setup dev containers again

.github/workflows/dev-container.yml

@@ -0,0 +1,53 @@
+name: Dev Container
+
+on:
+    push:
+        paths:
+            - hack/dockerfiles/dev-container.Dockerfile
+            - .github/workflows/dev-container.yml
+    schedule:
+        - cron: '0 12 * * 2' # 12 noon every tuesday
+jobs:
+    docker_build:
+        name: Docker Build & Publish
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@master
+
+            - uses: actions/cache@v2
+              with:
+                  path: /tmp/.buildx-cache
+                  key: ${{ runner.os }}-buildx-${{ github.sha }}
+                  restore-keys: |
+                      ${{ runner.os }}-buildx-
+
+            - name: Docker meta
+              id: docker_meta
+              uses: crazy-max/ghaction-docker-meta@v1
+              with:
+                  images: ghcr.io/roleypoly/dev-container
+                  tag-sha: true
+
+            - name: Set up Docker Buildx
+              id: buildx
+              uses: docker/setup-buildx-action@v1
+              with:
+                  install: true
+
+            - name: Login to GitHub Packages Docker Registry
+              uses: docker/login-action@v1
+              with:
+                  registry: ghcr.io
+                  username: roleypoly
+                  password: ${{ secrets.GHCR_PAT }}
+
+            - name: Build and push
+              uses: docker/build-push-action@v2
+              with:
+                  context: .
+                  file: ./hack/dockerfiles/dev-container.Dockerfile
+                  push: true
+                  cache-from: type=local,src=/tmp/.buildx-cache
+                  cache-to: type=local,dest=/tmp/.buildx-cache
+                  tags: ${{ steps.docker_meta.outputs.tags }}
+                  labels: ${{ steps.docker_meta.outputs.labels }}