feat: added Docker image autobuild

Author: bodom0015

.github/workflows/docker.yml

@@ -0,0 +1,71 @@
+name: Docker
+
+# This will run when:
+# - when new code is pushed to main/develop to push the tags
+#   latest and develop
+# - when a pull request is created and updated  to make sure the
+#   Dockerfile is still valid.
+# To be able to push to dockerhub, this execpts the following
+# secrets to be set in the project:
+# - DOCKERHUB_USERNAME : username that can push to the org
+# - DOCKERHUB_PASSWORD : password asscoaited with the username
+on:
+  push:
+    branches:
+      - main
+      - develop
+
+  pull_request:
+  
+  # Trigger the workflow on release activity
+  release:
+    # Only use the types keyword to narrow down the activity types that will trigger your workflow.
+    types:
+      - published
+      - edited
+      - created
+
+# Certain actions will only run when this is the main repo.
+env:
+  MAIN_REPO: nds-org/custom-errors
+  DOCKERHUB_ORG: ndslabs
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - uses: actions/checkout@v3
+
+      - name: Docker meta
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: |
+            ndslabs/custom-errors
+          tags: |
+            # set latest tag for default branch
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=ref,event=tag
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+
+      - name: Build and push
+        uses: docker/build-push-action@v3
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}