Replace Google Analytics 4 / Mixpanel with Self-Hosted PostHog

# Production Docker Compose: PostHog (Replaces Google Analytics 4 / Mixpanel)
services:
  caddy:
    image: caddy:2-alpine
    restart: unless-stopped
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile:ro
      - caddy_data:/data
    networks:
      - stack_net

  posthog:
    image: posthog/posthog:latest
    container_name: stack-posthog
    restart: unless-stopped
    environment:
      - "SITE_URL=https://posthog.${DOMAIN:-yourdomain.com}"
      - "SECRET_KEY=${POSTHOG_SECRET:-super_secret_posthog_key}"
    volumes:
      - posthog_data:/data
    networks:
      - stack_net

  postgres:
    image: pgvector/pgvector:pg16
    container_name: stack-postgres
    restart: unless-stopped
    environment:
      - "POSTGRES_USER=postgres"
      - "POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-strongpassword}"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - stack_net

  redis:
    image: redis:7-alpine
    container_name: stack-redis
    restart: unless-stopped
    volumes:
      - redis_data:/data
    networks:
      - stack_net

networks:
  stack_net:
    driver: bridge

volumes:
  caddy_data:
  posthog_data:
  postgres_data:
  redis_data:

# Automatic Let's Encrypt HTTPS for PostHog
posthog.{$DOMAIN:yourdomain.com} {
  encode zstd gzip
  reverse_proxy posthog:8000
}

Why Teams Switch to PostHog

• ✓Replaces Mixpanel + Hotjar + LaunchDarkly
• ✓Session recordings & heatmaps
• ✓SQL insights directly on events

Deploy PostHog in 60 Seconds

Sized automatically for PostHog (4096MB container RAM + OS overhead).