Replace workflow with docker build file

Author: Brittlejf

.github/workflows/docker-build.yaml

@@ -0,0 +1,36 @@
+name: docker-build
+on:
+  push:
+
+env:
+  IMAGE_NAME: minio-docs
+
+jobs:
+  push:
+    runs-on: self-hosted
+    permissions:
+      packages: write
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v5
+      - name: Build image
+        run: docker build . --tag $IMAGE_NAME
+      - name: Log in to registry
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository_owner }}/$IMAGE_NAME
+
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+
+          [ "$VERSION" == "main" ] && VERSION=latest
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
+          docker push $IMAGE_ID:$VERSION