Gitea Docker Setup (Traefik + Existing Postgres + Actions Runner)

This project deploys:

• gitea behind your existing Traefik reverse proxy
• gitea-runner for CI/CD (Gitea Actions)
• connection to your already running Postgres in the shared Docker network

What this is built for

• Existing stack already provides:
  • Traefik with Let's Encrypt
  • Postgres service named postgres
  • shared Docker network via ${SHARED_NETWORK_NAME}
• Gitea should be reachable at subdomain git (for example git.example.com)

Files

• docker-compose.yml: Gitea + Actions runner stack
• .env.example: required environment variables

1) Prepare environment

cp .env.example .env

Edit .env and set:

• SHARED_NETWORK_NAME to the same network name used by your main stack
• GITEA_DOMAIN to your git subdomain (for example git.example.com)
• Postgres credentials for a dedicated Gitea database/user

2) Create Postgres DB/User (on your existing DB)

If not already present, create dedicated credentials for Gitea in your existing Postgres:

CREATE USER gitea WITH PASSWORD 'change-me';
CREATE DATABASE gitea OWNER gitea;
GRANT ALL PRIVILEGES ON DATABASE gitea TO gitea;

Use your own secure password and update .env.

3) DNS

Create an A/AAAA record for:

• git.<your-domain> -> your server IP

4) Start services

docker compose up -d

5) Create the first admin user

Run the CLI inside the container as the non-root git user:

docker exec -u git -it gitea gitea admin user create \
  --username youradmin \
  --password 'StrongPasswordHere' \
  --email you@example.com \
  --admin \
  --must-change-password=false

Public sign-up is disabled by default in this stack (GITEA__service__DISABLE_REGISTRATION=true).

6) Runner registration token

1. Open https://<your-gitea-domain>
2. Login as admin
3. Go to:
   • Site level: Administration -> Actions -> Runners
   • or Org/Repo level: Settings -> Actions -> Runners
4. Generate registration token
5. Put token into .env as GITEA_RUNNER_REGISTRATION_TOKEN
6. Restart runner:

docker compose up -d gitea-runner

7) Verify

docker compose ps
docker compose logs -f gitea
docker compose logs -f gitea-runner

Notes

• This setup uses HTTPS via Traefik labels and Let's Encrypt from your existing stack.
• Git over SSH is not enabled in this compose because your current Traefik config only exposes :80 and :443. HTTPS clone/push works directly.
• Gitea Actions is enabled (GITEA__actions__ENABLED=true).