Dockerfile supervisord找不到路径

Question

由于某种原因，supervisord无法在执行docker run时启动...如果我注销为supervisord存储配置的路径，我可以清楚地看到该文件存在。

下面是我的Dockerfile中当前未被注释掉的部分。

FROM ubuntu:16.04
MAINTAINER Kevin Gilbert

# Update Packages
RUN apt-get -y update

# Install basics
RUN apt-get -y install curl wget make gcc build-essential

# Setup Supervisor
RUN apt-get -y install supervisor
RUN mkdir -p /var/log/supervisor

COPY supervisord.conf /etc/supervisor/conf.d/supervisord.conf

CMD ["/usr/bin/supervisord", "-c /etc/supervisor/conf.d/supervisord.conf"]

这是我在终端运行后得到的错误。

remote-testing:analytics-portal kgilbert$ docker run kmgilbert/portal
Error: could not find config file  /etc/supervisor/conf.d/supervisord.conf
For help, use /usr/bin/supervisord -h

Answer 1

尝试使用的exec形式

CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/conf.d/supervisord.conf"]

或者使用shell形式

CMD /usr/bin/supervisord -c /etc/supervisor/conf.d/supervisord.conf

根据基础映像使用的操作系统，您可能甚至不必在命令行(see this example或the official documentation)中指定supervisord.conf

Answer 2

我在Alpine Linux3.9上也遇到过这种情况，但最终成功地运行了

CMD ["supervisord", "-c", "<path_to_conf_file>"]