停止并删除docker容器（如果正在运行） [英] Stop and delete docker container if it's running

问题描述

我希望实用地停止并删除docker容器（如果正在运行）。这是用于构建脚本的。

I am looking to pragmatically stop and delete a docker container if it is running. This is for a build script.

以下面的示例为例。我将如何停止和删除docker容器 rabbitmq

Take the following example. How would I stop and delete the docker container "rabbitmq" as seen under the NAMES column in a bash script?

docker ps

CONTAINER ID        IMAGE             COMMAND                  CREATED             STATUS              PORTS                   NAMES
9909a5e2856f        rabbitmq-image   "/docker-entrypoint.s"   11 minutes ago      Up 11 minutes       0.0.0.0:5672->5672/tcp, rabbitmq
8990dd1fe503        redis-image      "/entrypoint.sh redis"   6 weeks ago         Up 4 days           0.0.0.0:32770->6379/tcp redis
etc 

以下命令将删除容器并执行我要做的事情

The following command will delete the container and does what I'm looking to do

docker stop rabbitmq && docker rm -f rabbitmq

但是，它正在将其组合成我想知道的脚本吗？我认为它看起来像这样。

However, it's combing it into a script that I would like to know? I think it would look something like this.

#!/bin/bash

if [ /*docker ps check some value */ ]; then
   docker stop rabbitmq && docker rm -f rabbitmq
fi

推荐答案

As您可能已经注意到， docker stop 以及 docker rm 退出，其状态码表示如果容器不是容器则失败存在或未运行。这样会导致您的构建失败。

As you have probably noticed, docker stop as well as docker rm exit with a status code indicating failure if the container is not existent or not running. This results in your build failing.

如果您可以处理构建日志中的错误消息，则可以执行以下小技巧来防止shell命令失败：

If you can cope with the error messages in your build log you can do this little trick to prevent the shell command of failing:

docker stop rabbitmq || true && docker rm rabbitmq || true

如果其中一个docker命令失败，则 true 会被调用，它总是以指示成功的状态码退出。

In the case that one of the docker command fails, true is called which always exits with a status code indicating success.

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