Docker, mount volumes as readonly

Question

I am working with Docker, and I want to mount a dynamic folder that changes a lot (so I would not have to make a Docker image for each execution, which would be too costly), but

Answer 1

docker-compose

Here is a proper way to specify read-only volume in docker-compose:

version: "3.2" # Use version 3.2 or above
services:
  my_service:
    image: my:image
    volumes:
      - type: volume
        source: volume-name
        target: /path/in/container
        read_only: true
volumes:
  volume-name:

https://docs.docker.com/compose/compose-file/#long-syntax-3