Files
seaweedfs/.github/actions/sign-image/action.yml
T

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YAML

name: Sign container images
description: >
Keyless cosign signature on each image, then a verification pass against the
identity the signature should carry, so a misconfigured job fails here and not
on someone's cluster. That identity is the calling workflow's own,
https://github.com/<owner>/<repo>/.github/workflows/<file>@<ref>.
The calling job needs `id-token: write` and a registry login for every image.
inputs:
images:
description: Image references by digest (name@sha256:...), whitespace separated.
required: true
runs:
using: composite
steps:
- name: Install cosign
uses: sigstore/cosign-installer@v4.1.2
- name: Sign
shell: bash
env:
IMAGES: ${{ inputs.images }}
run: |
set -euo pipefail
# The .sig tag layout: the OCI-referrer bundle cosign 3 writes by default
# is not read by the Kyverno and policy-controller releases in use today.
# Its signing config only supports bundles, so disable that path too.
cosign sign --yes --recursive --new-bundle-format=false --use-signing-config=false $IMAGES
- name: Verify
shell: bash
env:
IMAGES: ${{ inputs.images }}
run: |
set -euo pipefail
cosign verify \
--certificate-oidc-issuer https://token.actions.githubusercontent.com \
--certificate-identity "https://github.com/$GITHUB_WORKFLOW_REF" \
$IMAGES