Add CI action to install CSI drivers

.github/actions/constellation_destroy/action.yml

@@ -1,8 +1,30 @@
 name: Constellation destroy
 description: "Destroy a running Constellation cluster."
+
 runs:
-  using: 'composite'
+  using: "composite"
   steps:
-  - name: Constellation terminate
-    run: constellation terminate --yes
-    shell: bash
+    - name: Delete PVs
+      shell: bash
+      run: |
+        ELAPSED=0
+        kubectl delete pvc --all --wait=true || true
+        echo "::group::Wait for PV deletion"
+        until [ "$(kubectl get pv -o json | jq '.items | length')" == "0" ] || [ $ELAPSED -gt $PV_DELETION_TIMEOUT ];
+        do
+        echo $(kubectl get pv -o json | jq '.items | length') PV remaining..
+        sleep 1
+        ELAPSED=$((ELAPSED+1))
+        done
+        if [ $ELAPSED -gt $PV_DELETION_TIMEOUT ]; then
+        echo "Timed out waiting for PV deletion.."
+        exit 1
+        fi
+        echo "::endgroup::"
+      env:
+        KUBECONFIG: ${{ github.workspace }}/constellation-admin.conf
+        PV_DELETION_TIMEOUT: "120" # 2 minutes timeout for pv deletion
+
+    - name: Constellation terminate
+      run: constellation terminate --yes
+      shell: bash

.github/actions/install_csi_drivers/action.yml

@@ -0,0 +1,35 @@
+name: Install CSI drivers
+description: Installs the Constellation CSI drivers depending on the cloud provider.
+
+inputs:
+  cloudProvider:
+    description: |
+      Cloud provider for the Constellation cluster.
+      Either 'gcp' or 'azure'.
+    required: true
+  kubeconfig:
+    description: "The kubeconfig of the cluster to test."
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: Install Constellation GCP CSI driver and create storage class
+      if: inputs.cloudProvider == 'gcp'
+      shell: bash
+      run: |
+        kubectl apply -k github.com/edgelesssys/constellation-gcp-compute-persistent-disk-csi-driver/deploy/kubernetes/overlays/edgeless/latest
+        kubectl wait -n kube-system deployments csi-gce-pd-controller --for condition=available
+        kubectl apply -f .github/actions/install_csi_drivers/gcp_sc.yml
+      env:
+        KUBECONFIG: ${{ inputs.kubeconfig }}
+
+    - name: Install Constellation Azure CSI driver and create storage class
+      if: inputs.cloudProvider == 'azure'
+      shell: bash
+      run: |
+        helm install azuredisk-csi-driver https://raw.githubusercontent.com/edgelesssys/constellation-azuredisk-csi-driver/main/charts/edgeless/latest/azuredisk-csi-driver.tgz --namespace kube-system --set linux.distro=fedora --set controller.replicas=1
+        kubectl wait -n kube-system deployments csi-azuredisk-controller --for condition=available --timeout=300s
+        kubectl apply -f .github/actions/install_csi_drivers/azure_sc.yml
+      env:
+        KUBECONFIG: ${{ inputs.kubeconfig }}

.github/actions/k-bench/action.yml

@@ -16,7 +16,7 @@ runs:
       uses: actions/setup-python@13ae5bb136fac2878aff31522b9efb785519f984 # tag=v4.3.0
       with:
         python-version: "3.10"
-    
+
     - name: Install evaluation dependencies
       shell: bash
       run: pip install -r .github/actions/k-bench/evaluate/requirements.txt
@@ -26,7 +26,7 @@ runs:
       with:
         fetch-depth: 0
         repository: "edgelesssys/k-bench"
-        ref: 'feat/constellation'
+        ref: "feat/constellation"
         path: k-bench
 
     - name: Install patched K-Bench
@@ -34,25 +34,11 @@ runs:
       run: ./install.sh
       shell: bash
 
-    - name: Install Constellation GCP CSI driver and create storage class
-      if: ${{ inputs.cloudProvider == 'gcp' }}
-      shell: bash
-      run: |
-        kubectl apply -k github.com/edgelesssys/constellation-gcp-compute-persistent-disk-csi-driver/deploy/kubernetes/overlays/edgeless/latest
-        kubectl wait -n kube-system deployments csi-gce-pd-controller --for condition=available
-        kubectl apply -f .github/actions/k-bench/gcp_sc.yml
-      env:
-        KUBECONFIG: ${{ inputs.kubeconfig }}
-
-    - name: Install Constellation Azure CSI driver and create storage class
-      if: ${{ inputs.cloudProvider == 'azure' }}
-      shell: bash
-      run: |
-        helm install azuredisk-csi-driver https://raw.githubusercontent.com/edgelesssys/constellation-azuredisk-csi-driver/main/charts/edgeless/latest/azuredisk-csi-driver.tgz --namespace kube-system --set linux.distro=fedora --set controller.replicas=1
-        kubectl wait -n kube-system deployments csi-azuredisk-controller --for condition=available --timeout=300s
-        kubectl apply -f .github/actions/k-bench/azure_sc.yml
-      env:
-        KUBECONFIG: ${{ inputs.kubeconfig }}
+    - name: Install Constellation CSI drivers and create storage class
+      uses: ./.github/actions/install_csi_drivers
+      with:
+        kubeconfig: ${{ inputs.kubeconfig }}
+        cloudProvider: ${{ inputs.cloudProvider }}
 
     - name: Run K-Bench
       shell: bash
@@ -84,7 +70,7 @@ runs:
         kubectl delete namespace kbench-pod-namespace --wait=true || true
         echo "::group::Wait for PV deletion"
         until [ "$(kubectl get pv -o json | jq '.items | length')" == "0" ] || [ $ELAPSED -gt $PV_DELETION_TIMEOUT ];
-        do 
+        do
           echo $(kubectl get pv -o json | jq '.items | length') PV remaining..
           sleep 1
           ELAPSED=$((ELAPSED+1))