Deploy DebugContainer to Kubernetes

For a test of the DebugContainer on a Kubernetes cluster, I have created a corresponding deployment file. It sets up the same environment as described in Debug Container for simple Tests/Analyzing and is located here: k8s_deployment.yaml.

The green service is public accessible (type: LoadBalancer) and thus the only entry point for the other conatins (type: ClusterIP). In addition, it is very nice that the calls are made directly over the service name and not cumbersome over IP addresses, as with the local Docker. The four configuration sections are marked in color.

---
apiVersion: v1
kind: Namespace
metadata:
  name: dbg-container
  labels:
    istio-injection: enabled
---
#docker run -p 8080:80 -e COLOR=green -e CASCADECONFIG='[{"ip":"172.17.0.4","port":"80","path":"/api/cascade"}]' tzuehlke/dbgc
apiVersion: v1
kind: Service
metadata:
  name: green
  namespace: dbg-container
spec:
  selector:
    app: green-dbg
  type: LoadBalancer
  ports:
   - port: 80
     name: http
     targetPort: 80
     protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: greendpl
  namespace: dbg-container
spec:
  replicas: 1
  selector:
    matchLabels:
      app: green-dbg
  template:
    metadata:
      labels:
        app: green-dbg
    spec:
      containers:
      - name: green-cont
        image: tzuehlke/dbgc:latest
        ports:
          - containerPort: 80
            name: http         
            protocol: TCP
        env:
          - name: "COLOR"
            value: "green"
          - name: "CASCADECONFIG"
            value: '[{"ip":"yellow","port":"80","path":"/api/cascade"}]'
---
#docker run -p 8081:80 -e COLOR=yellow -e CASCADECONFIG='[{"ip":"172.17.0.2","port":"80","path":"/"},{"ip":"172.17.0.3", "port":"80", "path":"/ping"}]' tzuehlke/dbgc
apiVersion: v1
kind: Service
metadata:
  name: yellow
  namespace: dbg-container
spec:
  selector:
    app: yellow-dbg
  type: ClusterIP
  ports:
   - port: 80
     name: http
     targetPort: 80
     protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: yellowdpl
  namespace: dbg-container
spec:
  replicas: 1
  selector:
    matchLabels:
      app: yellow-dbg
  template:
    metadata:
      labels:
        app: yellow-dbg
    spec:
      containers:
      - name: yellow-cont
        image: tzuehlke/dbgc:latest
        ports:
          - containerPort: 80
            name: http         
            protocol: TCP
        env:
          - name: "COLOR"
            value: "yellow"
          - name: "CASCADECONFIG"
            value: '[{"ip":"red","port":"80","path":"/"},{"ip":"tomato", "port":"80", "path":"/ping"}]'
---
#docker run -p 8082:80 -e COLOR=tomato -e ERRORRATE=8 -e ERRORCODE=404 tzuehlke/dbgc
apiVersion: v1
kind: Service
metadata:
  name: tomato
  namespace: dbg-container
spec:
  selector:
    app: tomato-dbg
  type: ClusterIP
  ports:
   - port: 80
     name: http
     targetPort: 80
     protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: tomatodpl
  namespace: dbg-container
spec:
  replicas: 1
  selector:
    matchLabels:
      app: tomato-dbg
  template:
    metadata:
      labels:
        app: tomato-dbg
    spec:
      containers:
      - name: tomato-cont
        image: tzuehlke/dbgc:latest
        ports:
          - containerPort: 80
            name: http         
            protocol: TCP
        env:
          - name: "COLOR"
            value: "tomato"
          - name: "ERRORRATE"
            value: "8"              
          - name: "ERRORCODE"
            value: "404"
---
#docker run -p 8083:80 -e COLOR=red -e ERRORRATE=4 -e ERRORCODE=405 tzuehlke/dbgc
apiVersion: v1
kind: Service
metadata:
  name: red
  namespace: dbg-container
spec:
  selector:
    app: red-dbg
  type: ClusterIP
  ports:
   - port: 80
     name: http
     targetPort: 80
     protocol: TCP
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: reddpl
  namespace: dbg-container
spec:
  replicas: 1
  selector:
    matchLabels:
      app: red-dbg
  template:
    metadata:
      labels:
        app: red-dbg
    spec:
      containers:
      - name: red-cont
        image: tzuehlke/dbgc:latest
        ports:
          - containerPort: 80
            name: http         
            protocol: TCP
        env:
          - name: "COLOR"
            value: "red"
          - name: "ERRORRATE"
            value: "4"
          - name: "ERRORCODE"
            value: "405"