Update shields/Makefile, shields/Dockerfile files

shields/Dockerfile

@@ -0,0 +1,23 @@
+FROM node:14.16.0-alpine3.13
+
+RUN mkdir -p /usr/src/app/private
+WORKDIR /usr/src/app
+
+COPY package.json package-lock.json /usr/src/app/
+# Without the badge-maker package.json and CLI script in place, `npm ci` will fail.
+COPY badge-maker /usr/src/app/badge-maker/
+
+# We need dev deps to build the front end. We don't need Cypress, though.
+RUN NODE_ENV=development CYPRESS_INSTALL_BINARY=0 npm ci
+
+COPY . /usr/src/app
+RUN npm run build && \
+    npm prune --production && \
+    npm cache clean --force
+
+# Run the server using production configs.
+ENV NODE_ENV production
+
+CMD node server
+
+EXPOSE 80

shields/Makefile

@@ -16,4 +16,5 @@ build:
 	  --cache-from=type=registry,ref=${NAMESPACE}/buildx:${IMAGE} \
 	  --cache-to=type=registry,ref=${NAMESPACE}/buildx:${IMAGE} \
 	  --tag ${NAMESPACE}/${IMAGE}:$(VERSION) \
-	  --tag ${CI_REGISTRY_IMAGE}/${IMAGE}:$(VERSION) shields-$(VERSION)
+	  --tag ${CI_REGISTRY_IMAGE}/${IMAGE}:$(VERSION) \
+	  --file Dockerfile shields-$(VERSION)