peertube/support/doc/production.md

# Production guide

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

## Installation

Please don't install PeerTube for production on a device behind a low bandwidth connection (example: your ADSL link).
If you want information about the appropriate hardware to run PeerTube, please see the [FAQ](https://github.com/Chocobozzz/PeerTube/blob/develop/FAQ.md#should-i-have-a-big-server-to-run-peertube).

### 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
```

**On FreeBSD**

```
$ sudo pw useradd -n peertube -d /var/www/peertube -s /usr/local/bin/bash -m
$ sudo passwd peertube
```
or use `adduser` to create it interactively.

### Database

Create the production database and a peertube user inside PostgreSQL:

```
$ sudo -u postgres createuser -P peertube
```

Here you should enter a password for postgresql user peertube, it should be copied in production.yaml file.
Don’t just hit enter else it will be empty, default production yaml uses peertube here, but it is better you pick a stronger one.

```
$ sudo -u postgres createdb -O peertube -E UTF8 -T template0 peertube_prod
```


Then enable extensions PeerTube needs:

```
$ sudo -u postgres psql -c "CREATE EXTENSION pg_trgm;" peertube_prod
$ sudo -u postgres psql -c "CREATE EXTENSION unaccent;" 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
```

Download the latest version of the Peertube client, unzip it and remove the zip
```
$ 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 -q peertube-${VERSION}.zip && sudo -u peertube rm peertube-${VERSION}.zip
```

Install Peertube:
```
$ cd /var/www/peertube
$ 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 the default configuration file that contains the default configuration provided by PeerTube.
You **must not** update this file.

```
$ cd /var/www/peertube
$ sudo -u peertube cp peertube-latest/config/default.yaml config/default.yaml
```

Now copy the production 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
and database configuration (`webserver`, `database`, `redis`, `smtp` and `admin.email` sections in particular).
Keys defined in `config/production.yaml` will override keys defined in `config/default.yaml`.

**PeerTube does not support webserver host change**. Even though [PeerTube CLI can help you to switch hostname](https://docs.joinpeertube.org/maintain-tools?id=update-hostjs) there's no official support for that since it is a risky operation that might result in unforeseen errors.

### 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 set the domain for the webserver configuration file.
Replace `[peertube-domain]` with the domain for the peertube server.

```
$ sudo sed -i 's/${WEBSERVER_HOST}/[peertube-domain]/g' /etc/nginx/sites-available/peertube
$ sudo sed -i 's/${PEERTUBE_HOST}/127.0.0.1:9000/g' /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
```

Activate the configuration file:

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

To generate the certificate for your domain as required to make https work you can use [Let's Encrypt](https://letsencrypt.org/):

```
$ sudo systemctl stop nginx
$ sudo certbot certonly --standalone --post-hook "systemctl restart nginx"
$ sudo systemctl reload nginx
```

Now you have the certificates you can reload nginx:

```
$ sudo systemctl reload nginx
```

Certbot should have installed a cron to automatically renew your certificate.
Since our nginx template supports webroot renewal, we suggest you to update the renewal config file to use the `webroot` authenticator:

```
$ # Replace authenticator = standalone by authenticator = webroot
$ # Add webroot_path = /var/www/certbot
$ sudo vim /etc/letsencrypt/renewal/your-domain.com.conf
```

**FreeBSD**
On FreeBSD you can use [Dehydrated](https://dehydrated.io/) `security/dehydrated` for [Let's Encrypt](https://letsencrypt.org/)

```
$ sudo pkg install dehydrated
```

### TCP/IP Tuning

**On Linux**

```
$ sudo cp /var/www/peertube/peertube-latest/support/sysctl.d/30-peertube-tcp.conf /etc/sysctl.d/
$ sudo sysctl -p /etc/sysctl.d/30-peertube-tcp.conf
```

Your distro may enable this by default, but at least Debian 9 does not, and the default FIFO
scheduler is quite prone to "Buffer Bloat" and extreme latency when dealing with slower client
links as we often encounter in a video server.

### systemd

If your OS uses systemd, copy the configuration template:

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

Check the service file (PeerTube paths and security directives):

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


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
```

**FreeBSD**
On FreeBSD, copy the startup script and update rc.conf:

```
$ sudo install -m 0555 /var/www/peertube/peertube-latest/support/freebsd/peertube /usr/local/etc/rc.d/
$ sudo sysrc peertube_enable="YES"
```

Run:

```
$ sudo service peertube start
```

### OpenRC

If your OS uses OpenRC, copy the service script:

```
$ sudo cp /var/www/peertube/peertube-latest/support/init.d/peertube /etc/init.d/
```

If you want to start PeerTube on boot:

```
$ sudo rc-update add peertube default
```

Run and print last logs:

```
$ sudo /etc/init.d/peertube start
$ tail -f /var/log/peertube/peertube.log
```

### Administrator

The administrator password is automatically generated and can be found in the PeerTube
logs (path defined in `production.yaml`). You can also 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
```

Alternatively you can set the environment variable `PT_INITIAL_ROOT_PASSWORD`,
to your own administrator password, although it must be 6 characters or more.

### What now?

Now your instance is up you can:

 * Add your instance to the public PeerTube instances index if you want to: https://instances.joinpeertube.org/
 * Check [available CLI tools](/support/doc/tools.md)

## Upgrade

### PeerTube instance

**Check the changelog (in particular BREAKING CHANGES!):** https://github.com/Chocobozzz/PeerTube/blob/develop/CHANGELOG.md

#### Auto

The password it asks is PeerTube's database user password.

```
$ cd /var/www/peertube/peertube-latest/scripts && sudo -H -u peertube ./upgrade.sh
```

#### Manually

Make a SQL backup

```
$ SQL_BACKUP_PATH="backup/sql-peertube_prod-$(date -Im).bak" && \
    cd /var/www/peertube && sudo -u peertube mkdir -p backup && \
    sudo -u postgres pg_dump -F c peertube_prod | sudo -u peertube tee "$SQL_BACKUP_PATH" >/dev/null
```

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 -H -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 unlink ./peertube-latest && \
    sudo -u peertube ln -s versions/peertube-${VERSION} ./peertube-latest
```

### nginx

Check changes in nginx configuration:

```
$ cd /var/www/peertube/versions
$ diff "$(ls --sort=t | head -2 | tail -1)/support/nginx/peertube" "$(ls --sort=t | head -1)/support/nginx/peertube"
```

### systemd

Check changes in systemd configuration:

```
$ cd /var/www/peertube/versions
$ diff "$(ls --sort=t | head -2 | tail -1)/support/systemd/peertube.service" "$(ls --sort=t | head -1)/support/systemd/peertube.service"
```

### Restart PeerTube

If you changed your nginx configuration:

```
$ sudo systemctl reload nginx
```

If you changed your systemd configuration:

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

Restart PeerTube and check the logs:

```
$ sudo systemctl restart peertube && sudo journalctl -fu 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 && sudo -u peertube unlink ./peertube-latest && \
    sudo -u peertube ln -s "versions/peertube-$OLD_VERSION" peertube-latest && \
    sudo -u postgres pg_restore -c -C -d postgres "$SQL_BACKUP_PATH" && \
    sudo systemctl restart peertube
```