8000 Standardize the entrypoint across containers · Issue #75 · GSA/catalog-app · GitHub
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Standardize the entrypoint across containers #75

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adborden opened this issue Aug 3, 2018 · 3 comments
Open

Standardize the entrypoint across containers #75

adborden opened this issue Aug 3, 2018 · 3 comments
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@adborden
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adborden commented Aug 3, 2018

Conversation to address the entrypoint for our containers.
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adborden commented Aug 3, 2018

IOOS uses phusion/baseimage as their base image which provides a my_init script that acts as a real init process. This allows derivative images to drop init/configuration scripts in /etc/my_init.d for standardized init.

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adborden commented Aug 3, 2018

Most of our entrypoints accept a --wait-for-dependencies flag that triggers netcat to look for dependent web services. This is somewhat of an anti-pattern, because in most cases the app should be handling the re-connect, rather than startup script. A manual restart shouldn't be necessary to recover from a connection error.

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adborden commented Aug 3, 2018

Entrypoints should end with exec "$@" so that you can pass shell commands to the container. The Dockerfile should contain a default CMD that is appropriate so in most cases you don't need to pass a custom command.

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