How to Self-Host ZITADEL IAM Platform Using Docker Compose and Traefik TLS

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ZITADEL is an open-source Identity and Access Management platform that supports OIDC, OAuth 2.0, and SAML, along with built-in MFA, passkeys, and single sign-on. A deployment guide outlines how to run it using Docker Compose with PostgreSQL as the database and Traefik handling TLS certificate management via Let's Encrypt. The setup requires a Linux server with at least 4 vCPUs and 8GB of RAM, Docker, and a configured domain A record. Key configuration steps include generating a 32-character master key, setting environment variables, and defining four core services: Traefik, PostgreSQL, the ZITADEL API, and the Login UI. The guide also flags two common pitfalls: admin passwords must meet complexity requirements or initialization will fail, and dollar signs in passwords should be avoided due to Docker Compose variable interpolation.

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