Dockerfile.replicator

# Builds a Docker image for the replicator. Allows us to include custom changes
# from other packages the replicator depends on (e.g. hub-nodejs) to test those
# in isolation.

###############################################################################
############## Stage 1: Create pruned version of monorepo #####################
###############################################################################

FROM node:20.8-alpine AS prune

RUN apk add --no-cache libc6-compat

USER node
RUN mkdir /home/node/app
WORKDIR /home/node/app

# Run turbo prune to create a pruned version of monorepo
COPY --chown=node:node ./package.json ./package.json
RUN yarn global add turbo@$(node -e "console.log(require('./package.json').devDependencies.turbo)")
COPY --chown=node:node . .
RUN /home/node/.yarn/bin/turbo prune --scope=@farcaster/replicator --docker

###############################################################################
############## Stage 2: Build the code using a full node image ################
###############################################################################

FROM node:20.8-alpine AS build

# Needed for compilation step
RUN apk add --no-cache libc6-compat python3 make g++ linux-headers curl

USER node
RUN mkdir /home/node/app
WORKDIR /home/node/app

# Install Rust
RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain 1.70.0
ENV PATH="/home/node/.cargo/bin:${PATH}"

# Rust flags to allow building with musl, which is needed for alpine
ENV RUSTFLAGS="-C target-feature=-crt-static"

# Copy dependency information and install all dependencies
COPY --chown=node:node --from=prune /home/node/app/out/json/ .
COPY --chown=node:node --from=prune /home/node/app/out/yarn.lock ./yarn.lock

RUN yarn install --frozen-lockfile --network-timeout 1800000

# Copy source code (and all other relevant files)
COPY --chown=node:node --from=prune /home/node/app/out/full/ .
# turbo prune doesn't include global tsconfig.json (https://github.com/vercel/turbo/issues/2177)
COPY --chown=node:node tsconfig.json tsconfig.json

# Build code
RUN yarn build

# Purge dev dependencies and only install production dependencies
RUN rm -rf node_modules && yarn install --production --ignore-scripts --prefer-offline --force --frozen-lockfile

###############################################################################
########## Stage 3: Copy over the built code to a leaner alpine image #########
###############################################################################

FROM node:20.8-alpine as app

# Requirement for runtime metrics integrations
RUN apk add libc6-compat

# Set non-root user
USER node

# Many npm packages use this to trigger production optimized behaviors
ENV NODE_ENV production

RUN mkdir /home/node/app
WORKDIR /home/node/app

# Copy results from previous stage.
# The base image is same as the build stage, so it is safe to copy node_modules over to this stage.
COPY --chown=node:node --from=prune /home/node/app/out/json/ .
COPY --chown=node:node --from=build /home/node/app/apps/replicator/build ./apps/replicator/build
COPY --chown=node:node --from=build /home/node/app/node_modules ./node_modules
COPY --chown=node:node --from=build /home/node/app/packages/core/dist ./packages/core/dist/
COPY --chown=node:node --from=build /home/node/app/packages/hub-nodejs/dist ./packages/hub-nodejs/dist/

# BuildKit doesn't support --squash flag, so emulate by copying into fewer layers
FROM scratch
COPY --from=app / /

# Repeat of above since it is lost between build stages
USER node
WORKDIR /home/node/app/apps/replicator

CMD ["node", "build/app.js"]