feat- adicionado secret key no Dockerfile

Dockerfile

@@ -1,22 +1,17 @@
 # syntax = docker/dockerfile:1
 
-# This Dockerfile is designed for production, not development. Use with Kamal or build'n'run by hand:
-# docker build -t my-app .
-# docker run -d -p 80:80 -p 443:443 --name my-app -e RAILS_MASTER_KEY=<value from config/master.key> my-app
-
-# Make sure RUBY_VERSION matches the Ruby version in .ruby-version
+# Define Ruby version
 ARG RUBY_VERSION=3.3.4
 FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
 
-# Rails app lives here
 WORKDIR /rails
 
 # Install base packages
 RUN apt-get update -qq && \
     apt-get install --no-install-recommends -y curl libjemalloc2 libvips postgresql-client && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
-# Set production environment
+# Set environment for production
 ENV RAILS_ENV="production" \
     BUNDLE_DEPLOYMENT="1" \
     BUNDLE_PATH="/usr/local/bundle" \
@@ -25,50 +20,45 @@ ENV RAILS_ENV="production" \
 # Throw-away build stage to reduce size of final image
 FROM base AS build
 
-# Install packages needed to build gems
+# Install build essentials
 RUN apt-get update -qq && \
     apt-get install --no-install-recommends -y build-essential git libpq-dev pkg-config && \
     rm -rf /var/lib/apt/lists /var/cache/apt/archives
 
-# Install application gems
+# Install 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 application code and precompile assets
 COPY . .
 
-# Precompile bootsnap code for faster boot times
 RUN bundle exec bootsnap precompile app/ lib/
 
-# Adjust binfiles to be executable on Linux
 RUN chmod +x bin/* && \
     sed -i "s/\r$//g" bin/* && \
     sed -i 's/ruby\.exe$/ruby/' bin/*
 
-# Precompiling assets for production without requiring secret RAILS_MASTER_KEY
-RUN SECRET_KEY_BASE_DUMMY=1 ./bin/rails assets:precompile
-
-
-
+# Temporarily set SECRET_KEY_BASE for assets precompilation
+RUN SECRET_KEY_BASE=a618e99253e4917e90a9ffab04df5565189e072eca3e32fa91ac0f2baffcb4e0541224f5bbc20f46417eed61a3e326488eacb190c3609682f34f3354f3f3dc1e ./bin/rails assets:precompile
 
 # Final stage for app image
 FROM base
 
-# Copy built artifacts: gems, application
+# Copy built artifacts
 COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
 COPY --from=build /rails /rails
 
-# Run and own only the runtime files as a non-root user for security
+# Setup non-root user and permissions
 RUN groupadd --system --gid 1000 rails && \
     useradd rails --uid 1000 --gid 1000 --create-home --shell /bin/bash && \
     chown -R rails:rails db log storage tmp
 USER 1000:1000
 
-# Entrypoint prepares the database.
+# Entrypoint for database setup
 ENTRYPOINT ["/rails/bin/docker-entrypoint"]
 
-# Start the server by default, this can be overwritten at runtime
+# Start the server
 EXPOSE 3000
 CMD ["./bin/rails", "server"]