Cleanup docker images #5768
Cleanup docker images #5768
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…erroring early due to an attempt to inspect an image that had already been removed
- modified tests to cleanup now that RemoveContainer isn't in StartTask - fix some broken tests by removing docker images/containers before test
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| } else { | ||
| h.logger.Debug("not removing container due to config") | ||
| } | ||
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Container removed was moved from here, in run, to DestroyTask:
https://github.com/hashicorp/nomad/pull/5768/files#diff-2b17483fc1838ce536b7f8e6f6f6ea8eR1122
…ners removed out of band
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drivers/docker/driver.go
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| } | ||
| switch err.(type) { | ||
| case *docker.NoSuchContainer: | ||
| h.logger.Error("failed to inspect container state, will proceed with DestroyTask", |
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This feels a bit odd to be Error log considering that we handle it quite well. I would downgrade it to info or debug with it indicating "container was deleted out-of-band, will proceed with DestroyTask"`.
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I'm going to lock this pull request because it has been closed for 120 days ⏳. This helps our maintainers find and focus on the active contributions. |
Resolves #5659
Before 0.9, the docker driver would remove the docker container in
run()after it had finished. After the refactor as a task driver plugin, this code was left inStartTask(). However, this was causingDestroyTask()to error early when it attempted to inspect the (deleted) container. This early exit was preventing image cleanup from happening.This change moves the container remove over to
DestroyTask(), so that it can be inspected and stopped. Tests are added for the image GC.Update: Also, the process has been hardened to handle cases where the docker image has been removed out-of-band.