Comprehensive side-by-side technical comparison between Keycloak and Authentik.

version: '3.8'
services:
  keycloak:
    image: quay.io/keycloak/keycloak:latest
    command: start-dev
    environment:
      KEYCLOAK_ADMIN: ${ADMIN_USER:-admin}
      KEYCLOAK_ADMIN_PASSWORD: ${ADMIN_PASSWORD:-admin_pwd}
    ports:
      - "${PORT:-8080}:8080"

version: '3.4'

services:
  postgresql:
    image: docker.io/library/postgres:16-alpine
    restart: unless-stopped
    volumes:
      - database:/var/lib/postgresql/data
    environment:
      POSTGRES_PASSWORD: ${PG_PASS:-secret_authentik_pw}
      POSTGRES_USER: ${POSTGRES_USER:-authentik}
      POSTGRES_DB: ${POSTGRES_DB:-authentik}

  redis:
    image: docker.io/library/redis:alpine
    command: --save 60 1 --loglevel warning
    restart: unless-stopped
    volumes:
      - redis:/data

  server:
    image: ghcr.io/goauthentik/server:latest
    restart: unless-stopped
    command: server
    environment:
      AUTHENTIK_SECRET_KEY: ${AUTHENTIK_SECRET_KEY:-generate_random_key_here}
      AUTHENTIK_REDIS__HOST: redis
      AUTHENTIK_POSTGRESQL__HOST: postgresql
      AUTHENTIK_POSTGRESQL__USER: ${POSTGRES_USER:-authentik}
      AUTHENTIK_POSTGRESQL__NAME: ${POSTGRES_DB:-authentik}
      AUTHENTIK_POSTGRESQL__PASSWORD: ${PG_PASS:-secret_authentik_pw}
    volumes:
      - ./media:/media
      - ./custom-templates:/templates
    ports:
      - "${COMPOSE_PORT_HTTP:-9000}:9000"
      - "${COMPOSE_PORT_HTTPS:-9443}:9443"
    depends_on:
      - postgresql
      - redis

volumes:
  database:
  redis: