Stable Snapshot and Timestamp #121
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| # | |
| # Copyright 2021 The Sigstore Authors. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| name: Stable Snapshot and Timestamp | |
| permissions: read-all | |
| # Execute this as a weekly cron job and on changes to repository/ | |
| # when new published metadata is submitted. | |
| on: | |
| # Enable cron for re-signing snapshot and timestamp every week | |
| schedule: | |
| - cron: '0 16 * * 2' # every Tuesday at 9am PST | |
| # When a new root is staged | |
| push: | |
| branches: | |
| - main | |
| paths: | |
| - 'repository/staged/root.json' | |
| workflow_dispatch: | |
| inputs: | |
| dry_run: | |
| type: boolean | |
| default: false | |
| description: Does not trigger job, but checks on whether the job should run. | |
| force_snapshot: | |
| description: 'Whether to force a snapshot. Useful if workflow is within 5 days of a ceremony' | |
| required: false | |
| default: false | |
| type: boolean | |
| jobs: | |
| check: | |
| # This job checks whether snapshot/timestamp should run. | |
| runs-on: ubuntu-latest | |
| outputs: | |
| block_snapshot: ${{ steps.check.outputs.block_snapshot }} | |
| env: | |
| FORCE_SNAPSHOT: ${{ inputs.force_snapshot }} | |
| steps: | |
| - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4 | |
| with: | |
| fetch-depth: 0 | |
| - name: Determine whether to run a snapshot/timestamp | |
| id: check | |
| shell: bash | |
| run: | | |
| set -euo pipefail | |
| BRANCHES=$(git for-each-ref --format='%(refname:short)' | grep origin/ceremony/) | |
| echo "${BRANCHES}" | |
| # Check whether a ceremony was initiated within a week of the current date. | |
| echo "block_snapshot=false" >> "${GITHUB_OUTPUT}" | |
| # If we force a snapshot, exit early. | |
| if [[ "${FORCE_SNAPSHOT}" ]]; then | |
| exit | |
| fi | |
| ceremonyRegex="origin/ceremony/[0-9]{4}-[0-9]{2}-[0-9]{2}$" | |
| for branch in ${BRANCHES} | |
| do | |
| if [[ "$branch" =~ ${ceremonyRegex} ]]; then | |
| echo "found ceremony branch $branch" | |
| branch_date=$(echo "${branch}" | cut -d '/' -f3) | |
| days_diff=$(( ($(date -d "00:00" +%s) - $(date -d "${branch_date}" +%s)) / (24*3600) )) | |
| if [[ "$days_diff" -lt 2 ]]; then | |
| # Detected ceremony within 2 days of current date | |
| echo "detected ceremony branch $branch within 2 days, stopping automated cron" | |
| echo "block_snapshot=true" >> "${GITHUB_OUTPUT}" | |
| fi | |
| fi | |
| done | |
| run_snapshot_timestamp_publish: | |
| needs: check | |
| if: (github.event_name == 'schedule' && github.repository == 'sigstore/root-signing' && needs.check.outputs.block_snapshot == 'false') || (github.event_name != 'schedule' && inputs.dry_run == false) # Don't run workflow in forks on cron | |
| permissions: | |
| id-token: 'write' | |
| issues: 'write' | |
| pull-requests: 'write' | |
| contents: 'write' | |
| actions: 'read' | |
| uses: sigstore/root-signing/.github/workflows/reuseable-snapshot-timestamp.yml@main | |
| with: | |
| snapshot_key: 'gcpkms://projects/sigstore-root-signing/locations/global/keyRings/root/cryptoKeys/snapshot' | |
| timestamp_key: 'gcpkms://projects/sigstore-root-signing/locations/global/keyRings/root/cryptoKeys/timestamp' | |
| repo: 'repository/' | |
| branch: main | |
| provider: 'projects/163070369698/locations/global/workloadIdentityPools/github-actions-pool/providers/github-actions-provider' | |
| service_account: 'github-actions@sigstore-root-signing.iam.gserviceaccount.com' | |
| secrets: | |
| token: ${{ secrets.SIGSTORE_ROOT_SIGNING_FINE_GRAINED_PAT }} |