36 lines
872 B
Docker
36 lines
872 B
Docker
# Pin specific version for stability
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# Use alpine for reduced image size
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FROM node:19.4-alpine
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# Set NODE_ENV
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ENV NODE_ENV production
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# Specify working directory other than /
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WORKDIR /usr/src/app
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# Copy only files required to install
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# dependencies (better layer caching)
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COPY package*.json ./
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# Install only production dependencies
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# Use cache mount to speed up install of existing dependencies
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RUN --mount=type=cache,target=/usr/src/app/.npm \
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npm set cache /usr/src/app/.npm && \
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npm ci --only=production
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# Use non-root user
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# Use --chown on COPY commands to set file permissions
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USER node
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# Copy the healthcheck script
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COPY --chown=node:node ./healthcheck/ .
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# Copy remaining source code AFTER installing dependencies.
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# Again, copy only the necessary files
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COPY --chown=node:node ./src/ .
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# Indicate expected port
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EXPOSE 3000
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CMD [ "node", "index.js" ]
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