检查 Docker 容器在通过脚本移除或删除之前是否正在运行。

huangapple
go评论89阅读模式
英文:

check if docker container is running before removing or deleting it via script

问题

我有一个部署名为enhanced-app的应用程序的Bash脚本。预期在构建新镜像之前首先清理所有正在运行的容器。我的当前代码已经实现了这一点，但在容器不存在或未运行的情况下，我会收到错误消息。

我希望只在enhanced-app正在运行时运行清理命令。请问如何实现这一点？

  1. #!/bin/bash
  3. echo "Stopping App2..."
  4. docker container stop enhanced-app
  5. docker container rm enhanced-app
  7. CURPATH=$(dirname "${BASH_SOURCE[0]}")
  9. docker build . -t enhanced-app
  11. docker run -d -p 5000:5000 --name enhanced-app enhanced-app
英文:

I have a bash script that deploys an application called enhanced-app. It is expected to clean up all running containers first before building a new image. My current code does that, but in cases where the container doesn't exist or isn't running, I get an error.

I want to only run the cleanup command if enhanced-app is running. Please how can I achieve this?

  1. !/bin/bash
  3. echo "Stopping App2..."
  4. docker container stop enhanced-app
  5. docker container rm enhanced-app
  7. CURPATH=$(dirname "${BASH_SOURCE[0]}")
  9. docker build . -t enhanced-app
  11. docker run -d -p 5000:5000 --name  enhanced-app enhanced-app

答案1

得分: 0

以下是代码部分的翻译：

  1. #!/bin/bash
  3. IS_RUNNING=$(docker ps --filter name=enhanced-app --format '{{.ID}}')
  4. if [ -n "${IS_RUNNING}" ]; then
  5.     echo "enhanced-app is running. Stopping App2 and removing container..."
  6.     docker container stop enhanced-app
  7.     docker container rm enhanced-app
  8. else
  9.     IS_STOPPED=$(docker ps -a --filter name=enhanced-app --format '{{.ID}}')
  10.     if [ -n "${IS_STOPPED}" ]; then
  11.         echo "enhanced-app is stopped. Removing container..."
  12.         docker container rm enhanced-app
  13.     else
  14. fi
  16. CURPATH=$(dirname "${BASH_SOURCE[0]}")
  18. docker build . -t enhanced-app
  20. docker run -d -p 5000:5000 --name enhanced-app enhanced-app
英文:

I believe you can use the output of docker ps for that:

  1. #!/bin/bash
  3. IS_RUNNING=$(docker ps --filter name=enhanced-app --format '{{.ID}}')
  4. if [ -n "${IS_RUNNING}" ]; then
  5.     echo "enhanced-app is running. Stopping App2 and removing container..."
  6.     docker container stop enhanced-app
  7.     docker container rm enhanced-app
  8. else
  9.     IS_STOPPED=$(docker ps -a --filter name=enhanced-app --format '{{.ID}}')
  10.     if [ -n "${IS_STOPPED}" ]; then
  11.         echo "enhanced-app is stopped. Removing container..."
  12.         docker container rm enhanced-app
  13.     else
  14. fi
  16. CURPATH=$(dirname "${BASH_SOURCE[0]}")
  18. docker build . -t enhanced-app
  20. docker run -d -p 5000:5000 --name  enhanced-app enhanced-app

答案2

得分: 0

你可以使用 docker container inspect 的退出状态。

  1. if docker inspect -f '容器存在并且状态为{{.State.Status}}' enhanced-app; then
  2.   docker container stop enhanced-app
  3.   docker container rm enhanced-app
  4. fi
英文:

You can use the exit status for docker container inspect

  1. if docker inspect -f 'Container exists and is {{.State.Status}}' enhanced-app; then
  2.   docker container stop enhanced-app
  3.   docker container rm enhanced-app
  4. fi

huangapple
  • 本文由 发表于 2023年2月16日 04:49:17
  • 转载请务必保留本文链接：https://go.coder-hub.com/75465300.html
  • bash
  • docker
  • dockerfile
  • shell
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