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Config the number of containers to keep

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By default we keep 5 containers around for rollback. The containers
don't take much space, but the images for them can.

Make the number of containers to retain configurable, either in the
config with the `retain_containers` setting on the command line
with the `--retain` option.
This commit is contained in:
Donal McBreen
2024-01-15 14:17:43 +00:00
parent bcfd0ca88a
commit 6892abb4be
6 changed files with 42 additions and 7 deletions
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9
test/cli/prune_test.rb
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@@ -20,6 +20,15 @@ class CliPruneTest < CliTestCase
assert_match /docker ps -q -a --filter label=service=app --filter status=created --filter status=exited --filter status=dead | tail -n +6 | while read container_id; do docker rm $container_id; done on 1.1.1.\d/, output
assert_match /docker container prune --force --filter label=service=healthcheck-app on 1.1.1.\d/, output
end
run_command("containers", "--retain", "10").tap do |output|
assert_match /docker ps -q -a --filter label=service=app --filter status=created --filter status=exited --filter status=dead | tail -n +11 | while read container_id; do docker rm $container_id; done on 1.1.1.\d/, output
assert_match /docker container prune --force --filter label=service=healthcheck-app on 1.1.1.\d/, output
end
assert_raises(RuntimeError, "retain must be at least 1") do
run_command("containers", "--retain", "0")
end
end
private