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Replace Cosign with GitHub native attestation #141

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Aug 31, 2024
Merged

Replace Cosign with GitHub native attestation #141

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22 changes: 1 addition & 21 deletions .github/workflows/container-build-push.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -26,18 +26,11 @@ jobs:
permissions:
contents: read
packages: write
# This is used to complete the identity challenge
# with sigstore/fulcio.
id-token: write
# Used by actions/attest-build-provenance
id-token: write
attestations: write

steps:
- name: "Install cosign"
uses: sigstore/cosign-installer@59acb6260d9c0ba8f4a2f9d9b48431a222b68e20 # v3.5.0
with:
cosign-release: "v1.13.6"

- name: "Setup Docker buildx"
uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db # v3.6.1

Expand Down Expand Up @@ -71,19 +64,6 @@ jobs:
cache-from: type=gha
cache-to: type=gha,mode=max

# Sign the resulting Docker image digest.
# This will only write to the public Rekor transparency log when the Docker
# repository is public to avoid leaking data. If you would like to publish
# transparency data even for private images, pass --force to cosign below.
# https://github.com/sigstore/cosign
- name: "Sign the published Docker image"
if: ${{ inputs.push }}
env:
COSIGN_EXPERIMENTAL: "true"
# This step uses the identity token to provision an ephemeral certificate
# against the sigstore community Fulcio instance.
run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push.outputs.digest }}

- name: Generate artifact attestation
if: ${{ inputs.push }}
uses: actions/attest-build-provenance@210c1913531870065f03ce1f9440dd87bc0938cd # v1.4.0
Expand Down