add Dockerfile

.dockerignore

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+node_modules

Dockerfile

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+FROM node:lts-buster-slim
+
+ENV PORT=6000
+
+# Create app directory
+WORKDIR /usr/src/app
+
+COPY package.json package.json
+COPY yarn.lock yarn.lock
+
+RUN yarn
+
+COPY . .
+
+RUN yarn build
+
+EXPOSE ${PORT}
+
+CMD [ "yarn", "start"]