PEER-244,245: Add CORS for frontend pod

Signed-off-by: SeeuSim <[email protected]>

Author: SeeuSim

k8s/04-match-svc-deployment.yaml

@@ -42,8 +42,7 @@ spec:
             - /bin/sh
             - -c
             - |
-              # until REDISCLI_AUTH="$MATCHING_DB_PASSWORD" redis-cli -h match-db --user "$MATCHING_DB_USER" ping; do
-              until redis-cli -h match-db ping; do
+              until REDISCLI_AUTH="$MATCHING_DB_PASSWORD" redis-cli -h "$MATCHING_DB_HOST" --user "$MATCHING_DB_USERNAME" ping; do
                 echo "Waiting for Redis to be ready..."
                 sleep 1
               done
@@ -61,6 +60,8 @@ spec:
               value: match-db
             - name: MATCHING_DB_PORT
               value: "6379"
+            - name: PEERPREP_UI_HOST
+              value: http://frontend:3000
           livenessProbe:
             exec:
               command:

k8s/04-question-svc-deployment.yaml

@@ -69,8 +69,11 @@ spec:
           - secretRef: 
               name: question-secret
           env:
+            # When load testing, it exposes port 80 by default.
             - name: LOAD_TEST_POD
               value: http://question-service-load-test
+            - name: PEERPREP_UI_HOST
+              value: http://frontend
           livenessProbe:
             exec:
               command:

k8s/04-user-svc-deployment.yaml

@@ -63,15 +63,19 @@ spec:
       
       containers:
         - name: user-express
+          # TODO: Switch back to :latest once we merge to main branch
           # image: ay2425s1cs3219g16/user-express:main
           image: ay2425s1cs3219g16/user-express:sha-ff94455
           imagePullPolicy: IfNotPresent
           envFrom:
           - secretRef: 
               name: user-secret
           env:
+            # When load testing, it exposes port 80 by default.
             - name: LOAD_TEST_POD
               value: http://user-service-load-test
+            - name: PEERPREP_UI_HOST
+              value: http://frontend:3000
           livenessProbe:
             exec:
               command: