Keycloak
Keycloak identity and access management including realms, clients, authentication flows, themes,…
by thelobbi · MIT
The skill
Keycloak identity and access management including realms, clients, authentication flows, themes, and user federation. Activate for OAuth2, OIDC, SAML, SSO, identity providers, and authentication configuration.
Keycloak Skill
Provides comprehensive Keycloak identity and access management capabilities for the Alpha Members Platform.
When to Use This Skill
Activate this skill when working with:
- Keycloak realm configuration
- Client setup and management
- Authentication flows (MFA, OTP, WebAuthn)
- User federation (LDAP, Active Directory)
- Identity providers (SAML, OIDC, social login)
- Theme customization
- Role-based access control
Quick Reference
Common Commands
# Start Keycloak in dev mode
docker-compose up keycloak keycloak-db -d
# Export realm configuration
docker exec keycloak /opt/keycloak/bin/kc.sh export \
--realm alpha-members \
--dir /tmp/export \
--users realm_file
# Import realm
docker exec keycloak /opt/keycloak/bin/kc.sh import \
--dir /opt/keycloak/data/import
# Get admin token
curl -X POST "http://localhost:8080/realms/master/protocol/openid-connect/token" \
-d "client_id=admin-cli" \
-d "username=admin" \
-d "password=admin" \
-d "grant_type=password"
# Health check
curl http://localhost:8080/health/ready
Admin REST API
# Base URL
KEYCLOAK_URL="http://localhost:8080"
REALM="alpha-members"
# List users
curl -H "Authorization: Bearer $TOKEN" \
"$KEYCLOAK_URL/admin/realms/$REALM/users"
# Create client
curl -X POST -H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
"$KEYCLOAK_URL/admin/realms/$REALM/clients" \
-d '{"clientId": "new-client", "enabled": true}'
# Get realm roles
curl -H "Authorization: Bearer $TOKEN" \
"$KEYCLOAK_URL/admin/realms/$REALM/roles"
Realm Configuration
alpha-members Realm
{
"realm": "alpha-members",
"enabled": true,
"sslRequired": "external",
"registrationAllowed": true,
"registrationEmailAsUsername": true,
"verifyEmail": true,
"bruteForceProtected": true,
"failureFactor": 5,
"maxFailureWaitSeconds": 900
}
Default Roles
- admin - Full administrative access
- member - Standard member access
- guest - Limited guest access
Client Roles (member-api)
- members:read
- members:write
- members:delete
- members:admin
Authentication Flows
Browser Flow (Default)
- Cookie (ALTERNATIVE)
- Identity Provider Redirector (ALTERNATIVE)
- Forms:
- Username/Password (REQUIRED)
- Conditional OTP (CONDITIONAL)
Custom MFA Flow
alpha-mfa-flow:
- Username Password Form (REQUIRED)
- Conditional OTP:
- Condition: User Role (admin)
- OTP Form (REQUIRED)
Client Configuration
member-api (Backend Service)
{
"clientId": "member-api",
"enabled": true,
"clientAuthenticatorType": "client-secret",
"serviceAccountsEnabled": true,
"directAccessGrantsEnabled": true,
"publicClient": false,
"protocol": "openid-connect"
}
member-ui (Frontend SPA)
{
"clientId": "member-ui",
"enabled": true,
"publicClient": true,
"standardFlowEnabled": true,
"implicitFlowEnabled": false,
"directAccessGrantsEnabled": false,
"redirectUris": ["http://localhost:3000/*"],
"webOrigins": ["+"],
"protocol": "openid-connect",
"attributes": {
"pkce.code.challenge.method": "S256"
}
}
Token Configuration
Access Token Lifespan: 1 hour (3600s)
Implicit Flow Lifespan: 15 minutes (900s)
SSO Session Idle: 30 minutes (1800s)
SSO Session Max: 10 hours (36000s)
Offline Session Idle: 30 days (2592000s)
OIDC Endpoints
Authorization: /realms/alpha-members/protocol/openid-connect/auth
Token: /realms/alpha-members/protocol/openid-connect/token
UserInfo: /realms/alpha-members/protocol/openid-connect/userinfo
Logout: /realms/alpha-members/protocol/openid-connect/logout
JWKS: /realms/alpha-members/protocol/openid-connect/certs
Discovery: /realms/alpha-members/.well-known/openid-configuration
Theme Customization
Theme Structure
keycloak/themes/alpha/
├── theme.properties
├── login/
│ ├── theme.properties
│ ├── resources/css/login.css
│ └── messages/messages_en.properties
├── account/
└── email/
Theme Properties
parent=keycloak
import=common/keycloak
styles=css/login.css
locales=en
User Federation
LDAP Configuration
Vendor: Active Directory
Connection URL: ldaps://ldap.corporate.com:636
Users DN: OU=Users,DC=corporate,DC=com
Username Attribute: sAMAccountName
Edit Mode: READ_ONLY
Sync Mode: IMPORT
Security Best Practices
- Enable brute force protection
- Require email verification
- Use SSL/TLS in production (sslRequired: all)
- Configure proper token lifetimes
- Enable audit logging
- Use PKCE for public clients
- Implement MFA for admin roles
Project Files
- Realm Config:
keycloak/realm-config/alpha-realm.json - Docker:
docker/docker-compose.yml(keycloak service) - Themes:
keycloak/themes/alpha/
Related Agents
- keycloak-realm-admin - Realm and client management
- keycloak-theme-developer - Theme customization
- keycloak-identity-specialist - Federation and SSO
- keycloak-auth-flow-designer - Authentication flows
- keycloak-security-auditor - Security review
Troubleshooting
# Check Keycloak logs
docker logs keycloak -f --tail=100
# Test OIDC configuration
curl http://localhost:8080/realms/alpha-members/.well-known/openid-configuration
# Validate token
curl -X POST "http://localhost:8080/realms/alpha-members/protocol/openid-connect/token/introspect" \
-d "client_id=member-api" \
-d "client_secret=$CLIENT_SECRET" \
-d "token=$ACCESS_TOKEN"
Use this skill
Connect your agent to the Skill Store MCP server and ask for it by ref: thelobbi/keycloak-95454478458.
Details
- Publisher
- thelobbi
- Category
- Security › Application security
- License
- MIT
- Updated
- 2026-10-08
References
More from thelobbi
- Agentic Design Patterns Catalog of 21 agentic AI design patterns (prompt chaining, routing, parallelization, reflection, too
- Atlassianapi Atlassian API integration for Jira and Confluence automation.
- Authentication Authentication and authorization including JWT, OAuth2, OIDC, sessions, RBAC, and security analysis.
- Aws AWS cloud services including EC2, EKS, S3, Lambda, RDS, and IAM.