Class: Foreman::Engine

Inherits:
Object
  • Object
show all
Extended by:
Term::ANSIColor
Defined in:
lib/foreman/engine.rb

Constant Summary collapse

COLORS = 
[ cyan, yellow, green, magenta, red ]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(procfile, options = {}) ⇒ Engine

Returns a new instance of Engine.



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# File 'lib/foreman/engine.rb', line 22

def initialize(procfile, options={})
  @procfile  = Foreman::Procfile.new(procfile)
  @directory = File.expand_path(File.dirname(procfile))
  @options = options
  @environment = read_environment_files(options[:env])
end

Instance Attribute Details

#directory ⇒ Object (readonly)

Returns the value of attribute directory.



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# File 'lib/foreman/engine.rb', line 14

def directory
  @directory
end

#environment ⇒ Object (readonly)

Returns the value of attribute environment.



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# File 'lib/foreman/engine.rb', line 15

def environment
  @environment
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/foreman/engine.rb', line 16

def options
  @options
end

#procfile ⇒ Object (readonly)

Returns the value of attribute procfile.



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# File 'lib/foreman/engine.rb', line 13

def procfile
  @procfile
end

Instance Method Details

#execute(name) ⇒ Object 



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# File 'lib/foreman/engine.rb', line 43

def execute(name)
  fork procfile[name]

  trap("TERM") { puts "SIGTERM received"; terminate_gracefully }
  trap("INT")  { puts "SIGINT received";  terminate_gracefully }

  watch_for_termination
end

#port_for(process, num, base_port = nil) ⇒ Object 



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# File 'lib/foreman/engine.rb', line 56

def port_for(process, num, base_port=nil)
  base_port ||= 5000
  offset = procfile.process_names.index(process.name) * 100
  base_port.to_i + offset + num - 1
end

#processes ⇒ Object 



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# File 'lib/foreman/engine.rb', line 52

def processes
  procfile.processes
end

#start ⇒ Object 



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# File 'lib/foreman/engine.rb', line 29

def start
  proctitle "ruby: foreman master"

  processes.each do |process|
    process.color = next_color
    fork process
  end

  trap("TERM") { puts "SIGTERM received"; terminate_gracefully }
  trap("INT")  { puts "SIGINT received";  terminate_gracefully }

  watch_for_termination
end