Install with Docker

The Docker install takes a fresh Linux server to a running Tidal PTC behind HTTPS. The Compose stack runs everything the app needs: the app on Octane (FrankenPHP), Reverb for websockets, a queue worker, the scheduler, PostgreSQL and Redis. One setup script installs Docker, configures the stack and puts a reverse proxy with a Let’s Encrypt certificate in front of it. This is the recommended way to self-host.

Who this is for

District IT staff self-hosting Tidal PTC on their own Linux server.

Before you start

• Check the requirements: a Debian 12+ or Ubuntu 24.04+ server with sudo, a DNS A record pointing at it, and ports 80 and 443 open.
• Have your domain (for example ptc.example.org) and, optionally, an email address for Let’s Encrypt expiry notices.

Need a server? A DigitalOcean Droplet works well:

Run the setup script

1. On the server, run the setup script with your domain and email:

   curl -fsSL https://raw.githubusercontent.com/archboard/tidal-ptc/main/setup-docker.sh \
     | sudo bash -s -- --domain ptc.example.org --email you@example.org

   If you leave out --domain, the script prompts for it. It also prompts for the reverse proxy (Caddy by default).

2. Wait for the script to finish. From start to finish, it:

   • Installs Docker Engine and the Compose plugin from Docker’s official apt repository, if docker compose isn’t already available.
   • Downloads docker-compose.yml into /opt/tidal-ptc and adds a docker-compose.override.yml that binds the app and Reverb ports to localhost.
   • Writes .env: generates the app key, database password and Reverb credentials, and sets the production URL and Reverb host from your domain.
   • Installs a reverse proxy and gets a Let’s Encrypt certificate: Caddy (the default) or Nginx with Certbot.
   • Pulls the published images from ghcr.io/archboard/tidal-ptc, starts the stack and waits for it to be healthy. Migrations run automatically.
   • Checks that https://<domain>/up responds.

3. Log out and back in. The script adds your user to the docker group, so after that you can run docker compose from /opt/tidal-ptc without sudo.

4. Visit https://ptc.example.org/install to finish the installation. See First run.

Note

The PowerSchool client ID and secret are entered in the installer, not in .env. Email (SMTP) is configured later on the tenant settings page.

Script options

Option	Description
--domain	Public hostname. Prompted for if omitted.
--email	Let’s Encrypt expiry notices (optional).
--proxy caddy or --proxy nginx	Reverse proxy to install. Default caddy; a re-run keeps the one already set up.
--powerschool URL	PowerSchool address, for example https://powerschool.example.org.
--version TAG	Pin an image tag (matches the GitHub releases). Default latest, which tracks main. See Updating.
--dir PATH	Install directory. Default /opt/tidal-ptc.
--no-tls	Skip Let’s Encrypt and serve plain HTTP.

The script is safe to re-run: existing secrets and .env values are kept, and a re-run fetches the latest Compose file, pulls new images and restarts the stack.

What the stack runs

Service	What it does
app	Runs php artisan migrate --force, then serves the app with Octane (FrankenPHP) on port 8000.
reverb	The Reverb websocket server on port 8080.
queue	php artisan queue:work redis --queue=default,sis_sync --tries=3 --max-time=3600
scheduler	php artisan schedule:work, which sends reminders and runs cleanup. No host cron entry is needed.
postgres	PostgreSQL 18, data in the postgres volume.
redis	Redis 7, data in the redis volume.

The background services start only after app is healthy, that is, after migrations have run.

Verify

• https://ptc.example.org/up returns 200 (the script checks this for you).
• Open the browser dev tools on any page: there should be a websocket connection to wss://ptc.example.org/app/<REVERB_APP_KEY> with status 101. If it fails, REVERB_HOST, REVERB_PORT or REVERB_SCHEME don’t match the public URL, or the proxy isn’t forwarding Upgrade. See Real-time updates.

Install by hand

If you’d rather not pipe a script into bash, these are the same steps done manually.

Install Docker

Skip this if docker compose version already works. These steps use Docker’s official apt repository, which ships the Compose plugin; the docker.io package in the distro repositories does not.

# Remove any distro-packaged Docker that may conflict
sudo apt-get remove -y docker.io docker-doc docker-compose podman-docker containerd runc 2>/dev/null

# Add Docker's GPG key and apt repository
sudo apt-get update
sudo apt-get install -y ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
. /etc/os-release
sudo curl -fsSL "https://download.docker.com/linux/$ID/gpg" -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/$ID $VERSION_CODENAME stable" \
  | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Install Docker Engine and the Compose plugin
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# Start on boot and let your user run docker without sudo
sudo systemctl enable --now docker
sudo usermod -aG docker "$USER"

Log out and back in for the group change to take effect, then verify:

docker compose version
docker run --rm hello-world

$ID resolves to debian or ubuntu. On derivatives (Linux Mint, Pop!_OS, Raspberry Pi OS), set ID and VERSION_CODENAME by hand to the upstream Debian or Ubuntu release they are based on.

Get the Compose file

sudo mkdir -p /opt/tidal-ptc && sudo chown "$USER" /opt/tidal-ptc
cd /opt/tidal-ptc
curl -fsSLO https://raw.githubusercontent.com/archboard/tidal-ptc/main/docker-compose.yml
curl -fsSL -o .env https://raw.githubusercontent.com/archboard/tidal-ptc/main/.env.example
chmod 600 .env

Configure .env

Generate the app key:

sed -i "s|^APP_KEY=.*|APP_KEY=base64:$(openssl rand -base64 32)|" .env

Then edit .env and set the values listed in Configuration. Everything not listed keeps a working default, and the Compose file sets the database, Redis, cache, session and queue hosts for you.

Pull and start

docker compose pull
docker compose up -d

Migrations run automatically when the app service starts. Check that everything is healthy:

docker compose ps
docker compose logs -f app

The app now listens on http://<server-ip>:8000 and Reverb on :8080. Don’t expose those publicly; bind them to localhost and put a reverse proxy in front of them.

Bind the published ports to localhost

By default Compose publishes ports 8000 and 8080 on every interface. Create docker-compose.override.yml so they are only reachable by the reverse proxy on the same host. Compose merges this file automatically. !override replaces the default port list instead of appending to it, which would bind each port twice and fail with “address already in use”.

services:
  app:
    ports: !override
      - "127.0.0.1:8000:8000"
  reverb:
    ports: !override
      - "127.0.0.1:8080:8080"

Then run docker compose up -d to apply it.

Caution

This matters. The Compose file sets TRUSTED_PROXIES=* so the app reads client IPs from X-Forwarded-For, which is only safe when the ports can’t be reached except through your proxy. If your firewall (ufw, security groups and so on) is on, only ports 80 and 443 need to be open.

Reverse proxy

Two paths need routing:

Public path	Upstream	Notes
/app, /apps	127.0.0.1:8080 (Reverb)	Websockets: the proxy must pass the Upgrade and Connection headers
everything else	127.0.0.1:8000 (app)

Option A: Caddy (recommended)

Caddy obtains and renews the Let’s Encrypt certificate itself and proxies websockets without extra configuration. Install it from Caddy’s official apt repository, per caddyserver.com/docs/install:

sudo apt-get install -y debian-keyring debian-archive-keyring apt-transport-https curl
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/gpg.key' | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'https://dl.cloudsmith.io/public/caddy/stable/debian.deb.txt' | sudo tee /etc/apt/sources.list.d/caddy-stable.list
sudo apt-get update
sudo apt-get install -y caddy

Replace /etc/caddy/Caddyfile with:

ptc.example.org {
    @reverb path /app /app/* /apps /apps/*
    reverse_proxy @reverb 127.0.0.1:8080
    reverse_proxy 127.0.0.1:8000
}

sudo systemctl reload caddy

Option B: Nginx

Install Nginx and Certbot:

sudo apt-get update
sudo apt-get install -y nginx certbot python3-certbot-nginx
sudo systemctl enable --now nginx

Certbot’s package installs a systemd timer that renews certificates automatically; sudo certbot renew --dry-run confirms it works once the site below is set up.

Create /etc/nginx/sites-available/tidal-ptc:

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    listen 80;
    server_name ptc.example.org;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    server_name ptc.example.org;

    # Filled in by certbot
    ssl_certificate     /etc/letsencrypt/live/ptc.example.org/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/ptc.example.org/privkey.pem;

    client_max_body_size 20m;

    # Reverb websockets
    location ~ ^/apps?(/|$) {
        proxy_pass http://127.0.0.1:8080;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_read_timeout 86400;
    }

    # Application
    location / {
        proxy_pass http://127.0.0.1:8000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Host $host;
        proxy_set_header X-Forwarded-Port $server_port;
    }
}

sudo ln -s /etc/nginx/sites-available/tidal-ptc /etc/nginx/sites-enabled/
sudo certbot --nginx -d ptc.example.org
sudo nginx -t && sudo systemctl reload nginx

Build from source

Clone the repository into /opt/tidal-ptc and run the setup script there (or pass --dir). When a Dockerfile is present, the script builds the images instead of pulling them and keeps your checkout’s docker-compose.yml. When doing it by hand, use docker compose build and docker compose up -d --build wherever this guide says pull.

Day-to-day operations

Run these from /opt/tidal-ptc.

Task	Command
Run Artisan	docker compose exec app php artisan <command>
Tail logs	docker compose logs -f app queue reverb
Change .env	Edit, then docker compose up -d (containers are recreated with the new values)
Stop the stack	docker compose down (keeps the postgres and redis volumes)

Danger

docker compose down -v deletes the postgres and redis volumes, and with them all your data. Take a backup first.

Related

• First run
• Configuration
• Updating
• Backups
• Troubleshooting