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https://issues.apache.org/jira/browse/RANGER-5492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Madhan Neethiraj updated RANGER-5492:
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Summary: Docker setup update to keep containers immutable (was: Docker
setup update to keep the container immutable)
> Docker setup update to keep containers immutable
> ------------------------------------------------
>
> Key: RANGER-5492
> URL: https://issues.apache.org/jira/browse/RANGER-5492
> Project: Ranger
> Issue Type: Improvement
> Components: docker
> Reporter: Madhan Neethiraj
> Priority: Major
>
> Currently, docker files under {{dev-support/ranger-docker}} run {{setup.sh}}
> on the first time a container starts up. {{setup.sh}} creates application
> configuration files (like {{{}ranger-admin-site.xml{}}},
> {{{}ranger-usersync-site.xml{}}}) in the container based on values in
> {{{}install.properties{}}}, which is mounted into the container. For some
> applications, the script also runs database initialization and upgrade. This
> is not K8S compliant, as these steps will be executed in every new container
> and the container state is mutated.
> To be compliant with K8S guidelines that a container be immutable, Ranger
> docker images should be updated to replace use of {{setup.sh}} inside the
> container with creating configuration files outside the container, and mount
> the configuration files in the container. Also, consider handling database
> initialization and upgrade using Kubernates Jobs.
>
> CC: [~abhi]
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