Add docker file linting

.github/workflows/on-pullrequest-dockerfile.yml

@@ -0,0 +1,39 @@
+name: On Pull Request - Dockerfile
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/on-pullrequest-dockerfile.yml"
+      - "Docker/*"
+  pull_request:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/on-pullrequest-dockerfile.yml"
+      - "Docker/*"
+  workflow_dispatch:
+
+jobs:
+  docker-testing:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+
+      - uses: hadolint/hadolint-action@54c9adbab1582c2ef04b2016b760714a4bfde3cf # v3.1.0
+        name: Run Linter on Dockerfiles
+        with:
+          dockerfile: "Docker/api-mssql.Dockerfile Docker/api-pgsql.Dockerfile Docker/dbadmin.Dockerfile Docker/dev.Dockerfile"
+
+      # - uses: hadolint/hadolint-action@54c9adbab1582c2ef04b2016b760714a4bfde3cf # v3.1.0
+      #   name: Run Linter on NPM Dockerfile
+      #   with:
+      #     dockerfile: docker/Dockerfile
+
+      # - name: Build the NPM Docker image
+      #   # To confirm no errors occur. The "local" one will be built by the e2e
+      #   # testing process.
+      #   run: docker build --build-arg ML_VERSION=pre .
+      #   working-directory: docker

Docker/dev.Dockerfile

@@ -44,4 +44,6 @@ RUN apk --no-cache add curl=~8 dos2unix=~7 bash=~5 gettext=~0 icu=~72 gcompat &&
 EXPOSE 443
 WORKDIR /app
 
+# dummy change for testing lint
+
 ENTRYPOINT ["/app/run.sh"]