DockerFile 추가

DockerFile

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+# https://hub.docker.com/_/node
+FROM node:16-slim
+
+# Create and change to the app directory.
+WORKDIR /usr/src/app
+
+# Copy application dependency manifests to the container image.
+# Copying this first prevents re-running npm install on every code change.
+COPY package*.json ./
+
+# Install production dependencies and build
+RUN yarn install
+RUN yarn build
+
+# Copy local code to the container image.
+COPY . .
+
+# Run the web service on container startup.
+CMD [ "yarn", "start" ]