add e2e linkerd tests for inconsistent naming between service name and selector

test/e2e-linkerd-tests.sh

@@ -100,6 +100,59 @@ spec:
           logCmdOutput: "true"
 EOF
 
+cat <<EOF | kubectl apply -f -
+apiVersion: flagger.app/v1beta1
+kind: Canary
+metadata:
+  name: podinfo-service
+  namespace: test
+spec:
+  targetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: podinfo-service
+  progressDeadlineSeconds: 60
+  service:
+    port: 9898
+    portDiscovery: true
+    apex:
+      annotations:
+        test: "annotations-test"
+      labels:
+        test: "labels-test"
+    headers:
+      request:
+        add:
+          x-envoy-upstream-rq-timeout-ms: "15000"
+          x-envoy-max-retries: "10"
+          x-envoy-retry-on: "gateway-error,connect-failure,refused-stream"
+  analysis:
+    interval: 15s
+    threshold: 15
+    maxWeight: 30
+    stepWeight: 10
+    metrics:
+    - name: request-success-rate
+      thresholdRange:
+        min: 99
+      interval: 1m
+    - name: latency
+      templateRef:
+        name: latency
+        namespace: istio-system
+      thresholdRange:
+        max: 500
+      interval: 1m
+    webhooks:
+      - name: load-test
+        url: http://flagger-loadtester.test/
+        timeout: 5s
+        metadata:
+          type: cmd
+          cmd: "hey -z 10m -q 10 -c 2 http://podinfo.test:9898/"
+          logCmdOutput: "true"
+EOF
+
 echo '>>> Waiting for primary to be ready'
 retries=50
 count=0
@@ -117,6 +170,19 @@ done
 
 echo '✔ Canary initialization test passed'
 
+passed=$(kubectl -n test get svc/podinfo -o jsonpath='{.spec.selector.app}' 2>&1 | { grep podinfo-primary || true; })
+if [ -z "$passed" ]; then
+  echo -e '\u2716 podinfo selector test failed'
+  exit 1
+fi
+passed=$(kubectl -n test get svc/podinfo-service-canary -o jsonpath='{.spec.selector.app}' 2>&1 | { grep podinfo || true; })
+if [ -z "$passed" ]; then
+  echo -e '\u2716 podinfo-service selector test failed'
+  exit 1
+fi
+
+echo '✔ Canary service custom metadata test passed'
+
 echo '>>> Triggering canary deployment'
 kubectl -n test set image deployment/podinfo podinfod=stefanprodan/podinfo:3.1.1