How do you enable least-privilege access for Docker Compose?

Enabling least-privilege access for Docker Compose is essential for maintaining security in your application deployments. By restricting what services can access, modify, or manage containers, you can minimize the risk of unauthorized access or breaches.

Steps to Enable Least-Privilege Access

  1. Run containers with non-root users.
  2. Utilize Docker Compose's user directive.
  3. Restrict network access with custom networks.
  4. Control container capabilities and privileges.

Example Docker Compose Configuration

version: '3.8' services: app: image: myapp:latest user: '1001:1001' # non-root user networks: - app-network db: image: postgres:latest networks: - app-network networks: app-network: driver: bridge driver_opts: com.docker.network.bridge.default_advertise_addr: local internal: true # Only allows communication between containers.

Docker Docker Compose least privilege container security

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