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who to use mrsk to deploy rails production

Outrageous Orangutan answered on April 29, 2023 Popularity 1/10 Helpfulness 1/10

answer who to use mrsk to deploy rails production

who to use mrsk to deploy rails production

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# syntax = docker/dockerfile:1

# Make sure RUBY_VERSION matches the Ruby version in .ruby-version and Gemfile
ARG RUBY_VERSION=3.2.0
FROM ruby:$RUBY_VERSION-slim 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"

# Install Litestream
ARG LITESTREAM_VERSION="0.3.7"
ADD https://github.com/benbjohnson/litestream/releases/download/v${LITESTREAM_VERSION}/litestream-v${LITESTREAM_VERSION}-linux-amd64-static.tar.gz /tmp/litestream.tar.gz
RUN tar -C /usr/local/bin -xzf /tmp/litestream.tar.gz && rm /tmp/litestream.tar.gz

ENV DB_PATH="/rails/storage/production.sqlite3"

# 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 default-libmysqlclient-dev git libpq-dev libvips pkg-config

# 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/

# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile

# Final stage for app image
FROM base

# Install packages needed for deployment
RUN apt-get update -qq && \
    apt-get install --no-install-recommends -y default-mysql-client libsqlite3-0 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 /rails/litestream.yml /etc/litestream.yml

# Run and own only the runtime files as a non-root user for security
RUN useradd rails --home /rails --shell /bin/bash && \
    chown -R rails:rails db log 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 \
    # if the db file doesn't exist, we get it from the REPLICA_URL
    [ ! -f $DB_PATH ] && litestream restore -v -if-replica-exists -o $DB_PATH "${REPLICA_URL}" \
    # then we run the migrations
    && bundle exec rake db:migrate \
    # then we launch litestream replicate and execute rails server
    && litestream replicate -exec "./bin/rails server"

Popularity 1/10 Helpfulness 1/10 Language ruby

Source: inthepacket.com

Tags: production ruby

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Contributed on Apr 29 2023

Outrageous Orangutan

0 Answers Avg Quality 2/10

who to use mrsk to deploy rails production

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