lemmy/docs/src/administration_install_docker.md

Make sure you have both docker and docker-compose(>=1.24.0) installed:

mkdir lemmy/
cd lemmy/
wget https://raw.githubusercontent.com/dessalines/lemmy/master/docker/prod/docker-compose.yml
wget https://raw.githubusercontent.com/dessalines/lemmy/master/docker/lemmy.hjson
# Edit lemmy.hjson to do more configuration
docker-compose up -d

and go to http://localhost:8536.

A sample nginx config, could be setup with:

wget https://raw.githubusercontent.com/dessalines/lemmy/master/ansible/templates/nginx.conf
# Replace the {{ vars }}
sudo mv nginx.conf /etc/nginx/sites-enabled/lemmy.conf

Updating

To update to the newest version, run:

wget https://raw.githubusercontent.com/dessalines/lemmy/master/docker/prod/docker-compose.yml
docker-compose up -d