Incorporates the base image building back into the main repo with multi stage building

.github/workflows/reusable-workflow-builder.yml

@@ -0,0 +1,68 @@
+name: Reusable Image Builder
+
+on:
+  workflow_call:
+    inputs:
+      dockerfile:
+        required: true
+        type: string
+      build-json:
+        required: true
+        type: string
+      build-args:
+        required: false
+        default: ""
+        type: string
+
+concurrency:
+  group: ${{ github.workflow }}-${{ fromJSON(inputs.build-json).name }}-${{ fromJSON(inputs.build-json).version }}
+  cancel-in-progress: false
+
+jobs:
+  build-image:
+    name: Build ${{ fromJSON(inputs.build-json).name }} @ ${{ fromJSON(inputs.build-json).version }}
+    runs-on: ubuntu-latest
+    steps:
+      -
+        name: Login to Github Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      -
+        name: Determine if build needed
+        id: build-skip-check
+        run: |
+          if ! docker manifest inspect ${{ fromJSON(inputs.build-json).image_tag }} &> /dev/null ; then
+            echo "Building, no image exists with this version"
+            echo ::set-output name=image-exists::false
+          else
+            echo "Not building, image exists with this version"
+            echo ::set-output name=image-exists::true
+          fi
+      -
+        name: Checkout
+        uses: actions/checkout@v3
+        if: ${{ steps.build-skip-check.outputs.image-exists == 'false' }}
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        if: ${{ steps.build-skip-check.outputs.image-exists == 'false' }}
+      -
+        name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        if: ${{ steps.build-skip-check.outputs.image-exists == 'false' }}
+      -
+        name: Build ${{ fromJSON(inputs.build-json).name }}
+        uses: docker/build-push-action@v2
+        if: ${{ steps.build-skip-check.outputs.image-exists == 'false' }}
+        with:
+          context: .
+          file: ${{ inputs.dockerfile }}
+          tags: ${{ fromJSON(inputs.build-json).image_tag }}
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          build-args: ${{ inputs.build-args }}
+          push: true
+          cache-from: type=gha
+          cache-to: type=gha,mode=max