OpenShift documentation on Environment Variables can be found here.
Sample Environmental Variable Command
oc env dc/sample PROPERTIES=howdyProperties
This command will update the deployment config, called sample, to create an environmental variable called PROPERTIES with a value of howdy. Because we are creating this in the deployment configuration, the variable will be available to the application at run-time. All pods that are created with this deploy config will use this variable.
Tuesday, September 10, 2019