fix: update Docker Hub login credentials to use secrets for username and token

Author: vuminhle1997

.github/workflows/docker-hub.yml

@@ -1,60 +1,60 @@
 name: Build and Push to Docker Hub
 
 on:
-    push:
-        branches:
-            - main
-        tags:
-            - "v*"
-    workflow_dispatch:
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+  workflow_dispatch:
 
 env:
-    DOCKER_USERNAME: ${{ github.actor }}
+  DOCKER_USERNAME: ${{ secrets.DOCKERHUB_USERNAME }}
 
 jobs:
-    build-and-push:
-        runs-on: ubuntu-latest
-        strategy:
-            matrix:
-                include:
-                    - dockerfile: ./backend/Dockerfile
-                      image: nachweise-backend
-                      context: ./backend
-                    - dockerfile: ./client-nachweise/Dockerfile
-                      image: nachweise-frontend
-                      context: ./client-nachweise
-
-        steps:
-            - name: Checkout repository
-              uses: actions/checkout@v4
-
-            - name: Set up Docker Buildx
-              uses: docker/setup-buildx-action@v3
-
-            - name: Log in to Docker Hub
-              uses: docker/login-action@v3
-              with:
-                  username: ${{ github.actor }}
-                  password: ${{ secrets.GITHUB_TOKEN }}
-
-            - name: Extract metadata
-              id: meta
-              uses: docker/metadata-action@v5
-              with:
-                  images: ${{ env.DOCKER_USERNAME }}/${{ matrix.image }}
-                  tags: |
-                      type=ref,event=branch
-                      type=semver,pattern={{version}}
-                      type=semver,pattern={{major}}.{{minor}}
-                      type=sha,prefix={{branch}}-
-                      type=raw,value=latest,enable={{is_default_branch}}
-
-            - name: Build and push
-              uses: docker/build-push-action@v5
-              with:
-                  context: ${{ matrix.context }}
-                  push: true
-                  tags: ${{ steps.meta.outputs.tags }}
-                  labels: ${{ steps.meta.outputs.labels }}
-                  cache-from: type=registry,ref=${{ env.DOCKER_USERNAME }}/${{ matrix.image }}:buildcache
-                  cache-to: type=registry,ref=${{ env.DOCKER_USERNAME }}/${{ matrix.image }}:buildcache,mode=max
+  build-and-push:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - dockerfile: ./backend/Dockerfile
+            image: nachweise-backend
+            context: ./backend
+          - dockerfile: ./client-nachweise/Dockerfile
+            image: nachweise-frontend
+            context: ./client-nachweise
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.DOCKER_USERNAME }}/${{ matrix.image }}
+          tags: |
+            type=ref,event=branch
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=sha,prefix={{branch}}-
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: ${{ matrix.context }}
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=registry,ref=${{ env.DOCKER_USERNAME }}/${{ matrix.image }}:buildcache
+          cache-to: type=registry,ref=${{ env.DOCKER_USERNAME }}/${{ matrix.image }}:buildcache,mode=max