Adds GitHub workflow for creating Docker images

.github/workflows/docker-image.yaml

@@ -0,0 +1,45 @@
+name: Build Docker Image
+
+on:
+  push:
+    branches:
+      - "master"
+    tags:
+      - "v*.*.*"
+
+env:
+  IMAGE_NAME: shahradelahi/wireadmin
+  # By default, image tag is the commit SHA
+  IMAGE_TAG: ${{ github.sha }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.PRIVATE_TOKEN }}
+
+      # if it was a release tag, use the tag as the image tag
+      - name: Set image tag
+        if: startsWith(github.ref, 'refs/tags/v')
+        run: |
+          echo "IMAGE_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
+          echo "IMAGE_TAG=${IMAGE_TAG//./-}" >> $GITHUB_ENV
+
+      - name: Push to GitHub Container Registry
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: ghcr.io/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}