tftsr_ai/roles/keycloak

Role: keycloak

Purpose

Deploy Keycloak 24.x and configure the platform realm for single sign-on (SSO) across all platform services.

Container Configuration

Setting	Value
Image	quay.io/keycloak/keycloak:latest
Port mapping	{{ keycloak_port }}:8080
Volume	/mnt/ai_data/keycloak:/opt/keycloak/data
Data directory ownership	1000:1000 (Keycloak container user)
KC_HOSTNAME	https://idm.<domain> (full URL required)
KC_PROXY_HEADERS	xforwarded (replaces deprecated KC_PROXY)
KC_HTTP_ENABLED	true (TLS terminated at NGINX)
KEYCLOAK_ADMIN	admin
KEYCLOAK_ADMIN_PASSWORD	(from Vault)

Note: KC_PROXY_HEADERS=xforwarded replaces the deprecated KC_PROXY=edge from Keycloak 23 and earlier. The full URL format for KC_HOSTNAME is required in Keycloak 24+ to correctly generate HTTPS redirect URLs when behind a proxy.

Realm Configuration

• Realm name: {{ keycloak_realm }} (default: ai-platform)
• Display name: {{ keycloak_realm_display }} (default: AI Platform)

Clients

Client ID	Purpose	Redirect URIs
open-webui	Open WebUI SSO	https://ollama-ui.<domain>/*
vault	Vault UI OIDC login	https://vault.<domain>/ui/vault/auth/oidc/oidc/callback

The vault client is created by playbooks/11_vault_oidc.yml, not this playbook. Both client secrets are stored in Vault.

Roles

Role	Open WebUI	Vault OIDC	Description
ai-user	✅ Standard access	❌ Blocked	Standard AI platform user
ai-admin	✅ Admin access	✅ Full access	AI platform administrator

Assign roles when creating users in the platform realm (not the master realm).

Pre-created User

• {{ keycloak_realm_admin_user }} (default: ai-platform-admin) — created with the ai-admin role assigned. Password stored in Vault at {{ vault_secret_prefix }}/keycloak:realm_admin_password.

Resetting Keycloak

If the Keycloak database needs to be wiped (e.g. admin password mismatch after credential rotation), stop the container, remove the data directory, and re-run:

ssh <ai_server_ip> 'sudo docker stop keycloak; sudo docker rm keycloak; sudo rm -rf /mnt/ai_data/keycloak/*'
ansible-playbook playbooks/05_keycloak.yml -K -e @local.yml
ansible-playbook playbooks/11_vault_oidc.yml -K -e @local.yml

Keycloak will initialize from scratch using the current credentials in Vault. Re-run 11_vault_oidc.yml afterward to recreate the vault OIDC client.

OIDC Endpoint

https://idm.<domain>/realms/<keycloak_realm>/.well-known/openid-configuration

Admin Console

https://idm.<domain>/admin/

Log in with the admin user and the password stored in Vault at {{ vault_secret_prefix }}/keycloak:admin_password.

Tags

ansible-playbook playbooks/site.yml --tags keycloak