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: <MACHINE_PORT>
						targetPort: 8065
						name: http-demorestroute
						selector:
						app : demorestroute
						---
						apiVersion: extensions/v1beta1
						kind: Deployment
						metadata:
						name: demorestroute-v1
						spec:
						replicas: 1
						template:
						metadata:
						labels:
						app : demorestroute
						version: v1
						spec:
						containers:
						- name: demorestroute
						image: <ARTIFACT_REPOSITORY_DOCKER_REGISTRY>/<STUDIO_PROJECT>/demorestroute:latest
						imagePullPolicy: IfNotPresent
						ports:
						- containerPort: 8065
						---

where

<MACHINE_PORT> corresponds to the port used to bind the host port to the container port
<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.

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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