Add github action to build docker image

Author: Te4g

.github/workflows/docker.yaml

@@ -0,0 +1,41 @@
+name: Build docker image
+on:
+    push:
+        tags:
+            - '*'
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+            -   name: Checkout
+                uses: actions/checkout@v4
+
+            -   name: Docker meta
+                id: meta
+                uses: docker/metadata-action@v5
+                with:
+                    images: ghcr.io/${{ github.repository_owner }}/mount-ssh
+                    tags: |
+                        type=semver,pattern={{version}}
+
+            -   name: Set up QEMU
+                uses: docker/setup-qemu-action@v3
+
+            -   name: Set up Docker Buildx
+                uses: docker/setup-buildx-action@v3
+
+            -   name: Login to GitHub Container Registry
+                uses: docker/login-action@v3
+                with:
+                    registry: ghcr.io
+                    username: ${{ github.repository_owner }}
+                    password: ${{ secrets.GITHUB_TOKEN }}
+
+            -   name: Build and push
+                uses: docker/build-push-action@v5
+                with:
+                    context: .
+                    platforms: linux/amd64,linux/arm64
+                    push: true
+                    tags: ${{ steps.meta.outputs.tags }}