Changed docker build from alpine to ubuntu

.github/workflows/build-docker-image.yml

@@ -16,7 +16,7 @@
 name: Build Docker image
 
 env:
-  PLATFORMS: linux/amd64 #,linux/arm64
+  PLATFORMS: linux/amd64,linux/arm64
 
 # when to run workflow
 on:
@@ -38,10 +38,10 @@ jobs:
       max-parallel: 1
       matrix:
         include:
-          - dockerfile: docker/alpine/Dockerfile
+          - dockerfile: docker/ubuntu/Dockerfile
             name: agent
-          - dockerfile: demo/Dockerfile
-            name: demo
+#          - dockerfile: demo/Dockerfile
+#            name: demo
 
     # steps represent a sequence of tasks that will be executed as part of the job
     steps:
@@ -52,12 +52,12 @@ jobs:
 
       # the QEMU emulator lets us build for arm processors also
       # see https://github.com/docker/setup-qemu-action
-#     - name: Set up QEMU emulator
-#      uses: docker/setup-qemu-action@v3
+      - name: Set up QEMU emulator
+        uses: docker/setup-qemu-action@v3
 
       # see https://github.com/docker/setup-buildx-action
-#      - name: Set up Docker Buildx
-#        uses: docker/setup-buildx-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to DockerHub
         uses: docker/login-action@v3
@@ -76,7 +76,7 @@ jobs:
         with:
           context: .
           file: ${{ matrix.dockerfile }}
- #         platforms: ${{ env.PLATFORMS }}
+          platforms: ${{ env.PLATFORMS }}
 
           # docker hub user/repo:tag
           tags: |