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https://issues.apache.org/jira/browse/CASSANDRA-21403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Semb Wever reassigned CASSANDRA-21403:
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Assignee: Michael Semb Wever
> Preload maven dependencies and gradle binary in docker build/test images
> ------------------------------------------------------------------------
>
> Key: CASSANDRA-21403
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21403
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Build, CI
> Reporter: Michael Semb Wever
> Assignee: Michael Semb Wever
> Priority: Normal
>
> Maven dependencies (and the gradle binary for accord's gradle wrapper) were
> being downloaded on every CI pipeline run. This lead to hitting rate limits
> and runs failing.
> The docker containers mount the host's ~/.m2/repository to try to reduce this
> download cost, but CI can't do this for two reasons:
> 1. pre-ci.cassandra.a.o spins up new agents each build
> 2. ci-cassandra.a.o mounts a tmp directory, as it runs multiple executors on
> the same agent hosts, and multiple containers cannot use the same repository
> directory (or files become corrupt).
> The solution is to bake in the maven dependencies and gradle binary into the
> images, and rsync them into place when the container runs.
> The preloaded set of dependencies will drift over time as dependencies are
> added or versions bumped, but this is expected to be a minor issue remedied
> in time when the image is built and deployed again. (It can be freely rebuilt
> at any time too.)
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