chore(env): Adding required env inside chaosengine (#479)

Signed-off-by: shubhamchaudhary <shubham@chaosnative.com>

charts/generic/pod-memory-hog/engine.yaml

@@ -16,12 +16,21 @@ spec:
       spec:
         components:
           env:
+            - name: TOTAL_CHAOS_DURATION
+              value: '60' # in seconds
+
             # Enter the amount of memory in megabytes to be consumed by the application pod
             - name: MEMORY_CONSUMPTION
               value: '500'
 
-            - name: NUMBER_OF_WORKERS
-              value: '1'              
+             ## percentage of total pods to target
+            - name: PODS_AFFECTED_PERC
+              value: ''   
 
-            - name: TOTAL_CHAOS_DURATION
-              value: '60' # in seconds
+            ## provide the cluster runtime
+            - name: CONTAINER_RUNTIME
+              value: 'docker'   
+
+            # provide the socket file path
+            - name: SOCKET_PATH
+              value: '/var/run/docker.sock'              

charts/generic/pod-memory-hog/experiment.yaml

@@ -86,8 +86,11 @@ spec:
       - name: STRESS_IMAGE
         value: 'alexeiled/stress-ng:latest-ubuntu'
 
+      ## provide the cluster runtime
+      - name: CONTAINER_RUNTIME
+        value: 'docker'   
+
       # provide the socket file path
-      # it is used in pumba lib
       - name: SOCKET_PATH
         value: '/var/run/docker.sock'