feat: implement issue #745 — Canary tag-move 403 'Resource not accessible by integration' — release-manager App token can't PATCH protected channel tags (follow-up to #743/#744)#746
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📝 WalkthroughWalkthroughThe workflow mints a repo-scoped write token while retaining the owner-wide read token. Canary rollout tag mutations use the write token, with Bats coverage for token selection and fallback behavior. ChangesCanary tag write authorization
Estimated code review effort: 3 (Moderate) | ~20 minutes Possibly related PRs
Sequence Diagram(s)sequenceDiagram
participant CanaryWorkflow
participant CanaryRollout
participant GitHubAPI
CanaryWorkflow->>CanaryRollout: Provide GH_TOKEN and CANARY_WRITE_TOKEN
CanaryRollout->>CanaryRollout: Select CANARY_WRITE_TOKEN for mutations
CanaryRollout->>GitHubAPI: PATCH or POST channel tag
GitHubAPI-->>CanaryRollout: Return tag mutation response
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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Dev-Lead — waiting on PR blockers (intent: review-changes)PR: #746 |
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Note @don-petry I reviewed this PR and no code changes were needed, but it still has blocking checks or reviews (failing or cancelled checks, or changes-requested reviews), so I cannot mark it done yet. I'll re-check automatically. |
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Code Review
This pull request introduces a helper function _gh_write in scripts/canary-rollout.sh to route GitHub tag write operations through a repo-scoped write token (CANARY_WRITE_TOKEN) when available, falling back to the ambient GH_TOKEN otherwise. This resolves permission issues where owner-wide tokens are refused bypasses on protected channel tags. Corresponding unit tests have been added in tests/canary_rollout.bats to verify the token routing behavior. There are no review comments, and I have no feedback to provide.
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Pull request overview
Addresses #745 by ensuring canary promotion tag mutations run with a repo-scoped GitHub App installation token (so protected channel-tag updates honor the release-channel-tags ruleset bypass), while preserving the existing owner-wide App token for fleet-wide read paths (run-history enumeration).
Changes:
- Add
_gh_writewrapper to route only tag-writegh apicalls throughCANARY_WRITE_TOKENwhen present. - Mint and inject a second, repo-scoped App token (
permission-contents: writeon.github+.github-private) into the canary-rollout workflow. - Add bats coverage asserting
_gh_move_tagand_gh_create_annotated_taguse the write token for mutations and fall back toGH_TOKENwhen unset.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
scripts/canary-rollout.sh |
Introduces _gh_write and routes tag-mutation API calls through CANARY_WRITE_TOKEN when provided. |
.github/workflows/canary-rollout.yml |
Mints a repo-scoped write token and passes it as CANARY_WRITE_TOKEN while keeping the owner-wide token for reads. |
tests/canary_rollout.bats |
Adds tests that assert write token routing behavior for tag PATCH/POST and annotated tag creation. |
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Dev-Lead — waiting on PR blockers (intent: fix-reviews)PR: #746 |
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@donpetry-bot please review — implements the #745 two-token fix (repo-scoped CANARY_WRITE_TOKEN for _gh_move_tag/_gh_create_annotated_tag, owner-wide token retained for the gate reads). The only red checks are the benign dev-lead/dispatch+ci-relay concurrency cancellations. |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot re-review please — prior review 429'd (Claude quota) and never posted a verdict. Real CI is green; only the benign dev-lead/dispatch+ci-relay concurrency checks are red. Implements the #745 two-token fix. |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
…rite-token step [#745] Ties the repo-scoped write-token fix to the diagnostic evidence from #744's un-suppressed error, for future debuggers. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01J4z5uYVjwdyQjh2wFZxkut
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Dev-Lead — waiting on PR blockers (intent: review-changes)PR: #746 |
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Note @don-petry I reviewed this PR and no code changes were needed, but it still has blocking checks or reviews (failing or cancelled checks, or changes-requested reviews), so I cannot mark it done yet. I'll re-check automatically. |
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Caution
Some comments are outside the diff and can’t be posted inline due to platform limitations.
⚠️ Outside diff range comments (1)
.github/workflows/canary-rollout.yml (1)
139-152: 🩺 Stability & Availability | 🟠 Major | ⚡ Quick winFail if the repo-scoped write token is empty.
The downstream wrapper falls back to
GH_TOKENwhenCANARY_WRITE_TOKENis unset. If this mint step produces an empty output, tag writes retry with the owner-wide token and reproduce the original 403 instead of failing at the credential boundary. Add an explicit non-empty check before later steps consume the token.If this workflow is template-managed, apply the guard in the upstream template and sync this copy. Based on learnings, shared workflow fixes belong in the upstream template source.
Proposed guard
- name: Mint repo-scoped write token (tag moves) id: write-token uses: actions/create-github-app-token@bcd2ba49218906704ab6c1aa796996da409d3eb1 # v3.2.0 with: client-id: ${{ vars.RELEASE_MANAGER_APP_CLIENT_ID }} private-key: ${{ secrets.RELEASE_MANAGER_APP_KEY }} owner: ${{ github.repository_owner }} repositories: | .github .github-private permission-contents: write + - name: Verify repo-scoped write token was minted + env: + WRITE_TOKEN: ${{ steps.write-token.outputs.token }} + run: | + set -euo pipefail + if [ -z "${WRITE_TOKEN}" ]; then + echo "::error::Repo-scoped write token was not minted" + exit 1 + fi🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In @.github/workflows/canary-rollout.yml around lines 139 - 152, Add an immediate validation step after the “Mint repo-scoped write token (tag moves)” action, checking its token output is non-empty and failing the job before any downstream wrapper can fall back to GH_TOKEN. If this workflow is generated from a shared template, implement the guard in the upstream template and synchronize this copy.Source: Learnings
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.
Outside diff comments:
In @.github/workflows/canary-rollout.yml:
- Around line 139-152: Add an immediate validation step after the “Mint
repo-scoped write token (tag moves)” action, checking its token output is
non-empty and failing the job before any downstream wrapper can fall back to
GH_TOKEN. If this workflow is generated from a shared template, implement the
guard in the upstream template and synchronize this copy.
ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: ASSERTIVE
Plan: Pro
Run ID: 00267169-6749-4afc-b251-c11c6dbc5f5f
📒 Files selected for processing (1)
.github/workflows/canary-rollout.yml
Dev-Lead — waiting on PR blockers (intent: fix-reviews)PR: #746 |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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@donpetry-bot checks green — please review/approve if clean (#745 canary tag-move 403 fix). |
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@don-petry I'm on it — starting a fresh review now. Results will appear in a few minutes. |
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Automated review — APPROVED ✓
Risk: MEDIUM
Reviewed commit: 15219dadb565650f3a6e0eeff223e81442c568fc
Cascade: triage → audit (triage: haiku 4.5 → deep: opus 4.8 + duck: o4-mini → audit: fable 5)
Summary
PR #746 mints a second, strictly narrower GitHub App installation token (repos: .github + .github-private, Contents:write only) from the same App key and routes only the protected channel-tag PATCH/POST through it, fixing the #745 403. Independently verified: the pinned create-github-app-token SHA is the authentic v3.2.0 tag; triggers are schedule + human-gated dispatch with no expression-injection or pull_request_target surface; the App was already a listed bypass actor on the release-channel-tags ruleset, so no new protection bypass is introduced. All security CI (gitleaks, CodeQL, ShellCheck, Agent Security Scan, SonarCloud) is green and CODEOWNERS/branch protection still requires org-leads human sign-off before merge.
Findings
- info: actions/create-github-app-token@bcd2ba4 independently verified against the upstream repo: it is exactly the v3.2.0 (and v3) tag commit dated 2026-05-12. Pin-with-version-comment matches org ci-standards.
- info: Second token is a scope REDUCTION relative to the existing owner-wide token: same App key (RELEASE_MANAGER_APP_KEY), repositories limited to .github + .github-private, permission-contents: write only. Token flows only via step output -> env (CANARY_WRITE_TOKEN) -> GH_TOKEN for the gh child process; never echoed, and _gh_write error output contains only the API response body, not the credential.
- info: The App (Integration 4193127) is already an always-mode bypass actor on the release-channel-tags ruleset per issue #745; the PR changes the token form GitHub honors for that existing grant rather than adding any new bypass actor or weakening any ruleset.
- minor: CodeRabbit's fallback concern (empty CANARY_WRITE_TOKEN silently retries with the owner-wide token) is effectively moot in CI: a failed 'Mint repo-scoped write token' step fails the job before the engine runs, so the fallback branch is reachable only in tests/local runs, and a real 403 re-fails loudly. An explicit non-empty guard mirroring the first token's verify step would fail marginally faster at the credential boundary. Non-blocking.
- info: Workflow triggers remain schedule + workflow_dispatch (choice/boolean inputs, promote defaults to dry-run); workflow-level permissions are contents: read; the mint step consumes only vars.RELEASE_MANAGER_APP_CLIENT_ID and secrets.RELEASE_MANAGER_APP_KEY with a static repositories list — no untrusted data reaches the credential path.
Reviewed by the PR-review cascade (triage: haiku 4.5 → deep: opus 4.8 + duck: o4-mini → audit: fable 5). Reply if you need a human review.
…ase-manager App can't bypass tag ruleset even repo-scoped; need effective-permission diagnostic (#750) * feat: implement issue #749 — Canary 403 NOT fixed by #745/#746 — release-manager App can't bypass tag ruleset even repo-scoped; need effective-permission diagnostic * fix(reviews): address review comments [skip ci-relay] * chore: dev-lead update (review-changes) [skip ci-relay] --------- Co-authored-by: donpetry-bot <281750570+donpetry-bot@users.noreply.github.com>
Closes #745
Implemented by dev-lead agent. Please review.
Summary by CodeRabbit