replaces default container runtime to containerd (#587)

Signed-off-by: neelanjan00 <neelanjan.manna@harness.io>

charts/generic/pod-network-loss/engine.yaml

@@ -28,11 +28,11 @@ spec:
             # for litmus LIB, it supports docker, containerd, crio
             # for pumba LIB, it supports docker only
             - name: CONTAINER_RUNTIME
-              value: 'docker'
+              value: 'containerd'
 
             # provide the socket file path
             - name: SOCKET_PATH
-              value: '/var/run/docker.sock'
+              value: '/run/containerd/containerd.sock'
             
             ## percentage of total pods to target
             - name: PODS_AFFECTED_PERC

charts/generic/pod-network-loss/experiment.yaml

@@ -105,7 +105,7 @@ spec:
     # for litmus LIB, it supports docker, containerd, crio
     # for pumba LIB, it supports docker only
     - name: CONTAINER_RUNTIME
-      value: 'docker'
+      value: 'containerd'
 
     # provide the destination ips
     # chaos injection will be triggered for these destination ips
@@ -119,7 +119,7 @@ spec:
 
     # provide the socket file path
     - name: SOCKET_PATH
-      value: '/var/run/docker.sock'
+      value: '/run/containerd/containerd.sock'
 
     ## it defines the sequence of chaos execution for multiple target pods
     ## supported values: serial, parallel