Use a docker build action that supports proper tagging.

.github/workflows/docker_build.yml

@@ -1,7 +1,14 @@
 name: Docker Image Build
 
 on:
+  schedule:
+    - cron: '0 10 * * *' # everyday at 10am
   push:
+    branches:
+      - '**'
+    tags:
+      - 'v*.*.*'
+  pull_request:
     branches:
       - 'master'
 
@@ -9,6 +16,20 @@ jobs:
   docker:
     runs-on: ubuntu-latest
     steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Docker meta
+        id: docker_meta
+        uses: crazy-max/ghaction-docker-meta@v1
+        with:
+          # list of Docker images to use as base name for tags
+          images: |
+            jbtronics/part-db1
+            ghcr.io/Part-DB/part-db1
+          # add git short SHA as Docker tag
+          tag-sha: true
       -
         name: Set up QEMU
         uses: docker/setup-qemu-action@v1
@@ -17,17 +38,24 @@ jobs:
         uses: docker/setup-buildx-action@v1
       -
         name: Login to DockerHub
+        if: github.event_name != 'pull_request'
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Login to GHCR
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
       -
         name: Build and push
-        id: docker_build
         uses: docker/build-push-action@v2
         with:
-          push: true
+          context: .
-          tags: jbtronics/part-db1:latest
+          push: ${{ github.event_name != 'pull_request' }}
-      -
+          tags: ${{ steps.docker_meta.outputs.tags }}
-        name: Image digest
+          labels: ${{ steps.docker_meta.outputs.labels }}
-        run: echo ${{ steps.docker_build.outputs.digest }}