8.3.2.2. Creating a rolling deployment

Procedure

1. Create an application based on the example deployment images found in Quay.io:

   $ oc new-app quay.io/openshifttest/deployment-example:latest

   참고

   This image does not expose any ports. If you want to expose your applications over an external LoadBalancer service or enable access to the application over the public internet, create a service by using the oc expose dc/deployment-example --port=<port> command after completing this procedure.

2. If you have the router installed, make the application available via a route or use the service IP directly.

   $ oc expose svc/deployment-example

3. Browse to the application at deployment-example.<project>.<router_domain> to verify you see the v1 image.

4. Scale the DeploymentConfig object up to three replicas:

   $ oc scale dc/deployment-example --replicas=3

5. Trigger a new deployment automatically by tagging a new version of the example as the latest tag:

   $ oc tag deployment-example:v2 deployment-example:latest

6. In your browser, refresh the page until you see the v2 image.

7. When using the CLI, the following command shows how many pods are on version 1 and how many are on version 2. In the web console, the pods are progressively added to v2 and removed from v1:

   $ oc describe dc deployment-example