文件操作 - runit.rb

文件: /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/provider/service/runit.rb

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# frozen_string_literal: true

# Daemontools service management
#
# author Brice Figureau <brice-puppet@daysofwonder.com>
Puppet::Type.type(:service).provide :runit, :parent => :daemontools do
  desc <<-'EOT'
    Runit service management.

This provider manages daemons running supervised by Runit.
    When detecting the service directory it will check, in order of preference:

* `/service`
    * `/etc/service`
    * `/var/service`

The daemon directory should be in one of the following locations:

* `/etc/sv`
    * `/var/lib/service`

or this can be overridden in the service resource parameters:

service { 'myservice':
          provider => 'runit',
          path     => '/path/to/daemons',
        }

This provider supports out of the box:

* start/stop
    * enable/disable
    * restart
    * status

EOT

commands :sv => "/usr/bin/sv"

class << self
    # this is necessary to autodetect a valid resource
    # default path, since there is no standard for such directory.
    def defpath
      @defpath ||= ["/var/lib/service", "/etc/sv"].find do |path|
        Puppet::FileSystem.exist?(path) && FileTest.directory?(path)
      end
      @defpath
    end
  end

# find the service dir on this node
  def servicedir
    unless @servicedir
      ["/service", "/etc/service", "/var/service"].each do |path|
        if Puppet::FileSystem.exist?(path)
          @servicedir = path
          break
        end
      end
      raise "Could not find service directory" unless @servicedir
    end
    @servicedir
  end

def status
    begin
      output = sv "status", daemon
      return :running if output =~ /^run: /
    rescue Puppet::ExecutionFailure => detail
      unless detail.message =~ /(warning: |runsv not running$)/
        raise Puppet::Error.new("Could not get status for service #{resource.ref}: #{detail}", detail)
      end
    end
    :stopped
  end

def stop
    sv "stop", service
  end

def start
    if enabled? != :true
      enable
      # Work around issue #4480
      # runsvdir takes up to 5 seconds to recognize
      # the symlink created by this call to enable
      # TRANSLATORS 'runsvdir' is a linux service name and should not be translated
      Puppet.info _("Waiting 5 seconds for runsvdir to discover service %{service}") % { service: service }
      sleep 5
    end
    sv "start", service
  end

def restart
    sv "restart", service
  end

# disable by removing the symlink so that runit
  # doesn't restart our service behind our back
  # note that runit doesn't need to perform a stop
  # before a disable
  def disable
    # unlink the daemon symlink to disable it
    Puppet::FileSystem.unlink(service) if Puppet::FileSystem.symlink?(service)
  end
end

文件操作 - runit.rb

文件: /opt/puppetlabs/puppet/lib/ruby/vendor_ruby/puppet/provider/service/runit.rb

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