Add Makefile and start ci

.github/workflows/ci.yml

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+on:
+  push:
+    branches:
+      - master 
+jobs:
+
+  python-unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Set Up Python
+        uses: actions/setup-python@v4
+
+      - name: Run Python Unit Tests
+        run: |
+          make python_tests
+
+  changed-files:
+    runs-on: ubuntu-latest
+    needs:
+      - python-unit-tests
+    outputs:
+      files_matrix: ${{ steps.print-changed-files.outputs.files_matrix }}
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Set Up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x' 
+
+      - name: Run Python Unit Tests
+        run: |
+          make python_tests
+
+      - name: Get Changed Files
+        id: changed-files
+        uses: tj-actions/changed-files@v45
+
+      - name: Print Changed Files
+        id: print-changed-files
+        run: |
+          make get_changed_files changed_files="${{ steps.changed-files.outputs.all_changed_files }}"

Makefile

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+.PHONY: get_changed_files python_tests
+
+changed_files := 
+
+get_changed_files:
+	python3 ./scripts/changed_files/changed_files.py $(changed_files)
+
+python_tests:
+	python3 -m unittest discover -s ./scripts/tests -p "*.py"

UserService/UserService.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

scripts/changed_files/changed_files.py

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+import json
+
+"""
+Identifies files that were changed to produce a matrix to run in git hub actions for updating the appropriate docker images.
+"""
+
+import sys
+
+files = sys.argv[1:]
+
+services = set(["auth-service", "sneaker-service", "order-service", "payment-service"])
+
+"""
+Generates a matrix of service names returning an array of strings
+"""
+def get_changed_files(files):
+
+    matrix = set()
+
+    for service in files:
+        service_directory = service.split("/")[0]
+
+        if service_directory in services:
+            matrix.add(service_directory)
+
+
+    return list(matrix)
+
+changed_files = get_changed_files(files)
+
+# Set as Output in github actions
+print(f"::set-output name=files_matrix::{json.dumps(changed_files)}")