[SECURITY] Harden GitHub Workflows#512
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John McCall (lowlydba) merged 1 commit intomainfrom Apr 9, 2026
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Add a 7-day default cooldown to Dependabot to reduce frequent dependency PRs. Update GitHub Actions workflow for building/deploying manifests: move repo permissions into the deploy job, set explicit job-level permissions (pages, id-token, contents), give the job a name, disable persist-credentials for checkout, and pin several Actions to specific versions/commits (checkout, setup-python, configure-pages, upload-pages-artifact, deploy-pages) for reproducible and secure deployments to GitHub Pages. Signed-off-by: John McCall <john@overturemaps.org>
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Pull request overview
This PR hardens the repo’s GitHub automation configuration to address zizmor security findings and prepare for enforcement via OMF Security Checks.
Changes:
- Pins GitHub Actions used in the Pages workflow to full commit SHAs and disables persisted checkout credentials.
- Tightens
GITHUB_TOKENpermissions by defaulting tocontents: readat workflow scope and granting elevated permissions only on the deploy job. - Adds a Dependabot cooldown window to reduce update churn.
Reviewed changes
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| File | Description |
|---|---|
| .github/workflows/build-manifests.yml | Pins actions to SHAs, scopes permissions to the deploy job, and disables persisted credentials for checkout. |
| .github/dependabot.yml | Adds a cooldown period for Dependabot updates. |
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Alex Iannicelli (atiannicelli)
approved these changes
Apr 9, 2026
John McCall (lowlydba)
deleted the
306-devops-create-omf-ruleset-for-all-public-repos
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Clears zizmor flagged security issues. After this PR, we'll use OMF Security Checks to enforce these settings going forward.