edu/.github/workflows/digestabot.yaml at main · chainguard-dev/edu · GitHub

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# Copyright 2026 Chainguard, Inc.
# SPDX-License-Identifier: Apache-2.0

name: Image digest update

on:
  workflow_dispatch:
  schedule:
    - cron: "0 1 * * *"

permissions: {}

jobs:
  image-update:
    name: Image digest update
    runs-on: ubuntu-latest
    if: github.repository == 'chainguard-dev/edu'

    permissions:
      contents: read
      id-token: write

    steps:
      - uses: step-security/harden-runner@dc2769abcc0fcfbadfc1df54081c1608579ef6b2 # v2.22.2
        with:
          egress-policy: block
          allowed-endpoints: >
            *.blob.core.windows.net:443
            *.githubapp.com:443
            api.github.com:443
            cgr.dev:443
            fulcio.sigstore.dev:443
            github.com:443
            octo-sts.dev:443
            rekor.sigstore.dev:443
            release-assets.githubusercontent.com:443
            tuf-repo-cdn.sigstore.dev:443

      - uses: chainguard-dev/actions/setup-gitsign@53668650c25af6e8864f1d1ddaa69ed4db4cdf09 # v1.6.42

      - uses: octo-sts/action@f603d3be9d8dd9871a265776e625a27b00effe05 # v1.1.1
        id: octo-sts
        with:
          scope: ${{ github.repository }}
          identity: digestabot

      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        # zizmor: ignore[artipacked] - credentials needed for digestabot to push and create PRs
        with:
          token: ${{ steps.octo-sts.outputs.token }}

      - uses: chainguard-dev/digestabot@33d0b78e580aa0c83fe188eb3dfad6611b662479 # v1.3.2
        with:
          token: ${{ steps.octo-sts.outputs.token }}
          include-files: ".github/workflows/*.yaml,Dockerfile*"