How to run the foreman Procfile with the Vite SSR setting in the Kamal Dockerfile?

[abratashov]

Currently, I'm trying to deploy the Rails app with Kamal that consists of Vite/InertiaJS/React/SSR
and for running SSR, it needs to be run by a separate process in Procfile.

To run SSR as described in this example, https://github.com/ElMassimo/inertia-rails-ssr-template
I've added an extra vite ssr runner at the end of Dockerfile:

# Dockerfile
...
# CMD ["./bin/prod"]
# or
CMD ["./bin/rails", "server"]
CMD ["./bin/vite", "ssr"]

bin/prod:

#!/usr/bin/env sh

if ! gem list foreman -i --silent; then
  echo "Installing foreman..."
  gem install foreman
fi

exec foreman start -f Procfile "$@"

and Procfile:

web: bin/rails s -p 3000
vite: bin/vite ssr

I've added the NodeJS installation to the Dockerfile but, unfortunately, node is still not accessible for vite however it works good for yarn. On the last step of Kamal's deployment, it throws an error:

ERROR /usr/local/bundle/ruby/3.1.0/gems/vite_ruby-3.5.0/lib/vite_ruby/cli/ssr.rb:25:in `exec': No such file or directory - node (Errno::ENOENT)
  from /usr/local/bundle/ruby/3.1.0/gems/vite_ruby-3.5.0/lib/vite_ruby/cli/ssr.rb:25:in `call'
  from /usr/local/bundle/ruby/3.1.0/gems/dry-cli-1.0.0/lib/dry/cli.rb:116:in `perform_registry'
  from /usr/local/bundle/ruby/3.1.0/gems/dry-cli-1.0.0/lib/dry/cli.rb:65:in `call'
  from /usr/local/bundle/ruby/3.1.0/gems/vite_ruby-3.5.0/exe/vite:12:in `<top (required)>'
  from /rails/bin/vite:29:in `load'
  from /rails/bin/vite:29:in `<main>'

So, how to run bin/vite ssr in a correct way?
Thanks!

Full Dockerfile

Dockerfile

# syntax = docker/dockerfile:1

FROM registry.docker.com/library/ruby:3.1.3 as base

# Rails app lives here
WORKDIR /rails

# Set production environment
ENV RAILS_ENV="production" \
    BUNDLE_DEPLOYMENT="1" \
    BUNDLE_PATH="/usr/local/bundle" \
    BUNDLE_WITHOUT="development"

# Throw-away build stage to reduce size of final image
FROM base as build

# Install packages needed to build gems
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y build-essential git libpq-dev libvips imagemagick pkg-config curl node-gyp python3-pip python-is-python3

# Install JavaScript dependencies
ARG NODE_VERSION=20.12.1
ARG YARN_VERSION=1.22.22
ENV PATH=/usr/local/node/bin:$PATH
RUN curl -sL https://github.com/nodenv/node-build/archive/master.tar.gz | tar xz -C /tmp/ && \
    /tmp/node-build-master/bin/node-build "${NODE_VERSION}" /usr/local/node && \
    npm install -g yarn@$YARN_VERSION && \
    rm -rf /tmp/node-build-master

# Install node modules
COPY package.json yarn.lock ./
RUN yarn install --frozen-lockfile

# Install application gems
COPY Gemfile Gemfile.lock ./
RUN bundle install && \
    rm -rf ~/.bundle/ "${BUNDLE_PATH}"/ruby/*/cache "${BUNDLE_PATH}"/ruby/*/bundler/gems/*/.git && \
    bundle exec bootsnap precompile --gemfile

# Copy application code
COPY . .

# Precompile bootsnap code for faster boot times
RUN bundle exec bootsnap precompile app/ lib/

# RUN echo "CREATE DATABASE ${POSTGRES_DB}" | psql -U root

# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
RUN SECRET_KEY_BASE_DUMMY=1 NODE_OPTIONS=--openssl-legacy-provider ./bin/rails assets:precompile

# Build SSR for Inertia React
RUN SECRET_KEY_BASE_DUMMY=1 bin/vite build --ssr

# Final stage for app image
FROM base

# Install packages needed for deployment
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y libvips postgresql-client && \
    rm -rf /var/lib/apt/lists /var/cache/apt/archives

# Copy built artifacts: gems, application
COPY --from=build /usr/local/bundle /usr/local/bundle
COPY --from=build /rails /rails
COPY --from=build /usr/local/bin/node /usr/local/bin/node

# Run and own only the runtime files as a non-root user for security
RUN useradd rails --create-home --shell /bin/bash && \
    chown -R rails:rails db log public storage tmp
USER rails:rails

# Entrypoint prepares the database.
ENTRYPOINT ["/rails/bin/docker-entrypoint"]

# Start the server by default, this can be overwritten at runtime
EXPOSE 3000
# CMD ["./bin/prod"]
CMD ["./bin/rails", "server"]
CMD ["./bin/vite", "ssr"]

Rails 6.1
Node.js 20.12.1
Kamal 1.5

[buhrmi]

Just use a base image that includes node, for example https://hub.docker.com/r/timbru31/ruby-node/tags

[abratashov]

I've found the solution, need to add it to Dockerfile:

# ...
COPY --from=build /usr/local/node/bin /usr/local/node/bin
ENV PATH=/usr/local/node/bin:$PATH

Full application example here https://github.com/abratashov/rails-inertia-react-app