It is possible to override ENTRYPOINT by specifying the -entrypoint parameter. Note that these rule are valid even when ENTRYPOINT and COMMAND contain multiple commands. If your Dockerfile contains ENTRYPOINT as well as COMMAND, the commands contained in ENTRYPOINT will be executed with the command contained in COMMAND as parameters If your Dockerfile contains only ENTRYPOINT, the contained command(s) will be executed when the container starts you can run an Ubuntu container with: docker run -it ubuntu bash Share. If your Dockerfile contains only COMMAND, the contained command(s) will be executed when the container starts In this post, youll learn how to install and use Docker on Mac with Homebrew. The relation between the two con be described by a few basic rules: ENTRYPOINT and COMMANDĪ Dockerfile can contain ENTRYPOINT and/or COMMAND to specify the start behaviour of a container. This post will shed some light on this topic and present an script to serve as an flexible entrypoint. There has been much confusion around the container entrypoint and parameters. Creating Advanced Entrypoints for Containers
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