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# Docker guide
This guide requires [docker](https://www.docker.com/community-edition) and
[docker-compose](https://docs.docker.com/compose/install/).
## Production
### Install
**PeerTube does not support webserver host change**. Keep in mind your domain
name is definitive after your first PeerTube start.
#### Go to your workdir
_note_: the guide that follows assumes an empty workdir, but you can also clone the repository, use the master branch and `cd support/docker/production`.
```shell
cd /your/peertube/directory
```
#### Get the latest Compose file
```shell
curl https://raw.githubusercontent.com/chocobozzz/PeerTube/develop/support/docker/production/docker-compose.yml > docker-compose.yml
```
View the source of the file you're about to download: [docker-compose.yml](https://github.com/Chocobozzz/PeerTube/blob/develop/support/docker/production/docker-compose.yml)
#### Get the latest env_file
```shell
curl https://raw.githubusercontent.com/Chocobozzz/PeerTube/develop/support/docker/production/.env > .env
```
View the source of the file you're about to download: [.env](https://github.com/Chocobozzz/PeerTube/blob/develop/support/docker/production/.env)
#### Tweak the `docker-compose.yml` file there according to your needs
```shell
$EDITOR ./docker-compose.yml
```
#### Then tweak the `.env` file to change the environment variables settings
```shell
$EDITOR ./.env
```
In the downloaded example [.env](https://github.com/Chocobozzz/PeerTube/blob/develop/support/docker/production/.env), you must replace:
- `<MY POSTGRES USERNAME>`
- `<MY POSTGRES PASSWORD>`
- `<MY DOMAIN>` without 'https://'
- `<MY EMAIL ADDRESS>`
Other environment variables are used in
[/support/docker/production/config/custom-environment-variables.yaml](https://github.com/Chocobozzz/PeerTube/blob/develop/support/docker/production/config/custom-environment-variables.yaml) and can be
intuited from usage.
#### Webserver
*The docker compose file includes a configured web server. You can skip this part and comment the appropriate section in the docker compose if you use another webserver/proxy.*
Install the template that the nginx container will use.
The container will generate the configuration by replacing `${WEBSERVER_HOST}` and `${PEERTUBE_HOST}` using your docker compose env file.
```shell
mkdir -p docker-volume/nginx
curl https://raw.githubusercontent.com/Chocobozzz/PeerTube/develop/support/nginx/peertube > docker-volume/nginx/peertube
```
You need to manually generate the first SSL/TLS certificate using Let's Encrypt:
```shell
mkdir -p docker-volume/certbot
docker run -it --rm --name certbot -p 80:80 -v "$(pwd)/docker-volume/certbot/conf:/etc/letsencrypt" certbot/certbot certonly --standalone
```
A dedicated container in the docker-compose will automatically renew this certificate and reload nginx.
#### Test your setup
Run your containers:
```shell
docker-compose up
```
### Obtaining your automatically-generated admin credentials
Now that you've installed your PeerTube instance you'll want to grep your peertube container's logs for the `root` password. You're going to want to run `docker-compose logs peertube | grep -A1 root` to search the log output for your new PeerTube's instance admin credentials which will look something like this.
```bash
$ docker-compose logs peertube | grep -A1 root
peertube_1 | [example.com:443] 2019-11-16 04:26:06.082 info: Username: root
peertube_1 | [example.com:443] 2019-11-16 04:26:06.083 info: User password: abcdefghijklmnop
```
### Obtaining Your Automatically Generated DKIM DNS TXT Record
[DKIM](https://en.wikipedia.org/wiki/DomainKeys_Identified_Mail) signature sending and RSA keys generation are enabled by the default Postfix image `mwader/postfix-relay` with [OpenDKIM](http://www.opendkim.org/).
Run `cat ./docker-volume/opendkim/keys/*/*.txt` to display your DKIM DNS TXT Record containing the public key to configure to your domain :
```bash
$ cat ./docker-volume/opendkim/keys/*/*.txt
peertube._domainkey.mydomain.tld. IN TXT ( "v=DKIM1; h=sha256; k=rsa; "
"p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0Dx7wLGPFVaxVQ4TGym/eF89aQ8oMxS9v5BCc26Hij91t2Ci8Fl12DHNVqZoIPGm+9tTIoDVDFEFrlPhMOZl8i4jU9pcFjjaIISaV2+qTa8uV1j3MyByogG8pu4o5Ill7zaySYFsYB++cHJ9pjbFSC42dddCYMfuVgrBsLNrvEi3dLDMjJF5l92Uu8YeswFe26PuHX3Avr261n"
"j5joTnYwat4387VEUyGUnZ0aZxCERi+ndXv2/wMJ0tizq+a9+EgqIb+7lkUc2XciQPNuTujM25GhrQBEKznvHyPA6fHsFheymOuB763QpkmnQQLCxyLygAY9mE/5RY+5Q6J9oDOQIDAQAB" ) ; ----- DKIM key peertube for mydomain.tld
```
### Administrator password
See the production guide ["Administrator" section](https://docs.joinpeertube.org/install-any-os?id=administrator)
### What now?
See the production guide ["What now" section](https://docs.joinpeertube.org/install-any-os?id=what-now).
### Upgrade
**Important:** Before upgrading, check you have all the `storage` fields in your [production.yaml file](https://github.com/Chocobozzz/PeerTube/blob/develop/support/docker/production/config/production.yaml).
Pull the latest images and rerun PeerTube:
```shell
$ cd /your/peertube/directory
$ docker-compose pull
$ docker-compose up -d
```
## Build your own Docker image
```shell
$ git clone https://github.com/chocobozzz/PeerTube /tmp/peertube
$ cd /tmp/peertube
$ docker build . -f ./support/docker/production/Dockerfile.buster
```
## Development
We don't have a Docker image for development. See [the CONTRIBUTING guide](https://github.com/Chocobozzz/PeerTube/blob/develop/.github/CONTRIBUTING.md#develop) for more information on how you can hack PeerTube!
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