Docker DOC

Docker DOC

docker是提供给开发或管理人员的容器化部署项目工具

在linux上运行docker

常用命令

docker 安装

#先更新yum
yum update;
#设置docker仓库
tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/$releasever/
enabled=1
gpgcheck=1
gpgkey=https://yum.dockerproject.org/gpg
EOF
#安装docker
yum install docker
#模糊查询docker镜像
docker images|grep 镜像名

启动或关闭docker

#启动
systemctl start docker 
#或重启
systemctl restart docker
#关闭
systemctl stop docker
#设置为开机启动项
systemctl enable docker

下载镜像

docker search <image>
#或
docker pull 镜像名

查看docker镜像

docker image ls
#或
docker images

查看容器

#查看容器
docker ps
#或
docker container ls
#查看所有容器，包括停止的容器
docker ps -a

运行docker镜像

docker run --name 自定义容器名 -d -p 端口号:端口号 镜像名
#运行mysql
docker run --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.7

进入docker容器内部

docker exec -it 320c57e3f20d /bin/bash  

docker的使用

docker build -t 自定义镜像名 .
#命令末尾的点很重要，因为它表示在当前位置使用已声明的dockerfile

Dockerfile的使用

FROM java:8  #需要的环境名
COPY springboot_docker-0.0.1-SNAPSHOT.jar / #复制目录下的jar包
EXPOSE 8080
CMD java -jar springboot_docker-0.0.1-SNAPSHOT.jar #启动jar包

Docker 安装 mysql

1.查找

docker search mysql

INDEX       NAME                                                             DESCRIPTION                                     STARS     OFFICIAL   AUTOMATED
docker.io   docker.io/mysql                                                  MySQL is a widely used, open-source relati...   8028      [OK]       
docker.io   docker.io/mariadb                                                MariaDB is a community-developed fork of M...   2704      [OK]       
docker.io   docker.io/mysql/mysql-server                                     Optimized MySQL Server Docker images. Crea...   601                  [OK]
docker.io   docker.io/zabbix/zabbix-server-mysql                             Zabbix Server with MySQL database support       183                  [OK]
docker.io   docker.io/hypriot/rpi-mysql                                      RPi-compatible Docker Image with Mysql          111                  
docker.io   docker.io/zabbix/zabbix-web-nginx-mysql                          Zabbix frontend based on Nginx web-server ...   94                   [OK]
docker.io   docker.io/centurylink/mysql                                      Image containing mysql. Optimized to be li...   60                   [OK]
docker.io   docker.io/centos/mysql-57-centos7                                MySQL 5.7 SQL database server                   51                   
docker.io   docker.io/1and1internet/ubuntu-16-nginx-php-phpmyadmin-mysql-5   ubuntu-16-nginx-php-phpmyadmin-mysql-5          50                   [OK]
docker.io   docker.io/mysql/mysql-cluster                                    Experimental MySQL Cluster Docker images. ...   43                   
docker.io   docker.io/tutum/mysql                                            Base docker image to run a MySQL database ...   31                   
docker.io   docker.io/schickling/mysql-backup-s3                             Backup MySQL to S3 (supports periodic back...   26                   [OK]
docker.io   docker.io/zabbix/zabbix-web-apache-mysql                         Zabbix frontend based on Apache web-server...   26                   [OK]
docker.io   docker.io/bitnami/mysql                                          Bitnami MySQL Docker Image                      25                   [OK]
docker.io   docker.io/linuxserver/mysql                                      A Mysql container, brought to you by Linux...   20                   
docker.io   docker.io/zabbix/zabbix-proxy-mysql                              Zabbix proxy with MySQL database support        20                   [OK]
docker.io   docker.io/centos/mysql-56-centos7                                MySQL 5.6 SQL database server                   13                   
docker.io   docker.io/circleci/mysql                                         MySQL is a widely used, open-source relati...   12                   
docker.io   docker.io/mysql/mysql-router                                     MySQL Router provides transparent routing ...   9                    
docker.io   docker.io/dsteinkopf/backup-all-mysql                            backup all DBs in a mysql server                6                    [OK]
docker.io   docker.io/openshift/mysql-55-centos7                             DEPRECATED: A Centos7 based MySQL v5.5 ima...   6                    
docker.io   docker.io/jelastic/mysql                                         An image of the MySQL database server main...   1                    
docker.io   docker.io/ansibleplaybookbundle/mysql-apb                        An APB which deploys RHSCL MySQL                0                    [OK]
docker.io   docker.io/cloudposse/mysql                                       Improved `mysql` service with support for ...   0                    [OK]
docker.io   docker.io/widdpim/mysql-client                                   Dockerized MySQL Client (5.7) including Cu...   0                    [OK]

2.拉取mysql:5.6.43

docker pull mysql:5.6.43

Trying to pull repository docker.io/library/mysql ... 
5.6.43: Pulling from docker.io/library/mysql
27833a3ba0a5: Pull complete 
864c283b3c4b: Pull complete 
cea281b2278b: Pull complete 
8f856c14f5af: Pull complete 
9c4f38c23b6f: Pull complete 
688342d0934f: Pull complete 
1f90d0188066: Pull complete 
6d31565f1a00: Pull complete 
12062e921a90: Pull complete 
066ae780ca9a: Pull complete 
f6eece737bcc: Pull complete 
Digest: sha256:de2913a0ec53d98ced6f6bd607f487b7ad8fe8d2a86e2128308ebf4be2f92667
Status: Downloaded newer image for docker.io/mysql:5.6.43

3.开启Docker

systemctl start docker

4.查看镜像

docker images

REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
docker.io/mysql     5.6.43              bc788a6a2745        2 weeks ago         256 MB

5.运行mysql:5.6.43

docker run --name db001 -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root -d mysql:5.6.43

#或者

docker run -d --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root -v /var/lib/mysql:/var/lib/mysql -d mysql:5.7.25

445e43800b559e2869a3cc92f17cf87482ed5a700588f04ec6b4eb4d58981e58

6.查看

docker ps -a

CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
445e43800b55        mysql:5.6.43        "docker-entrypoint..."   16 seconds ago      Up 13 seconds       0.0.0.0:3306->3306/tcp   db001