Executing ESB artifacts on Kubernetes

Before you begin

Make sure you have a Kubernetes cluster configured and running.

Procedure

Create a demorestroute.yaml configuration file as follows to deploy the DemoRESTRoute artifact.

# Kubernetes DemoRESTRoute deployment
apiVersion: v1
kind: Service
metadata:
  name: demorestroute
  labels:
    app: demorestroute
spec:
  ports:
    - port: 8065
      targetPort: 8065
      name: http-demorestroute
  selector:
    app: demorestroute
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: demorestroute
spec:
  replicas: 1
  selector:
    matchLabels:
      app: demorestroute
  template:
    metadata:
      labels:
        app: demorestroute
#        version: v1
    spec:
      containers:
      - name: demorestroute
        image: <ARTIFACT_REPOSITORY_DOCKER_REGISTRY>/<STUDIO_PROJECT>/demorestroute:latest
        imagePullPolicy: IfNotPresent
        args: 
          - "--name=1111"
        ports:
        - containerPort: 8065
---

where

<ARTIFACT_REPOSITORY_DOCKER_REGISTRY> corresponds to the host of the URL of the artifact repository Docker registry (Nexus, Artifactory)
<STUDIO_PROJECT> corresponds to the Talend Studio project name that is the same as the Git project name. Project names must be in upper case.
```
args: 
  - "--name=1111"
```
corresponds to the Docker or Kubernetes context parameters that can be changed according to your deployment needs. This way of calling context parameters for Docker and Kubernetes is different from the one used for other types of context parameters (see Changing context parameters in Jobs and Routes).

Execute the kubectl apply -f demorestroute.yaml command to deploy the artifact to Kubernetes.

Example

$ kubectl apply -f demorestroute.yaml
		service/demorestroute created
		deployment.extensions/demorestroute-v1 created

Execute the kubectl get po command to check that the Kubernetes pod is up and running.

Example

$ kubectl get po
NAME                                READY   STATUS    RESTARTS   AGE
demorestroute-v1-6c4dc67648-z6zh7   1/1     Running   0          8s

Access the endpoint in a browser, an XML document is returned.
Example
http://localhost:<MACHINE_PORT>/services/customers
Execute the kubectl delete -f demorestroute.yaml command to clean the Kubernetes pod after deploying the artifact.
Example
```
$ kubectl delete -f demorestroute.yaml
service "demorestroute" deleted
deployment.extensions "demorestroute-v1" deleted
```

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