Capistrano config

Capfile

require "capistrano/setup"
require "capistrano/deploy"
require "capistrano/rvm"
require "capistrano/bundler"
require "capistrano/rails/assets"
require "capistrano/rails/migrations"
require "capistrano/puma"
require "capistrano/scm/git"
require "capistrano/sidekiq"

install_plugin Capistrano::SCM::Git
install_plugin Capistrano::Puma

# Load custom tasks from `lib/capistrano/tasks` if you have any defined
Dir.glob("lib/capistrano/tasks/*.rake").each { |r| import r }

config_deploy.rb

# config/deploy.rb
require_relative "deploy/aws_utils"

lock "3.9.1"

set :application, "indahash-nttd"
set :repo_url, "git@github.com:framgia/indahash-nttd.git"

set :assets_roles, [:app]
set :puma_roles, [:app]
set :sidekiq_roles, [:worker]

set :deploy_ref, ENV["DEPLOY_REF"]
set :deploy_ref_type, ENV["DEPLOY_REF_TYPE"]
set :bundle_binstubs, nil

if fetch(:deploy_ref)
  set :branch, fetch(:deploy_ref)
else
  raise "Please set $DEPLOY_REF"
end

platform = ENV["PLATFORM"].empty? ? "aws" : ENV["PLATFORM"]

set :platform, platform

set :rvm_ruby_version, "2.6.3"

set :deploy_to, "/usr/local/rails_apps/#{fetch :application}"

set :deployer, ENV["DEPLOYER"] || "deploy"

set :instances, ec2_targets unless ENV["LOCAL_DEPLOY"]

set :deploy_via,      :remote_cache
set :puma_bind,       "unix://#{shared_path}/tmp/sockets/puma.sock"
set :puma_state,      "#{shared_path}/tmp/pids/puma.state"
set :puma_pid,        "#{shared_path}/tmp/pids/puma.pid"
set :puma_preload_app, true
set :puma_worker_timeout, nil
set :puma_init_active_record, true

set :default_env, File.read("/home/deploy/.env").split("\n").inject({}){|h,var|
  k_v = var.gsub("export ","").split("=")
  h.merge k_v.first.downcase => k_v.last.gsub("\"", "")
}.symbolize_keys


default_linked_files = [
  "config/secrets.yml",
  "config/database.yml"
]

append :linked_files, *default_linked_files

set :linked_dirs, %w(log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system public/uploads)

namespace :deploy do
  desc "create database"
  task :create_database do
    on roles(:db) do |host|
      within "#{release_path}" do
        with rails_env: ENV["RAILS_ENV"] do
          execute :rake, "db:create"
        end
      end
    end
  end
  before :migrate, :create_database

  desc "link dotenv"
  task :link_dotenv do
    on roles(:app, :worker) do
      upload! "/home/deploy/.env", "/home/deploy/.env" if ENV["UPDATE_ENV"]
      execute "ln -s /home/deploy/.env #{release_path}/.env"
    end
  end
  after :migrate, :link_dotenv

  desc "Restart application"
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      within release_path do
        invoke! "puma:restart"
      end
    end

    on roles(:worker), in: :sequence, wait: 5 do
      within release_path do
        invoke! "sidekiq:restart"
      end
    end
  end

  desc "update ec2 tags"
  task :update_ec2_tags do
    if fetch(:platform) == "aws"
      branch = fetch(:branch)
      ref_type = fetch(:deploy_ref_type)
      last_commit = fetch(:current_revision)
      update_ec2_tags ref_type, branch, last_commit
    end
  end
  after :publishing, :update_ec2_tags
end

namespace :maintenance do
  desc "Maintenance start"
  task :start do
    on roles(:app) do
      within release_path do
        execute :rake, "maintenance:start"
      end
    end
  end

  desc "Maintenance stop"
  task :stop do
    on roles(:app) do
      within release_path do
        execute :rake, "maintenance:end"
      end
    end
  end
end

database.yml

default: &default
  adapter: mysql2
  encoding: utf8mb4
  charset: utf8mb4
  collation: utf8mb4_bin
  pool: <%= ENV.fetch("DATABASE_POOL") { 25 } %>
  host: <%= ENV["DATABASE_HOSTNAME"] %>
  username: <%= ENV["DATABASE_USERNAME"] %>
  password: <%= ENV["DATABASE_PASSWORD"] %>
  port: 3306
  socket: /var/run/mysqld/mysqld.sock

development:
  <<: *default
  database: test-project_development

staging:
  <<: *default
  database: test-project_staging

test:
  <<: *default
  database: test-project_test

production:
  <<: *default
  database: <%= ENV["DATABASE_NAME"] %>

env_staging.rb

# config/environments/staging.rb
# frozen_string_literal: true

Rails.application.configure do
  # Settings specified here will take precedence over those in config/application.rb.

  # Code is not reloaded between requests.
  config.cache_classes = true

  # Eager load code on boot. This eager loads most of Rails and
  # your application in memory, allowing both threaded web servers
  # and those relying on copy on write to perform better.
  # Rake tasks automatically ignore this option for performance.
  config.eager_load = true

  # Full error reports are disabled and caching is turned on.
  config.consider_all_requests_local       = false
  config.action_controller.perform_caching = true

  # Ensures that a master key has been made available in either ENV["RAILS_MASTER_KEY"]
  # or in config/master.key. This key is used to decrypt credentials (and other encrypted files).
  # config.require_master_key = true

  # Disable serving static files from the `/public` folder by default since
  # Apache or NGINX already handles this.
  config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?

  # Compress JavaScripts and CSS.
  config.assets.js_compressor = Uglifier.new(harmony: true)
  # config.assets.css_compressor = :sass

  # Do not fallback to assets pipeline if a precompiled asset is missed.
  config.assets.compile = false

  # `config.assets.precompile` and `config.assets.version` have moved to config/initializers/assets.rb

  # Enable serving of images, stylesheets, and JavaScripts from an asset server.
  # config.action_controller.asset_host = 'http://assets.example.com'

  # Specifies the header that your server uses for sending files.
  # config.action_dispatch.x_sendfile_header = 'X-Sendfile' # for Apache
  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for NGINX

  # Store uploaded files on the local file system (see config/storage.yml for options)
  config.active_storage.service = :local

  # Mount Action Cable outside main process or domain
  # config.action_cable.mount_path = nil
  # config.action_cable.url = 'wss://example.com/cable'
  # config.action_cable.allowed_request_origins = [ 'http://example.com', /http:\/\/example.*/ ]

  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
  # config.force_ssl = true

  # Use the lowest log level to ensure availability of diagnostic information
  # when problems arise.
  config.log_level = :debug

  # Prepend all log lines with the following tags.
  config.log_tags = [ :request_id, :remote_ip, lambda { |req| Time.current } ]

  # Use a different cache store in production.
  # config.cache_store = :mem_cache_store

  # Use a real queuing backend for Active Job (and separate queues per environment)
  # config.active_job.queue_adapter     = :resque
  # config.active_job.queue_name_prefix = "indahash-nttd_#{Rails.env}"
  config.active_job.queue_adapter = :sidekiq
  config.action_mailer.perform_deliveries = true

  config.action_mailer.perform_caching = false
  config.action_mailer.delivery_method = :smtp
  config.action_mailer.default_url_options = {host: ENV["HOST"]}
  config.action_mailer.smtp_settings = {
    address: ENV["MAIL_ADDRESS"],
    port: ENV["MAIL_PORT"],
    domain: ENV["HOST"],
    user_name: ENV["MAIL_USERNAME"],
    password: ENV["MAIL_PASSWORD"],
    authentication: "plain",
    enable_starttls_auto: true
  }

  # Ignore bad email addresses and do not raise email delivery errors.
  # Set this to true and configure the email server for immediate delivery to raise delivery errors.
  # config.action_mailer.raise_delivery_errors = false

  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
  # the I18n.default_locale when a translation cannot be found).
  config.i18n.fallbacks = true

  # Send deprecation notices to registered listeners.
  config.active_support.deprecation = :notify

  # Use default logging formatter so that PID and timestamp are not suppressed.
  config.log_formatter = ::Logger::Formatter.new

  # Use a different logger for distributed setups.
  # require 'syslog/logger'
  # config.logger = ActiveSupport::TaggedLogging.new(Syslog::Logger.new 'app-name')

  if ENV["RAILS_LOG_TO_STDOUT"].present?
    logger           = ActiveSupport::Logger.new(STDOUT)
    logger.formatter = config.log_formatter
    config.logger    = ActiveSupport::TaggedLogging.new(logger)
  end

  # Do not dump schema after migrations.
  config.active_record.dump_schema_after_migration = false
end

staging.rb

# config/deploy/staging.rb
if ENV["LOCAL_DEPLOY"]
  server "localhost", user: "deploy", roles: %w[app db worker]
else
  instances = fetch(:instances)

  instances.each do |role_name, hosts|
    roles = [role_name]
    hosts.each_with_index do |host, i|
      roles << "db" if i.zero?
      server host, user: "deploy", roles: roles
    end
  end
end