGISTRY_NAME=localhost:5000 hyper/docker-registry-web  

浏览器拜访：http://192.168.1.182:8080/

能够界面上删除镜像，减少delete配置

//把配置文件拷贝进去
docker cp registry:/etc/docker/registry/config.yml config.yml 

$ vim config.yml
storage:
  cache:
    blobdescriptor: inmemory
  filesystem:
    rootdirectory: /var/lib/registry
  delete:  
    enabled: true
    .
    .
    .
    
//指定配置文件启动  
$ docker run -d -p 5000:5000 --restart=always --name registry -v `pwd`/config.yml:/etc/docker/registry/config.yml  -v `pwd`/auth:/auth   -e "REGISTRY_AUTH=htpasswd"   -e "REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm"   -e REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd   -v `pwd`/certs:/certs   -v /data:/var/lib/registry   -e REGISTRY_HTTP_TLS_CERTIFICATE=/certs/server.crt   -e REGISTRY_HTTP_TLS_KEY=/certs/server.key   registry:2

留神：不倡议应用删除，镜像是以层的概念，每个镜像可能依赖雷同的层，在这里删除不会物理删除

Docker Compose

装置docker-compose

$ curl -L https://github.com/docker/compose/releases/download/1.11.2/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose
$ chmod +x /usr/local/bin/docker-compose
$ docker-compose --version

//列出容器
$ docker-compose ps 

//version 1当初已不反对,倡议应用version 2
//上面应用docker-compose 以服务形式 启动公有仓库和界面治理
$ vim docker-compose.yml
version: '2'
services:
  registry:
    restart: always
    image: registry:2
    ports:
      - 5000:5000
    environment:
      REGISTRY_HTTP_TLS_CERTIFICATE: /certs/server.crt
      REGISTRY_HTTP_TLS_KEY: /certs/server.key
      REGISTRY_AUTH: htpasswd
      REGISTRY_AUTH_HTPASSWD_PATH: /auth/htpasswd
      REGISTRY_AUTH_HTPASSWD_REALM: Registry Realm
    volumes:
      - ./config.yml:/etc/docker/registry/config.yml
      - ./auth:/auth
      - ./certs:/certs
      - /data:/var/lib/registry
    networks:
      - registry-net
  web:
    restart: always 
    image: hyper/docker-registry-web
    ports:
      - 8080:8080
    environment:
      REGISTRY_URL: https://registry:5000/v2
      REGISTRY_TRUST_ANY_SSL: "true"
      REGISTRY_READONLY: "false"
      REGISTRY_BASIC_AUTH: aGVsbG86d29ybGQ=
      REGISTRY_NAME: registry:5000
    networks:
      - registry-net
networks:
  registry-net:


//后盾启动
$ docker-compose up -d