Class: GTBase

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

Direct Known Subclasses

GTCluster

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ GTBase

Returns a new instance of GTBase.



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# File 'lib/app.rb', line 150

def initialize(args)
  @args = args
  if ENV['GT_ENV_SETTINGS']
      @env_settings = YAML::load(File.open(File.expand_path(ENV['GT_ENV_CONFIG'])))
  else
      @env_settings = YAML::load(File.open(File.expand_path("#{ENV['HOME']}/.gaptool-ma/env.yml")))
  end
  if ENV['GT_USER_SETTINGS']
      @user_settings = YAML::load(File.open(File.expand_path(ENV['GT_USER_CONFIG'])))
  else
      @user_settings = YAML::load(File.open(File.expand_path("#{ENV['HOME']}/.gaptool-ma/user.yml")))
  end
  chef_extra = {
    'rails_env' => @args[:environment],
  }
  @chefsettings = @args
  @chefsettings.merge!(chef_extra)
  if @args[:zone].to_s == ''
    zone = @env_settings['default_zone']
  else
    zone = @args[:zone]
  end
  az = zone.chop
  AWS.config(:access_key_id => @user_settings['aws_id'], :secret_access_key => @user_settings['aws_secret'], :ec2_endpoint => "ec2.#{az}.amazonaws.com")
  @ec2 = AWS::EC2.new
  def cgen
    c = Array.new
    tags = @ec2.instances.inject({}) { |m, i| m[i.id] = i.tags.to_h; m }
    tags.keys.each do |key|
      if tags[key]['gaptool'] != nil
        gaptags = eval(tags[key]['gaptool'])
        hostname = "#{gaptags[:role]}-#{gaptags[:environment]}-#{gaptags[:number]}.#{@env_settings['domain']}"
        c += [{
          :hostname => hostname,
          :recipe => gaptags[:recipe],
          :deploy => gaptags[:deploy],
          :number => gaptags[:number],
          :role => gaptags[:role],
          :environment => gaptags[:environment],
          :apps => eval(gaptags[:apps])
        }]
      end
    end
    return c
  end
  if File.exists?("#{ENV['HOME']}/.gaptool-ma/aws.yml")
    $c = YAML::load(File.open(File.expand_path("#{ENV['HOME']}/.gaptool-ma/aws.yml")))
  else
    $c = cgen()
  end
  cwrite = fork do
    File.open(File.expand_path("#{ENV['HOME']}/.gaptool-ma/aws.yml"), 'w') {|f| f.write(cgen().to_yaml)}
  end
  Process.detach(cwrite)
end

Instance Method Details

#cgen ⇒ Object 



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# File 'lib/app.rb', line 175

def cgen
  c = Array.new
  tags = @ec2.instances.inject({}) { |m, i| m[i.id] = i.tags.to_h; m }
  tags.keys.each do |key|
    if tags[key]['gaptool'] != nil
      gaptags = eval(tags[key]['gaptool'])
      hostname = "#{gaptags[:role]}-#{gaptags[:environment]}-#{gaptags[:number]}.#{@env_settings['domain']}"
      c += [{
        :hostname => hostname,
        :recipe => gaptags[:recipe],
        :deploy => gaptags[:deploy],
        :number => gaptags[:number],
        :role => gaptags[:role],
        :environment => gaptags[:environment],
        :apps => eval(gaptags[:apps])
      }]
    end
  end
  return c
end

#getCluster ⇒ Object 



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# File 'lib/app.rb', line 77

def getCluster
  hosts = Array.new
  if @args[:role]
    nodes = $c.select {|f| f[:role] == @args[:role] }.select {|i| i[:environment] == @args[:environment]}
  elsif @args[:app]
    nodes = $c.select {|i| i[:environment] == @args[:environment]}.select {|f| f[:apps].include? @args[:app]}
  end
  nodes.each {|f| hosts += [f[:hostname]]}
  return hosts
end

#isCluster? ⇒ Boolean

Returns:

  • (Boolean) 


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

def isCluster?
  return false
end

#putkey(host) ⇒ Object 



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# File 'lib/app.rb', line 113

def putkey(host)
  breakkey = @user_settings['mykey'].gsub(/\n/,'###')
  run = [
    "rm ~admin/.ssh/key 2> /dev/null",
    "echo '#{breakkey}' > /tmp/key",
    "cat /tmp/key|perl -pe 's/###/\\n$1/g' > ~admin/.ssh/key",
    "echo \"IdentitiesOnly yes\\nHost *\\n  StrictHostKeyChecking no\\n  IdentityFile ~/.ssh/key\" > ~admin/.ssh/config",
    "chmod 600 ~admin/.ssh/key",
    "chmod 600 ~admin/.ssh/config",
    "sudo rm ~#{@env_settings['user']}/.ssh/key",
    "sudo cp ~admin/.ssh/key ~#{@env_settings['user']}/.ssh/",
    "sudo cp ~admin/.ssh/config ~#{@env_settings['user']}/.ssh/",
    "sudo chown #{@env_settings['user']}:#{@env_settings['user']} ~#{@env_settings['user']}/.ssh/key",
    "sudo chown #{@env_settings['user']}:#{@env_settings['user']} ~#{@env_settings['user']}/.ssh/config",
    "sudo chmod 600 ~#{@env_settings['user']}/.ssh/key",
    "sudo chmod 600 ~#{@env_settings['user']}/.ssh/config",
    "rm /tmp/key"
  ]
  sshcmd(host, run, :quiet => true)
end

#recipeRun(host, run_list, settings = {}) ⇒ Object 



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# File 'lib/app.rb', line 205

def recipeRun(host, run_list, settings={})
  host_settings = {
    'this_server' => host,
    'run_list'    => [ "recipe[#{run_list}]" ],
    'app_user'    => @env_settings['user'],
  }
  @chefsettings.merge!(host_settings)
  @chefsettings.merge!(settings)
  @chefsettings.merge!($c.select {|f| f[:hostname] == host}.first)
  run = [
    "cd ~admin/ops; git pull",
    "echo '#{@chefsettings.to_json}' > ~admin/solo.json",
    "sudo chef-solo -c ~admin/ops/cookbooks/solo.rb -j ~admin/solo.json"
  ]
  putkey(host)
  sshcmd(host, run)
end

#singleHost ⇒ Object 



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# File 'lib/app.rb', line 147

def singleHost
  return "#{@args[:role]}-#{@args[:environment]}-#{@args[:number]}.#{@env_settings['domain']}"
end

#sshcmd(host, commands, options = {}) ⇒ Object 



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# File 'lib/app.rb', line 87

def sshcmd(host, commands, options = {})
  if options[:user]
    user = options[:user]
  else
    user = 'admin'
  end
  if options[:key]
    key = options[:key]
  else
    key = @user_settings['mykey']
  end
  Net::SSH.start(host, user, :key_data => [key], :config => false, :keys_only => true, :paranoid => false) do |ssh|
    ENV['SSH_AUTH_SOCK'] = ''
    commands.each do |command|
      if !options[:quiet]
        puts command.color(:cyan)
      end
      ssh.exec! command do
        |ch, stream, line|
        if !options[:quiet]
          puts "#{host.color(:yellow)}:#{line}"
        end
      end
    end
  end
end

#sshReachable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/app.rb', line 133

def sshReachable?
  hosts = getCluster()
  hosts.each do |host|
    begin
      puts "Checking SSH to: #{host}"
      sshcmd(host, ["exit 0"], :quiet => true)
    rescue
      puts "ERROR: Could not ssh to #{host}\nEither your connection is failing or AWS is having routing issues.\nAborting."
      exit 255
      return false
    end
  end
  return true
end