Add Contour e2e test for canary rollback

test/e2e-contour-tests.sh

@@ -144,6 +144,80 @@ done
 
 echo '✔ Canary promotion test passed'
 
+
+cat <<EOF | kubectl apply -f -
+apiVersion: flagger.app/v1alpha3
+kind: Canary
+metadata:
+  name: podinfo
+  namespace: test
+spec:
+  provider: contour
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: podinfo
+  progressDeadlineSeconds: 60
+  service:
+    port: 80
+    targetPort: 9898
+  canaryAnalysis:
+    interval: 15s
+    threshold: 15
+    maxWeight: 50
+    stepWeight: 10
+    metrics:
+    - name: request-success-rate
+      threshold: 99
+      interval: 1m
+    - name: request-duration
+      threshold: 500
+      interval: 1m
+    webhooks:
+      - name: acceptance-test
+        type: pre-rollout
+        url: http://flagger-loadtester.test/
+        timeout: 10s
+        metadata:
+          type: bash
+          cmd: "curl -sd 'test' http://podinfo-canary/token | grep token"
+      - name: contour-acceptance-test
+        type: pre-rollout
+        url: http://flagger-loadtester.test/
+        timeout: 10s
+        metadata:
+          type: bash
+          cmd: "curl -sd 'test' -H 'Host: app.example.com' http://envoy.projectcontour/token | grep token"
+      - name: load-test
+        url: http://flagger-loadtester.test/
+        timeout: 5s
+        metadata:
+          type: cmd
+          cmd: "hey -z 1m -q 5 -c 2 -host app.example.com http://envoy.projectcontour/delay/1"
+          logCmdOutput: "true"
+EOF
+
+echo '>>> Triggering canary deployment'
+kubectl -n test set image deployment/podinfo podinfod=stefanprodan/podinfo:3.1.2
+
+echo '>>> Waiting for canary rollback'
+retries=50
+count=0
+ok=false
+until ${ok}; do
+    kubectl -n test get canary/podinfo | grep 'Failed' && ok=true || ok=false
+    sleep 10
+    kubectl -n projectcontour logs deployment/flagger --tail 1
+    count=$(($count + 1))
+    if [[ ${count} -eq ${retries} ]]; then
+        kubectl -n projectcontour logs deployment/flagger
+        echo "No more retries left"
+        exit 1
+    fi
+done
+
+echo '✔ Canary rollback test passed'
+
 cat <<EOF | kubectl apply -f -
 apiVersion: flagger.app/v1alpha3
 kind: Canary
@@ -186,14 +260,14 @@ spec:
 EOF
 
 echo '>>> Triggering A/B testing'
-kubectl -n test set image deployment/podinfo podinfod=stefanprodan/podinfo:3.1.2
+kubectl -n test set image deployment/podinfo podinfod=stefanprodan/podinfo:3.1.3
 
 echo '>>> Waiting for A/B testing promotion'
 retries=50
 count=0
 ok=false
 until ${ok}; do
-    kubectl -n test describe deployment/podinfo-primary | grep '3.1.2' && ok=true || ok=false
+    kubectl -n test describe deployment/podinfo-primary | grep '3.1.3' && ok=true || ok=false
     sleep 10
     kubectl -n projectcontour logs deployment/flagger --tail 1
     count=$(($count + 1))