Repository navigation
ci: back to GitHub-hosted runners — this repo is public - #33
Merged
Merged
Conversation
Public repositories get free unlimited GitHub Actions minutes. The 2026-09-09 billing stop only affected private repos: public ones kept running throughout, verified against real runs. So the move to arc-arm64 bought nothing here, and it put a public repo's fork pull requests on a runner pod inside the false-infra cluster whose dind sidecar is privileged and shares a docker socket with the runner container. GitHub's own guidance is to use self-hosted runners with private repositories only. The cluster also shrank to one arm worker on 2026-09-10 and maxRunners is now 1, so staying would mean serialising behind every other repo on that pool. ubuntu-24.04-arm rather than ubuntu-latest: arc-arm64 is arm64, so this keeps the architecture the code is built and tested on. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
This repo is public, and GitHub Actions is free and unlimited for public repositories — verified against real runs: public repos kept succeeding right through the 2026-09-09 billing stop that killed CI in every private repo.
So running here on self-hosted runners bought nothing, and cost something real.
Why move back
Security. GitHub is explicit that self-hosted runners should only serve private repos: a pull request from a fork runs arbitrary code on infrastructure we own and reuse between jobs.
arc-arm64runs inside the false-infra k3s cluster, on a runner pod whosedindsidecar isprivileged: trueand shares a docker socket with the runner container. A fork PR against this repo would get that.Capacity. The cluster was shrunk on 2026-09-10 to a single arm worker, and
maxRunnersis now 1 — so jobs here serialise behind every other repo pointed at the same pool. GitHub-hosted gives a fresh VM per job, free.Architecture preserved
arc-arm64is arm64, soubuntu-24.04-armkeeps the code being built and tested on the same architecture.🤖 Generated with Claude Code