Overview
KubeRocketCI uses Keycloak as central access management solution, handling user permissions across various platform tools, including Kubernetes. Kubernetes clusters leverage Keycloak for RBAC implementation via OIDC. This consistent approach allows administrators to manage access uniformly. Within Kubernetes, Custom Resources (CRs) are used to refine and enforce access controls by configuring Keycloak, translating Kubernetes configurations into Keycloak access policies.
Keycloak Components Overviewβ
Keycloak is a critical component in KubeRocketCI for managing authentication and authorization. It uses realms, roles and groups to control access across the platform.
The diagram below illustrates the Keycloak resources within the KubeRocketCI system. It shows how tools and their Keycloak configurations are managed within the shared
and broker
realms. The broker
realm serves as a central "authentication proxy" (broker), connecting to external Identity Providers (IdPs) such as Google, Facebook, and Active Directory (AD) through OIDC and/or SAML protocols. The shared
realm consolidates platform tools such as Argo CD, Nexus Repository, SonarQube, Report-portal, Harbor, and others as OIDC (OpenID Connect) clients.
Each component can have its own unique configurations, including Keycloak roles, groups, or client scopes.
Keycloak Roles and Groupsβ
The diagram below provides an overview of the access control mechanisms for various tools integrated with Keycloak. It illustrates two primary methods of managing user access: Keycloak roles and Keycloak groups.
Components, highlighted in red, require additional configuration directly within the tool's UI.
${platform}
is a placeholder for the platform name (namespace), where the KubeRocketCI is deployed.
For detailed instructions on setting up OIDC integration for various components, please refer to the following articles:
- AWX - Community Documentation
- DefectDojo - DefectDojo Permissions
- Nexus - Nexus authentication process
- Report Portal - Report Portal Keycloak Integration
- Vault - OIDC provider configuration
- Tekton - Tekton Dashboard Authentication
- Gerrit - Gerrit Authentication
Rolesβ
The shared
Keycloak realm defines two composite roles:
-
Administrator Role:
- Designed for users who need administrative access to the tools used on the platform.
- This composite role includes the
administrator
andsonar-administrators
roles. - Users assigned the
administrator
composite role will inherit both roles.
-
Developer Role:
- Designed for users who need access to the development tools used on the platform.
- This composite role includes the
developer
andsonar-developers
roles. - Users assigned the
developer
composite role will inherit both roles.
These composite roles simplify the assignment of administrative and development permissions within the KubeRocketCI.
The table below provides an overview of the shared
realm roles and their types:
Realm Role Name | Regular Role | Composite role |
---|---|---|
administrator | β | |
developer | β | |
sonar-administrators | β | |
sonar-developers | β |
Groupsβ
KubeRocketCI uses the shared
realm for group management. The groups are designed to control access to various components such as Argo CD, the KubeRocketCI portal, and the EKS cluster.
Group Name | Purpose |
---|---|
ArgoCDAdmins | Administrator access to Argo CD instance |
ArgoCD-${platform}-users | Access to the Argo CD project mapped to the ${platform} tenant |
oidc-cluster-admins | Full administrator (cluster-admin) access to the kubernetes cluster |
${platform}-oidc-admins | Administrator access to KubeRocketCI |
${platform}-oidc-developers | Developer access to KubeRocketCI |
${platform}-oidc-viewers | Read-only access to view resources in KubeRocketCI |
These groups simplify the management of permissions and ensure that users have the appropriate level of access based on their roles and responsibilities.
SonarQube OIDCβ
Access to SonarQube is managed through configurations in Keycloak (Keycloak Operator) and SonarQube (Sonar Operator). This section provides a detailed walkthrough for configuring access control.
Keycloak Configurationβ
SonarQube access is managed using Keycloak roles within the shared
realm:
- sonar-developers: Grants developer access to SonarQube.
- sonar-administrators: Grants administrative access to SonarQube.
To grant access, the appropriate role must be assigned to the user in Keycloak.
A user who needs developer access to SonarQube should be assigned the sonar-developers
role or the developer
composite role in Keycloak.
SonarQube Configurationβ
KubeRocketCI Sonar Operator provides a SonarQube Permission Template to manage user access and permissions for SonarQube projects.
The template is stored in the SonarQube custom resource of the operator. An example of a custom resource is shown below.
apiVersion: v2.edp.epam.com/v1
kind: SonarPermissionTemplate
metadata:
name: edp-default
spec:
name: edp-default
description: "KubeRocketCI permission templates (DO NOT REMOVE)"
projectKeyPattern: ".+"
default: true
groupsPermissions:
non-interactive-users:
- user
sonar-developers:
- user
- securityhotspotadmin
- issueadmin
- codeviewer
sonar-administrators:
- admin
- user
sonarRef:
name: sonar
The SonarQube Permission Template defines three groups: non-interactive-users
, sonar-administrators
, and sonar-developers
:
- non-interactive-users: Users who have read-only access to the project. They can view project's data and metrics but cannot modify or interact with it.
- sonar-administrators: Users with full control over the SonarQube project. They can create, modify, delete projects, manage user access, and configure SonarQube settings.
- sonar-developers: Users actively working on the SonarQube project. They have read and write access, can modify project data and metrics, and configure project-specific settings.
These groups provide different levels of access based on the user's role and responsibilities.
If a user is not assigned to any group, they will be placed in the sonar-users
group by default. This group does not have any permissions in the edp-default
Permission Template.
Group Permissionsβ
The following table describes the permissions assigned to each group:
Group Name | Sonar Permissions |
---|---|
non-interactive-users | user |
sonar-administrators | admin, user |
sonar-developers | codeviewer, issueadmin, securityhotspotadmin, user |
sonar-users | - |
Nexus Repository Managerβ
KubeRocketCI leverages oauth2-proxy to authenticate users in Nexus Repository Manager OSS.
The user's access level is determined by the roles assigned in Keycloak.
Only users with either the administrator
or developer
role in Keycloak can access Nexus.
The platform manages two distinct roles: edp-admin
, edp-viewer
.
apiVersion: edp.epam.com/v1alpha1
kind: NexusRole
metadata:
name: edp-admin
spec:
id: edp-admin
nexusRef:
name: nexus
kind: Nexus
name: edp-admin
description: Read and write access to all repos and scripts
privileges:
- nx-apikey-all
- nx-repository-view-*-*-add
- nx-repository-view-*-*-browse
- nx-repository-view-*-*-edit
- nx-repository-view-*-*-read
- nx-script-*-add
- nx-script-*-delete
- nx-script-*-run
- nx-search-read
apiVersion: edp.epam.com/v1alpha1
kind: NexusUser
metadata:
name: ci-user
namespace: nexus
spec:
email: ci.user@edp.com
firstName: ci.user
id: ci.user
lastName: CI
nexusRef:
kind: Nexus
name: nexus
roles:
- edp-admin
secret: $ci-nexus:password
status: active
KubeRocketCI Portal and Kubernetes Clusterβ
Both the KubeRocketCI Portal and the Kubernetes cluster use Keycloak groups for access control. Users must be added to the appropriate group in Keycloak to gain access. These groups are configured in the broker
realm.
For the Kubernetes cluster to manage access control correctly, Keycloak must be configured as an OpenID Connect (OIDC) provider. Ensure that your Keycloak setup is properly configured for OIDC before proceeding.
The broker
realm keeps Kubernetes OIDC client.
Keycloak Groupsβ
Group Name | View | Build | Deploy | Full Namespace Access |
---|---|---|---|---|
${platform}-oidc-admins | β | β | β | β |
${platform}-oidc-developers | β | β | β | |
${platform}-oidc-viewers | β |
Cluster RBAC Resourcesβ
The platform defines five RoleBindings that grant the necessary permissions to the corresponding Keycloak groups mentioned above.
RoleBinding Name | Role Name | Groups |
---|---|---|
tenant-admin | cluster-admin | ${platform}-oidc-admins |
tenant-developer | tenant-developer | ${platform}-oidc-developers |
tenant-viewer | view | ${platform}-oidc-viewers , ${platform}-oidc-developers |
Platform includes RBAC settings for the full cluster administration privileges.
Cluster Role Binding Name | Cluster Role Name | Group |
---|---|---|
cluster-admin | cluster-admin | oidc-cluster-admins |
KubeRocketCI provides an aggregated ClusterRole edp-aggregate-view-${platform}
with the permissions to view the KubeRocketCI custom resources.
The tenant-admin
RoleBinding is created in a namespace by the cd-pipeline-operator
. The tenant-admin
RoleBinding assigns the admin
role to the ${platform}-oidc-admins
and ${platform}-oidc-developers
groups.
Grant User Access to the Created Namespacesβ
To provide users with admin or developer privileges for project namespaces, they need to be added to the ${platform}-oidc-admins
and ${platform}-oidc-developers
groups in Keycloak.
Argo CDβ
In Argo CD, groups are specified when creating an AppProject to restrict access to deployed applications. To gain access to deployed applications within a project, users must be added to the corresponding Argo CD group in Keycloak. This ensures that only authorized users can access and modify applications within the project.
By default, only the ArgoCDAdmins
group is automatically created in Keycloak.
Gerritβ
Users should authenticate to Gerrit using their Keycloak credentials.
After logging into Gerrit, users are not automatically assigned to any groups. To add a user to a group, a GerritGroupMember
custom resource must be created. This custom resource specifies the user's email address and the name of the group to which they should be added.
Below is an example of a GerritGroupMember
custom resource:
apiVersion: v2.edp.epam.com/v1
kind: GerritGroupMember
metadata:
name: user-admins
spec:
accountId: user@user.com
groupId: Administrators
Once the GerritGroupMember
resource is created, the user will inherit the permissions and access levels associated with the specified group.