How to run Redmine on Docker?

To run Redmine on Docker, install Docker and Docker Compose. Use a prebuilt image by first running a PostgreSQL container, then the Redmine container (sameersbn/redmine) and access it at http://localhost:10083 (default login: admin/admin). Alternatively, use docker-compose up with the provided docker-compose.yml. 

For customization, build your own image from Redmine’s base, and for production, use external volumes and secure environment variables.