您可以将标志传递给docker运行的命令吗？ [英] Can you pass flags to the command that docker runs?

问题描述

run 命令的文档遵循以下语法：

The documentation for the run command follows the following syntax:

docker run [OPTIONS] IMAGE[:TAG|@DIGEST] [COMMAND] [ARG...]

但是我有时发现我想将标志传递给 [COMMAND] 。

however I've found at times that I want to pass a flag to [COMMAND].

例如，我一直在使用此图片，其中 [COMMAND ] （在 Dockerfile 中指定）是：

For example, I've been working with this image, where the [COMMAND] as specified in the Dockerfile is:

CMD ["/bin/bash", "-c", "/opt/solr/bin/solr -f"]

有没有办法将标志附加到 / opt / solr / bin / solr -f 使其格式为 / opt / solr / bin / solr -f [-MY FLAGS] ？

Is there any way to tack on flags to "/opt/solr/bin/solr -f" so that it's in the form "/opt/solr/bin/solr -f [-MY FLAGS]"?

我需要编辑DockerFile还是为此内置一些功能？

Do I need to edit the DockerFile or is there some built in functionality for this?

推荐答案

的 CMD 指令如果在 docker run 命令中未指定任何命令，则Dockerfile 是容器启动时将运行的命令。

The CMD directive of a Dockerfile is the command that would be run when the container starts if no command was specified in the docker run command.

CMD的主要目的是为执行中的容器提供默认值。

The main purpose of a CMD is to provide defaults for an executing container.

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在您的情况下，只需按以下方式使用 docker run 命令覆盖在中指定的默认命令 Dockerfile ：

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In your case, just use the docker run command as follow to override the default command specified in the Dockerfile:

docker run makuk66/docker-solr /bin/bash -c "/opt/solr/bin/solr -f [your flags]"

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