Chapter 4. Deploying an existing JWS image

Procedure

1. Prepare your image and push it to the location where you want to display the image (for example, quay.io/<USERNAME>/tomcat-demo:latest).

2. To create a custom resource file for your web server application, perform the following steps:

   1. Create a YAML file named, for example, webservers_cr.yaml.

   2. Enter details in the following format:

      apiVersion: web.servers.org/v1alpha1
      kind: WebServer
      metadata:
          name: <image name>
      spec:
          # Add fields here
          applicationName: <application name>
          replicas: 2
      webImage:
         applicationImage: <URL of the image>

      For example:

      apiVersion: web.servers.org/v1alpha1
      kind: WebServer
      metadata:
          name: example-image-webserver
      spec:
          # Add fields here
          applicationName: jws-app
          replicas: 2
      webImage:
         applicationImage: quay.io/<USERNAME>/tomcat-demo:latest

3. To deploy your web application, perform the following steps:

   1. Go to the directory where you have created the web application.

   2. Enter the following command:

      $ oc apply -f webservers_cr.yaml

      The preceding command displays a message to confirm that the web application is deployed.

      For example:

      webserver/example-image-webserver created

      When you run the preceding command, the Operator also creates a route automatically.

4. Verify the route that the Operator has automatically created:

   $ oc get routes

5. Optional: Delete the webserver that you created in Step 3:

   $ oc delete webserver example-image-webserver

   Note

   Alternatively, you can delete the webserver by deleting the YAML file. For example:

   oc delete -f webservers_cr.yaml