Class: CloudInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/cloud_info.rb,
lib/cloud_info/cli.rb,
lib/cloud_info/version.rb,
lib/cloud_info/instances.rb

Overview

usage: require “cloud_info” irb(main):003:0> cloud_info = CloudInfo.new(“prod”,:private_key => “~/.ssh/id_rsa-private-key”) irb(main):005:0> pp cloud_info.apps [[“prod_app0”, “xxx.xxx.xxx.xxx”],

["prod_app1", "xxx.xxx.xxx.xxx"],
["prod_app2", "xxx.xxx.xxx.xxx"],
["prod_app3", "xxx.xxx.xxx.xxx"]]

Defined Under Namespace

Classes: CLI, Instances

Constant Summary collapse

Version = 
"0.1.6"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(env_name, options = {}) ⇒ CloudInfo

Returns a new instance of CloudInfo.



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# File 'lib/cloud_info.rb', line 19

def initialize(env_name, options = {})
  @env_name = env_name
  @options = options
  @cache_path = options[:cache_path] || 'config/cloud_info.yml'
end

Instance Attribute Details

#env_name ⇒ Object (readonly)

Returns the value of attribute env_name.



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# File 'lib/cloud_info.rb', line 18

def env_name
  @env_name
end

Class Method Details

.all_hosts(options = {}) ⇒ Object 



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# File 'lib/cloud_info.rb', line 61

def self.all_hosts(options = {})
  all_hosts = {}
  environments = Instances.ey_environments
  environments.each do |env|
    info = CloudInfo.new(env, options)
    hosts = info.hosts
    # pp env
    # pp hosts
    all_hosts.merge!(hosts)
  end
  all_hosts
end

.read_yaml(path) ⇒ Object 



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# File 'lib/cloud_info.rb', line 79

def self.read_yaml(path)
  YAML.load(IO.read(path))
end

.write_yaml(path, hosts) ⇒ Object 



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# File 'lib/cloud_info.rb', line 74

def self.write_yaml(path, hosts)
  File.open(path, 'w') do |out|
    out.write(hosts.to_yaml)
  end
end

Instance Method Details

#app_master ⇒ Object 



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# File 'lib/cloud_info.rb', line 51

def app_master
  apps[0][1]
end

#apps ⇒ Object 



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# File 'lib/cloud_info.rb', line 48

def apps
  apps = hosts.select{|k,v| k =~ Regexp.new("#{@env_name}_app")}.sort {|a,b| a[0] <=> b[0] }
end

#djs ⇒ Object 



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# File 'lib/cloud_info.rb', line 57

def djs
  utils = hosts.select{|k,v| k =~ Regexp.new("#{@env_name}_dj")}.sort {|a,b| a[0] <=> b[0] }
end

#hosts ⇒ Object

if a cache exist it uses it instead of finding the servers



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# File 'lib/cloud_info.rb', line 26

def hosts
  use_cache = @options[:use_cache]
  # check yaml file first
  if use_cache and File.exist?(@cache_path)
    @hosts = (CloudInfo.read_yaml(@cache_path) || {})[env_name]
  end
  
  unless @hosts
    @instances = Instances.new(self, @options)
    @hosts = @instances.hosts
    
    if File.exist?(@cache_path)
      all_hosts = (CloudInfo.read_yaml(@cache_path) || {})
    else
      all_hosts = {}
    end
    all_hosts[env_name] = @hosts unless @hosts.empty? # do not replace cached version if its empty
    CloudInfo.write_yaml(@cache_path, all_hosts)
  end
  @hosts
end

#utils ⇒ Object 



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# File 'lib/cloud_info.rb', line 54

def utils
  utils = hosts.select{|k,v| k =~ Regexp.new("#{@env_name}_util")}.sort {|a,b| a[0] <=> b[0] }
end