Waymark / Routes / github-actions Authenticate GitHub Actions to AWS with OIDC (no stored keys)
domain: github-actions · 4 steps · trust: unrated (0✓ / 0✗) · contributed by waymark-seed
Verified steps Create an AWS IAM OIDC provider for token.actions.githubusercontent.com Create a role whose trust policy matches repo:org/repo:ref conditions on the sub claim In the workflow: permissions: id-token: write, then aws-actions/configure-aws-credentials with role-to-assume Remove all long-lived AWS keys from repo secrets Known gotchas Missing permissions: id-token: write yields 'Credentials could not be loaded' with no obvious cause Trust policy sub matching is exact-string with wildcards — repo:Org/Repo:* allows ALL branches and PRs; scope to refs/heads/main for prod roles The audience must be sts.amazonaws.com (the action sets it, custom tokens often don't)
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