通过 systemd 启动时，sinatra 不会加载配置数据

Question

我有一个 sinatra 应用程序。当通过捆绑器在本地加载时，一切都很好。当我通过 systemd 加载应用程序时，应用程序启动了，但配置文件似乎没有加载。它说在它加载的日志中，但值在应用程序中不可用

单元文件：

[Unit]
Description=PNL: Puppet Node Lister
After=network.target

[Service]
Type=simple
ExecStart=/bin/bundle exec ruby puppetdb_node_lister.rb
KillMode=process
Environment=RACK_ENV="production"
Restart=always
User=pnl
Group=pnl
WorkingDirectory=/opt/puppetdb_node_lister

[Install]
WantedBy=multi-user.target

我的 sinatra 应用程序：

require 'rubygems'
require 'sinatra'
require 'sinatra/config_file'
require 'json'
require 'rest-client'
require 'date'
require 'time'
require 'active_support/time_with_zone'
require 'tilt/erb'

### local methods
require_relative 'lib/methods.rb'

config_file 'config.yaml'

### request area
get '/' do
 "#{settings.methods(false).inspect} <br/><br/> #{$:} <br/><br/> #{File.expand_path(File.dirname(__FILE__))}"

end

我的 yaml:

development:
  username: 'test'
  password: 'test'
  puppetdb: 'puppet.example.com'
  puppetsrv: 'puppet.example.com'
production:
  username: 'superadmin'
  password: 'somes3cret'
  puppetdb: 'puppet.example.com'
  puppetsrv: 'puppet.example.com'

/

的本地包输出

[:app_file=, :app_file, :app_file?, :logging=, :logging, :logging?, :method_override=, :method_override, :method_override?, :run=, :run, :run?, :session_secret=, :session_secret, :session_secret?, :register, :environments=, :environments, :environments?, :username=, :username, :username?, :password=, :password, :password?, :puppetdb=, :puppetdb, :puppetdb?, :puppetsrv=, :puppetsrv, :puppetsrv?, :traps=, :traps, :traps?, :running_server=, :running_server, :running_server?, :handler_name=, :handler_name, :handler_name?] 

["/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/sinatra-contrib-1.4.7/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/sinatra-1.4.7/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/tilt-2.0.4/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rubygems-update-2.6.4/hide_lib_for_update", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rest-client-1.8.0/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rack-test-0.6.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rack-protection-1.5.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rack-1.6.4/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/netrc-0.11.0/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/multi_json-1.12.1/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/mime-types-2.99.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/http-cookie-1.0.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/domain_name-0.5.20160310/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/unf-0.1.4/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/unf_ext-0.0.7.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/unf_ext-0.0.7.2/lib", "/usr/share/gems/gems/bundler-1.7.8/lib/gems/bundler-1.7.8/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/backports-3.6.8/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/activesupport-4.2.6/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/tzinfo-1.2.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/thread_safe-0.3.5/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/minitest-5.9.0/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/json-1.8.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/json-1.8.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/i18n-0.7.0/lib", "/usr/share/gems/gems/bundler-1.7.8/lib", "/usr/local/share/ruby/site_ruby", "/usr/local/lib64/ruby/site_ruby", "/usr/share/ruby/vendor_ruby", "/usr/lib64/ruby/vendor_ruby", "/usr/share/rubygems", "/usr/share/ruby", "/usr/lib64/ruby/"] 

/opt/puppetdb_node_lister

/

的系统输出

[:app_file=, :app_file, :app_file?, :logging=, :logging, :logging?, :method_override=, :method_override, :method_override?, :run=, :run, :run?, :session_secret=, :session_secret, :session_secret?, :register, :environments=, :environments, :environments?, :traps=, :traps, :traps?, :running_server=, :running_server, :running_server?, :handler_name=, :handler_name, :handler_name?] 

["/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/sinatra-contrib-1.4.7/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/sinatra-1.4.7/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/tilt-2.0.4/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rubygems-update-2.6.4/hide_lib_for_update", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rest-client-1.8.0/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rack-test-0.6.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rack-protection-1.5.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/rack-1.6.4/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/netrc-0.11.0/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/multi_json-1.12.1/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/mime-types-2.99.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/http-cookie-1.0.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/domain_name-0.5.20160310/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/unf-0.1.4/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/unf_ext-0.0.7.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/unf_ext-0.0.7.2/lib", "/usr/share/gems/gems/bundler-1.7.8/lib/gems/bundler-1.7.8/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/backports-3.6.8/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/activesupport-4.2.6/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/tzinfo-1.2.2/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/thread_safe-0.3.5/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/minitest-5.9.0/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/json-1.8.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/json-1.8.3/lib", "/opt/puppetdb_node_lister/vendor/bundle/ruby/gems/i18n-0.7.0/lib", "/usr/share/gems/gems/bundler-1.7.8/lib", "/usr/local/share/ruby/site_ruby", "/usr/local/lib64/ruby/site_ruby", "/usr/share/ruby/vendor_ruby", "/usr/lib64/ruby/vendor_ruby", "/usr/share/rubygems", "/usr/share/ruby", "/usr/lib64/ruby/"] 

/opt/puppetdb_node_lister

可以看出，如果通过 systemd 加载，设置中的值（来自 yaml）会丢失。

有人可以帮我吗？我这样做对吗，还是我遗漏了什么？

Answer 1

我觉得你的 systemd 配置不错。您正确设置了环境变量和 WorkingDirectory。

用只转储环境和当前目录的东西替换你的应用程序。运行这个测试应用程序通过捆绑器，也通过 systemd。

您应该会发现 systemd 设置的环境与您的替代方法之间仍然存在一些差异。解决分歧。 :)

Answer 2

毕竟是

Environment=RACK_ENV="production"

哪个更像

Environment=RACK_ENV=production

此更改后，一切正常！

通过 systemd 启动时，sinatra 不会加载配置数据

sinatra will not load config data when started via systemd

ruby

bundle

sinatra

systemd