Hello world app

runtimes/hello-world:latest/Dockerfile

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+FROM node:14-alpine AS build
+
+WORKDIR /app
+COPY . /app
+
+RUN set -ex \
+  # Build JS-Application
+  && npm install --production \
+  # Delete unnecessary files
+  && rm package* \
+  # Correct User's file access
+  && chown -R node:node /app
+
+FROM node:14-alpine AS final
+WORKDIR /app
+COPY --from=build /app /app
+ENV HTTP_PORT=8000
+EXPOSE $HTTP_PORT $HTTPS_PORT
+USER 1000
+EXPOSE 8000
+CMD ["node", "./index.js"]