# 迁移与备份 ### 容器保存为镜像 我们可以通过以下命令将容器保存为镜像 ``` docker commit mynginx mynginx_i ``` ### 镜像备份 我们可以通过以下命令将镜像保存为tar 文件 ``` docker save -o mynginx.tar mynginx_i ``` ## 镜像恢复与迁移 首先我们先删除掉mynginx\_img镜像 然后执行此命令进行恢复 ``` docker load -i mynginx.tar ``` -i 输入的文件 执行后再次查看镜像，可以看到镜像已经恢复 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docker.shujuwajue.com/docker-de-shi-yong/qian-yi-yu-bei-fen.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.