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Prune healthcheck containers

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If a deployment is interrupted it could leave stale healthcheck
containers around that prevent dependent images from being pruned.
This commit is contained in:
Donal McBreen
2023-08-23 12:03:45 +01:00
parent 9d35793287
commit 718776eb72
7 changed files with 33 additions and 13 deletions
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12
lib/kamal/commands/prune.rb
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@@ -13,13 +13,17 @@ class Kamal::Commands::Prune < Kamal::Commands::Base
"while read image tag; do docker rmi $tag; done"
end
def containers(keep_last: 5)
def app_containers(keep_last: 5)
pipe \
docker(:ps, "-q", "-a", *service_filter, *stopped_containers_filters),
"tail -n +#{keep_last + 1}",
"while read container_id; do docker rm $container_id; done"
end
def healthcheck_containers
docker :container, :prune, "--force", *healthcheck_service_filter
end
private
def stopped_containers_filters
[ "created", "exited", "dead" ].flat_map { |status| ["--filter", "status=#{status}"] }
@@ -35,4 +39,8 @@ class Kamal::Commands::Prune < Kamal::Commands::Base
def service_filter
[ "--filter", "label=service=#{config.service}" ]
end
end
def healthcheck_service_filter
[ "--filter", "label=service=#{config.healthcheck_service}" ]
end
end