feat(node-taint): Adding the node taint experiment (#258)

Signed-off-by: shubhamchaudhary <shubham.chaudhary@mayadata.io>

charts/generic/generic.chartserviceversion.yaml

@@ -27,7 +27,7 @@ spec:
     - pod-memory-hog
     - kubelet-service-kill
     - pod-network-duplication
-    
+    - node-taint
     
   keywords:
     - Kubernetes

charts/generic/generic.package.yaml

@@ -42,3 +42,6 @@ experiments:
   - name: pod-network-duplication
     CSV: pod-network-duplication.chartserviceversion.yaml
     desc: "pod-network-duplication" 
+  - name: node-taint
+    CSV: node-taint.chartserviceversion.yaml
+    desc: "node-taint"    

charts/generic/node-taint/engine.yaml

@@ -0,0 +1,32 @@
+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: node-taint-sa
+  monitoring: false
+  # It can be delete/retain
+  jobCleanUpPolicy: 'delete'
+  experiments:
+    - name: node-taint
+      spec:
+        components:
+          env:
+            # set node name
+            - name: APP_NODE
+              value: 'node-1'
+             # set taint label & effect
+             # key=value:effect or key:effect
+            - name: TAINTS
+              value: 'node.kubernetes.io/unreachable:NoExecute'

charts/generic/node-taint/experiment.yaml

@@ -0,0 +1,74 @@
+---
+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    Taint the node where application pod is scheduled
+kind: ChaosExperiment
+metadata:
+  name: node-taint
+  version: 0.1.0
+spec:
+  definition:
+    scope: Cluster
+    permissions:
+      - apiGroups:
+          - ""
+          - "batch"
+          - "extensions"
+          - "litmuschaos.io"
+        resources:
+          - "jobs"
+          - "pods"
+          - "events"
+          - "pods/log"
+          - "daemonsets"
+          - "pods/eviction"
+          - "chaosengines"
+          - "chaosexperiments"
+          - "chaosresults"
+        verbs:
+          - "create"
+          - "list"
+          - "get"
+          - "patch"
+          - "update"
+          - "delete"
+      - apiGroups:
+          - ""
+        resources: 
+          - "nodes"
+        verbs:
+          - "get"
+          - "list"
+          - "patch"
+    image: "litmuschaos/go-runner:latest"
+    imagePullPolicy: Always
+    args:
+    - -c
+    - ./experiments/node-taint
+    command:
+    - /bin/bash
+    env:
+
+    - name: APP_NODE
+      value: ''
+
+    - name: TOTAL_CHAOS_DURATION
+      value: '60'
+
+    # Provide the LIB here
+    # Only litmus supported
+    - name: LIB
+      value: 'litmus'
+
+    # Period to wait before and after injection of chaos in sec
+    - name: RAMP_TIME
+      value: ''
+
+    # set taint label & effect
+    # key=value:effect or key:effect
+    - name: TAINTS
+      value: '' 
+
+    labels:
+      name: node-taint

charts/generic/node-taint/node-taint.chartserviceversion.yaml

@@ -0,0 +1,45 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  createdAt: 2019-01-13T10:28:08Z
+  name: node-taint
+  version: 0.1.0
+  annotations:
+    categories: Kubernetes
+    vendor: Mayadata
+    repository: https://github.com/litmuschaos/chaos-charts
+    support: https://app.slack.com/client/T09NY5SBT/CNXNB0ZTN
+spec:
+  displayName: node-taint
+  categoryDescription: >
+    Taint the node where application pod is scheduled
+  keywords:
+    - Kubernetes
+    - Node 
+    - State
+    - Taint
+  platforms:
+    - GKE
+    - AWS(KOPS)
+    - Packet(Kubeadm)
+    - Konvoy
+    - EKS
+  maturity: alpha
+  chaosType: infra
+  maintainers:
+    - name: shubham chaudhary
+      email: shubham.chaudhary@mayadata.io
+  minKubeVersion: 1.12.0
+  provider:
+    name: Mayadata
+  links:
+    - name: Source Code
+      url: https://github.com/litmuschaos/litmus-go/tree/master/experiments/generic/node-taint
+    - name: Documentation
+      url: https://docs.litmuschaos.io/docs/node-taint/
+    - name: Video
+      url:
+  icon:
+    - url: ""
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/generic/node-taint/experiment.yaml

charts/generic/node-taint/rbac.yaml

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