(feat): Adding coredns experiment charts (#82)

* adding coredns pod delete experiment chart

Signed-off-by: Raj <raj.das@mayadata.io>

charts/coredns/coredns-pod-delete/coredns-pod-delete.chartserviceversion.yaml

@@ -0,0 +1,40 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  name: coredns-pod-delete
+  version: 0.1.0
+  annotations:
+    categories: CoreDNS
+    vendor: CNCF
+    createdAt: 2019-12-27T10:28:08Z
+    support: https://slack.cncf.io/
+spec:
+  displayName: coredns-pod-delete
+  categoryDescription: |
+    Pod delete contains chaos to disrupt state of coredns resources. Experiments can inject random pod delete failures against specified application.
+    - Causes (forced/graceful) pod failure of coredns replicas of an application deployment.
+    - Tests of successful resolution of app services during chaos injection
+  keywords:
+    - Kubernetes
+    - CoreDNS
+    - Pod delete 
+  platforms:
+    - GKE
+    - Minikube
+  maturity: alpha
+  maintainers:
+    - name: Raj Babu Das
+      email: raj.das@mayadata.io
+  minKubeVersion: 1.12.0
+  provider:
+    name: Mayadata
+  links:
+    - name: CoreDNS Website
+      url: https://coredns.io
+    - name: Source Code
+      url: https://github.com/coredns/coredns
+    - name: CoreDNS Slack
+      url: https://slack.cncf.io/
+    - name: Documentation
+      url: https://coredns.io/manual/toc/
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuchaos/chaos-charts/master/charts/coredns/coredns-pod-delete/experiment.yaml

charts/coredns/coredns-pod-delete/experiment.yaml

@@ -0,0 +1,50 @@
+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    Deletes coredns pod in kube-system namespace
+kind: ChaosExperiment
+metadata:
+  name: coredns-pod-delete
+  version: 0.1.0
+spec:
+  definition:
+    permissions:
+      apiGroups:
+        - ""
+        - "extensions"
+        - "apps"
+        - "batch"
+        - "litmuschaos.io"
+      resources:
+        - "daemonsets"
+        - "jobs"
+        - "pods"
+        - "chaosengines"
+        - "chaosexperiments"
+        - "chaosresults"
+      verbs:
+        - "*"
+    image: "litmuschaos/ansible-runner:ci"
+    args:
+    - -c
+    - ansible-playbook ./experiments/coredns/pod_delete/pod_delete_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: '15'
+
+    - name: FORCE
+      value: 'true'
+
+    - name: CHAOS_INTERVAL
+      value: '5'
+
+    - name: LIB
+      value: ''    
+    labels:
+      name: coredns-pod-delete

charts/coredns/coredns.chartserviceversion.yaml

@@ -0,0 +1,42 @@
+apiVersion: litmuchaos.io/v1alpha1
+kind: ChartServiceVersion
+metadata:
+  name: coredns
+  version: 0.1.0
+  annotations:
+    categories: Kubernetes
+    chartDescription: Injects coredns chaos 
+spec:
+  displayName: CoreDNS chaos
+  categoryDescription: >
+    CoreDNS is an open-source system for dns management of containerized applications.
+    It helps to resolve services to IP address. It will install all the experiments which can be used to inject chaos into containerized appications.
+
+  experiments:
+    - coredns-pod-delete
+
+  keywords:
+    - Kubernetes
+    - Container
+    - node
+    - pod
+    - DNS
+  maintainers:
+    - name: Raj Babu Das
+      email: raj.das@mayadata.io
+  minKubeVersion: 1.12.0
+  provider:
+    name: Mayadata
+  links:
+    - name: CoreDNS Website
+      url: https://coredns.io
+    - name: Source Code
+      url: https://github.com/coredns/coredns
+    - name: CoreDNS Slack
+      url: https://slack.cncf.io/
+    - name: Documentation
+      url: https://coredns.io/manual/toc/
+  icon:
+    - url: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/coredns/icons/coredns-pod-delete.png
+      mediatype: image/png
+  chaosexpcrdlink: https://raw.githubusercontent.com/litmuschaos/chaos-charts/master/charts/coredns/experiments.yaml

charts/coredns/coredns.package.yaml

@@ -0,0 +1,5 @@
+packageName: coredns 
+experiments:
+  - name: coredns-pod-delete
+    CSV: coredns-pod-delete.chartserviceversion.yaml
+    desc: "coredns pod delete experiment"

charts/coredns/experiments.yaml

@@ -0,0 +1,51 @@
+apiVersion: litmuschaos.io/v1alpha1
+description:
+  message: |
+    Deletes coredns pod in kube-system namespace
+kind: ChaosExperiment
+metadata:
+  name: coredns-pod-delete
+  version: 0.1.0
+spec:
+  definition:
+    permissions:
+      apiGroups:
+        - ""
+        - "extensions"
+        - "apps"
+        - "batch"
+        - "litmuschaos.io"
+      resources:
+        - "daemonsets"
+        - "jobs"
+        - "pods"
+        - "chaosengines"
+        - "chaosexperiments"
+        - "chaosresults"
+      verbs:
+        - "*"
+    image: "litmuschaos/ansible-runner:ci"
+    args:
+    - -c
+    - ansible-playbook ./experiments/coredns/pod_delete/pod_delete_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: '15'
+
+    - name: FORCE
+      value: 'true'
+
+    - name: CHAOS_INTERVAL
+      value: '5'
+
+    - name: LIB
+      value: ''    
+    labels:
+      name: coredns-pod-delete
+---

charts/generic/generic.chartserviceversion.yaml

@@ -9,7 +9,7 @@ metadata:
 spec:
   displayName: Generic Chaos
   categoryDescription: >
-    Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery. Install will all the experiments which can be used to inject chaos into containerized appications.
+    Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It groups containers that make up an application into logical units for easy management and discovery. It will install all the experiments which can be used to inject chaos into containerized appications.
 
   experiments:
     - pod-network-loss