feat(chart): Add charts for kubelet service kill experiment (#239)

Signed-off-by: Udit Gaurav <uditgaurav@gmail.com>

charts/generic/generic.chartserviceversion.yaml

@@ -25,6 +25,7 @@ spec:
     - disk-fill
     - node-memory-hog
     - pod-memory-hog
+    - kubelet-service-kill
 
   keywords:
     - Kubernetes

charts/generic/generic.package.yaml

@@ -36,3 +36,7 @@ experiments:
   - name: pod-memory-hog
     CSV: pod-memory-hog.chartserviceversion.yaml
     desc: "pod-memory-hog"   
+  - name: kubelet-service-kill
+    CSV: kubelet-service-kill.chartserviceversion.yaml
+    desc: "kubelet-service-kill"
+    

charts/generic/kubelet-service-kill/engine.yaml

@@ -0,0 +1,27 @@
+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: nginx-chaos
+  namespace: default
+spec:
+  # It can be true/false
+  annotationCheck: 'false'
+  # It can be active/stop
+  engineState: 'active'
+  #ex. values: ns1:name=percona,ns2:run=nginx 
+  auxiliaryAppInfo: ''
+  appinfo:
+    appns: 'default'
+    applabel: 'app=nginx'
+    appkind: 'deployment'
+  chaosServiceAccount: kubelet-service-kill-sa
+  monitoring: false
+  # It can be delete/retain
+  jobCleanUpPolicy: 'delete'
+  experiments:
+    - name: kubelet-service-kill
+      spec:
+        components:
+          env:
+            - name: TOTAL_CHAOS_DURATION
+              value: '90' # in seconds

charts/generic/kubelet-service-kill/experiment.yaml

@@ -0,0 +1,61 @@
+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    Kills the kubelet service on the application node to check the resiliency.
+kind: ChaosExperiment
+metadata:
+  name: kubelet-service-kill
+  version: 0.1.0
+spec:
+  definition:
+    scope: Cluster
+    permissions:
+      - apiGroups:
+          - ""
+          - "batch"
+          - "apps"
+          - "litmuschaos.io"
+        resources:
+          - "jobs"
+          - "pods"
+          - "pods/log"
+          - "events"
+          - "chaosengines"
+          - "chaosexperiments"
+          - "chaosresults"
+        verbs:
+          - "create"
+          - "list"
+          - "get"
+          - "patch"
+          - "update"
+          - "delete"
+      - apiGroups:
+          - ""
+        resources: 
+          - "nodes"
+        verbs:
+          - "get"
+          - "list"
+    image: "litmuschaos/ansible-runner:latest"
+    imagePullPolicy: Always
+    args:
+    - -c
+    - ansible-playbook ./experiments/generic/kubelet_service_kill/kubelet_service_kill_ansible_logic.yml -i /etc/ansible/hosts -vv; exit 0
+    command:
+    - /bin/bash
+    env:
+    - name: ANSIBLE_STDOUT_CALLBACK
+      value: 'default'
+
+    - name: TOTAL_CHAOS_DURATION
+      value: '90' # in seconds
+
+    # Period to wait before injection of chaos in sec
+    - name: RAMP_TIME
+      value: ''
+
+    - name: LIB
+      value: 'litmus'
+    labels:
+      name: kubelet-service-kill

charts/generic/kubelet-service-kill/kubelet-service-kill.chartserviceversion.yaml

@@ -0,0 +1,45 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  createdAt: 2020-06-13T10:28:08Z
+  name: kubelet-service-kill
+  version: 0.1.0
+  annotations:
+    categories: Kubernetes
+    vendor: CNCF
+    support: https://slack.kubernetes.io/
+spec:
+  displayName: kubelet-service-kill
+  categoryDescription: |
+    kubelet-service-kill contains killing kubelet service gracefully for a certain chaos duration.
+    - Causes replicas may be evicted or becomes unreachable on account on nodes turning unschedulable (Not Ready) due to kubelet service kill.
+    - The application node should be healthy once chaos is stopped and the services are reaccessable. 
+    
+  keywords:
+    - Kubernetes
+    - Kubelet
+    - Node
+    - Service
+  platforms:
+    - GKE
+    - Packet(Kubeadm)
+    - Minikube
+    - EKS
+  maturity: alpha
+  maintainers:
+    - name: Udit Gaurav
+      email: udit.gaurav@mayadata.io
+  minKubeVersion: 1.12.0
+  provider:
+    name: Mayadata
+  links:
+    - name: Source Code
+      url: https://github.com/litmuschaos/litmus/tree/master/experiments/generic/kubelet_service_kill
+    - name: Documentation
+      url: https://docs.litmuschaos.io/docs/kubelet-service-kill/
+    - name: Video
+      url: 
+  icon:
+    - base64data: ""
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/generic/kubelet-service-kill/experiment.yaml 

charts/generic/kubelet-service-kill/rbac.yaml

@@ -0,0 +1,37 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: kubelet-service-kill
+  namespace: default
+  labels:
+    name: kubelet-service-kill
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRole
+metadata:
+  name: kubelet-service-kill
+  labels:
+    name: kubelet-service-kill
+rules:
+- apiGroups: ["","litmuschaos.io","batch","apps"]
+  resources: ["pods","jobs","pods/log","events","chaosengines","chaosexperiments","chaosresults"]
+  verbs: ["create","list","get","patch","update","delete"]
+- apiGroups: [""]
+  resources: ["nodes"]
+  verbs: ["get","list"]
+---
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  name: kubelet-service-kill
+  labels:
+    name: kubelet-service-kill
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: kubelet-service-kill
+subjects:
+- kind: ServiceAccount
+  name: kubelet-service-kill
+  namespace: default

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

@@ -31,7 +31,7 @@ spec:
             # Enter the amount of memory in megabytes to be consumed by the application pod
             # default: 500 (Megabytes) 
             - name: MEMORY_CONSUMPTION
-              value: ''
+              value: '500'
 
             - name: TOTAL_CHAOS_DURATION
               value: '60' # in seconds