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Trim Docker image size

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* Only copy production node dependencies into image
* Use multi-stage build to make use of node dependency cache
* Use non-root user
This commit is contained in:
Hugo Müller-Downing 2020-09-22 22:30:37 +10:00
parent 8e2759d7c4
commit 34d82166e4
1 changed files with 30 additions and 8 deletions
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38
Dockerfile
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@ -1,17 +1,39 @@
FROM node:12.18-alpine # Build image
FROM node:12.18-alpine AS build
ARG DATABASE_TYPE ARG DATABASE_TYPE
ENV DATABASE_URL "postgresql://umami:umami@db:5432/umami" \ ENV DATABASE_URL "postgresql://umami:umami@db:5432/umami" \
DATABASE_TYPE=$DATABASE_TYPE DATABASE_TYPE=$DATABASE_TYPE
WORKDIR /build
WORKDIR /app COPY package.json yarn.lock /build/
EXPOSE 3000
COPY package.json yarn.lock /app/ # Install only the production dependencies
RUN yarn install --frozen-lockfile RUN yarn install --production
COPY . /app # Cache these modules for production
RUN cp -R node_modules/ prod_node_modules/
# Install development dependencies
RUN yarn install
COPY . /build
RUN yarn build RUN yarn build
# Production image
FROM node:12.18-alpine AS production
WORKDIR /app
# Copy cached dependencies
COPY --from=build /build/prod_node_modules ./node_modules
# Copy generated Prisma client
COPY --from=build /build/node_modules/\.prisma/ ./node_modules/\.prisma/
COPY --from=build /build/yarn.lock /build/package.json ./
COPY --from=build /build/.next ./.next
COPY --from=build /build/public ./public
USER node
EXPOSE 3000
CMD ["yarn", "start"] CMD ["yarn", "start"]