1）、镜像操作
| 操作 | 命令 | 说明 |
| 检索 | docker search 关键字 eg：docker search redis | 我们经常去docker hub上检索镜像的详细信息，如镜像的TAG。 |
| 拉取 | docker pull 镜像名:tag | :tag是可选的，tag表示标签，多为软件的版本，默认是latest |
| 列表 | docker images | 查看所有本地镜像 |
| 删除 | docker rmi image-id | 删除指定的本地镜像 |
官网可以使用https://hub.docker.com/ ，国内可以使用阿里云、或者网易云。
1、搜索镜像
[root@localhost ~]# docker search mysql
2、拉取镜像
[root@localhost ~]# docker pull mysql
拉取指定版本的镜像
[root@localhost ~]# docker pull mysql:5.5
3、查看本地所有镜像
[root@localhost ~]# docker images
4、删除镜像，根据镜像id删除
删除命令，[root@localhost ~]# docker rmi d404d78aa797，根据docker images 查询出IMAGE ID删除镜像。
2）、容器操作(操作列表懒得制作了，附着一个尚硅谷docker操作列表说明)
1、根据镜像启动容器
[root@localhost ~]# docker run --name mytomcat -d tomcat:latest
注：--name后面参数为运行容器自定义名称（亦可以不指定自定义名称），-d表示后台运行（后面参数为镜像名称），冒号后面参数为tag号，如:latest表示最新的版本(最后更新的版本)可以忽略不写，本人在这里为了更直观的说明所以加上了，一般不是最新版本必须加上tag号来运行容器。
2、查看正在运行的容器
[root@localhost ~]# docker ps
3、停止运行中的容器
[root@localhost ~]# docker stop adc48bc0a25a
[root@localhost ~]# docker ps -a #可查看所有的容器包括已退出的容器，状态为Exited表示已退出的容器
亦可使用以下命令根据CONTAINER ID将容器重新启动
[root@localhost ~]# docker start adc48bc0a25a
4、停止后的容器已经无用可以删除，使用以下命令根据CONTAINER ID操作：
[root@localhost ~]# docker rm adc48bc0a25a
再次使用docker ps -a查看所有的容器会发现已删除的tomcat容器已不存在
5、将虚拟机端口映射到容器端口，以tomcat为例启动一个做了端口映射的tomcat
[root@localhost ~]# docker run -d -p 8888:8080 tomcat #-d表示后台运行，-p表示映射端口，其中8888表示虚拟机端口，8080表示容器tomcat端口
‐d：后台运行
‐p: 将主机的端口映射到容器的一个端口 主机端口:容器内部的端口 （再次说明）
6、此时可以通过虚拟机IP加上虚拟机端口号访问tomcat,如果不能访问请自行百度linux关闭防火墙，或者开放执行端口。
7、查看容器启动日志
[root@localhost ~]# docker logs 98c3fb8fd426 #根据CONTAINER ID查看
[root@localhost ~]# docker logs 98c3fb8fd426 14-Sep-2019 15:58:31.313 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/8.5.45 14-Sep-2019 15:58:31.421 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: Aug 14 2019 22:21:25 UTC 14-Sep-2019 15:58:31.421 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number: 8.5.45.0 14-Sep-2019 15:58:31.428 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Linux 14-Sep-2019 15:58:31.428 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version: 3.10.0-957.el7.x86_64 14-Sep-2019 15:58:31.428 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture: amd64 14-Sep-2019 15:58:31.428 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home: /usr/local/openjdk-8/jre 14-Sep-2019 15:58:31.428 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version: 1.8.0_222-b10 14-Sep-2019 15:58:31.429 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor: Oracle Corporation 14-Sep-2019 15:58:31.429 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: /usr/local/tomcat 14-Sep-2019 15:58:31.429 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: /usr/local/tomcat 14-Sep-2019 15:58:31.429 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs= 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/usr/local/tomcat 14-Sep-2019 15:58:31.430 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/usr/local/tomcat 14-Sep-2019 15:58:31.431 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/usr/local/tomcat/temp 14-Sep-2019 15:58:31.431 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library [1.2.23] using APR version [1.5.2]. 14-Sep-2019 15:58:31.431 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true]. 14-Sep-2019 15:58:31.431 INFO [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true] 14-Sep-2019 15:58:31.442 INFO [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.1.0k 28 May 2019] 14-Sep-2019 15:58:32.134 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"] 14-Sep-2019 15:58:32.164 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read 14-Sep-2019 15:58:32.211 INFO [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"] 14-Sep-2019 15:58:32.235 INFO [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read 14-Sep-2019 15:58:32.238 INFO [main] org.apache.catalina.startup.Catalina.load Initialization processed in 4413 ms 14-Sep-2019 15:58:32.426 INFO [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina] 14-Sep-2019 15:58:32.427 INFO [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.45 14-Sep-2019 15:58:32.486 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/tomcat/webapps/ROOT] 14-Sep-2019 15:58:33.996 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/tomcat/webapps/ROOT] has finished in [1,503] ms 14-Sep-2019 15:58:33.997 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/tomcat/webapps/docs] 14-Sep-2019 15:58:34.115 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/tomcat/webapps/docs] has finished in [119] ms 14-Sep-2019 15:58:34.115 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/tomcat/webapps/examples] 14-Sep-2019 15:58:36.190 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/tomcat/webapps/examples] has finished in [2,075] ms 14-Sep-2019 15:58:36.190 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/tomcat/webapps/host-manager] 14-Sep-2019 15:58:36.289 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/tomcat/webapps/host-manager] has finished in [99] ms 14-Sep-2019 15:58:36.289 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory [/usr/local/tomcat/webapps/manager] 14-Sep-2019 15:58:36.343 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [/usr/local/tomcat/webapps/manager] has finished in [54] ms 14-Sep-2019 15:58:36.357 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"] 14-Sep-2019 15:58:36.388 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"] 14-Sep-2019 15:58:36.396 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 4158 ms
至此，docker镜像操作和容器操作已经通过图文并茂总结完毕，当然涉及其他更多的操作更多命令参看https://docs.docker.com/engine/reference/commandline/docker/可以参考每一个镜像的文档 ，这里就不一一的演示了，本人也是新手一边学习一边记录，有不足之处请各位大神海涵。