add github workflow

.github/workflows/docker-image.yml

@@ -0,0 +1,46 @@
+name: container-builder
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest # self-hosted
+    ##############################################################
+    ## Configurations
+    ##############################################################
+    env:
+      builder_ns: ghcr.io/saha-robotics/Ogm2Pgbm
+      tag: latest
+    ##############################################################
+    steps:
+      # ###
+      # Login to github packages, our container registry
+      # ###
+      # - name:  Login to GitHub Container Registry
+      #   uses: docker/[email protected]
+      #   with:
+      #     registry:  ghcr.io
+      #     username: ${{ github.actor }}
+      #     password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+
+      # ###
+      # build image
+      # ###
+      -
+        name: Build rmf
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          file: docker/Dockerfile
+          build-args: |
+            BUILDER_NS=${{ env.builder_ns }}
+            TAG=${{ env.tag }}
+          push: true
+          tags: ${{ env.builder_ns }}/rmf:${{ env.tag }}
+
+