Check stale keys #125
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| name: Check stale keys | |
| on: | |
| schedule: | |
| # 11 pm UTC -> 10/11 am NZ, Tuesdays | |
| - cron: '0 23 * * 2' | |
| jobs: | |
| check-for-stale-keys: | |
| runs-on: ubuntu-latest | |
| outputs: | |
| ssh_stale: ${{ steps.stale_files.outputs.ssh_stale }} | |
| old_keys: ${{ steps.stale_files.outputs.old_keys }} | |
| steps: | |
| - name: Checkout code | |
| uses: actions/checkout@v3 | |
| with: | |
| fetch-depth: 0 | |
| - name: check stale files | |
| id: stale_files | |
| run: | | |
| set -x | |
| cd ssh | |
| git ls-tree -r --name-only HEAD | while read filename; do | |
| [[ "$(git log -1 --format="%at" -- $filename)" < "$(date --date='2 years ago' +%s)" ]] && echo "$(git log -1 --format="%ad" --date=format:'%Y-%m-%dT%H:%M:%S%z' -- $filename) $filename" | |
| done >> old_keys.txt || /bin/true | |
| # Using grep to skip keys where a yubi key is used so rotation not required. | |
| OLD_KEYS=$(\ | |
| cat old_keys.txt |\ | |
| grep -v eugene_authorized_keys |\ | |
| tr '\n' ';'\ | |
| ) | |
| echo "::set-output name=old_keys::$OLD_KEYS" | |
| if [ -s old_keys.txt ]; then | |
| # The file is not-empty. | |
| # Notify via slack? | |
| echo "::set-output name=ssh_stale::true" | |
| else | |
| # The file is empty. | |
| echo "::set-output name=ssh_stale::false" | |
| fi | |
| notify-for-stale-keys: | |
| runs-on: ubuntu-latest | |
| needs: check-for-stale-keys | |
| if: needs.check-for-stale-keys.outputs.ssh_stale == 'true' | |
| steps: | |
| - name: Post to a Slack channel | |
| id: slack | |
| uses: slackapi/[email protected] | |
| with: | |
| payload: | | |
| { | |
| "slack-message": "Stale ssh keys:\n ${{ needs.check-for-stale-keys.outputs.old_keys }}" | |
| } | |
| env: | |
| SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} |