Try commands for building and running backend tests in docker

.github/workflows/ci-pipeline.yml

@@ -6,5 +6,6 @@ jobs:
     name: Build and test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - run: echo Hello World
+      - uses: actions/checkout@v2
+      - run: docker build --target test --tag backend:test ./backend/
+      - run: docker run --env-file backend/.env backend:test

README.md

@@ -32,12 +32,16 @@ From the project root run `docker compose up`
 
 Build backend docker image with `docker build --target development --tag backend:dev ./backend/`
 
+Build backend tests docker image with `docker build --target test --tag backend:test ./backend/`
+
 Build the frontend docker image with `docker build --tag frontend:dev ./frontend/`
 
 Run backend in development mode from the backend folder with `docker run --env-file .env -p 5000:5000 --mount "type=bind,source=$(pwd)/src,target=/backend/src" backend:dev`
 
 Run frontend in development mode from the backend folder with `docker run -it --init --env-file .env -p 1234:1234 --mount "type=bind,source=$(pwd)/src,target=/frontend/src" frontend:dev --entrypoint=/bin/bash`
 
+Run backend tests docker image from the project root with `docker run --env-file backend/.env backend:test`
+
 ## Provisioning VMs with Ansible
 
 VMs can be prepared and configured with Ansible from the `/ansible` directory. To set up managed nodes, set the IP addresses in `ansible-inventory`. Your control node will need to have SSH access to these nodes (this can be done from a mac, or another VM with the repo installed).