Authentik SSO Setup: Secure Access to Multiple Applications
Deploy Authentik with Docker Compose, including PostgreSQL, initial admin, Nginx reverse proxy, OIDC provider, application integration, MFA, recovery account, SMTP and backup.
What will be running at the end?
Deploy Authentik with Docker Compose, including PostgreSQL, initial admin, Nginx reverse proxy, OIDC provider, application integration, MFA, recovery account, SMTP and backup. Every command is presented as an operational step; replace example hostnames, passwords and secrets before execution.
Architecture and requirements before installation
Ubuntu 24.04 LTS with sudo access and a dedicated IPv4 address
Docker Engine and Compose v2 where the deployment uses containers
A DNS A record pointing the application hostname to the server
NVMe capacity sized for application data, logs, temporary files and backups
Memory and CPU headroom based on measured concurrency rather than vendor minimums
DNS and port plan
80/443 TCP: reverse proxy
9000/9443 TCP: Authentik iç/yerel erişim
5432 TCP: PostgreSQL yalnız iç ağ
Hands-on installation steps
1. Compose dosyası
mkdir -p /opt/authentik && cd /opt/authentik
wget -O compose.yml https://docs.goauthentik.io/compose.yml
Authentik SSO Setup must be isolated behind HTTPS; databases, queues and internal APIs must not be published directly to the internet.
Production note
Pin tested image versions before production. Read release notes and take an application-consistent backup before database migrations.
Production note
A database dump alone may be incomplete. Preserve persistent files, configuration, encryption keys and the exact deployed version together.
Production note
Validate the installation with a real transaction or workload, then reboot the host and confirm automatic recovery before accepting production traffic.
Common failures and root causes
Belirti / Symptom
Kök neden ve çözüm / Root cause and fix
Service or container does not start
Inspect compose configuration, dependency health, file permissions and the first fatal log line instead of repeatedly restarting.