Host several sites using Docker containers

This demo shows how to host several websites (running inside Docker containers) on a single server and automatically create/renew SSL certificates to enable HTTPS on each website.

To achieve that we can use:

1. nginxproxy/nginx-proxy: Automated Nginx reverse proxy for docker containers. Together with nginx it generates its reverse proxy configs and reloads nginx when containers are started and stopped.
2. nginxproxy/acme-companion: Automated ACME SSL certificate generation for nginx-proxy. It handles the automated creation, renewal and use of SSL certificates for proxied Docker containers through the ACME protocol.

Quick start

1. Make sure that your server has git, docker and docker compose installed and nobody listen port 80.
2. Clone this repository:

git clone https://github.com/halfdata/multisite-docker.git

3. Jump into multisite-docker folder/directory:

cd multisite-docker

4. Edit nginx-proxy/docker-compose.yml and set your email address as a value of DEFAULT_EMAIL environment variable in nginx-proxy-acme container. This email is used to get SSL certificates from Letsencrypt.
5. Edit domain1.tld/docker-compose.yml, domain2.tld/docker-compose.yml, domain3.tld/docker-compose.yml and set required values of VIRTUAL_HOST and LETSENCRYPT_HOST environment variables (domains pointing to the IP of the server).
6. Make file run.sh executable:

chmod +x run.sh

7. Start deployment:

./run.sh

That's it.