fp/dockerfiles/worker.dockerfile

## d.worker.dockerfile
##
## @futureporn/worker is the system component which runs background tasks.
## Tasks such as thumbnail generation, video encoding, file transfers, etc.
##
## @todo future improvement might be merging the dockerfiles for the various monorepo packages.
## this is not an easy task, so I'm not doing it right now.
## "make it work, make it right, make it fast" (in that order)
## Right now we are making things work with separate dockerfiles for each package.
## One thing to determine is build speed. If we're developing in Tilt and have to wait 20 minutes for the build to complete
## every time we change a file in any dependent package, then merging dockerfiles is not desirable.
## One of the slow parts of the docker build is copying all package directories into the build context.
## If we have a lot of packages, it takes a long time.
## I have yet to determine performance benchmarks, so it's unclear if merging dockerfiles is desirable.
##
## @todo another performance improvement would almost certainly be to move strapi, next, and similar packages from `packages/*` into `services/*`
## this way, when we're building the various @futureporn library-type packages, we don't have to filter and COPY the dependency packages one-by-one.
## instead, we add the entire `packages/*` directory and then move on to the next step.

FROM node:20 AS base
ENV PNPM_HOME="/pnpm"
ENV PATH="$PNPM_HOME:$PATH"
WORKDIR /app

FROM base AS build
WORKDIR /app
RUN mkdir -p /app/packages/worker && mkdir -p /prod/worker

## Copy manfiests, lockfiles, and configs into docker context
COPY package.json pnpm-lock.yaml .npmrc .
RUN corepack enable && corepack prepare --activate
# COPY ./packages/image/pnpm-lock.yaml ./packages/image/package.json ./packages/image/
# COPY ./packages/storage/pnpm-lock.yaml ./packages/storage/package.json ./packages/storage/
# COPY ./packages/types/pnpm-lock.yaml ./packages/types/package.json ./packages/types/
# COPY ./packages/utils/pnpm-lock.yaml ./packages/utils/package.json ./packages/utils/
COPY ./packages/worker/pnpm-lock.yaml ./packages/worker/package.json ./packages/worker/

## Install npm packages
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm fetch
## we install node-gyp explicitly in order for sharp to install properly
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install -g node-gyp --prefer-offline
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm install --recursive --frozen-lockfile --prefer-offline

## Copy package code into docker context
# COPY ./packages/image/ ./packages/image/
# COPY ./packages/storage/ ./packages/storage/
# COPY ./packages/types/ ./packages/types/
# COPY ./packages/utils/ ./packages/utils/
COPY ./packages/worker/ ./packages/worker/

## Transpile TS into JS
## we have to build @futureporn/image first because other packages depend on it's built js files
## next we build everything else
# RUN pnpm --filter=@futureporn/image build
# RUN pnpm --filter=!@futureporn/image -r build
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm -r build

## Copy all production code into one place
## `pnpm deploy` copies all dependencies into an isolated node_modules directory inside the target dir
## @see https://pnpm.io/cli/deploy
RUN --mount=type=cache,id=pnpm,target=/pnpm/store pnpm deploy --filter=@futureporn/worker --prod /prod/worker


FROM base AS worker
COPY --from=build /prod/worker .
RUN ls -la .
ENTRYPOINT ["pnpm", "start"]