CSC Cloud — Using CSC Cloud

Deploying Containerized Applications

DeploymentConfig

• Create a DeploymentConfig that will spawn a pod running image openshift/hello-openshift.
  Name it hello-openshift and label it app: hello-openshift.
  Create only one replicas.
  Apply the same label app: hello-openshift to the pods to be spawned as well.

• Go to Workloads > DeploymentConfig and click Create Deployment Config:
  

  Paste this code:

  apiVersion: apps.openshift.io/v1
  kind: DeploymentConfig
  metadata:
    labels:
      app: hello-openshift
    name: hello-openshift
    namespace: rahtidemotests # Must match your namespace / project name
  spec:
    selector:
      app: hello-openshift
    replicas: 1
    template:
      metadata:
        labels:
          app: hello-openshift
      spec:
        containers:
        - name: hello-openshift
          image: openshift/hello-openshift
          ports:
          - containerPort: 8080
  

• Click create

• You should see one pod running if you check the Pods tab in your Deployment Config:

Service

• Create a Service object that will redirect traffic internally to the pod.

• Go to Networking > Services and click Create Service:

Paste this code:

kind: Service
apiVersion: v1
metadata:
  name: example-svc
  namespace: rahtidemotests # Must match your namespace / project name
spec:
  selector:
    app: hello-openshift # Must match your DeploymentConfig name
  ports:
    - name: 8080-tcp
      protocol: TCP
      port: 8080
      targetPort: 8080
    - name: 8888-tcp
      protocol: TCP
      port: 8888
      targetPort: 8888

Route

• Expose the Service to internet at ‘hello-openshift-xx.rahtiapp.fi’. (Where ‘xx’ is the number of the training account you are holding).

• Go to Networking > Routes and click Create

Paste this code:

apiVersion: route.openshift.io/v1
kind: Route
metadata:
  name: example-route
  namespace: rahtidemotests
spec:
  host: hello-openshift-tutorial.rahtiapp.fi # Change the name
  port:
    targetPort: 8080-tcp # Must match your service port name 
  tls:
    termination: edge
    insecureEdgeTerminationPolicy: Redirect
  to:
    kind: Service
    name: example-svc # Must match your service name

Accessing the application

• You can click on the newly created route to access the website. You should see “Hello Openshift!”

Cleanup

1. On the DeploymentConfig page, click your Deployment Config > Actions > Delete Deployment Config
2. On the Service page, click your Service > Actions > Delete Service
3. On the Route page, clik your Route > Actions > Delete Route

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