diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
new file mode 100644
index 0000000..4bda080
--- /dev/null
+++ b/.github/workflows/docker-image.yml
@@ -0,0 +1,56 @@
+name: Docker Image CI
+
+on:
+  push:
+    branches: ["main", "dev*"]
+    tags: ["*.*.*"]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        image-tag: [alpine3.16, bullseye-slim, focal, jammy]
+    name: ${{ matrix.image-tag }}
+    runs-on: ubuntu-latest
+    env:
+      ASPNET_VERSION: "6.0.8"
+      SKIP_DOCKER: "false"
+    steps:
+      - name: Set version from TAG
+        if: ${{ startsWith(github.ref, 'refs/tags/') }}
+        run: |
+          echo "ASPNET_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+          echo "Update ASPNET_VERSION to ${GITHUB_REF#refs/*/}"
+      - name: Skip docker build
+        if: ${{ matrix.image-tag == 'focal' && startsWith(env.ASPNET_VERSION, '7.0') }}
+        run: echo "SKIP_DOCKER=true" >> $GITHUB_ENV
+      - uses: actions/checkout@v2
+        if: ${{ env.SKIP_DOCKER != 'true' }}
+      - name: Docker meta
+        id: meta
+        if: ${{ env.SKIP_DOCKER != 'true' }}
+        uses: docker/metadata-action@v3
+        with:
+          images: netlah/aspnet-webssh
+          tags: |
+            type=ref,event=branch,priority=600,prefix=,suffix=
+            type=sha,enable=true,priority=500,prefix=sha-,suffix=,format=short
+      - name: Login to Docker Hub
+        if: ${{ success() && env.SKIP_DOCKER != 'true' && github.event_name != 'pull_request' }}
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+      - name: Build and push on tag
+        if: ${{ success() && env.SKIP_DOCKER != 'true' && github.event_name != 'pull_request' && startsWith(github.ref, 'refs/tags/') }}
+        env:
+          IMAGE_TAG: ${{ env.ASPNET_VERSION }}-${{ matrix.image-tag }}
+        shell: pwsh
+        run: ./docker-build.ps1 -imageTag ${{ env.IMAGE_TAG }} -dockerRepository netlah/aspnet-webssh,${{ secrets.DOCKER_HUB_REPOS }} -Labels "${{ steps.meta.outputs.labels }}" -Verbose
+      - name: Build and push on branch
+        if: ${{ success() && env.SKIP_DOCKER != 'true' && github.event_name != 'pull_request' && !startsWith(github.ref, 'refs/tags/') }}
+        env:
+          IMAGE_TAG: ${{ env.ASPNET_VERSION }}-${{ matrix.image-tag }}
+        shell: pwsh
+        run: ./docker-build.ps1 -imageTag ${{ env.IMAGE_TAG }} -dockerRepository ${{ secrets.DOCKER_HUB_REPOS }} -Labels "${{ steps.meta.outputs.labels }}" -Verbose
diff --git a/README.md b/README.md
index 3324525..43b5f3d 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,10 @@ A customized ASP.NET Core container supports Azure AppService Web SSH. Docker im
 
 https://github.com/NetLah/aspnet-webssh
 
+## Build Status
+
+[![Docker Image CI](https://github.com/NetLah/aspnet-webssh/actions/workflows/docker-image.yml/badge.svg)](https://github.com/NetLah/aspnet-webssh/actions/workflows/docker-image.yml)
+
 ## Reference
 
 - https://learn.microsoft.com/en-us/azure/app-service/configure-custom-container?pivots=container-linux#enable-ssh
diff --git a/docker-build.ps1 b/docker-build.ps1
index 779b3e2..7149b83 100644
--- a/docker-build.ps1
+++ b/docker-build.ps1
@@ -39,7 +39,9 @@ function getMajorSdk($imageTag) {
 }
 
 $imageTagMajor = getMajorSdk $imageTag
-$imageArch = $mappingArch[$imageTagMajor]
+if ($imageTagMajor) {
+    $imageArch = $mappingArch[$imageTagMajor]
+}
 
 if (!$imageTag -or !$imageTagMajor -or !$imageArch) {
     Write-Error "SDK Image Tag '$imageTag' is not supported" -ErrorAction Stop