Configuring project creation - Projects | Building applications

About project creation
Modifying the template for new projects
Disabling project self-provisioning
Customizing the project request message

In OpenShift Container Platform, projects are used to group and isolate related objects. When a request is made to create a new project using the web console or oc new-project command, an endpoint in OpenShift Container Platform is used to provision the project according to a template, which can be customized.

As a cluster administrator, you can allow and configure how developers and service accounts can create, or self-provision, their own projects.

About project creation

The OpenShift Container Platform API server automatically provisions new projects based on the project template that is identified by the projectRequestTemplate parameter in the cluster’s project configuration resource. If the parameter is not defined, the API server creates a default template that creates a project with the requested name, and assigns the requesting user to the admin role for that project.

When a project request is submitted, the API substitutes the following parameters into the template:

Table 1. Default project template parameters
Parameter	Description
`PROJECT_NAME`	The name of the project. Required.
`PROJECT_DISPLAYNAME`	The display name of the project. May be empty.
`PROJECT_DESCRIPTION`	The description of the project. May be empty.
`PROJECT_ADMIN_USER`	The user name of the administrating user.
`PROJECT_REQUESTING_USER`	The user name of the requesting user.

Access to the API is granted to developers with the self-provisioner role and the self-provisioners cluster role binding. This role is available to all authenticated developers by default.

Modifying the template for new projects

As a cluster administrator, you can modify the default project template so that new projects are created using your custom requirements.

To create your own custom project template:

Prerequisites

You have access to an OpenShift Container Platform cluster using an account with cluster-admin permissions.

Procedure

Generate the default project template:

$ oc adm create-bootstrap-project-template -o yaml > template.yaml

Use a text editor to modify the generated template.yaml file by adding objects or modifying existing objects.
The project template must be created in the openshift-config namespace. Load your modified template:
```
$ oc create -f template.yaml -n openshift-config
```
Edit the project configuration resource using the web console or cli.
- Using the web console:
  1. Navigate to the Administration → Cluster Settings page.
  2. click Configuration to view all configuration resources.
  3. Find the entry for Project and click Edit YAML.
- Using the cli:
  1. Edit the project.config.openshift.io/cluster resource:
    
    $ oc edit project.config.openshift.io/cluster
Update the spec section to include the projectRequestTemplate and name parameters, and set the name of your uploaded project template. The default name is project-request.
Project configuration resource with custom project template
```
apiVersion: config.openshift.io/v1
kind: Project
metadata:
# ...
spec:
  projectRequestTemplate:
    name: <template_name>
# ...
```
After you save your changes, create a new project to verify that your changes were successfully applied.

Disabling project self-provisioning

You can prevent an authenticated user group from self-provisioning new projects.

Procedure

View the self-provisioners cluster role binding usage by running the following command:

$ oc describe clusterrolebinding.rbac self-provisioners

Example output

Name:		self-provisioners
Labels:		<none>
Annotations:	rbac.authorization.kubernetes.io/autoupdate=true
Role:
  Kind:	ClusterRole
  Name:	self-provisioner
Subjects:
  Kind	Name				Namespace
  ----	----				---------
  Group	system:authenticated:oauth

Review the subjects in the self-provisioners section.

Remove the self-provisioner cluster role from the group system:authenticated:oauth.
- If the self-provisioners cluster role binding binds only the self-provisioner role to the system:authenticated:oauth group, run the following command:
  $ oc patch clusterrolebinding.rbac self-provisioners -p '{"subjects": null}'
- If the self-provisioners cluster role binding binds the self-provisioner role to more users, groups, or service accounts than the system:authenticated:oauth group, run the following command:
  $ oc adm policy \ remove-cluster-role-from-group self-provisioner \ system:authenticated:oauth
Edit the self-provisioners cluster role binding to prevent automatic updates to the role. Automatic updates reset the cluster roles to the default state.
- To update the role binding using the cli:
  1. Run the following command:
    
    $ oc edit clusterrolebinding.rbac self-provisioners
  2. In the displayed role binding, set the rbac.authorization.kubernetes.io/autoupdate parameter value to false, as shown in the following example:
    
    apiVersion: authorization.openshift.io/v1 kind: ClusterRoleBinding metadata: annotations: rbac.authorization.kubernetes.io/autoupdate: "false" # ...
- To update the role binding by using a single command:
  $ oc patch clusterrolebinding.rbac self-provisioners -p '{ "metadata": { "annotations": { "rbac.authorization.kubernetes.io/autoupdate": "false" } } }'
Log in as an authenticated user and verify that it can no longer self-provision a project:
```
$ oc new-project test
```
Example output
```
Error from server (Forbidden): You may not request a new project via this API.
```
Consider customizing this project request message to provide more helpful instructions specific to your organization.

Customizing the project request message

When a developer or a service account that is unable to self-provision projects makes a project creation request using the web console or cli, the following error message is returned by default:

You may not request a new project via this API.

Cluster administrators can customize this message. Consider updating it to provide further instructions on how to request a new project specific to your organization. For example:

To request a project, contact your system administrator at projectname@example.com.
To request a new project, fill out the project request form located at https://internal.example.com/openshift-project-request.

To customize the project request message:

Procedure

Edit the project configuration resource using the web console or cli.
- Using the web console:
  1. Navigate to the Administration → Cluster Settings page.
  2. click Configuration to view all configuration resources.
  3. Find the entry for Project and click Edit YAML.
- Using the cli:
  1. Log in as a user with cluster-admin privileges.
  2. Edit the project.config.openshift.io/cluster resource:
    
    $ oc edit project.config.openshift.io/cluster

Update the spec section to include the projectRequestMessage parameter and set the value to your custom message:

Project configuration resource with custom project request message

apiVersion: config.openshift.io/v1
kind: Project
metadata:
# ...
spec:
  projectRequestMessage: <message_string>
# ...

For example:

apiVersion: config.openshift.io/v1
kind: Project
metadata:
# ...
spec:
  projectRequestMessage: To request a project, contact your system administrator at projectname@example.com.
# ...

After you save your changes, attempt to create a new project as a developer or service account that is unable to self-provision projects to verify that your changes were successfully applied.