From 7f96f9774d4b6ae4ea6c61c86c28821108758139 Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Wed, 20 Aug 2025 22:25:37 +0200
Subject: [PATCH 1/7] Refactor workflows and update submodule references

- Streamlined pr_to_master.yml and push_pr_to_dev.yml for clarity and efficiency
- Reduced redundant steps and improved job structure in CI workflows
- Updated submodule references for all services to latest commits
---
 .github/workflows/pr_to_master.yml   | 128 ++++++++++++++-------------
 .github/workflows/push_pr_to_dev.yml |  63 +++----------
 submodules/api-gateway               |   2 +-
 submodules/book-service              |   2 +-
 submodules/registry-service          |   2 +-
 submodules/review-service            |   2 +-
 submodules/user-service              |   2 +-
 7 files changed, 85 insertions(+), 116 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index 7133dea..bb1e638 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -1,5 +1,11 @@
 # Execute only if it's a PR which comes from dev
+
 name: PR to master
+
+# This pipeline runs everytime there is a PR on master.
+# Because the changes on the submodules are track on their own GitHub project,
+# I intentionally don't listen to the changes of each submodule in order to trigger this pipeline.
+
 on:
   pull_request:
     branches:
@@ -21,50 +27,11 @@ jobs:
             echo "✅ PR from dev to master authorized."
           fi
 
-  #-----------------------------------------------------------------------
-  #--- Detect the changes
-  #-----------------------------------------------------------------------
-  changes:
-    runs-on: ubuntu-latest
-    needs: validate-branch
-    if: success()
-    steps:
-      - name: Checkout the main repository
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Detect changes
-        id: filter
-        uses: dorny/paths-filter@v3
-        with:
-          filters: |
-            user:
-              - 'submodules/user-service/**'
-            book:
-              - 'submodules/book-service/**'
-            review:
-              - 'submodules/review-service/**'
-            api_gateway:
-              - 'submodules/api-gateway/**'
-            registry_service:
-              - 'submodules/registry-service/**'
-            frontend:
-              - 'mflibrary-frontend/**'
-    outputs:
-      user: ${{ steps.filter.outputs.user }}
-      book: ${{ steps.filter.outputs.book }}
-      review: ${{ steps.filter.outputs.review }}
-      api_gateway: ${{ steps.filter.outputs.api_gateway }}
-      registry_service: ${{ steps.filter.outputs.registry_service }}
-      frontend: ${{ steps.filter.outputs.frontend }}
-
   #-----------------------------------------------------------------------
   #--- Build and push user-service Docker image
   #-----------------------------------------------------------------------
   build-user-service:
-    needs: changes
-    if: needs.changes.outputs.user == 'true'
+    needs: validate-branch
     runs-on: ubuntu-latest
 
     steps:
@@ -97,14 +64,19 @@ jobs:
         with:
           context: ./submodules/user-service
           push: true
-          tags: ghcr.io/${{ github.repository }}/user-service:latest
+          tags: |
+            ghcr.io/${{ github.repository }}/user-service:${{ github.sha }}
+            ghcr.io/${{ github.repository }}/user-service:latest
+          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
+          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/user-service:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/user-service:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push book-service Docker image
   #-----------------------------------------------------------------------
   build-book-service:
-    needs: changes
-    if: needs.changes.outputs.book == 'true'
+    needs: validate-branch
     runs-on: ubuntu-latest
 
     steps:
@@ -137,14 +109,19 @@ jobs:
         with:
           context: ./submodules/book-service
           push: true
-          tags: ghcr.io/${{ github.repository }}/book-service:latest
+          tags: |
+            ghcr.io/${{ github.repository }}/book-service:${{ github.sha }}
+            ghcr.io/${{ github.repository }}/book-service:latest
+          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
+          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/book-service:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/book-service:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push review-service Docker image
   #-----------------------------------------------------------------------
   build-review-service:
-    needs: changes
-    if: needs.changes.outputs.review == 'true'
+    needs: validate-branch
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the submodule review-service
@@ -176,14 +153,19 @@ jobs:
         with:
           context: ./submodules/review-service
           push: true
-          tags: ghcr.io/${{ github.repository }}/review-service:latest
+          tags: |
+            ghcr.io/${{ github.repository }}/review-service:${{ github.sha }}
+            ghcr.io/${{ github.repository }}/review-service:latest
+          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
+          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/review-service:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/review-service:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push registry-service Docker image
   #-----------------------------------------------------------------------
   build-registry-service:
-    needs: changes
-    if: needs.changes.outputs.registry_service == 'true'
+    needs: validate-branch
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the submodule registry-service
@@ -215,14 +197,19 @@ jobs:
         with:
           context: ./submodules/registry-service
           push: true
-          tags: ghcr.io/${{ github.repository }}/registry-service:latest
+          tags: |
+            ghcr.io/${{ github.repository }}/registry-service:${{ github.sha }}
+            ghcr.io/${{ github.repository }}/registry-service:latest
+          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
+          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/registry-service:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/registry-service:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push api-gateway Docker image
   #-----------------------------------------------------------------------
   build-api-gateway:
-    needs: changes
-    if: needs.changes.outputs.api_gateway == 'true'
+    needs: validate-branch
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the submodule api-gateway
@@ -254,17 +241,23 @@ jobs:
         with:
           context: ./submodules/api-gateway
           push: true
-          tags: ghcr.io/${{ github.repository }}/api-gateway:latest
+          tags: |
+            ghcr.io/${{ github.repository }}/api-gateway:${{ github.sha }}
+            ghcr.io/${{ github.repository }}/api-gateway:latest
+          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
+          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/api-gateway:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/api-gateway:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push mflibrary-frontend Docker image
   #-----------------------------------------------------------------------
   build-mflibrary-frontend:
-    needs: changes
-    if: needs.changes.outputs.frontend == 'true'
+    needs: validate-branch
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Check out repository
+        uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -277,20 +270,33 @@ jobs:
         run: npm ci
         working-directory: ./mflibrary-frontend
 
+      - name: Install Chrome
+        run: sudo apt-get update && sudo apt-get install -y google-chrome-stable
+
       - name: Run frontend tests
-        run: npm test -- --watch=false --browsers=ChromeHeadless
+        run: npx ng test --watch=false --browsers=ChromeHeadless
         working-directory: ./mflibrary-frontend
 
-      - name: Login to GitHub Container Registry
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push mflibrary-frontend Docker image
-        uses: docker/build-push-action@v6
+      - name: Build and Push mflibrary-frontend Docker Image
+        uses: docker/build-push-action@v5
         with:
           context: ./mflibrary-frontend
           push: true
-          tags: ghcr.io/${{ github.repository }}/mflibrary-frontend:latest
+          file: ./mflibrary-frontend/Dockerfile
+          tags: |
+            ghcr.io/${{ github.repository }}/mflibrary-frontend:latest
+            ghcr.io/${{ github.repository }}/mflibrary-frontend:${{ github.sha }}
+          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
+          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/mflibrary-frontend:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/mflibrary-frontend:buildcache,mode=max
diff --git a/.github/workflows/push_pr_to_dev.yml b/.github/workflows/push_pr_to_dev.yml
index 6073c72..2851ff9 100644
--- a/.github/workflows/push_pr_to_dev.yml
+++ b/.github/workflows/push_pr_to_dev.yml
@@ -1,5 +1,11 @@
 # Execute on every push or PR to dev
+
 name: Push or PR to dev
+
+# This pipeline runs everytime there is a PR or push on dev.
+# Because the changes on the submodules are track on their own GitHub project,
+# I intentionally don't listen to the changes of each submodule in order to trigger this pipeline.
+
 on:
   push:
     branches:
@@ -7,49 +13,12 @@ on:
   pull_request:
     branches:
       - dev
-jobs:
-  #-----------------------------------------------------------------------
-  #--- Detect the changes
-  #-----------------------------------------------------------------------
-  changes:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the main repository
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Detect changes
-        id: filter
-        uses: dorny/paths-filter@v3
-        with:
-          filters: |
-            user:
-              - 'submodules/user-service/**'
-            book:
-              - 'submodules/book-service/**'
-            review:
-              - 'submodules/review-service/**'
-            api_gateway:
-              - 'submodules/api-gateway/**'
-            registry_service:
-              - 'submodules/registry-service/**'
-            frontend:
-              - 'mflibrary-frontend/**'
-    outputs:
-      user: ${{ steps.filter.outputs.user }}
-      book: ${{ steps.filter.outputs.book }}
-      review: ${{ steps.filter.outputs.review }}
-      api_gateway: ${{ steps.filter.outputs.api_gateway }}
-      registry_service: ${{ steps.filter.outputs.registry_service }}
-      frontend: ${{ steps.filter.outputs.frontend }}
 
+jobs:
   #-----------------------------------------------------------------------
   #--- Test user-service
   #-----------------------------------------------------------------------
   test-user-service:
-    needs: changes
-    if: needs.changes.outputs.user == 'true'
     runs-on: ubuntu-latest
 
     steps:
@@ -74,8 +43,6 @@ jobs:
   #--- Test book-service
   #-----------------------------------------------------------------------
   test-book-service:
-    needs: changes
-    if: needs.changes.outputs.book == 'true'
     runs-on: ubuntu-latest
 
     steps:
@@ -100,8 +67,6 @@ jobs:
   #--- Test review-service
   #-----------------------------------------------------------------------
   test-review-service:
-    needs: changes
-    if: needs.changes.outputs.review == 'true'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the submodule review-service
@@ -125,8 +90,6 @@ jobs:
   #--- Test registry-service
   #-----------------------------------------------------------------------
   test-registry-service:
-    needs: changes
-    if: needs.changes.outputs.registry_service == 'true'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the submodule registry-service
@@ -150,8 +113,6 @@ jobs:
   #--- Test api-gateway
   #-----------------------------------------------------------------------
   test-api-gateway:
-    needs: changes
-    if: needs.changes.outputs.api_gateway == 'true'
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the submodule api-gateway
@@ -175,11 +136,10 @@ jobs:
   #--- Test mflibrary-frontend
   #-----------------------------------------------------------------------
   test-mflibrary-frontend:
-    needs: changes
-    if: needs.changes.outputs.frontend == 'true'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Check out repository
+        uses: actions/checkout@v4
         with:
           submodules: true
 
@@ -192,6 +152,9 @@ jobs:
         run: npm ci
         working-directory: ./mflibrary-frontend
 
+      - name: Install Chrome
+        run: sudo apt-get update && sudo apt-get install -y google-chrome-stable
+
       - name: Run frontend tests
-        run: npm test -- --watch=false --browsers=ChromeHeadless
+        run: npx ng test --watch=false --browsers=ChromeHeadless
         working-directory: ./mflibrary-frontend
diff --git a/submodules/api-gateway b/submodules/api-gateway
index fe213db..dd6543f 160000
--- a/submodules/api-gateway
+++ b/submodules/api-gateway
@@ -1 +1 @@
-Subproject commit fe213dbe355255874e38a420b5aca93f31483283
+Subproject commit dd6543f8e8b706037102679acff7b67a37c4ad08
diff --git a/submodules/book-service b/submodules/book-service
index 22ba893..4bb1336 160000
--- a/submodules/book-service
+++ b/submodules/book-service
@@ -1 +1 @@
-Subproject commit 22ba893ee8f349bd0759b126a564757735372b4f
+Subproject commit 4bb1336a77b5d6b47ba7c9e513b778fa658407b2
diff --git a/submodules/registry-service b/submodules/registry-service
index fa16f06..6b07445 160000
--- a/submodules/registry-service
+++ b/submodules/registry-service
@@ -1 +1 @@
-Subproject commit fa16f060c8487b512944e6786f6414a49ffa1fed
+Subproject commit 6b07445a36d37204af65ca9bb5d1ddaee3eebad0
diff --git a/submodules/review-service b/submodules/review-service
index 072eab4..72c82d9 160000
--- a/submodules/review-service
+++ b/submodules/review-service
@@ -1 +1 @@
-Subproject commit 072eab45ab39366757486eb3edb88b6a5a6f1ab9
+Subproject commit 72c82d94d65819fdf73500c50350101b3b0724eb
diff --git a/submodules/user-service b/submodules/user-service
index 85d691e..507007b 160000
--- a/submodules/user-service
+++ b/submodules/user-service
@@ -1 +1 @@
-Subproject commit 85d691e01a07064e40ca7b641b779a5c173f472a
+Subproject commit 507007bb15bf23d2acf9ff5df4bfbee4475af218

From 618dbfd03e2ec8b2554c38535fbdc8c7e96dfcd5 Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Wed, 20 Aug 2025 22:56:47 +0200
Subject: [PATCH 2/7] Refactor workflows and update submodule references

- Streamlined pr_to_master.yml and push_pr_to_dev.yml for clarity and efficiency
- Reduced redundant steps and improved job structure in CI workflows
- Updated submodule references for all services to latest commits
---
 .github/workflows/pr_to_master.yml   | 8 ++++----
 .github/workflows/push_pr_to_dev.yml | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index bb1e638..d170c11 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -268,14 +268,14 @@ jobs:
 
       - name: Install dependencies
         run: npm ci
-        working-directory: ./mflibrary-frontend
+        working-directory: ./submodules/mflibrary-frontend
 
       - name: Install Chrome
         run: sudo apt-get update && sudo apt-get install -y google-chrome-stable
 
       - name: Run frontend tests
         run: npx ng test --watch=false --browsers=ChromeHeadless
-        working-directory: ./mflibrary-frontend
+        working-directory: ./submodules/mflibrary-frontend
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -290,9 +290,9 @@ jobs:
       - name: Build and Push mflibrary-frontend Docker Image
         uses: docker/build-push-action@v5
         with:
-          context: ./mflibrary-frontend
+          context: ./submodules/mflibrary-frontend
           push: true
-          file: ./mflibrary-frontend/Dockerfile
+          file: ./submodules/mflibrary-frontend/Dockerfile
           tags: |
             ghcr.io/${{ github.repository }}/mflibrary-frontend:latest
             ghcr.io/${{ github.repository }}/mflibrary-frontend:${{ github.sha }}
diff --git a/.github/workflows/push_pr_to_dev.yml b/.github/workflows/push_pr_to_dev.yml
index 2851ff9..4f0131b 100644
--- a/.github/workflows/push_pr_to_dev.yml
+++ b/.github/workflows/push_pr_to_dev.yml
@@ -150,11 +150,11 @@ jobs:
 
       - name: Install dependencies
         run: npm ci
-        working-directory: ./mflibrary-frontend
+        working-directory: ./submodules/mflibrary-frontend
 
       - name: Install Chrome
         run: sudo apt-get update && sudo apt-get install -y google-chrome-stable
 
       - name: Run frontend tests
         run: npx ng test --watch=false --browsers=ChromeHeadless
-        working-directory: ./mflibrary-frontend
+        working-directory: ./submodules/mflibrary-frontend

From cdd53c5249d624d3d31fdacc532e94af6b5cc4c8 Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Thu, 21 Aug 2025 01:37:23 +0200
Subject: [PATCH 3/7] Refactor CI workflows for simplicity and maintainability

- Significantly reduced and streamlined steps in pr_to_master.yml and push_pr_to_dev.yml
- Removed redundant or unnecessary actions to improve workflow efficiency
- Enhanced clarity and maintainability of CI pipeline configuration
---
 .github/workflows/pr_to_master.yml   | 211 +++------------------------
 .github/workflows/push_pr_to_dev.yml | 108 ++------------
 2 files changed, 31 insertions(+), 288 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index d170c11..be7176d 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -28,14 +28,17 @@ jobs:
           fi
 
   #-----------------------------------------------------------------------
-  #--- Build and push user-service Docker image
+  #--- Build backend services
   #-----------------------------------------------------------------------
-  build-user-service:
+  build-backend-services:
     needs: validate-branch
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        service: [ api-gateway, registry-service, user-service, book-service, review-service ]
 
     steps:
-      - name: Checkout the submodule user-service
+      - name: Checkout repository
         uses: actions/checkout@v4
         with:
           submodules: true
@@ -47,187 +50,16 @@ jobs:
           distribution: 'temurin'
           cache: 'maven'
 
-      - name: Run the user-service tests
+      - name: Run tests
         run: |
-          chmod +x ./submodules/user-service/mvnw
-          ./submodules/user-service/mvnw -f ./submodules/user-service/pom.xml clean test
+          chmod +x ./submodules/${{ matrix.service }}/mvnw
+          ./submodules/${{ matrix.service }}/mvnw -f ./submodules/${{ matrix.service }}/pom.xml clean test
 
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push user-service Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: ./submodules/user-service
-          push: true
-          tags: |
-            ghcr.io/${{ github.repository }}/user-service:${{ github.sha }}
-            ghcr.io/${{ github.repository }}/user-service:latest
-          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
-          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/user-service:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/user-service:buildcache,mode=max
-
-  #-----------------------------------------------------------------------
-  #--- Build and push book-service Docker image
-  #-----------------------------------------------------------------------
-  build-book-service:
-    needs: validate-branch
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout the submodule book-service
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the book-service tests
-        run: |
-          chmod +x ./submodules/book-service/mvnw
-          ./submodules/book-service/mvnw -f ./submodules/book-service/pom.xml clean test
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push book-service Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: ./submodules/book-service
-          push: true
-          tags: |
-            ghcr.io/${{ github.repository }}/book-service:${{ github.sha }}
-            ghcr.io/${{ github.repository }}/book-service:latest
-          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
-          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/book-service:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/book-service:buildcache,mode=max
-
-  #-----------------------------------------------------------------------
-  #--- Build and push review-service Docker image
-  #-----------------------------------------------------------------------
-  build-review-service:
-    needs: validate-branch
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the submodule review-service
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the review-service tests
-        run: |
-          chmod +x ./submodules/review-service/mvnw
-          ./submodules/review-service/mvnw -f ./submodules/review-service/pom.xml clean test
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push review-service Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: ./submodules/review-service
-          push: true
-          tags: |
-            ghcr.io/${{ github.repository }}/review-service:${{ github.sha }}
-            ghcr.io/${{ github.repository }}/review-service:latest
-          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
-          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/review-service:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/review-service:buildcache,mode=max
-
-  #-----------------------------------------------------------------------
-  #--- Build and push registry-service Docker image
-  #-----------------------------------------------------------------------
-  build-registry-service:
-    needs: validate-branch
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the submodule registry-service
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the registry-service tests
-        run: |
-          chmod +x ./submodules/registry-service/mvnw
-          ./submodules/registry-service/mvnw -f ./submodules/registry-service/pom.xml clean test
-
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Build and push registry-service Docker image
-        uses: docker/build-push-action@v6
-        with:
-          context: ./submodules/registry-service
-          push: true
-          tags: |
-            ghcr.io/${{ github.repository }}/registry-service:${{ github.sha }}
-            ghcr.io/${{ github.repository }}/registry-service:latest
-          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
-          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/registry-service:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/registry-service:buildcache,mode=max
-
-  #-----------------------------------------------------------------------
-  #--- Build and push api-gateway Docker image
-  #-----------------------------------------------------------------------
-  build-api-gateway:
-    needs: validate-branch
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the submodule api-gateway
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
         with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the api-gateway tests
-        run: |
-          chmod +x ./submodules/api-gateway/mvnw
-          ./submodules/api-gateway/mvnw -f ./submodules/api-gateway/pom.xml clean test
+          install: true
+          driver: docker-container
 
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
@@ -236,18 +68,16 @@ jobs:
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push api-gateway Docker image
+      - name: Build and push Docker image
         uses: docker/build-push-action@v6
         with:
-          context: ./submodules/api-gateway
+          context: ./submodules/${{ matrix.service }}
           push: true
           tags: |
-            ghcr.io/${{ github.repository }}/api-gateway:${{ github.sha }}
-            ghcr.io/${{ github.repository }}/api-gateway:latest
-          # Use Docker build cache stored in GitHub Container Registry to speed up builds.
-          # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/api-gateway:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/api-gateway:buildcache,mode=max
+            ghcr.io/${{ github.repository }}/${{ matrix.service }}:${{ github.sha }}
+            ghcr.io/${{ github.repository }}/${{ matrix.service }}:latest
+          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/${{ matrix.service }}:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/${{ matrix.service }}:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push mflibrary-frontend Docker image
@@ -279,6 +109,9 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+        with:
+          install: true
+          driver: docker-container
 
       - name: Log in to GitHub Container Registry
         uses: docker/login-action@v3
diff --git a/.github/workflows/push_pr_to_dev.yml b/.github/workflows/push_pr_to_dev.yml
index 4f0131b..10e4bc0 100644
--- a/.github/workflows/push_pr_to_dev.yml
+++ b/.github/workflows/push_pr_to_dev.yml
@@ -16,13 +16,16 @@ on:
 
 jobs:
   #-----------------------------------------------------------------------
-  #--- Test user-service
+  #--- Test backend services
   #-----------------------------------------------------------------------
-  test-user-service:
+  test-backend-services:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        service: [ api-gateway, registry-service, user-service, book-service, review-service ]
 
     steps:
-      - name: Checkout the submodule user-service
+      - name: Checkout repository
         uses: actions/checkout@v4
         with:
           submodules: true
@@ -34,103 +37,10 @@ jobs:
           distribution: 'temurin'
           cache: 'maven'
 
-      - name: Run the user-service tests
+      - name: Run tests
         run: |
-          chmod +x ./submodules/user-service/mvnw
-          ./submodules/user-service/mvnw -f ./submodules/user-service/pom.xml clean test
-
-  #-----------------------------------------------------------------------
-  #--- Test book-service
-  #-----------------------------------------------------------------------
-  test-book-service:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Checkout the submodule book-service
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the book-service tests
-        run: |
-          chmod +x ./submodules/book-service/mvnw
-          ./submodules/book-service/mvnw -f ./submodules/book-service/pom.xml clean test
-
-  #-----------------------------------------------------------------------
-  #--- Test review-service
-  #-----------------------------------------------------------------------
-  test-review-service:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the submodule review-service
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the review-service tests
-        run: |
-          chmod +x ./submodules/review-service/mvnw
-          ./submodules/review-service/mvnw -f ./submodules/review-service/pom.xml clean test
-
-  #-----------------------------------------------------------------------
-  #--- Test registry-service
-  #-----------------------------------------------------------------------
-  test-registry-service:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the submodule registry-service
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the registry-service tests
-        run: |
-          chmod +x ./submodules/registry-service/mvnw
-          ./submodules/registry-service/mvnw -f ./submodules/registry-service/pom.xml clean test
-
-  #-----------------------------------------------------------------------
-  #--- Test api-gateway
-  #-----------------------------------------------------------------------
-  test-api-gateway:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout the submodule api-gateway
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - name: Set up JDK 21
-        uses: actions/setup-java@v4
-        with:
-          java-version: '21'
-          distribution: 'temurin'
-          cache: 'maven'
-
-      - name: Run the api-gateway tests
-        run: |
-          chmod +x ./submodules/api-gateway/mvnw
-          ./submodules/api-gateway/mvnw -f ./submodules/api-gateway/pom.xml clean test
+          chmod +x ./submodules/${{ matrix.service }}/mvnw
+          ./submodules/${{ matrix.service }}/mvnw -f ./submodules/${{ matrix.service }}/pom.xml clean test
 
   #-----------------------------------------------------------------------
   #--- Test mflibrary-frontend

From 855a7e36f09a445730c46799073bac3e456c7f9e Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Thu, 21 Aug 2025 02:06:53 +0200
Subject: [PATCH 4/7] Refactor CI workflows for simplicity and maintainability

- Significantly reduced and streamlined steps in pr_to_master.yml and push_pr_to_dev.yml
- Removed redundant or unnecessary actions to improve workflow efficiency
- Enhanced clarity and maintainability of CI pipeline configuration
---
 .github/workflows/pr_to_master.yml | 31 ++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index be7176d..90d19f3 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -36,6 +36,9 @@ jobs:
     strategy:
       matrix:
         service: [ api-gateway, registry-service, user-service, book-service, review-service ]
+    env:
+      IMAGE_TAG: ${{ github.sha }}
+      REPO_NAME: ${{ github.repository }}
 
     steps:
       - name: Checkout repository
@@ -55,6 +58,10 @@ jobs:
           chmod +x ./submodules/${{ matrix.service }}/mvnw
           ./submodules/${{ matrix.service }}/mvnw -f ./submodules/${{ matrix.service }}/pom.xml clean test
 
+      # GitHub Container Registry enforces all repository paths to be lowercase.
+      - name: Set lowercase repo name
+        run: echo "REPO_LC=${REPO_NAME,,}" >> $GITHUB_ENV
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
@@ -74,10 +81,10 @@ jobs:
           context: ./submodules/${{ matrix.service }}
           push: true
           tags: |
-            ghcr.io/${{ github.repository }}/${{ matrix.service }}:${{ github.sha }}
-            ghcr.io/${{ github.repository }}/${{ matrix.service }}:latest
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/${{ matrix.service }}:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/${{ matrix.service }}:buildcache,mode=max
+            ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:${{ env.IMAGE_TAG }}
+            ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:latest
+          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push mflibrary-frontend Docker image
@@ -85,6 +92,10 @@ jobs:
   build-mflibrary-frontend:
     needs: validate-branch
     runs-on: ubuntu-latest
+    env:
+      IMAGE_TAG: ${{ github.sha }}
+      REPO_NAME: ${{ github.repository }}
+
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
@@ -107,6 +118,10 @@ jobs:
         run: npx ng test --watch=false --browsers=ChromeHeadless
         working-directory: ./submodules/mflibrary-frontend
 
+      # GitHub Container Registry enforces all repository paths to be lowercase.
+      - name: Set lowercase repo name
+        run: echo "REPO_LC=${REPO_NAME,,}" >> $GITHUB_ENV
+
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
         with:
@@ -127,9 +142,9 @@ jobs:
           push: true
           file: ./submodules/mflibrary-frontend/Dockerfile
           tags: |
-            ghcr.io/${{ github.repository }}/mflibrary-frontend:latest
-            ghcr.io/${{ github.repository }}/mflibrary-frontend:${{ github.sha }}
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:latest
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:${{ env.IMAGE_TAG }}
           # Use Docker build cache stored in GitHub Container Registry to speed up builds.
           # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ github.repository }}/mflibrary-frontend:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ github.repository }}/mflibrary-frontend:buildcache,mode=max
+          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:buildcache,mode=max

From 237551525084cd1fefab4e3fa54583a2ba3e9c9a Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Thu, 21 Aug 2025 02:20:46 +0200
Subject: [PATCH 5/7] Refactor CI workflows for simplicity and maintainability

- Significantly reduced and streamlined steps in pr_to_master.yml and push_pr_to_dev.yml
- Removed redundant or unnecessary actions to improve workflow efficiency
- Enhanced clarity and maintainability of CI pipeline configuration
---
 .github/workflows/pr_to_master.yml | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index 90d19f3..03f7d79 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -38,7 +38,7 @@ jobs:
         service: [ api-gateway, registry-service, user-service, book-service, review-service ]
     env:
       IMAGE_TAG: ${{ github.sha }}
-      REPO_NAME: ${{ github.repository }}
+      REPO_OWNER: ${{ github.repository_owner  }}
 
     steps:
       - name: Checkout repository
@@ -60,7 +60,7 @@ jobs:
 
       # GitHub Container Registry enforces all repository paths to be lowercase.
       - name: Set lowercase repo name
-        run: echo "REPO_LC=${REPO_NAME,,}" >> $GITHUB_ENV
+        run: echo "REPO_LC=${REPO_OWNER,,}" >> $GITHUB_ENV
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -94,7 +94,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       IMAGE_TAG: ${{ github.sha }}
-      REPO_NAME: ${{ github.repository }}
+      REPO_OWNER: ${{ github.repository_owner  }}
 
     steps:
       - name: Check out repository
@@ -120,7 +120,7 @@ jobs:
 
       # GitHub Container Registry enforces all repository paths to be lowercase.
       - name: Set lowercase repo name
-        run: echo "REPO_LC=${REPO_NAME,,}" >> $GITHUB_ENV
+        run: echo "REPO_LC=${REPO_OWNER,,}" >> $GITHUB_ENV
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3

From ccd3be1306ce55c2bbbdab3526b1fb0fff37a00a Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Thu, 21 Aug 2025 02:29:49 +0200
Subject: [PATCH 6/7] Refactor CI workflows for simplicity and maintainability

- Significantly reduced and streamlined steps in pr_to_master.yml and push_pr_to_dev.yml
- Removed redundant or unnecessary actions to improve workflow efficiency
- Enhanced clarity and maintainability of CI pipeline configuration
---
 .github/workflows/pr_to_master.yml | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index 03f7d79..6e01717 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -81,10 +81,10 @@ jobs:
           context: ./submodules/${{ matrix.service }}
           push: true
           tags: |
-            ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:${{ env.IMAGE_TAG }}
-            ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:latest
-          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:buildcache,mode=max
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:${{ env.IMAGE_TAG }}
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:latest
+          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push mflibrary-frontend Docker image
@@ -142,9 +142,9 @@ jobs:
           push: true
           file: ./submodules/mflibrary-frontend/Dockerfile
           tags: |
-            ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:latest
-            ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:${{ env.IMAGE_TAG }}
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:latest
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:${{ env.IMAGE_TAG }}
           # Use Docker build cache stored in GitHub Container Registry to speed up builds.
           # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:buildcache,mode=max
+          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:buildcache,mode=max

From 16bd64aaf39d25add26fd34e7a01746c68b080f7 Mon Sep 17 00:00:00 2001
From: eugene-seb <etoundisebastien@gmail.com>
Date: Thu, 21 Aug 2025 02:40:31 +0200
Subject: [PATCH 7/7] Refactor CI workflows for simplicity and maintainability

- Significantly reduced and streamlined steps in pr_to_master.yml and push_pr_to_dev.yml
- Removed redundant or unnecessary actions to improve workflow efficiency
- Enhanced clarity and maintainability of CI pipeline configuration
---
 .github/workflows/pr_to_master.yml | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/.github/workflows/pr_to_master.yml b/.github/workflows/pr_to_master.yml
index 6e01717..fbe72af 100644
--- a/.github/workflows/pr_to_master.yml
+++ b/.github/workflows/pr_to_master.yml
@@ -11,6 +11,10 @@ on:
     branches:
       - master  # I allow only PR from dev -> master
 
+permissions:
+  contents: read
+  packages: write
+
 jobs:
   #-----------------------------------------------------------------------
   #--- Validate the PR's branch
@@ -38,7 +42,7 @@ jobs:
         service: [ api-gateway, registry-service, user-service, book-service, review-service ]
     env:
       IMAGE_TAG: ${{ github.sha }}
-      REPO_OWNER: ${{ github.repository_owner  }}
+      REPO_NAME: ${{ github.repository }}
 
     steps:
       - name: Checkout repository
@@ -60,7 +64,7 @@ jobs:
 
       # GitHub Container Registry enforces all repository paths to be lowercase.
       - name: Set lowercase repo name
-        run: echo "REPO_LC=${REPO_OWNER,,}" >> $GITHUB_ENV
+        run: echo "REPO_LC=${REPO_NAME,,}" >> $GITHUB_ENV
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -81,10 +85,10 @@ jobs:
           context: ./submodules/${{ matrix.service }}
           push: true
           tags: |
-            ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:${{ env.IMAGE_TAG }}
-            ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:latest
-          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-${{ matrix.service }}:buildcache,mode=max
+            ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:${{ env.IMAGE_TAG }}
+            ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:latest
+          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/${{ matrix.service }}:buildcache,mode=max
 
   #-----------------------------------------------------------------------
   #--- Build and push mflibrary-frontend Docker image
@@ -94,7 +98,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       IMAGE_TAG: ${{ github.sha }}
-      REPO_OWNER: ${{ github.repository_owner  }}
+      REPO_NAME: ${{ github.repository }}
 
     steps:
       - name: Check out repository
@@ -120,7 +124,7 @@ jobs:
 
       # GitHub Container Registry enforces all repository paths to be lowercase.
       - name: Set lowercase repo name
-        run: echo "REPO_LC=${REPO_OWNER,,}" >> $GITHUB_ENV
+        run: echo "REPO_LC=${REPO_NAME,,}" >> $GITHUB_ENV
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
@@ -142,9 +146,9 @@ jobs:
           push: true
           file: ./submodules/mflibrary-frontend/Dockerfile
           tags: |
-            ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:latest
-            ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:${{ env.IMAGE_TAG }}
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:latest
+            ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:${{ env.IMAGE_TAG }}
           # Use Docker build cache stored in GitHub Container Registry to speed up builds.
           # 'cache-from' pulls existing cache layers; 'cache-to' pushes new layers for future
-          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:buildcache
-          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-mflibrary-frontend:buildcache,mode=max
+          cache-from: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:buildcache
+          cache-to: type=registry,ref=ghcr.io/${{ env.REPO_LC }}/mflibrary-frontend:buildcache,mode=max