ci: enable gcp-sev-snp for daily tests (#3058)

* Run gcp-sev-snp debug e2e test in daily
* Fix verify e2e test not creating json file for gcp-sev-snp

---------

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

.github/actions/e2e_verify/action.yml

@@ -66,12 +66,16 @@ runs:
           forwarderPID=$!
           sleep 5
 
-          if [[ ${{ inputs.attestationVariant }} == "azure-sev-snp" ]] || [[ ${{ inputs.attestationVariant }} == "aws-sev-snp" ]]; then
+          case "${{ inputs.attestationVariant }}"
+          in
+            "azure-sev-snp"|"aws-sev-snp"|"gcp-sev-snp")
               echo "Extracting TCB versions for API update"
               constellation verify --cluster-id "${clusterID}" --node-endpoint localhost:9090 -o json > "snp-report-${node}.json"
-          else
+              ;;
+            *)
               constellation verify --cluster-id "${clusterID}" --node-endpoint localhost:9090
-          fi
+              ;;
+          esac
 
           kill $forwarderPID
         done
@@ -90,11 +94,6 @@ runs:
         COSIGN_PASSWORD: ${{ inputs.cosignPassword }}
         COSIGN_PRIVATE_KEY: ${{ inputs.cosignPrivateKey }}
       run: |
-        if [[ ${{ inputs.attestationVariant }} == "aws-sev-snp" ]] && constellation version | grep -q "v2.13."; then
-          echo "Skipping TCB upload for AWS on CLI v2.13"
-          exit 0
-        fi
-
         reports=(snp-report-*.json)
         if [ -z ${#reports[@]} ]; then
             exit 1

.github/workflows/e2e-test-daily.yml

@@ -46,10 +46,15 @@ jobs:
       max-parallel: 5
       matrix:
         kubernetesVersion: ["1.28"] # should be default
-        # TODO(msanft): Enable GCP SEV-SNP once stable GCP SEV-SNP images exist.
-        attestationVariant: ["gcp-sev-es", "azure-sev-snp", "azure-tdx", "aws-sev-snp"]
+        attestationVariant: ["gcp-sev-es", "gcp-sev-snp", "azure-sev-snp", "azure-tdx", "aws-sev-snp"]
         refStream: ["ref/main/stream/debug/?", "ref/release/stream/stable/?"]
         test: ["sonobuoy quick"]
+        exclude:
+          # TODO(v2.18 msanft): Remove exclude rule for GCP SEV-SNP stable once images exist.
+          - kubernetesVersion: "1.28"
+            attestationVariant: "gcp-sev-snp"
+            refStream: "ref/release/stream/stable/?"
+            test: "sonobuoy quick"
     runs-on: ubuntu-22.04
     permissions:
       id-token: write