Revert GH attestation workflow

.github/workflows/images_build.yml

@@ -30,7 +30,6 @@ env:
   TRUNK_ONLY_EVENT: ${{ contains(fromJSON('["schedule"]'), github.event_name) }}
   AUTO_PUSH_IMAGES: ${{ ! contains(fromJSON('["workflow_dispatch"]'), github.event_name) && vars.AUTO_PUSH_IMAGES }}
 
-  DOCKER_REGISTRY: ${{ vars.DOCKER_REGISTRY }}
   DOCKER_REPOSITORY: ${{ vars.DOCKER_REPOSITORY }}
   LATEST_BRANCH: ${{ github.event.repository.default_branch }}
   TRUNK_GIT_BRANCH: "refs/heads/trunk"
@@ -172,7 +171,6 @@ jobs:
       contents: read
       id-token: write
       packages: write
-      attestations: write
     steps:
       - name: Block egress traffic
         uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
@@ -270,6 +268,16 @@ jobs:
           ref: ${{ env.TRUNK_ONLY_EVENT == 'true' && env.TRUNK_GIT_BRANCH || '' }}
           fetch-depth: 1
 
+      - name: Install cosign
+        if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
+        uses: sigstore/cosign-installer@e1523de7571e31dbe865fd2e80c5c7c23ae71eb4
+        with:
+          cosign-release: 'v2.2.3'
+
+      - name: Check cosign version
+        if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
+        run: cosign version
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
         with:
@@ -302,7 +310,7 @@ jobs:
         with:
           images: |
               ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY_TEST, env.DOCKER_REPOSITORY_TEST, env.IMAGES_PREFIX, env.BASE_BUILD_NAME ) }},enable=${{ env.AUTO_PUSH_IMAGES != 'true' }}
-              ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY, env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, env.BASE_BUILD_NAME ) }},enable=${{ env.AUTO_PUSH_IMAGES == 'true' }}
+              ${{ format('{0}/{1}{2}', env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, env.BASE_BUILD_NAME ) }},enable=${{ env.AUTO_PUSH_IMAGES == 'true' }}
           context: ${{ env.TRUNK_ONLY_EVENT == 'true' && 'git' || '' }}
           tags: |
             type=semver,enable=${{ needs.init_build.outputs.current_branch != 'trunk' }},pattern={{version}},prefix=${{ matrix.os }}-
@@ -379,14 +387,25 @@ jobs:
           cache-from: ${{ steps.cache_data.outputs.cache_from }}
           cache-to: ${{ steps.cache_data.outputs.cache_to }}
 
-      - name: Attest images
+      - name: Sign the images with GitHub OIDC Token
         if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
-        id: attest
+        env:
-        uses: actions/attest-build-provenance@v1
+          DIGEST: ${{ steps.docker_build.outputs.digest }}
-        with:
+          TAGS: ${{ steps.meta.outputs.tags }}
-          subject-name: ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY, env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, env.BASE_BUILD_NAME ) }}
+        run: |
-          subject-digest: ${{ steps.docker_build.outputs.digest }}
+            images=""
-          push-to-registry: true
+            for tag in ${TAGS}; do
+                images+="${tag}@${DIGEST} "
+            done
+
+            echo "::group::Images to sign"
+            echo "$images"
+            echo "::endgroup::"
+
+            echo "::group::Signing"
+            echo "cosign sign --yes $images"
+            cosign sign --yes ${images}
+            echo "::endgroup::"
 
       - name: Image metadata
         env:
@@ -422,7 +441,6 @@ jobs:
       contents: read
       id-token: write
       packages: write
-      attestations: write
     steps:
       - name: Block egress traffic
         uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
@@ -460,6 +478,16 @@ jobs:
           ref: ${{ env.TRUNK_ONLY_EVENT == 'true' && env.TRUNK_GIT_BRANCH || '' }}
           fetch-depth: 1
 
+      - name: Install cosign
+        if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
+        uses: sigstore/cosign-installer@e1523de7571e31dbe865fd2e80c5c7c23ae71eb4
+        with:
+          cosign-release: 'v2.2.3'
+
+      - name: Check cosign version
+        if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
+        run: cosign version
+
       - name: Set up QEMU
         uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
         with:
@@ -492,7 +520,7 @@ jobs:
         with:
           images: |
               ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY_TEST, env.DOCKER_REPOSITORY_TEST, env.IMAGES_PREFIX, matrix.build ) }},enable=${{ env.AUTO_PUSH_IMAGES != 'true' }}
-              ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY, env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, matrix.build ) }},enable=${{ env.AUTO_PUSH_IMAGES == 'true' }}
+              ${{ format('{0}/{1}{2}', env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, matrix.build ) }},enable=${{ env.AUTO_PUSH_IMAGES == 'true' }}
           context: ${{ env.TRUNK_ONLY_EVENT == 'true' && 'git' || '' }}
           tags: |
             type=semver,enable=${{ needs.init_build.outputs.current_branch != 'trunk' }},pattern={{version}},prefix=${{ matrix.os }}-
@@ -525,20 +553,24 @@ jobs:
 
             echo "base_build_image=${IMAGE_NAME}@${IMAGE_DIGEST}" >> $GITHUB_OUTPUT
 
-      - name: Verify ${{ env.BASE_BUILD_NAME }}:${{ matrix.os }} attestation
+      - name: Verify ${{ env.BASE_BUILD_NAME }}:${{ matrix.os }} cosign
         if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
         env:
          BASE_IMAGE: ${{ steps.base_build.outputs.base_build_image }}
-         REPOSITORY: ${{ github.repository }}
+         OIDC_ISSUER: ${{ env.OIDC_ISSUER }}
-         DOCKER_REGISTRY: ${{ env.DOCKER_REGISTRY }}
+         IDENTITY_REGEX: ${{ env.IDENTITY_REGEX }}
-         GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
             echo "::group::Image sign data"
+            echo "OIDC issuer=$OIDC_ISSUER"
+            echo "Identity=$IDENTITY_REGEX"
             echo "Image to verify=$BASE_IMAGE"
             echo "::endgroup::"
 
             echo "::group::Verify signature"
-            gh attestation verify oci://$DOCKER_REGISTRY/$BASE_IMAGE -R $REPOSITORY
+            cosign verify \
+                    --certificate-oidc-issuer-regexp "$OIDC_ISSUER" \
+                    --certificate-identity-regexp "$IDENTITY_REGEX" \
+                "$BASE_IMAGE"
             echo "::endgroup::"
 
       - name: Prepare cache data
@@ -607,14 +639,25 @@ jobs:
             org.opencontainers.image.revision=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.revision'] }}
             org.opencontainers.image.created=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.created'] }}
 
-      - name: Attest images
+      - name: Sign the images with GitHub OIDC Token
         if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
-        id: attest
+        env:
-        uses: actions/attest-build-provenance@v1
+          DIGEST: ${{ steps.docker_build.outputs.digest }}
-        with:
+          TAGS: ${{ steps.meta.outputs.tags }}
-          subject-name: ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY, env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, matrix.build ) }}
+        run: |
-          subject-digest: ${{ steps.docker_build.outputs.digest }}
+            images=""
-          push-to-registry: true
+            for tag in ${TAGS}; do
+                images+="${tag}@${DIGEST} "
+            done
+
+            echo "::group::Images to sign"
+            echo "$images"
+            echo "::endgroup::"
+
+            echo "::group::Signing"
+            echo "cosign sign --yes $images"
+            cosign sign --yes ${images}
+            echo "::endgroup::"
 
       - name: Image metadata
         env:
@@ -651,7 +694,6 @@ jobs:
       contents: read
       id-token: write
       packages: write
-      attestations: write
     steps:
       - name: Block egress traffic
         uses: step-security/harden-runner@63c24ba6bd7ba022e95695ff85de572c04a18142 # v2.7.0
@@ -781,6 +823,22 @@ jobs:
           ref: ${{ env.TRUNK_ONLY_EVENT == 'true' && env.TRUNK_GIT_BRANCH || '' }}
           fetch-depth: 1
 
+      - name: Install cosign
+        if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
+        uses: sigstore/cosign-installer@e1523de7571e31dbe865fd2e80c5c7c23ae71eb4
+        with:
+          cosign-release: 'v2.2.3'
+
+      - name: Check cosign version
+        if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
+        run: cosign version
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@68827325e0b33c7199eb31dd4e31fbe9023e06e3 # v3.0.0
+        with:
+          image: tonistiigi/binfmt:latest
+          platforms: all
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@f95db51fddba0c2d1ec667646a06c2ce06100226 # v3.0.0
         with:
@@ -836,7 +894,7 @@ jobs:
         with:
           images:  |
               ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY_TEST, env.DOCKER_REPOSITORY_TEST, env.IMAGES_PREFIX, matrix.build ) }},enable=${{ env.AUTO_PUSH_IMAGES != 'true' }}
-              ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY, env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, matrix.build ) }},enable=${{ env.AUTO_PUSH_IMAGES == 'true' }}
+              ${{ format('{0}/{1}{2}', env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, matrix.build ) }},enable=${{ env.AUTO_PUSH_IMAGES == 'true' }}
           context: ${{ env.TRUNK_ONLY_EVENT == 'true' && 'git' || '' }}
           tags: |
             type=semver,enable=${{ needs.init_build.outputs.current_branch != 'trunk' }},pattern={{version}},prefix=${{ matrix.os }}-
@@ -871,6 +929,26 @@ jobs:
 
             echo "base_build_image=${IMAGE_NAME}@${IMAGE_DIGEST}" >> $GITHUB_OUTPUT
 
+      - name: Verify ${{ steps.build_base_image.outputs.build_base }}:${{ matrix.os }} cosign
+        if: ${{ matrix.build != 'snmptraps' && env.AUTO_PUSH_IMAGES == 'true' }}
+        env:
+         BASE_IMAGE: ${{ steps.base_build.outputs.base_build_image }}
+         OIDC_ISSUER: ${{ env.OIDC_ISSUER }}
+         IDENTITY_REGEX: ${{ env.IDENTITY_REGEX }}
+        run: |
+            echo "::group::Image sign data"
+            echo "OIDC issuer=${OIDC_ISSUER}"
+            echo "Identity=${IDENTITY_REGEX}"
+            echo "Image to verify=${BASE_IMAGE}"
+            echo "::endgroup::"
+
+            echo "::group::Verify signature"
+            cosign verify \
+                    --certificate-oidc-issuer-regexp "${OIDC_ISSUER}" \
+                    --certificate-identity-regexp "${IDENTITY_REGEX}" \
+                "${BASE_IMAGE}"
+            echo "::endgroup::"
+
       - name: Prepare cache data
         if: ${{ matrix.build != 'snmptraps' }}
         id: cache_data
@@ -915,14 +993,25 @@ jobs:
             org.opencontainers.image.revision=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.revision'] }}
             org.opencontainers.image.created=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.created'] }}
 
-      - name: Attest images
+      - name: Sign the images with GitHub OIDC Token
         if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}
-        id: attest
+        env:
-        uses: actions/attest-build-provenance@v1
+          DIGEST: ${{ steps.docker_build.outputs.digest }}
-        with:
+          TAGS: ${{ steps.meta.outputs.tags }}
-          subject-name:  ${{ format('{0}/{1}/{2}{3}', env.DOCKER_REGISTRY, env.DOCKER_REPOSITORY, env.IMAGES_PREFIX, matrix.build ) }}
+        run: |
-          subject-digest: ${{ steps.docker_build.outputs.digest }}
+            images=""
-          push-to-registry: true
+            for tag in ${TAGS}; do
+                images+="${tag}@${DIGEST} "
+            done
+
+            echo "::group::Images to sign"
+            echo "$images"
+            echo "::endgroup::"
+
+            echo "::group::Signing"
+            echo "cosign sign --yes $images"
+            cosign sign --yes ${images}
+            echo "::endgroup::"
 
       - name: Image metadata
         if: ${{ env.AUTO_PUSH_IMAGES == 'true' }}