Chore(Infra-Exp): Rename azure-instance-terminate to stop and remove env from vmware engine (#471)

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

Co-authored-by: Shubham Chaudhary <shubham@chaosnative.com>

charts/azure/azure-instance-stop/azure-instance-stop.chartserviceversion.yaml

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+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  createdAt: 2021-02-20T10:28:08Z
+  name: azure-instance-stop
+  version: 0.1.0
+  annotations:
+    categories: Kubernetes
+    vendor: Chaos Native
+    support: https://app.slack.com/client/T09NY5SBT/CNXNB0ZTN
+spec:
+  displayName: azure-instance-stop
+  categoryDescription: |
+    This experiment causes the power off of an azure instance for a certain chaos duration.
+    - Causes termination of an azure instance before bringing it back to running state after the specified chaos duration.
+    - It helps to check the performance of the application on the instance. 
+  keywords:
+    - Kubernetes
+    - Azure
+    - Termination
+  platforms:
+    - Azure
+  maturity: alpha
+  chaosType: infra
+  maintainers:
+    - name: Udit Gaurav
+      email: udit@chaosnative.com
+  provider:
+    name: Chaos Native
+  labels:
+    app.kubernetes.io/component: chartserviceversion
+    app.kubernetes.io/version: latest
+  links:
+    - name: Source Code
+      url: https://github.com/litmuschaos/litmus-go/tree/azure/experiments/azure/instance-terminate/experiment
+    - name: Documentation
+      url: https://docs.litmuschaos.io/docs/azure-instance-stop/
+    - name: Video
+      url:
+  icon:
+    - url: 
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/azure/azure-instance-stop/experiment.yaml
+

charts/azure/azure-instance-stop/engine.yaml

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+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: nginx-chaos
+  namespace: default
+spec:
+  engineState: 'active'
+  chaosServiceAccount: azure-instance-stop-sa
+  experiments:
+    - name: azure-instance-stop
+      spec:
+        components:
+          env: 
+            # set chaos duration (in sec) as desired
+            - name: TOTAL_CHAOS_DURATION
+              value: '30'
+
+            # set chaos intreval (in sec) as desired
+            - name: CHAOS_INTERVAL
+              value: '30'            
+
+            # provide the target instance name
+            - name: AZURE_INSTANCE_NAME
+              value: ''
+
+            # provide the resource group of the instance
+            - name: RESOURCE_GROUP
+              value: ''
+

charts/azure/azure-instance-stop/experiment.yaml

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+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    Terminating azure VM instance
+kind: ChaosExperiment
+metadata:
+  name: azure-instance-stop
+  labels:
+    name: azure-instance-stop
+    app.kubernetes.io/part-of: litmus
+    app.kubernetes.io/component: chaosexperiment
+    app.kubernetes.io/version: latest
+spec:
+  definition:
+    scope: Cluster
+    permissions:
+      - apiGroups:
+          - ""
+          - "batch"
+          - "litmuschaos.io"
+        resources:
+          - "jobs"
+          - "pods"
+          - "events"
+          - "pods/log"
+          - "pods/exec"
+          - "secrets"
+          - "chaosengines"
+          - "chaosexperiments"
+          - "chaosresults"
+        verbs:
+          - "create"
+          - "list"
+          - "get"
+          - "patch"
+          - "update"
+          - "delete"
+    image: "litmuschaos/go-runner:ci"
+    imagePullPolicy: Always
+    args:
+    - -c
+    - ./experiments -name azure-instance-stop
+    command:
+    - /bin/bash
+    env:
+
+    - name: TOTAL_CHAOS_DURATION
+      value: '30'
+
+    - name: CHAOS_INTERVAL
+      value: '30'
+
+    # Period to wait before and after injection of chaos in sec
+    - name: RAMP_TIME
+      value: ''
+
+    # provide the target instance name
+    - name: AZURE_INSTANCE_NAME
+      value: ''
+
+    # provide the resource group of the instance
+    - name: RESOURCE_GROUP
+      value: ''
+
+    # Provide the path of aks credentials mounted from secret  
+    - name: AZURE_AUTH_LOCATION
+      value: '/tmp/azure.auth'
+
+    - name: SEQUENCE
+      value: 'parallel'       
+
+    # provide the LIB
+    # only litmus supported
+    - name: LIB
+      value: 'litmus'  
+          
+    labels:
+      name: azure-instance-stop
+      app.kubernetes.io/part-of: litmus
+      app.kubernetes.io/component: experiment-job
+      app.kubernetes.io/version: latest
+    secrets:
+    - name: cloud-secret
+      mountPath: /tmp/
+

charts/azure/azure-instance-stop/rbac.yaml

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+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: azure-instance-stop-sa
+  namespace: default
+  labels:
+    name: azure-instance-stop-sa
+    app.kubernetes.io/part-of: litmus
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: azure-instance-stop-sa
+  labels:
+    name: azure-instance-stop-sa
+    app.kubernetes.io/part-of: litmus
+rules:
+- apiGroups: [""]
+  resources: ["pods","events","secrets"]
+  verbs: ["create","list","get","patch","update","delete","deletecollection"]
+- apiGroups: [""]
+  resources: ["pods/exec","pods/log"]
+  verbs: ["create","list","get"]
+- apiGroups: ["batch"]
+  resources: ["jobs"]
+  verbs: ["create","list","get","delete","deletecollection"]
+- apiGroups: ["litmuschaos.io"]
+  resources: ["chaosengines","chaosexperiments","chaosresults"]
+  verbs: ["create","list","get","patch","update"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: azure-instance-stop-sa
+  labels:
+    name: azure-instance-stop-sa
+    app.kubernetes.io/part-of: litmus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: azure-instance-stop-sa
+subjects:
+- kind: ServiceAccount
+  name: azure-instance-stop-sa
+  namespace: default