ci: reduce spread 18.04 runners and increase 22.04 runners
Metadata
Current evaluation
PR #1526 merged as commit ccdd6015, rebalancing .github/workflows/spread.yaml to run fewer Ubuntu 18.04 spread runners and more 22.04 runners, matching where most tests now live.
Resolution: closed resolved
Reason: The PR was approved by two reviewers and merged to main as commit ccdd6015 ('ci: reduce spread 18.04 runners and increase 22.04 runners (#1526)'), a +2/-2 change to the Spread matrix in .github/workflows/spread.yaml. The runner split was later reworked further by #2783, which moved Spread onto OpenStack runners.
Evaluated by: mr-cal-bot
No scores available.
Issue body
Doing this because we barely test anything on 18.04 anymore, but 22.04 has many tests.
Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| stealth/space-bunny-alpha | — | closed resolved | PR #1526 merged as commit ccdd6015, rebalancing .github/workflows/spread.yaml to run fewer Ubuntu 18.04 spread runners and more 22.04 runners, matching where most tests now live. | |
| stealth/space-bunny-alpha | — | closed resolved | Merged #1526 in commit ccdd6015, reducing Ubuntu 18.04 Spread runners and increasing 22.04 runners to match current test volume. | |
| qwen/qwen3.6-35b-a3b | — | — | Merged after two approvals. Updated CI configuration to reduce Ubuntu 18.04 runners and increase Ubuntu 22.04 runners, reflecting minimal 18.04 testing and heavy 22.04 usage. Modified 2 lines in one file. | |
| qwen3.6-35b-a3b-mtp-q6 | — | — | Merged CI changes to reduce Ubuntu 18.04 runners and increase Ubuntu 22.04 runners, aligning infrastructure with current testing priorities where 22.04 handles most test coverage. |
Update history
No update history recorded yet.
Related work
-
Related To:
canonical/charmcraft#2783
(confidence 45%)
Later PR 'ci: use openstack for spread' superseded this runner-allocation approach by moving Spread off fixed 18.04/22.04 self-hosted runners.
Related issues
| Issue | Project | State | Summary | Similarity |
|---|---|---|---|---|
| #1611 ci(spread): rebalance spread runners | charmcraft | merged | Merged PR #1611 as commit 556dc4f2, rebalancing Spread runner capacity toward Ubuntu 22.04 to match its higher test volume versus 20.04. | |
| #2525 test(spread): enable Ubuntu 25.10 and 26.04 spread runners | charmcraft | merged | Merged PR #2525 as commit 8beb372d, adding Ubuntu 25.10 and 26.04 Spread runners and resolving #2480. | |
| #573 ci: run spread tests on 'spread-installed' runners | rockcraft | merged | Merged PR #573 as commit c8ff5823, updating CI to run Spread tests on runners labeled "spread-installed." | |
| #571 ci: use self-hosted runners for ci workflows | rockcraft | closed | Closed unmerged and superseded by PR #573, whose commit c8ff5823 moved spread tests to self-hosted runners labeled spread-enabled. | |
| #514 feat: increase spread workers | rockcraft | closed | PR to bump spread workers was closed unmerged by the author in favour of PR #519 ("spread: reorganize spread tests"), which merged as commit 90d85343 and distributed spread tests across Jammy VMs instead. | |
| #495 ci(spread): run spread on all systems | imagecraft | merged | Merged PR #495 as commit 4c5701d, replacing per-system spread matrix limits with backend-wide runs controlled by spread.yaml. | |
| #490 ci(spread): run spread on all systems | imagecraft | closed | PR #490 was superseded by PR #495 (commit 4c5701d), which merged the same change to run spread tests on all systems per backend. | |
| #95 fix(test): fix spread tests on Fedora | snapcraft-rocks | merged | Merged PR #95 (maintainer lengau) dropped the closed core18 docker branch from the spread test setup so Fedora 39 runs on the default branch; CI-only change (+1/-5, one file), all checks green. | |
| #1463 Limit spread tests to runners that have spread | charmcraft | closed | Spread CI was restricted to self-hosted runners labeled spread-installed by merged PR #1510 (commit 9c98b399), fixing #1463. | |
| #3754 spread: move core22 to stable | snapcraft | merged | Merged PR #3754 (9076dd4) moved spread tests from core22 latest/edge to stable, avoiding GitHub runners' inability to meet edge core22's snapd 2.55.5 requirement. |