sonar为容器名称

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docker inspect sonar

sonar容器信息

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docker diff sonar

sonar容器最近修改信息

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docker logs sonar
docker logs -t sonar
docker logs -tf sonar
docker logs -tf --tail 0 sonar

sonar删除容器

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docker rm sonar

清理已停止的容器

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docker rm -v $(docker ps -aq -f status=exited)

在运行中的容器内启动新进程

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docker exec -i -t container /bin/bash

把cowsay应用docker化

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  docker run -it --name cowsay --hostname cowsay debian bash
  apt-get update
  apt-get install -y cowsay fortune
  /usr/games/fortune | /usr/games/cowsay
  
  / Writing is easy; all you do is sit \
| staring at the blank sheet of paper |
| until drops of blood form on your |
| forehead. |
| |
\ -- Gene Fowler /
 -------------------------------------
 \  ^__^
 \  (oo)\_______
    (__)\      )\/\
		||---w |
		|| 	  ||
 要把它转成镜像的话，执行
 docker commit cowsay test/cowsayimage
 
 命令的返回值是这个镜像的唯一识别码（unique ID）。现在，我们创建了一个能随时使用，
 并且已安装 cowsay 的镜像：

 docker run test/cowsayimage /usr/games/cowsay "Moo"