👷 docker: github registry with actions

.github/workflows/docker.yml

@@ -0,0 +1,23 @@
+name: Docker image
+
+on:
+  push:
+    branches:
+      - "master"
+    paths-ignore:
+      - ".gitignore"
+      - "*.md"
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+
+      - name: Log into registry
+        run: echo "${{ secrets.CR_PAT }}" | docker login ghcr.io -u ${{ github.repository_owner }} --password-stdin
+
+      - name: Build and push image
+        run: |
+          docker build -t ghcr.io/${{ github.repository_owner }}/next-terminal -f Dockerfile .
+          docker push ghcr.io/${{ github.repository_owner }}/next-terminal