namespace
A project is a logical space created on an OpenShift cluster corresponding to a namespace to host one or more pods that will have direct interaction with each other.
As an example, a web front-end pod and a database pod could be deployed within a project called my-webapp.
The CLI command to create a project is:
oc new-project my-webapp --display-name="External web services" --description="External customer facing web service"
The YAML API object definition is:
kind: Project
apiVersion: project.openshift.io/v1
metadata:
name: my-webapp
annotations:
openshift.io/description: External customer facing web service
openshift.io/display-name: External web services
Considering an application lifecycle, three projects could be created on a single OCP cluster:
my-webapp-dev; where all the development will happen and each pull request from a git perspective could trigger pipeline update to build and deploy a new version of the application.
kind: Project
apiVersion: project.openshift.io/v1
metadata:
name: my-webapp-dev
annotations:
openshift.io/description: Development of External customer facing web service
openshift.io/display-name: DEV EWS
my-webapp-tst; where a release candidate would be deployed and goes through the functional and non-functional testing.
kind: Project
apiVersion: project.openshift.io/v1
metadata:
name: my-webapp-tst
annotations:
openshift.io/description: Test environment for External customer facing web service
openshift.io/display-name: TST EWS
my-webapp-prd; where a release candidate has been validated and cut as the next go to release.