Chore(ec2): Update rbac permission and add managed nodegroup (#425)

Signed-off-by: udit <udit@chaosnative.com>

Co-authored-by: udit <udit@chaosnative.com>

charts/kube-aws/ec2-terminate/engine.yaml

@@ -26,4 +26,8 @@ spec:
               
             # provide the region name of the instace
             - name: REGION
-              value: ''
+              value: ''
+
+            # enable it if the target instance is a part of self-managed nodegroup.
+            - name: MANAGED_NODEGROUP
+              value: 'disable'              

charts/kube-aws/ec2-terminate/experiment.yaml

@@ -50,6 +50,10 @@ spec:
     - name: RAMP_TIME
       value: ''
 
+    # enable it if the target instance is a part of self-managed nodegroup.
+    - name: MANAGED_NODEGROUP
+      value: 'disable'      
+
     - name: EC2_INSTANCE_ID
       value: ''
 

charts/kube-aws/ec2-terminate/rbac.yaml

@@ -28,6 +28,9 @@ rules:
 - apiGroups: ["litmuschaos.io"]
   resources: ["chaosengines","chaosexperiments","chaosresults"]
   verbs: ["create","list","get","patch","update"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["patch","get","list"]
 ---
 apiVersion: rbac.authorization.k8s.io/v1
 kind: ClusterRoleBinding