OpenShift 4.10 I: Create an OCP Application

First create a new OCP project.

$ oc new-project myapp

Create an application from an image.

$ oc new-app --name=todonodejs \
  --image=quay.io/redhattraining/do180-todonodejs-12 \
  --env MYSQL_ENV_MYSQL_DATABASE=tododb \
  --env MYSQL_ENV_MYSQL_USER=user1 \
  --env MYSQL_ENV_MYSQL_PASSWORD=redhat123 \
  --labels app=todonodejs

Create an application based on source code in a git repository - Source-to-Image (S2I).

$ oc new-app --name=nodejs-dev \
  --image-stream=nodejs:16-ubi8 \
  https://github.com/magnuskkarlsson/DO180-apps#troubleshoot-review \
  --context-dir=nodejs-app

Create an application from an existing template.

$ oc new-app --name=mysql --template=mysql-persistent \
  --param MYSQL_USER=user1 \
  --param MYSQL_PASSWORD=redhat123 \
  --param MYSQL_ROOT_PASSWORD=redhat123 \
  --param MYSQL_DATABASE=tododb \
  --labels app=todonodejs