Class: Control_P

Inherits:
Object
  • Object
show all
Defined in:
lib/process_controller.rb

Constant Summary collapse

OPTIONS_ATTRIBUTES = 
{action: 'action', pid_filename: 'pid_filename', find_pid_by: 'find_pid_by',
app_name: 'app_name', port_num: 'port_num', app_filename: 'app_filename',
http_server: 'http_server', kill_command: 'kill_command',
restart_command: 'restart_command', environment: 'environment',
start_command: 'start_command', skip_workers_message: 'skip_workers_message'}.with_indifferent_access
FIND_BY_OPTIONS = 
{app_filename: 'app_filename', port_num: 'port_num', app_name: 'app_name', pid_file: 'pid_file'}.with_indifferent_access
WORKERS_STARTED_EXTENSION = 
'*.started'
WORKERS_CLOSED_EXTENSION = 
'*.closed'
HOSTNAME = 
Socket.gethostname

Class Method Summary collapse

Class Method Details

.do(options) ⇒ Object

Main Method for all actions



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'lib/process_controller.rb', line 19

def self.do(options)
	options = options.with_indifferent_access
	#TODO options validations
	action 				= options.fetch(OPTIONS_ATTRIBUTES[:action], nil)
	environment 	= options.fetch(OPTIONS_ATTRIBUTES[:environment], nil)

	if action.nil? || environment.nil?
		p "didn't pass enough arguments"
		p 'Usage: {start|stop|restart|status} {env}, exiting'
		exit(1)
	end

	case action
		when 'start'
			start_actions(options)
		when 'stop'
			stop_actions(options)
		when 'restart'
			restart_actions(options)
		else
			raise "action #{action} not implemented"
	end
	# drom some reason the remote ssh is not exiting, making sure it exit here
	exit(0)
end

.helper ⇒ Object 



45
46
47
 
# File 'lib/process_controller.rb', line 45

def self.helper
	ControlHelper
end

.restart_actions(options) ⇒ Object 



49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
 
# File 'lib/process_controller.rb', line 49

def self.restart_actions(options)

	http_server = options.fetch(OPTIONS_ATTRIBUTES[:http_server], false)

	#means it's seamless, just need to send a kill signal and it will restart it self
	if http_server
		helper.restart_the_app!(options)
		sleep(5)
	else
		helper.kill_the_old_process_if_needed(options)
		helper.start_a_new_process!(options)
	end

	helper.check_for_success_in_starting_new_process!(options)
end

.start_actions(options) ⇒ Object 



65
66
67
68
69
70
 
# File 'lib/process_controller.rb', line 65

def self.start_actions(options)
	helper.exit_if_old_process_is_already_running!(options)

	helper.start_a_new_process!(options)
	helper.check_for_success_in_starting_new_process!(options)
end

.stop_actions(options) ⇒ Object 



72
73
74
75
76
 
# File 'lib/process_controller.rb', line 72

def self.stop_actions(options)
	helper.exit_if_not_running!(options)

	helper.kill_the_process!(options)
end