Cap previews at five and reap them nightly #307

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opened 2026-10-09 09:19:54 +00:00 by root · 6 comments

root commented

2026-10-09 09:19:54 +00:00

(Migrated from gitlab.core-project.space)

Imported from GitHub amaurycoudr/chess-project#307, opened by @amaurycoudr on 2026-10-09 09:19 UTC.
Closed on GitHub on 2026-10-09 12:20 UTC as completed.

Parent

#303

What to build

Previews can never crowd out production: at most five run at once, and nothing leaks when a close event is missed.

Before deploying a new preview while five run, the preview workflow removes the one deployed longest ago, read from the deploy-time label. A redeploy of an existing preview does not count as a sixth. A nightly scheduled workflow lists the chess-pr-* stacks, removes those whose PR is no longer open, then prunes images no container uses.

Seam: Workflow post-conditions

Acceptance criteria

Deploying a sixth preview removes the one deployed longest ago, and the run ends by checking at most five chess-pr-* stacks remain
Redeploying one of five existing previews removes none
The nightly run removes a stack whose PR is closed and keeps those whose PR is open, then checks every remaining stack has an open PR
The nightly run prunes unused images and never touches the running production image or the proxy
The nightly run can also be started by hand

> _Imported from GitHub [amaurycoudr/chess-project#307](https://github.com/amaurycoudr/chess-project/issues/307), opened by [@amaurycoudr](https://github.com/amaurycoudr) on 2026-10-09 09:19 UTC._ > _Closed on GitHub on 2026-10-09 12:20 UTC as completed._  --- ## Parent #303 ## What to build Previews can never crowd out production: at most five run at once, and nothing leaks when a close event is missed. Before deploying a new preview while five run, the preview workflow removes the one deployed longest ago, read from the deploy-time label. A redeploy of an existing preview does not count as a sixth. A nightly scheduled workflow lists the `chess-pr-*` stacks, removes those whose PR is no longer open, then prunes images no container uses. Seam: Workflow post-conditions ## Acceptance criteria - [ ] Deploying a sixth preview removes the one deployed longest ago, and the run ends by checking at most five `chess-pr-*` stacks remain - [ ] Redeploying one of five existing previews removes none - [ ] The nightly run removes a stack whose PR is closed and keeps those whose PR is open, then checks every remaining stack has an open PR - [ ] The nightly run prunes unused images and never touches the running production image or the proxy - [ ] The nightly run can also be started by hand

root commented

2026-10-09 09:19:54 +00:00

(Migrated from gitlab.core-project.space)

GitHub issue relations, imported as "related" links (GitLab CE has no sub-issues or blocking links).

Parent (sub-issue of): #303
Blocked by: #306

> _GitHub issue relations, imported as "related" links (GitLab CE has no sub-issues or blocking links)._  - Parent (sub-issue of): #303 - Blocked by: #306

root (Migrated from gitlab.core-project.space) closed this issue

2026-10-09 12:20:44 +00:00

root commented

2026-10-13 08:41:06 +00:00

(Migrated from gitlab.core-project.space)

mentioned in issue #303