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### 参考资料
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https://www.runoob.com/docker/docker-container-usage.html
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#### 使用官方安装脚本自动安装
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```shell
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yum install -y yum-utils
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yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
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yum install docker-ce docker-ce-cli containerd.io docker-compose-plugin -y
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```
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#### 启动$Docker$
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```shell
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systemctl start docker
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```
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#### 配置镜像源
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```shell
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mkdir -p /etc/docker
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tee /etc/docker/daemon.json <<EOF
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{
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"registry-mirrors": [
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"https://docker.m.daocloud.io",
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"https://huecker.io",
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"https://dockerhub.timeweb.cloud",
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"https://noohub.ru"
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]
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}
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EOF
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systemctl daemon-reload
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systemctl restart docker
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```
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#### 检查是否安装成功
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```shell
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docker run hello-world
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```
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#### 卸载 docker
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```shell
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yum remove docker-ce
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```
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#### 删除镜像、容器、配置文件等内容
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```
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rm -rf /var/lib/docker
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```
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#### 下载$Ununtu$容器
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```
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docker pull ubuntu
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```
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#### 进入容器
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```
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docker run -it ubuntu /bin/bash
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```
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```
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-i: 交互式操作。
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-t: 终端。
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ubuntu: ubuntu 镜像。
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/bin/bash:放在镜像名后的是命令,这里我们希望有个交互式 Shell,因此用的是 /bin/bash。
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```
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#### 查看所有容器
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```
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docker ps -a
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```
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#### 启动容器
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```
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docker start e115386be6b4
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```
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#### 后台运行容器
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```
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docker run -itd --name ubuntu-test ubuntu /bin/bash
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```
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#### 停止容器
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```
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docker stop 0651803d31f4
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```
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#### 重启容器
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```
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docker restart 0651803d31f4
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```
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#### 进入容器
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```
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docker exec -it 0651803d31f4 /bin/bash
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```
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#### 查看可用版本
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```
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docker search tomcat
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```
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#### 下载$Tomcat$镜像
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```
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docker pull tomcat
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docker pull tomcat:9.0
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docker pull tomcat:8.0
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```
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#### 查看已有$Tomcat$镜像
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```
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docker images|grep tomcat
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```
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#### 运行$Tomcat$镜像
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```
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docker run --name tomcat -p 8080:8080 -v $PWD/test:/usr/local/tomcat/webapps/test -d tomcat
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```
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命令说明:
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```
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-p 8080:8080:将主机的 8080 端口映射到容器的 8080 端口。
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-v $PWD/test:/usr/local/tomcat/webapps/test: 将主机中当前目录下的 test 挂载到容器的 /test
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```
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```
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cd /usr/local/tomcat/webapps.dist/
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mv docs/ ../webapps/
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mv examples/ ../webapps/
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mv host-manager/ ../webapps/
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mv manager/ ../webapps/
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mv ROOT/ ../webapps/
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```
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#### 通过浏览器访问
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```
|
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|
docker ps
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|
|
```
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