# Production guide

  * [Installation](#installation)
  * [Upgrade](#upgrade) 

## Installation

**Please don't install PeerTube for production on a small device behind a low bandwidth connection because it could slow down the fediverse.**

### Dependencies

Follow the steps of the [dependencies guide](dependencies.md).

### PeerTube user

Create a `peertube` user with `/var/www/peertube` home:

```
$ sudo useradd -m -d /var/www/peertube -s /bin/bash -p peertube peertube
```

Set its password:
```
$ sudo passwd peertube
```

### Database

Create the production database and a peertube user inside PostgreSQL:

```
$ sudo -u postgres createuser -P peertube
$ sudo -u postgres createdb -O peertube peertube_prod
```

### Prepare PeerTube directory

Fetch the latest tagged version of Peertube
```
$ VERSION=$(curl -s https://api.github.com/repos/chocobozzz/peertube/releases/latest | grep tag_name | cut -d '"' -f 4) && echo "Latest Peertube version is $VERSION"
```

Open the peertube directory, create a few required directories
```
$ cd /var/www/peertube && sudo -u peertube mkdir config storage versions && cd versions
```

Download the latest version of the Peertube client, unzip it and remove the zip
```
$ sudo -u peertube wget -q "https://github.com/Chocobozzz/PeerTube/releases/download/${VERSION}/peertube-${VERSION}.zip"
$ sudo -u peertube unzip peertube-${VERSION}.zip && sudo -u peertube rm peertube-${VERSION}.zip
```

Install Peertube
```
$ cd ../ && sudo -u peertube ln -s versions/peertube-${VERSION} ./peertube-latest
$ cd ./peertube-latest && sudo -H -u peertube yarn install --production --pure-lockfile
```

### PeerTube configuration

Copy example configuration:

```
$ cd /var/www/peertube && sudo -u peertube cp peertube-latest/config/production.yaml.example config/production.yaml
```

Then edit the `config/production.yaml` file according to your webserver
configuration.

### Webserver

We only provide official configuration files for Nginx.

Copy the nginx configuration template:

```
$ sudo cp /var/www/peertube/peertube-latest/support/nginx/peertube /etc/nginx/sites-available/peertube
```

Then modify the webserver configuration file. Please pay attention to the `alias` keys of the static locations.
It should correspond to the paths of your storage directories (set in the configuration file inside the `storage` key).

```
$ sudo vim /etc/nginx/sites-available/peertube
```

Your Mileage May Vary, but what follows is an example of configuration for nginx with a certificate made via `certbot` ([other utilities exist](https://letsencrypt.org/docs/client-options/)):

```
server {
  listen 80;
  listen [::]:80;
  server_name peertube.example.com;

  access_log /var/log/nginx/peertube.example.com.access.log;
  error_log /var/log/nginx/peertube.example.com.error.log;

  rewrite ^ https://$server_name$request_uri? permanent;
}

server {
  listen 443 ssl http2;
  listen [::]:443 ssl http2;
  server_name peertube.example.com;

  # For example with Let's Encrypt (you need a certificate to run https)
  ssl_certificate      /etc/letsencrypt/live/peertube.example.com/fullchain.pem;
  ssl_certificate_key  /etc/letsencrypt/live/peertube.example.com/privkey.pem;
  
  # Security hardening (as of 11/02/2018)
  ssl_protocols TLSv1.3, TLSv1.2;# TLSv1.3 requires nginx >= 1.13.0 else use only TLSv1.2
  ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
  ssl_prefer_server_ciphers on;
  ssl_ecdh_curve secp384r1; # Requires nginx >= 1.1.0
  ssl_session_timeout  10m;
  ssl_session_cache shared:SSL:10m;
  ssl_session_tickets off; # Requires nginx >= 1.5.9
  ssl_stapling on; # Requires nginx >= 1.3.7
  ssl_stapling_verify on; # Requires nginx => 1.3.7
  resolver $DNS-IP-1 $DNS-IP-2 valid=300s;
  resolver_timeout 5s;
  add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
  add_header X-Frame-Options DENY;
  add_header X-Content-Type-Options nosniff;
  add_header X-XSS-Protection "1; mode=block";
  add_header X-Robots-Tag none;
  
  access_log /var/log/nginx/peertube.example.com.access.log;
  error_log /var/log/nginx/peertube.example.com.error.log;

  location ^~ '/.well-known/acme-challenge' {
    default_type "text/plain";
    root /var/www/certbot;
  }

  location ~ ^/client/(.*\.(js|css|woff2|otf|ttf|woff|eot))$ {
    add_header Cache-Control "public, max-age=31536000, immutable";

    alias /var/www/peertube/peertube-latest/client/dist/$1;
  }

  location ~ ^/static/(thumbnails|avatars)/(.*)$ {
    add_header Cache-Control "public, max-age=31536000, immutable";

    alias /var/www/peertube/storage/$1/$2;
  }

  location / {
    proxy_pass http://localhost:9000;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    # For the video upload
    client_max_body_size 2G;
    proxy_connect_timeout       600;
    proxy_send_timeout          600;
    proxy_read_timeout          600;
    send_timeout                600;
  }

  # Bypass PeerTube webseed route for better performances
  location /static/webseed {
    # Clients usually have 4 simultaneous webseed connections, so the real limit is 3MB/s per client
    limit_rate 800k;
    
    if ($request_method = 'OPTIONS') {
      add_header 'Access-Control-Allow-Origin' '*';
      add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
      add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
      add_header 'Access-Control-Max-Age' 1728000;
      add_header 'Content-Type' 'text/plain charset=UTF-8';
      add_header 'Content-Length' 0;
      return 204;
    }

    if ($request_method = 'GET') {
      add_header 'Access-Control-Allow-Origin' '*';
      add_header 'Access-Control-Allow-Methods' 'GET, OPTIONS';
      add_header 'Access-Control-Allow-Headers' 'Range,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';

      # Don't spam access log file with byte range requests
      access_log off;
    }

    alias /var/www/peertube/storage/videos;
  }

  # Websocket tracker
  location /tracker/socket {
    # Peers send a message to the tracker every 15 minutes
    # Don't close the websocket before this time
    proxy_read_timeout 1200s;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_http_version 1.1;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $host;
    proxy_pass http://localhost:9000;
  }
}
```

To generate the certificate for your domain as required to make https work, you have two alternatives (note that the second command modifies itself the Nginx configuration to point the concerned server blocks to its certificate):

```
$ sudo certbot --authenticator standalone certonly -d peertube.example.com && nginx -t && systemctl reload nginx
```

```
$ sudo certbot --authenticator standalone --installer nginx --post-hook "nginx -t && systemctl reload nginx"
```

Remember your certificate will expire in 90 days, and thus needs renewal.

Activate the configuration file:

```
$ sudo ln -s /etc/nginx/sites-available/peertube /etc/nginx/sites-enabled/peertube
$ sudo systemctl reload nginx
```

### Systemd

Copy the SystemD configuration template:

```
$ sudo cp /var/www/peertube/peertube-latest/support/systemd/peertube.service /etc/systemd/system/
```

Update the service file:

```
$ sudo vim /etc/systemd/system/peertube.service
```

It should look like this:

```
[Unit]
Description=PeerTube daemon
After=network.target

[Service]
Type=simple
Environment=NODE_ENV=production
Environment=NODE_CONFIG_DIR=/var/www/peertube/config
User=peertube
Group=peertube
ExecStart=/usr/bin/npm start
WorkingDirectory=/var/www/peertube/peertube-latest
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=peertube
Restart=always

[Install]
WantedBy=multi-user.target
```


Tell systemd to reload its config:

```
$ sudo systemctl daemon-reload
```

If you want to start PeerTube on boot:

```
$ sudo systemctl enable peertube
```

### Run

```
$ sudo systemctl start peertube
$ sudo journalctl -feu peertube
```

### Administrator

The administrator password is automatically generated and can be found in the
logs. You can set another password with:

```
$ cd /var/www/peertube/peertube-latest && NODE_CONFIG_DIR=/var/www/peertube/config NODE_ENV=production npm run reset-password -- -u root
```

## Upgrade
#### Auto

Via the bash Script :

```
$ su - peertube
$ cd scripts && ./upgrade.sh
$ exit
$ systemctl restart peertube
$ systemctl status peertube
```

#### Manuel
Make a SQL backup

```
$ SQL_BACKUP_PATH="backup/sql-peertube_prod-$(date -Im).bak" && \
    cd /var/www/peertube && sudo -u peertube mkdir -p backup && \
    sudo pg_dump -U peertube -W -h localhost -F c peertube_prod -f "$SQL_BACKUP_PATH"
```

Fetch the latest tagged version of Peertube:

```
$ VERSION=$(curl -s https://api.github.com/repos/chocobozzz/peertube/releases/latest | grep tag_name | cut -d '"' -f 4) && echo "Latest Peertube version is $VERSION"
```

Download the new version and unzip it:

```
$ cd /var/www/peertube/versions && \
    sudo -u peertube wget -q "https://github.com/Chocobozzz/PeerTube/releases/download/${VERSION}/peertube-${VERSION}.zip" && \
    sudo -u peertube unzip -o peertube-${VERSION}.zip && \
    sudo -u peertube rm peertube-${VERSION}.zip
```

Install node dependencies:

```
$ cd /var/www/peertube/versions/peertube-${VERSION} && \
    sudo -u peertube yarn install --production --pure-lockfile
```

Copy new configuration defaults values and update your configuration file:

```
$ sudo -u peertube cp /var/www/peertube/versions/peertube-${VERSION}/config/default.yaml /var/www/peertube/config/default.yaml
$ diff /var/www/peertube/versions/peertube-${VERSION}/config//production.yaml.example /var/www/peertube/config/production.yaml
```

Change the link to point to the latest version:

```
$ cd /var/www/peertube && \
    sudo rm ./peertube-latest && \
    sudo -u peertube ln -s versions/peertube-${VERSION} ./peertube-latest
```


Restart PeerTube:
```
$ sudo systemctl restart peertube
```

### Things went wrong? 

Change `peertube-latest` destination to the previous version and restore your SQL backup:

```
$ OLD_VERSION="v0.42.42" && SQL_BACKUP_PATH="backup/sql-peertube_prod-2018-01-19T10:18+01:00.bak" && \
    cd /var/www/peertube && rm ./peertube-latest && \
    sudo -u peertube ln -s "versions/peertube-$OLD_VERSION" peertube-latest && \
    pg_restore -U peertube -W -h localhost -c -d peertube_prod "$SQL_BACKUP_PATH"
    sudo systemctl restart peertube
```