3d071fc505
# Which Problems Are Solved ZITADEL currently selects the instance context based on a HTTP header (see https://github.com/zitadel/zitadel/issues/8279#issue-2399959845 and checks it against the list of instance domains. Let's call it instance or API domain. For any context based URL (e.g. OAuth, OIDC, SAML endpoints, links in emails, ...) the requested domain (instance domain) will be used. Let's call it the public domain. In cases of proxied setups, all exposed domains (public domains) require the domain to be managed as instance domain. This can either be done using the "ExternalDomain" in the runtime config or via system API, which requires a validation through CustomerPortal on zitadel.cloud. # How the Problems Are Solved - Two new headers / header list are added: - `InstanceHostHeaders`: an ordered list (first sent wins), which will be used to match the instance. (For backward compatibility: the `HTTP1HostHeader`, `HTTP2HostHeader` and `forwarded`, `x-forwarded-for`, `x-forwarded-host` are checked afterwards as well) - `PublicHostHeaders`: an ordered list (first sent wins), which will be used as public host / domain. This will be checked against a list of trusted domains on the instance. - The middleware intercepts all requests to the API and passes a `DomainCtx` object with the hosts and protocol into the context (previously only a computed `origin` was passed) - HTTP / GRPC server do not longer try to match the headers to instances themself, but use the passed `http.DomainContext` in their interceptors. - The `RequestedHost` and `RequestedDomain` from authz.Instance are removed in favor of the `http.DomainContext` - When authenticating to or signing out from Console UI, the current `http.DomainContext(ctx).Origin` (already checked by instance interceptor for validity) is used to compute and dynamically add a `redirect_uri` and `post_logout_redirect_uri`. - Gateway passes all configured host headers (previously only did `x-zitadel-*`) - Admin API allows to manage trusted domain # Additional Changes None # Additional Context - part of #8279 - open topics: - "single-instance" mode - Console UI |
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Are you searching for a user management tool that is quickly set up like Auth0 and open source like Keycloak?
Do you have a project that requires multi-tenant user management with self-service for your customers?
Look no further — ZITADEL is the identity infrastructure, simplified for you.
We provide you with a wide range of out-of-the-box features to accelerate your project, including:
✅ Multi-tenancy with team management
✅ Secure login
✅ Self-service
✅ OpenID Connect
✅ OAuth2.x
✅ SAML2
✅ LDAP
✅ Passkeys / FIDO2
✅ OTP
and an unlimited audit trail is there for you, ready to use.
With ZITADEL, you are assured of a robust and customizable turnkey solution for all your authentication and authorization needs.
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If you want to experience a hands-free ZITADEL, you should use ZITADEL Cloud.
ZITADEL Cloud comes with a free tier, providing you with all the same features as the open-source version. Learn more about the pay-as-you-go pricing.
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Clone one of our example applications or deploy them directly to Vercel.
SDKs
Use our SDKs for your favorite language and framework.
Why choose ZITADEL
We built ZITADEL with a complex multi-tenancy architecture in mind and provide the best solution to handle B2B customers and partners. Yet it offers everything you need for a customer identity (CIAM) use case.
- API-first approach
- Multi-tenancy authentication and access management
- Strong audit trail thanks to event sourcing as storage pattern
- Actions to react on events with custom code and extended ZITADEL for you needs
- Branding for a uniform user experience across multiple organizations
- Self-service for end-users, business customers, and administrators
- CockroachDB or a Postgres database as reliable and widespread storage option
Features
Authentication
- Single Sign On (SSO)
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- Username / Password
- Multifactor authentication with OTP, U2F, Email OTP, SMS OTP
- LDAP
- External enterprise identity providers and social logins
- Device authorization
- OpenID Connect certified => OIDC Endpoints
- SAML 2.0 => SAML Endpoints
- Custom sessions if you need to go beyond OIDC or SAML
- Machine-to-machine with JWT profile, Personal Access Tokens (PAT), and Client Credentials
- Token exchange and impersonation
Multi-Tenancy
- Identity Brokering with templates for popular identity providers
- Customizable onboaring for B2B and their users
- Delegate role management to third-parties
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Integration
- GRPC and REST APIs for every functionality and resource
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- Role Based Access Control (RBAC)
- Examples and SDKs
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- Hosted and custom login user interface
Self-Service
- Self-registration including verification
- Self-service for end-users, business customers, and administrators
- Administration UI (Console)
Deployment
- Postgres (version >= 14) or CockroachDB (version latest stable)
- Zero Downtime Updates
- High scalability
Track upcoming features on our roadmap.
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Technical Advisories are published regarding major issues with the ZITADEL platform that could potentially impact security or stability in production environments.
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