Class: ActivePostgres::Generators::InstallGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Defined in:
lib/active_postgres/generators/active_postgres/install_generator.rb

Instance Method Summary collapse

Instance Method Details

#create_config_file ⇒ Object 



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# File 'lib/active_postgres/generators/active_postgres/install_generator.rb', line 11

def create_config_file
  template 'postgres.yml.erb', 'config/postgres.yml'
end

#show_credentials_template ⇒ Object 



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# File 'lib/active_postgres/generators/active_postgres/install_generator.rb', line 97

def show_credentials_template
  puts "\nšŸ“ Add to Rails credentials (rails credentials:edit):"
  puts
  puts 'postgres:'
  puts '  # Rails application database credentials'
  puts "  username: #{boring_app_name}"
  puts "  password: \"#{generate_secure_password}\""
  puts "  database: #{boring_app_name}_production"
  puts '  primary_host: YOUR_PRIMARY_IP  # Update after provisioning (e.g., 10.8.0.100)'
  puts '  replica_host: YOUR_REPLICA_IP  # Update after provisioning (e.g., 10.8.0.101)'
  puts '  port: 5432'
  puts '  statement_timeout: 15s'
  puts "  application_name: #{boring_app_name}"
  puts
  puts '  # PostgreSQL server setup credentials (for active_postgres rake tasks)'
  puts "  superuser_password: \"#{generate_secure_password}\""
  puts "  replication_password: \"#{generate_secure_password}\""
  puts "  repmgr_password: \"#{generate_secure_password}\""
  puts "  monitoring_password: \"#{generate_secure_password}\""
  puts "  grafana_admin_password: \"#{generate_secure_password}\""
  puts
  puts 'šŸ” Secure passwords have been auto-generated above.'
  puts 'šŸ“Œ Update primary_host and replica_host with your actual IPs after provisioning.'
end

#show_next_steps ⇒ Object 



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# File 'lib/active_postgres/generators/active_postgres/install_generator.rb', line 122

def show_next_steps
  puts "\nāœ… ActivePostgres installed!"
  puts "\nšŸ“ Next steps:"
  puts '  1. Either:'
  puts '     a) Edit config/postgres.yml with your database servers, OR'
  puts '     b) Use Terraform to auto-generate config/postgres.yml'
  puts '  2. Add secrets to Rails credentials (see above)'
  puts '  3. Deploy PostgreSQL HA: rails active_postgres:setup'
  puts '  4. Check health: rails active_postgres:health'
  puts "\nšŸ“š See config/postgres.example.yml in gem for full examples"
end

#update_database_yml ⇒ Object 



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# File 'lib/active_postgres/generators/active_postgres/install_generator.rb', line 15

def update_database_yml
  if File.exist?('config/database.yml')
    contents = File.read('config/database.yml')

    # Extract production section
    production_section = contents[/^production:.*?(?=^[a-z_]+:|\z)/m] || ''

    # Check if we have the NEW Rails credentials-based config in production section
    if production_section.include?('Generated by active_postgres') && production_section.include?('Rails.application.credentials.dig(:postgres')
      say_status :skipped, 'config/database.yml already has ActivePostgres production config'
      return
    end

    # Check if old ENV-based config exists
    if production_section.include?('Generated by active_postgres') && production_section.include?('ENV.fetch')
      say_status :info, 'Found old ENV-based ActivePostgres config'
      return unless yes?('Replace with Rails credentials-based config? (y/n)', :yellow)
    end

    # Remove existing production section if present
    if contents =~ /^production:/m
      if contents.include?('Generated by active_postgres')
        say_status :info, 'Replacing ActivePostgres production config'
      else
        say_status :info, 'Found existing production config'
        return unless yes?('Replace with ActivePostgres config? (y/n)', :yellow)
      end

      lines = contents.lines
      new_lines = []
      skip_section = false
      skip_boring_comment = false

      lines.each do |line|
        # Skip the "Generated by active_postgres" comment before production section
        if line =~ /^# Generated by active_postgres/
          skip_boring_comment = true
          next
        end

        if line =~ /^production:/
          skip_section = true
          skip_boring_comment = false
          next
        elsif skip_section && (line =~ /^[a-z_]+:/ || line =~ /^# [A-Z]/)
          skip_section = false
        end

        new_lines << line unless skip_section || skip_boring_comment
      end

      # Remove trailing whitespace lines
      new_lines.pop while new_lines.last&.strip&.empty?
      contents = new_lines.join
    end

    # Append ActivePostgres production config directly
    contents += "\n" unless contents.end_with?("\n")
    contents += generate_production_config

    File.write('config/database.yml', contents)
    say_status :updated, 'config/database.yml (added ActivePostgres production config)'
  else
    create_file 'config/database.yml', <<~YAML
      default: &default
        adapter: postgresql
        encoding: unicode
        pool: <%= ENV.fetch("DB_POOL") { ENV.fetch("RAILS_MAX_THREADS") { 5 } } %>

      development:
        <<: *default
        database: #{boring_app_name}_development

      test:
        <<: *default
        database: #{boring_app_name}_test

      #{generate_production_config}
    YAML
  end
end