Improve docker deployment by using multi stage building

.github/workflows/backend-tests-database-blob.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   run_tests_blob_architecture:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4

.github/workflows/backend-tests-streaming-serverless-function.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   run_tests_streaming_serverless:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -28,7 +28,7 @@ jobs:
           pip install -r requirements-test.txt
 
       - name: Run tests Streaming Serverless/Lambda function Architecture
-        working-directory: Backend/
+        working-directory: Backend
         run: |
           python -m pytest tests/
         env:

.github/workflows/frontend-tests.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
 
     steps:
       - name: Check out code

Backend/Dockerfile

@@ -1,14 +1,21 @@
-
-FROM python:3.11-slim
+FROM python:3.11-slim AS builder
 
 WORKDIR /code
 COPY ./requirements.txt /code/requirements.txt
-RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
+RUN python -m pip wheel -r requirements.txt --no-cache-dir --no-deps --wheel-dir /wheels
+
+FROM python:3.11-slim AS runner
+
+WORKDIR /code
+COPY --from=builder /wheels /wheels
+
+RUN python -m pip install --no-cache-dir /wheels/* && rm -r /wheels
 COPY ./app /code/app
 
-WORKDIR /code/
-CMD ["python", "-m", "app"]
+ENTRYPOINT [ "python", "-m", "app" ]
+EXPOSE 8000
+
 #CMD ["tail", "-f", "/dev/null"]
 
 #docker build -t spotify_electron_backend_image .