Chore[New Exp]: Charts for HTTP Modify Body (#557)

* Added http modify body experiment charts

charts/generic/pod-http-modify-body/engine.yaml

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+apiVersion: litmuschaos.io/v1alpha1
+kind: ChaosEngine
+metadata:
+  name: nginx-chaos
+spec:
+  # It can be active/stop
+  engineState: 'active'
+  appinfo:
+    appns: 'default'
+    applabel: 'app=nginx'
+    appkind: 'deployment'
+  chaosServiceAccount: pod-http-modify-body-sa
+  experiments:
+    - name: pod-http-modify-body
+      spec:
+        components:
+          env:
+            # set chaos duration (in sec) as desired
+            - name: TOTAL_CHAOS_DURATION
+              value: '60' # in seconds
+            
+            # provide the body string to overwrite the response body
+            - name: RESPONSE_BODY
+              value: ''
+
+            # port of the target service
+            - name: TARGET_SERVICE_PORT
+              value: "80"
+
+            # provide the name of container runtime
+            # it supports docker, containerd, crio
+            - name: CONTAINER_RUNTIME
+              value: 'docker'
+
+            # provide the socket file path
+            - name: SOCKET_PATH
+              value: '/var/run/docker.sock'
+
+             ## percentage of total pods to target
+            - name: PODS_AFFECTED_PERC
+              value: ''
+              

charts/generic/pod-http-modify-body/experiment.yaml

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+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    It injects the chaos inside the pod which modifies the body of the response from the provided application server to the body string provided by the user and reverts after a specified duration
+kind: ChaosExperiment
+metadata:
+  name: pod-http-modify-body
+  labels:
+    name: pod-http-modify-body
+    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-http-modify-body
+    command:
+    - /bin/bash
+    env:
+
+    - name: TARGET_CONTAINER
+      value: ''
+
+    # provide lib image
+    - name: LIB_IMAGE
+      value: 'litmuschaos/go-runner:latest' 
+    
+    # provide the body string to overwrite the response body
+    # if no value is provided, response will be an empty body.
+    - name: RESPONSE_BODY
+      value: ''
+
+    # port of the target service
+    - name: TARGET_SERVICE_PORT
+      value: "80"
+
+    # port on which the proxy will listen
+    - name: PROXY_PORT
+      value: "20000"
+    
+    # network interface on which the proxy will listen
+    - name: NETWORK_INTERFACE
+      value: "eth0"
+
+    - name: TOTAL_CHAOS_DURATION
+      value: '60' # in seconds
+
+    # Time period to wait before and after injection of chaos in sec
+    - name: RAMP_TIME
+      value: ''
+
+    # lib can be litmus or pumba
+    - name: LIB
+      value: 'litmus'
+
+    # percentage of total pods to target
+    - name: PODS_AFFECTED_PERC
+      value: ''
+
+    - name: TARGET_PODS
+      value: ''
+
+    # provide the name of container runtime
+    # for litmus LIB, it supports docker, containerd, crio
+    # for pumba LIB, it supports docker only
+    - name: CONTAINER_RUNTIME
+      value: 'docker'
+
+    # provide the socket file path
+    - name: SOCKET_PATH
+      value: '/var/run/docker.sock'
+
+    # To select pods on specific node(s)
+    - name: NODE_LABEL
+      value: ''
+
+    ## it defines the sequence of chaos execution for multiple target pods
+    ## supported values: serial, parallel
+    - name: SEQUENCE
+      value: 'parallel'
+      
+    labels:
+      name: pod-http-modify-body
+      app.kubernetes.io/part-of: litmus
+      app.kubernetes.io/component: experiment-job
+      app.kubernetes.io/version: latest 

charts/generic/pod-http-modify-body/pod-http-modify-body.chartserviceversion.yaml

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+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  name: pod-http-modify-body 
+  version: 0.1.0
+  annotations:
+    categories: generic
+spec:
+  displayName: pod-http-modify-body 
+  categoryDescription: >
+    it injects http modify body chaos inside the pod which modifies the body of the response from the provided application server to the body string provided by user and reverts after specified duration 
+  keywords: 
+    - "pods" 
+    - "kubernetes" 
+    - "generic" 
+    - "exec" 
+    - "http" 
+    - "response body"
+  platforms: 
+    - "Minikube"
+  maturity: alpha
+  maintainers: 
+    - name: Akash Shrivastava 
+      email: akash.shrivastava@harness.io 
+  minKubeVersion: 1.12.0 
+  provider: 
+    name: Harness
+  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-http-modify-body
+    - name: Documentation
+      url: https://litmuschaos.github.io/litmus/experiments/categories/pods/pod-http-modify-body/
+  icon:
+    - base64data: ""
+      mediatype: ""
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/generic/pod-http-modify-body/experiment.yaml

charts/generic/pod-http-modify-body/rbac-psp.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: pod-http-modify-body-sa
+  namespace: default
+  labels:
+    name: pod-http-modify-body-sa
+    app.kubernetes.io/part-of: litmus
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: pod-http-modify-body-sa
+  namespace: default
+  labels:
+    name: pod-http-modify-body-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-http-modify-body-sa
+  namespace: default
+  labels:
+    name: pod-http-modify-body-sa
+    app.kubernetes.io/part-of: litmus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: pod-http-modify-body-sa
+subjects:
+- kind: ServiceAccount
+  name: pod-http-modify-body-sa
+  namespace: default

charts/generic/pod-http-modify-body/rbac.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: pod-http-modify-body-sa
+  namespace: default
+  labels:
+    name: pod-http-modify-body-sa
+    app.kubernetes.io/part-of: litmus
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: pod-http-modify-body-sa
+  namespace: default
+  labels:
+    name: pod-http-modify-body-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-http-modify-body-sa
+  namespace: default
+  labels:
+    name: pod-http-modify-body-sa
+    app.kubernetes.io/part-of: litmus
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: pod-http-modify-body-sa
+subjects:
+- kind: ServiceAccount
+  name: pod-http-modify-body-sa
+  namespace: default