docker CMD 中的命令替换

2022-01-14 00:00:00 python docker dockerfile cmd command-substitution

问题描述

使用:

CMD ["$(pipenv --venv)/bin/python3", "main.py", "/root/uploads"]

导致 docker run 出错:

Error response from daemon: invalid header field value "oci runtime error: container_linux.go:247: starting container process caused "exec: \"$(pipenv --venv)/bin/python3\": stat $(pipenv --venv)/bin/python3: no such file or directory"
"

有什么方法可以在 CMD 部分进行评估命令替换，例如 $(pipenv --venv)/bin/python3?

Is there any way to make evaluate command substitutions like $(pipenv --venv)/bin/python3 in the CMD section?

解决方案

改成下面

CMD ["bash", "-c", "$(pipenv --venv)/bin/python3 main.py /root/uploads"]

如果这仍然给您带来问题，请将 $ 更改为 $$

If that still gives you issue, change $ to $$

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