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refactor(docker): improve performance of image building

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Move instructions around and split out downloading third party dependencies
This commit is contained in:
Peter Grainger
2021-01-20 10:11:04 +00:00
parent a2bc60a4fb
commit 72b760d3fa
1 changed files with 29 additions and 18 deletions
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+29 -18
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@@ -1,35 +1,46 @@
# Initial build stage. Will not be included in minimal production image
FROM node:12.20.1-alpine3.12@sha256:42998ae4420998ff3255fc2d6884e882bd32f06d45b057f4b042e33bf48a1240 as build
# Having multiple steps in builder doesn't increase the final image size
# So having verbose steps for readability and caching should be the target
WORKDIR /opt
COPY packages/frontend .
# Create the static frontend files in the dist folder
RUN npm ci && \
npm run build
# Minimal production image
FROM node:12.20.1-alpine3.12@sha256:42998ae4420998ff3255fc2d6884e882bd32f06d45b057f4b042e33bf48a1240
# Copy package defs first they are the least likely to change
# Keeping this order will least likely trigger full rebuild
COPY packages/frontend/package*.json frontend/
RUN npm --prefix frontend ci frontend
COPY packages/server/package*.json server/
ENV NODE_ENV production
RUN npm --prefix server ci server
# Copy remaining files across for frontend. Changes to these files
# will be more common than changes to the dependencies. This should
# speed up rebuilds.
COPY packages/frontend frontend
WORKDIR /opt/frontend
RUN npm run build
FROM node:12.20.1-alpine3.12@sha256:42998ae4420998ff3255fc2d6884e882bd32f06d45b057f4b042e33bf48a1240
RUN apk add --no-cache tini=0.19.0-r0
RUN mkdir frontend server
COPY --from=build --chown=node /opt/dist /home/node/frontend/dist
COPY --chown=node packages/server /home/node/server
# Use a non-root user for security best practices
# Use a non-root user for increased security.
USER node
ENV NODE_ENV production
# Copy dependencies and static files from build layer
COPY --from=build --chown=node /opt/frontend/dist /home/node/frontend/dist
COPY --from=build --chown=node /opt/server /home/node/server
# Run the application from the non root users home directory
WORKDIR /home/node/server
# Install dependencies
RUN npm ci
# Copy remaining files across for the server. Changes to these
# files will be more common than changes to the dependencies.
# This should speed up rebuilds.
COPY --chown=node packages/server /home/node/server
# Init for containers https://github.com/krallin/tini
ENTRYPOINT [ "/sbin/tini", "--" ]