trabajo-afectivo/.gitlab/configure_environment.rb

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#!/usr/bin/env ruby
# Copyright (C) 2012-2021 Zammad Foundation, http://zammad-foundation.org/
require 'yaml'
require 'resolv'
#
# Configures the CI system
# - either (randomly) mysql or postgresql, if it is available
# - (randomly) Redis or File as web socket session back end, if Redis is available
#
# Database config happens directly in config/database.yml, other settings are written to
# .gitlab/environment.env which must be sourced in the CI configuration.
#
class ConfigureEnvironment
@env_file_content = <<~ENV_FILE_CONTENT
#!/bin/bash
FRESHENVFILE=fresh.env && test -f $FRESHENVFILE && source $FRESHENVFILE
true
ENV_FILE_CONTENT
def self.configure_redis
if ENV['REDIS_URL'].nil? || ENV['REDIS_URL'].empty? # rubocop:disable Rails/Blank
puts 'Redis is not available, using File as web socket session store.'
return
end
if [true, false].sample
puts 'Using Redis as web socket session store.'
return
end
puts 'Using File as web socket session store.'
@env_file_content += "unset REDIS_URL\n"
end
def self.configure_memcached
if ENV['MEMCACHE_SERVERS'].nil? || ENV['MEMCACHE_SERVERS'].empty? # rubocop:disable Rails/Blank
puts 'Memcached is not available, using File as Rails cache store.'
return
end
if [true, false].sample
puts 'Using memcached as Rails cache store.'
return
end
puts "Using Zammad's file store as Rails cache store."
@env_file_content += "unset MEMCACHE_SERVERS\n"
end
def self.configure_database # rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity, Metrics/PerceivedComplexity
if File.exist? File.join(__dir__, '../config/database.yml')
puts "'config/database.yml' already exists and will not be changed."
return
end
cnf = YAML.load_file(File.join(__dir__, '../config/database/database.yml'))
cnf.delete('default')
database = ENV['ENFORCE_DB_SERVICE']
# Lookup in /etc/hosts first: gitlab uses that if FF_NETWORK_PER_BUILD is not set.
if !database
hostsfile = '/etc/hosts'
database = %w[postgresql mysql].shuffle.find do |possible_database|
File.foreach(hostsfile).any? { |l| l[possible_database] }
end
end
# Lookup via DNS if needed: gitlab uses that if FF_NETWORK_PER_BUILD is enabled.
if !database
dns = Resolv::DNS.new
dns.timeouts = 3
database = %w[postgresql mysql].shuffle.find do |possible_database|
# Perform a lookup of the database host to check if it is configured as a service.
if dns.getaddress possible_database
next possible_database
end
rescue Resolv::ResolvError
# Ignore DNS lookup errors
end
end
raise "Can't find any supported database." if database.nil?
puts "Using #{database} as database service."
db_settings_map = {
'postgresql' => {
'adapter' => 'postgresql',
'username' => 'zammad',
'password' => 'zammad',
'host' => 'postgresql', # db alias from gitlab-ci.yml
},
'mysql' => {
'adapter' => 'mysql2',
'username' => 'root',
'password' => 'zammad',
'host' => 'mysql', # db alias from gitlab-ci.yml
}
}
# fetch DB settings from settings map and fallback to postgresql
db_settings = db_settings_map.fetch(database) { db_settings_map['postgresql'] }
%w[development test production].each do |environment|
cnf[environment].merge!(db_settings)
end
File.write(File.join(__dir__, '../config/database.yml'), Psych.dump(cnf))
end
def self.write_env_file
File.write(File.join(__dir__, 'environment.env'), @env_file_content)
end
def self.run
configure_redis
configure_memcached
configure_database
write_env_file
end
end
ConfigureEnvironment.run