Standardizes loadgen behavior for Istio mTLS=STRICT (#279)

* Adds liveness probe annotation, moves loadgen initcontainer into main

* cleanup

* cleanup

* updated wrong manifests

* respond to comments

kubernetes-manifests/frontend.yaml

@@ -24,6 +24,8 @@ spec:
     metadata:
       labels:
         app: frontend
+      annotations:
+        sidecar.istio.io/rewriteAppHTTPProbers: "true"
     spec:
       containers:
         - name: server

kubernetes-manifests/loadgenerator.yaml

@@ -11,7 +11,6 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
 apiVersion: apps/v1
 kind: Deployment
 metadata:
@@ -25,20 +24,11 @@ spec:
     metadata:
       labels:
         app: loadgenerator
+      annotations:
+        sidecar.istio.io/rewriteAppHTTPProbers: "true"
     spec:
       terminationGracePeriodSeconds: 5
       restartPolicy: Always
-      initContainers:
-      - name: wait-frontend
-        image: alpine:3.6
-        command: ['sh', '-c', 'set -x;  apk add --no-cache curl && 
-          until timeout -t 2 curl -f "http://${FRONTEND_ADDR}"; do 
-            echo "waiting for http://${FRONTEND_ADDR}"; 
-            sleep 2;
-          done;']
-        env:
-        - name: FRONTEND_ADDR
-          value: "frontend:80"
       containers:
       - name: main
         image: loadgenerator
@@ -53,4 +43,4 @@ spec:
             memory: 256Mi
           limits:
             cpu: 500m
-            memory: 512Mi
+            memory: 512Mi