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Docker Overview

Docker gives dev/prod parity and powers CI and production deploys.

  • Development — docker-compose.dev.yml + config/.env.dev; MongoDB, backend, frontend, Mongo Express; hot reload.
  • Production — docker-compose.prod.yml (or dev compose with prod env) + config/.env.prod.
  • Mock production — docker-compose.mock-prod.yml for integration testing.
  • CI / testing stack — Override uses project name testing_hackportal, ports 9080/9081 so it doesn't conflict with local dev.
  • Blue-green — Pipeline deploys TEST_PROD by pulling images by digest, starting the new color, health-checking, then switching the proxy.

Each environment uses its own Compose project name so the CLI and pipeline don't tear down each other's containers.

Related: Development, Blue-green deploy