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Deploy to Red Hat OpenShift on IBM Cloud

Follow these instructions to deploy this application to Red Hat OpenShift and connect it with a Cloudant database.

Create an OpenShift cluster

  1. If you don't have one already, create an OpenShift cluster on the IBM Cloud.
  2. Follow the instructions in Installing the OpenShift CLI to set up your oc CLI.
  3. Choose (and if necessary create) a namespace for the application

Create a Cloudant Database

  1. Go to the Catalog and create a new Cloudant database instance.

  2. Choose IAM for Authentication.

  3. Create new credentials under Service Credentials and copy value of the url field.

  4. Create a Kubernetes secret with your Cloudant credentials.

oc create secret generic cloudant --from-literal=url=<URL> --from-literal=iamApiKey=<IAM_API_KEY>

Example:

oc create secret generic cloudant --from-literal=url=https://xxxxx-yyyy-zzz-eeeee-ddddddd-bluemix.cloudantnosqldb.appdomain.cloud --from-literal=iamApiKey=xxxxxx-ddd-ppppppppppp

Build and deploy the application direct from it's source in github

  1. Build and deploy the application from source:
oc new-app https://github.com/IBM-Cloud/get-started-node --strategy=source --env PORT=8080

You should see both a build pod and then an application pod appear, which you can check using:

oc get pods
  1. Once the application is running, you then need to patch the deployment to ensure that the cloudant secret is exposed to the application via environment variables:
oc patch deployment get-started-node --type "json" -p \
  '[{"op":"add","path":"/spec/template/spec/containers/0/env/-","value":{"name":"CLOUDANT_URL","valueFrom":{"secretKeyRef":{"key":"url","name":"cloudant","optional":true}}}},{"op":"add","path":"/spec/template/spec/containers/0/env/-","value":{"name":"CLOUDANT_IAM_API_KEY","valueFrom":{"secretKeyRef":{"key":"iamApiKey","name":"cloudant","optional":true}}}}]'

You should see the applicaiton pod re-start.

  1. Expose a route to the application:
oc expose svc/get-started-node

Access the application

  1. Identify the route to the application oc get route get-started-node
  2. Access your application via the HTTP URL given in the HOST/PORT column, which will be of the form get-started-node-.....containers.appdomain.cloud.

Clean Up

If, and when, you want to remove the application:

oc delete deployment,route,service,buildconfig,imagestream -l app=get-started-node
oc delete secret cloudant