提供了一种方便高效的方法来打包、分发和管理应用程序。但是,有时您可能需要告别Docker。从 Linux 系统中卸载 Docker 可能是一个复杂的过程,但本综合指南将引导您逐步完成它。最后,您将拥有一个干净的系统,为开发之旅中的下一步做好准备。
在 Linux 上卸载 Docker
现在,让我们进入从Linux系统中删除Docker的细节。
A. 使用程序包管理器卸载 Docker
Debian/Ubuntu
<span class="com"># Uninstall Docker</span><span class="pln"> sudo apt</span><span class="pun">-</span><span class="kwd">get</span> <span class="kwd">remove</span><span class="pln"> docker</span><span class="pun">-</span><span class="pln">ce docker</span><span class="pun">-</span><span class="pln">ce</span><span class="pun">-</span><span class="pln">cli containerd</span><span class="pun">.</span><span class="pln">io </span><span class="com"># Purge configuration files</span><span class="pln"> sudo apt</span><span class="pun">-</span><span class="kwd">get</span><span class="pln"> purge docker</span><span class="pun">-</span><span class="pln">ce docker</span><span class="pun">-</span><span class="pln">ce</span><span class="pun">-</span><span class="pln">cli containerd</span><span class="pun">.</span><span class="pln">io </span><span class="com"># Delete images, containers, and volumes (Caution!)</span><span class="pln"> sudo rm </span><span class="pun">-</span><span class="pln">rf </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">lib</span><span class="pun">/</span><span class="pln">docker</span>
CentOS/RHEL
<span class="com"># Uninstall Docker</span><span class="pln"> sudo yum </span><span class="kwd">remove</span><span class="pln"> docker</span><span class="pun">-</span><span class="pln">ce docker</span><span class="pun">-</span><span class="pln">ce</span><span class="pun">-</span><span class="pln">cli containerd</span><span class="pun">.</span><span class="pln">io </span><span class="com"># Delete images, containers, and volumes (Caution!)</span><span class="pln"> sudo rm </span><span class="pun">-</span><span class="pln">rf </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">lib</span><span class="pun">/</span><span class="pln">docker</span>
B. 手动卸载
如果无法使用包管理器删除 Docker,或者更喜欢手动方法,请按照以下步骤操作:
- 停止 Docker 服务:
<span class="pln">sudo systemctl stop docker</span>
- 删除 Docker 软件包:
<span class="pln">sudo yum list installed </span><span class="pun">|</span><span class="pln"> grep docker </span><span class="com"># CentOS/RHEL</span><span class="pln"> sudo dpkg </span><span class="pun">-</span><span class="pln">l </span><span class="pun">|</span><span class="pln"> grep docker </span><span class="com"># Debian/Ubuntu</span> <span class="com"># Use the appropriate command to remove Docker packages</span>
- 删除 Docker 目录和文件:
<span class="pln">sudo rm </span><span class="pun">-</span><span class="pln">rf </span><span class="pun">/</span><span class="pln">etc</span><span class="pun">/</span><span class="pln">docker </span><span class="pun">/</span><span class="kwd">var</span><span class="pun">/</span><span class="pln">lib</span><span class="pun">/</span><span class="pln">docker</span>
- 清理与 Docker 相关的依赖项:
<span class="pln">sudo apt autoremove </span><span class="com"># Debian/Ubuntu</span><span class="pln"> sudo yum autoremove </span><span class="com"># CentOS/RHEL</span>
C. 删除 Docker 撰写
如果您还安装了 Docker Compose,请将其删除:
<span class="pln">sudo rm </span><span class="pun">/</span><span class="pln">usr</span><span class="pun">/</span><span class="kwd">local</span><span class="pun">/</span><span class="pln">bin</span><span class="pun">/</span><span class="pln">docker</span><span class="pun">-</span><span class="pln">compose</span>
D. 禁用和删除 Docker 相关服务
根据您的 Linux 发行版,您可能需要禁用和删除与 Docker 相关的服务:
<span class="com"># Debian/Ubuntu</span><span class="pln"> sudo systemctl disable docker sudo systemctl disable containerd </span><span class="com"># CentOS/RHEL</span><span class="pln"> sudo systemctl disable docker sudo systemctl disable containerd</span>
验证卸载
卸载 Docker 后,必须验证系统上没有剩余的 Docker 工件或进程。
A. 检查剩余的 Docker 工件:
<span class="pln">docker </span><span class="pun">--</span><span class="pln">version </span><span class="com"># Ensure Docker commands are not recognized</span>
B. 确保停止 Docker 进程:
<span class="pln">ps aux </span><span class="pun">|</span><span class="pln"> grep docker </span><span class="com"># Ensure no Docker-related processes are running</span>
Reclaiming Disk Space
回收磁盘空间
卸载 Docker 是一回事,但重新获得宝贵的磁盘空间是另一回事。以下是清理系统的方法:
A. 识别和删除未使用的 Docker 镜像和容器:
<span class="pln">docker image prune </span><span class="pun">-</span><span class="pln">a docker container prune</span>
B. 清理 Docker 卷和网络:
<span class="pln">docker volume prune docker network prune</span>
卸载后最佳实践
卸载 Docker 并清理系统后,请考虑以下最佳实践:
A. 替代容器化解决方案的注意事项:
- 探索 Podman、LXC 或 Kubernetes 等替代方案,如果您的容器化需求持续存在。
B. 记录卸载过程以供将来参考:
- 创建详细的指南或文档,概述您遵循的步骤。如果您需要再次安装 Docker 或帮助其他人完成此过程,这将是非常宝贵的。
排查常见问题
有时,事情并没有按计划进行。以下是您在卸载过程中可能遇到的一些常见问题:
A. 卸载过程中的处理问题:
- 如果遇到错误,请检查错误消息以获取有关如何解决这些错误的线索。常见问题包括依赖项未正确删除或服务未停止。
B. 处理剩余的 Docker 组件:
- 如果在卸载后仍然看到与 Docker 相关的工件,请重新访问上述步骤,并确保仔细执行每个步骤。
C.从意外数据丢失中恢复:
- 如果您不小心删除了要保留的容器或映像,请参阅备份以进行恢复。
总之,Docker一直是软件开发和部署领域的游戏规则改变者,但有时您可能需要与它分道扬镳。从 Linux 系统中卸载 Docker 是一个细致的过程,但通过本指南,您拥有正确完成此操作所需的所有步骤和知识。请记住备份数据,仔细按照步骤操作,然后彻底清理系统。无论您是切换到替代的容器化解决方案还是只是整理,本指南都能满足您的需求。