modernleft-docs/Applications/quartz-docker.md

title	draft	date
quartz-docker	false	2025-01-16

quartz-docker image

docker pull code.modernleft.org/gravityfargo/quartz-docker:v4.4.0

This project runs Quartz 4, a fast, batteries-included static site generator, inside a Docker container. It transforms Markdown content into a fully functional website.

While Quartz provides Docker support, it requires additional configuration. This container simplifies the process significantly.

🚀 Features

• Easy Configuration – Customize settings using environment variables
• Automated Site Updates – Configurable cron job to fetch and rebuild content

🛠️ Getting Started

🐳 Docker Compose

1. Create a data directory and pull your existing content:

   git clone https://code.modernleft.org/gravityfargo/modernleft-docs.git quartz
   

2. Create a docker-compose.yml file:

   Minimal Example

   version: "3"
   services:
     quartz:
       image: code.modernleft.org/gravityfargo/quartz-docker:v4.4.0
       environment:
         - BASE_URL=https://example.com
       volumes:
         - ./quartz:/usr/share/nginx/html
       ports:
         - "80:80"
   

   BASE_URL

   The only required variable is BASE_URL. This sets both Quartz's baseUrl and Nginx's server_name.

   Recommended Setup

   version: "3"
   services:
     quartz:
       image: code.modernleft.org/gravityfargo/quartz-docker:v4.4.0
       environment:
         - BASE_URL=https://example.com
         - ENABLE_CRON=true
         - BUILD_SCHEDULE="0 * * * *"
       volumes:
         - ./quartz:/usr/share/nginx/html
         - node_modules:/usr/share/nginx/html/node_modules
       ports:
         - "80:80"
   volumes:
     node_modules:
   

   Persistent node_modules Volume

   To keep the image small, node_modules are not included. When the container is run, they are downloaded to /usr/share/nginx/html/node_modules. Mounting this as a volume ensures they persist between container runs, reducing setup time.

   Enabling Cron Jobs

   Setting ENABLE_CRON to true and defining BUILD_SCHEDULE as a cron expression allows npx quartz build to run on a schedule. That command pulls the latest content and rebuilds the site.

   Example:

   environment:
     - ENABLE_CRON=true
     - BUILD_SCHEDULE=" * * * *" # Runs every hour
   

📌 Environment Variables

See a list of all environment variables here.

Variable	Description	Default Value
BASE_URL	The base URL for the site (Required)	None
ENABLE_CRON	Enables scheduled builds (true or false)	false
BUILD_SCHEDULE	Cron expression for scheduling site builds	0 0 * * * (Daily at midnight)

This setup ensures a fully automated Quartz deployment with minimal configuration.