Directory restructure to add scenarios and experiments (#559)

* Updated dir struture with scenarios and experiments dir

Signed-off-by: Amit Kumar Das <amit.das@harness.io>

* Added icons

Signed-off-by: Amit Kumar Das <amit.das@harness.io>

experiments/generic/pod-cpu-hog-exec/engine.yaml

@@ -0,0 +1,30 @@
+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: nginx-chaos
+  namespace: default
+spec:
+  # It can be active/stop
+  engineState: 'active'
+  appinfo:
+    appns: 'default'
+    applabel: 'app=nginx'
+    appkind: 'deployment'
+  chaosServiceAccount: pod-cpu-hog-exec-sa
+  experiments:
+    - name: pod-cpu-hog-exec
+      spec:
+        components:
+          env:
+            - name: TOTAL_CHAOS_DURATION
+              value: '60' # in seconds
+
+            #number of cpu cores to be consumed
+            #verify the resources the app has been launched with
+            - name: CPU_CORES
+              value: '1'
+
+             ## Percentage of total pods to target
+            - name: PODS_AFFECTED_PERC
+              value: ''    
+                      

experiments/generic/pod-cpu-hog-exec/experiment.yaml

@@ -0,0 +1,105 @@
+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    Injects cpu consumption on pods belonging to an app deployment
+kind: ChaosExperiment
+metadata:
+  name: pod-cpu-hog-exec
+  labels:
+    name: pod-cpu-hog-exec
+    app.kubernetes.io/part-of: litmus
+    app.kubernetes.io/component: chaosexperiment
+    app.kubernetes.io/version: latest
+spec:
+  definition:
+    scope: Namespaced
+    permissions:
+      # Create and monitor the experiment & helper pods
+      - apiGroups: [""]
+        resources: ["pods"]
+        verbs: ["create","delete","get","list","patch","update", "deletecollection"]
+      # Performs CRUD operations on the events inside chaosengine and chaosresult
+      - apiGroups: [""]
+        resources: ["events"]
+        verbs: ["create","get","list","patch","update"]
+      # Fetch configmaps details and mount it to the experiment pod (if specified)
+      - apiGroups: [""]
+        resources: ["configmaps"]
+        verbs: ["get","list",]
+      # Track and get the runner, experiment, and helper pods log 
+      - apiGroups: [""]
+        resources: ["pods/log"]
+        verbs: ["get","list","watch"]  
+      # for creating and managing to execute comands inside target container
+      - apiGroups: [""]
+        resources: ["pods/exec"]
+        verbs: ["get","list","create"]
+      # deriving the parent/owner details of the pod(if parent is anyof {deployment, statefulset, daemonsets})
+      - apiGroups: ["apps"]
+        resources: ["deployments","statefulsets","replicasets", "daemonsets"]
+        verbs: ["list","get"]
+      # deriving the parent/owner details of the pod(if parent is deploymentConfig)  
+      - apiGroups: ["apps.openshift.io"]
+        resources: ["deploymentconfigs"]
+        verbs: ["list","get"]
+      # deriving the parent/owner details of the pod(if parent is deploymentConfig)
+      - apiGroups: [""]
+        resources: ["replicationcontrollers"]
+        verbs: ["get","list"]
+      # deriving the parent/owner details of the pod(if parent is argo-rollouts)
+      - apiGroups: ["argoproj.io"]
+        resources: ["rollouts"]
+        verbs: ["list","get"]
+      # for configuring and monitor the experiment job by the chaos-runner pod
+      - apiGroups: ["batch"]
+        resources: ["jobs"]
+        verbs: ["create","list","get","delete","deletecollection"]
+      # for creation, status polling and deletion of litmus chaos resources used within a chaos workflow
+      - apiGroups: ["litmuschaos.io"]
+        resources: ["chaosengines","chaosexperiments","chaosresults"]
+        verbs: ["create","list","get","patch","update","delete"]
+    image: "litmuschaos/go-runner:latest"
+    imagePullPolicy: Always
+    args:
+    - -c
+    - ./experiments -name pod-cpu-hog-exec
+    command:
+    - /bin/bash
+    env:
+    - name: TOTAL_CHAOS_DURATION
+      value: '60'
+
+    ## Number of CPU cores to stress
+    - name: CPU_CORES
+      value: '1'
+
+    ## Percentage of total pods to target
+    - name: PODS_AFFECTED_PERC
+      value: ''
+
+    ## Period to wait before and after injection of chaos in sec
+    - name: RAMP_TIME
+      value: ''
+
+    ## env var that describes the library used to execute the chaos
+    ## default: litmus. Supported values: litmus    
+    - name: LIB
+      value: 'litmus'
+    
+    # The command to kill the chaos process
+    - name: CHAOS_KILL_COMMAND
+      value: "kill $(find /proc -name exe -lname '*/md5sum' 2>&1 | grep -v 'Permission denied' | awk -F/ '{print $(NF-1)}')"
+
+    - name: TARGET_PODS
+      value: ''
+
+    ## it defines the sequence of chaos execution for multiple target pods
+    ## supported values: serial, parallel
+    - name: SEQUENCE
+      value: 'parallel'
+      
+    labels:
+      name: pod-cpu-hog-exec
+      app.kubernetes.io/part-of: litmus
+      app.kubernetes.io/component: experiment-job
+      app.kubernetes.io/version: latest

experiments/generic/pod-cpu-hog-exec/pod-cpu-hog-exec.chartserviceversion.yaml

@@ -0,0 +1,51 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  createdAt: 2021-06-16T10:28:08Z
+  name: pod-cpu-hog-exec
+  version: 0.1.0
+  annotations:
+    categories: Kubernetes
+    vendor: CNCF
+    support: https://slack.kubernetes.io/
+spec:
+  displayName: pod-cpu-hog-exec
+  categoryDescription: |
+    pod-cpu-hog-exec contains chaos to consume CPU resouces of specified containers in Kubernetes pods.  
+    - Causes high CPU resource consumption utilizing one or more cores by triggering md5sum commands
+    - The application pod should be healthy once chaos is stopped. Expectation is that service-requests should be served despite chaos.
+  keywords:
+    - Kubernetes
+    - K8S
+    - CPU
+    - Pod
+    - Exec
+    - Stress
+  platforms:
+    - GKE
+    - Packet(Kubeadm)
+    - Minikube
+    - EKS
+    - AKS
+    - Kind
+  maturity: alpha
+  maintainers:
+    - name: ksatchit
+      email: karthik@chaosnative.com
+  minKubeVersion: 1.12.0
+  provider:
+    name: ChaosNative
+  labels:
+    app.kubernetes.io/component: chartserviceversion
+    app.kubernetes.io/version: latest
+  links:
+    - name: Source Code
+      url: https://github.com/litmuschaos/litmus-go/tree/master/experiments/generic/pod-cpu-hog-exec
+    - name: Documentation
+      url: https://litmuschaos.github.io/litmus/experiments/categories/pods/pod-cpu-hog-exec/
+    - name: Video
+      url: https://www.youtube.com/watch?v=MBGSPmZKb2I
+  icon:
+    - base64data: ""
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/generic/pod-cpu-hog-exec/experiment.yaml 

experiments/generic/pod-cpu-hog-exec/rbac-psp.yaml

@@ -0,0 +1,85 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: pod-cpu-hog-exec-sa
+  namespace: default
+  labels:
+    name: pod-cpu-hog-exec-sa
+    app.kubernetes.io/part-of: litmus
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: pod-cpu-hog-exec-sa
+  namespace: default
+  labels:
+    name: pod-cpu-hog-exec-sa
+    app.kubernetes.io/part-of: litmus
+rules:
+  # Create and monitor the experiment & helper pods
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["create","delete","get","list","patch","update", "deletecollection"]
+  # Performs CRUD operations on the events inside chaosengine and chaosresult
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["create","get","list","patch","update"]
+  # Fetch configmaps details and mount it to the experiment pod (if specified)
+  - apiGroups: [""]
+    resources: ["configmaps"]
+    verbs: ["get","list",]
+  # Track and get the runner, experiment, and helper pods log 
+  - apiGroups: [""]
+    resources: ["pods/log"]
+    verbs: ["get","list","watch"]  
+  # for creating and managing to execute comands inside target container
+  - apiGroups: [""]
+    resources: ["pods/exec"]
+    verbs: ["get","list","create"]
+  # deriving the parent/owner details of the pod(if parent is anyof {deployment, statefulset, daemonsets})
+  - apiGroups: ["apps"]
+    resources: ["deployments","statefulsets","replicasets", "daemonsets"]
+    verbs: ["list","get"]
+  # deriving the parent/owner details of the pod(if parent is deploymentConfig)  
+  - apiGroups: ["apps.openshift.io"]
+    resources: ["deploymentconfigs"]
+    verbs: ["list","get"]
+  # deriving the parent/owner details of the pod(if parent is deploymentConfig)
+  - apiGroups: [""]
+    resources: ["replicationcontrollers"]
+    verbs: ["get","list"]
+  # deriving the parent/owner details of the pod(if parent is argo-rollouts)
+  - apiGroups: ["argoproj.io"]
+    resources: ["rollouts"]
+    verbs: ["list","get"]
+  # for configuring and monitor the experiment job by the chaos-runner pod
+  - apiGroups: ["batch"]
+    resources: ["jobs"]
+    verbs: ["create","list","get","delete","deletecollection"]
+  # for creation, status polling and deletion of litmus chaos resources used within a chaos workflow
+  - apiGroups: ["litmuschaos.io"]
+    resources: ["chaosengines","chaosexperiments","chaosresults"]
+    verbs: ["create","list","get","patch","update","delete"]
+  # use litmus psp
+  - apiGroups: ["policy"]
+    resources: ["podsecuritypolicies"]
+    verbs: ["use"]
+    resourceNames: ["litmus"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: pod-cpu-hog-exec-sa
+  namespace: default
+  labels:
+    name: pod-cpu-hog-exec-sa
+    app.kubernetes.io/part-of: litmus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: pod-cpu-hog-exec-sa
+subjects:
+- kind: ServiceAccount
+  name: pod-cpu-hog-exec-sa
+  namespace: default

experiments/generic/pod-cpu-hog-exec/rbac.yaml

@@ -0,0 +1,80 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: pod-cpu-hog-exec-sa
+  namespace: default
+  labels:
+    name: pod-cpu-hog-exec-sa
+    app.kubernetes.io/part-of: litmus
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: pod-cpu-hog-exec-sa
+  namespace: default
+  labels:
+    name: pod-cpu-hog-exec-sa
+    app.kubernetes.io/part-of: litmus
+rules:
+  # Create and monitor the experiment & helper pods
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs: ["create","delete","get","list","patch","update", "deletecollection"]
+  # Performs CRUD operations on the events inside chaosengine and chaosresult
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["create","get","list","patch","update"]
+  # Fetch configmaps details and mount it to the experiment pod (if specified)
+  - apiGroups: [""]
+    resources: ["configmaps"]
+    verbs: ["get","list",]
+  # Track and get the runner, experiment, and helper pods log 
+  - apiGroups: [""]
+    resources: ["pods/log"]
+    verbs: ["get","list","watch"]  
+  # for creating and managing to execute comands inside target container
+  - apiGroups: [""]
+    resources: ["pods/exec"]
+    verbs: ["get","list","create"]
+  # deriving the parent/owner details of the pod(if parent is anyof {deployment, statefulset, daemonsets})
+  - apiGroups: ["apps"]
+    resources: ["deployments","statefulsets","replicasets", "daemonsets"]
+    verbs: ["list","get"]
+  # deriving the parent/owner details of the pod(if parent is deploymentConfig)  
+  - apiGroups: ["apps.openshift.io"]
+    resources: ["deploymentconfigs"]
+    verbs: ["list","get"]
+  # deriving the parent/owner details of the pod(if parent is deploymentConfig)
+  - apiGroups: [""]
+    resources: ["replicationcontrollers"]
+    verbs: ["get","list"]
+  # deriving the parent/owner details of the pod(if parent is argo-rollouts)
+  - apiGroups: ["argoproj.io"]
+    resources: ["rollouts"]
+    verbs: ["list","get"]
+  # for configuring and monitor the experiment job by the chaos-runner pod
+  - apiGroups: ["batch"]
+    resources: ["jobs"]
+    verbs: ["create","list","get","delete","deletecollection"]
+  # for creation, status polling and deletion of litmus chaos resources used within a chaos workflow
+  - apiGroups: ["litmuschaos.io"]
+    resources: ["chaosengines","chaosexperiments","chaosresults"]
+    verbs: ["create","list","get","patch","update","delete"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: pod-cpu-hog-exec-sa
+  namespace: default
+  labels:
+    name: pod-cpu-hog-exec-sa
+    app.kubernetes.io/part-of: litmus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: pod-cpu-hog-exec-sa
+subjects:
+- kind: ServiceAccount
+  name: pod-cpu-hog-exec-sa
+  namespace: default