Add docker-compose.yml

[grantfitzsimmons]

This was motivated by moving to AWS in Docker, but we might as well properly support deploying the Web Portal this way. This is more tuned for development than it is for production use, and we need to package this and bake everything into the image on Docker Hub. For SSL, we should use a dedicated reverse proxy container and not manage Nginx in the webportal service and SSL on the host.

For now, this is an improvement over installing locally and building the portals as we had in the past.

version: "3.8"

services:
  webportal:
    build:
      context: .
      dockerfile: Dockerfile
    image: webportal-service:improve-build
    container_name: webportal
    ports:
      - "80:80"
      - "443:443"
    volumes:
      # Project files
      - .:/home/specify/webportal-installer

      # SSL and certs
      - /etc/letsencrypt/live/webportal.specifycloud.org:/etc/nginx/ssl
      - /etc/letsencrypt:/etc/letsencrypt
      - /etc/ssl/certs/dhparam.pem:/etc/ssl/certs/dhparam.pem

      # Static content
      - /var/www:/var/www

      # Specify exports and customizations
      # - ./specify_exports:/home/specify/webportal-installer/specify_exports
      # - ./custom_settings:/home/specify/webportal-installer/custom_settings

      # Custom images
      - ./custom-images:/home/specify/

    restart: unless-stopped