35 lines
876 B
Docker
35 lines
876 B
Docker
# Pin specific version for stability
|
|
# Use slim for reduced image size
|
|
FROM node:19.6-bullseye-slim
|
|
|
|
# Set NODE_ENV
|
|
ENV NODE_ENV production
|
|
|
|
# Specify working directory other than /
|
|
WORKDIR /usr/src/app
|
|
|
|
# Copy only files required to install
|
|
# dependencies (better layer caching)
|
|
COPY package*.json ./
|
|
|
|
# Install only production dependencies
|
|
# Use cache mount to speed up install of existing dependencies
|
|
RUN --mount=type=cache,target=/usr/src/app/.npm \
|
|
npm set cache /usr/src/app/.npm && \
|
|
npm ci --only=production
|
|
|
|
# Use non-root user
|
|
# Use --chown on COPY commands to set file permissions
|
|
USER node
|
|
|
|
# Copy the healthcheck script
|
|
COPY --chown=node:node ./healthcheck/ .
|
|
|
|
# Copy remaining source code AFTER installing dependencies.
|
|
# Again, copy only the necessary files
|
|
COPY --chown=node:node ./src/ .
|
|
|
|
# Indicate expected port
|
|
EXPOSE 3000
|
|
|
|
CMD [ "node", "index.js" ] |