feat: add Dockerfile

Dockerfile

@@ -0,0 +1,42 @@
+ARG RUN
+
+FROM node:18.18-alpine as builderenv
+
+WORKDIR /app
+
+# some packages require a build step
+RUN apk update
+RUN apk add --no-cache py3-setuptools python3-dev build-base g++ make py3-pip libpng-dev jpeg-dev pango-dev cairo-dev giflib-dev librsvg-dev
+
+# install dependencies
+COPY package.json /app/package.json
+COPY package-lock.json /app/package-lock.json
+RUN npm install
+
+# build the app
+COPY . /app
+RUN npm run build
+RUN npm run test
+
+# remove devDependencies, keep only used dependencies
+RUN npm install --only=production --ignore-scripts
+
+########################## END OF BUILD STAGE ##########################
+
+FROM node:18.18-alpine
+
+RUN apk update
+RUN apk add --no-cache tini libpng jpeg cairo pango giflib librsvg-dev
+
+# NODE_ENV is used to configure some runtime options, like JSON logger
+ENV NODE_ENV production
+
+WORKDIR /app
+COPY --from=builderenv /app /app
+# Please _DO NOT_ use a custom ENTRYPOINT because it may prevent signals
+# (i.e. SIGTERM) to reach the service
+# Read more here: https://aws.amazon.com/blogs/containers/graceful-shutdowns-with-ecs/
+#            and: https://www.ctl.io/developers/blog/post/gracefully-stopping-docker-containers/
+ENTRYPOINT ["/sbin/tini", "--"]
+# Run the program under Tini
+CMD [ "/usr/local/bin/node", "--trace-warnings", "--abort-on-uncaught-exception", "--unhandled-rejections=strict", "dist/src/index.js" ]