Class: Cucumber::Chef::TestLab

Inherits:
Object
  • Object
show all
Defined in:
lib/cucumber/chef/test_lab.rb

Constant Summary collapse

INVALID_STATES = 
%w( terminated pending )
RUNNING_STATES = 
%w( running starting-up )
SHUTDOWN_STATES = 
%w( shutdown stopping stopped shutting-down )
VALID_STATES = 
RUNNING_STATES+SHUTDOWN_STATES

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stdout = STDOUT, stderr = STDERR, stdin = STDIN) ⇒ TestLab

Returns a new instance of TestLab.



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# File 'lib/cucumber/chef/test_lab.rb', line 38

def initialize(stdout=STDOUT, stderr=STDERR, stdin=STDIN)
  @stdout, @stderr, @stdin = stdout, stderr, stdin
  @stdout.sync = true if @stdout.respond_to?(:sync=)

  @connection = Fog::Compute.new(
    :provider => 'AWS',
    :aws_access_key_id => Cucumber::Chef::Config[:aws][:aws_access_key_id],
    :aws_secret_access_key => Cucumber::Chef::Config[:aws][:aws_secret_access_key],
    :region => Cucumber::Chef::Config[:aws][:region]
  )
  ensure_security_group
end

Instance Attribute Details

#connection ⇒ Object (readonly)

Returns the value of attribute connection.



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# File 'lib/cucumber/chef/test_lab.rb', line 28

def connection
  @connection
end

#server ⇒ Object (readonly)

Returns the value of attribute server.



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# File 'lib/cucumber/chef/test_lab.rb', line 28

def server
  @server
end

#stderr ⇒ Object

Returns the value of attribute stderr.



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# File 'lib/cucumber/chef/test_lab.rb', line 29

def stderr
  @stderr
end

#stdin ⇒ Object

Returns the value of attribute stdin.



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# File 'lib/cucumber/chef/test_lab.rb', line 29

def stdin
  @stdin
end

#stdout ⇒ Object

Returns the value of attribute stdout.



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# File 'lib/cucumber/chef/test_lab.rb', line 29

def stdout
  @stdout
end

Instance Method Details

#clients ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 291

def clients
  Cucumber::Chef.load_knife_config
  query = "tags:#{Cucumber::Chef::Config[:mode]} AND tags:#{Cucumber::Chef::Config[:user]}"
  $logger.debug { "query(#{query})" }
  clients, offset, total = ::Chef::Search::Query.new.search("client", URI.escape(query))
  clients.compact
end

#create ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 53

def create
  if (lab_exists? && (@server = labs_running.first))
    @stdout.puts("A test lab already exists using the AWS credentials you have supplied; attempting to reprovision it.")
  else
    server_definition = {
      :image_id => Cucumber::Chef::Config.aws_image_id,
      :groups => Cucumber::Chef::Config[:aws][:aws_security_group],
      :flavor_id => Cucumber::Chef::Config[:aws][:aws_instance_type],
      :key_name => Cucumber::Chef::Config[:aws][:aws_ssh_key_id],
      :availability_zone => Cucumber::Chef::Config[:aws][:availability_zone],
      :tags => { "purpose" => "cucumber-chef", "cucumber-chef-mode" => Cucumber::Chef::Config[:mode] },
      :identity_file => Cucumber::Chef::Config[:aws][:identity_file]
    }
    if (@server = @connection.servers.create(server_definition))
      @stdout.puts("Provisioning cucumber-chef test lab platform.")

      @stdout.print("Waiting for instance...")
      Cucumber::Chef. do
        @server.wait_for { ready? }
      end
      @stdout.puts("done.\n")

      tag_server

      @stdout.print("Waiting for 20 seconds...")
      Cucumber::Chef. do
        sleep(20)
      end
      @stdout.print("done.\n")
    end
  end

  if @server
    @stdout.print("Waiting for SSHD...")
    Cucumber::Chef. do
      Cucumber::Chef::TCPSocket.new(@server.public_ip_address, 22).wait
    end
    @stdout.puts("done.\n")
  end

  @server

rescue Exception => e
  $logger.fatal { e.message }
  $logger.fatal { "Backtrace:\n#{e.backtrace.join("\n")}" }
  raise TestLabError, e.message
end

#destroy ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 103

def destroy
  if ((l = labs).count > 0)
    @stdout.puts("Destroying Servers:")
    l.each do |server|
      @stdout.puts("  * #{server.public_ip_address}")
      server.destroy
    end
  else
    @stdout.puts("There are no cucumber-chef test labs to destroy!")
  end

rescue Exception => e
  $logger.fatal { e.message }
  $logger.fatal { e.backtrace.join("\n") }
  raise TestLabError, e.message
end

#info ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 174

def info
  if lab_exists?
    labs.each do |lab|
      @stdout.puts("Instance ID: #{lab.id}")
      @stdout.puts("State: #{lab.state}")
      @stdout.puts("Username: #{lab.username}") if lab.username
      if (lab.public_ip_address || lab.private_ip_address)
        @stdout.puts
        @stdout.puts("IP Address:")
        @stdout.puts("  Public...: #{lab.public_ip_address}") if lab.public_ip_address
        @stdout.puts("  Private..: #{lab.private_ip_address}") if lab.private_ip_address
      end
      if (lab.dns_name || lab.private_dns_name)
        @stdout.puts
        @stdout.puts("DNS:")
        @stdout.puts("  Public...: #{lab.dns_name}") if lab.dns_name
        @stdout.puts("  Private..: #{lab.private_dns_name}") if lab.private_dns_name
      end
      if (lab.tags.count > 0)
        @stdout.puts
        @stdout.puts("Tags:")
        lab.tags.to_hash.each do |k,v|
          @stdout.puts("  #{k}: #{v}")
        end
      end
      if lab.public_ip_address
        @stdout.puts
        @stdout.puts("Chef-Server WebUI:")
        @stdout.puts("  http://#{lab.public_ip_address}:4040/")
      end
      @stdout.puts
      if (labs_running.include?(lab) && (n = nodes))
        @stdout.puts
        @stdout.puts("Nodes:")
        n.each do |node|
          @stdout.puts("  * #{node.name} (#{node.cloud.public_ipv4})")
        end
      end
      if (labs_running.include?(lab) && (c = clients))
        @stdout.puts
        @stdout.puts("Clients:")
        c.each do |client|
          @stdout.puts("  * #{client.name}")
        end
      end
    end
  else
    @stdout.puts("There are no cucumber-chef test labs to display information for!")
  end

rescue Exception => e
  $logger.fatal { e.message }
  $logger.fatal { e.backtrace.join("\n") }
  raise TestLabError, e.message
end

#lab_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cucumber/chef/test_lab.rb', line 232

def lab_exists?
  (labs.size > 0)
end

#labs ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 238

def labs
  results = @connection.servers.select do |server|
    $logger.debug("candidate") { "ID=#{server.id}, state='#{server.state}'" }
    ( server.tags['cucumber-chef-mode'] == Cucumber::Chef::Config[:mode].to_s &&
      server.tags['cucumber-chef-user'] == Cucumber::Chef::Config[:user].to_s &&
      VALID_STATES.any?{ |state| state == server.state } )
  end
  results.each do |server|
    $logger.debug("results") { "ID=#{server.id}, state='#{server.state}'" }
  end
  results
end

#labs_running ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 253

def labs_running
  results = @connection.servers.select do |server|
    $logger.debug("candidate") { "ID=#{server.id}, state='#{server.state}'" }
    ( server.tags['cucumber-chef-mode'] == Cucumber::Chef::Config[:mode].to_s &&
      server.tags['cucumber-chef-user'] == Cucumber::Chef::Config[:user].to_s &&
      RUNNING_STATES.any?{ |state| state == server.state } )
  end
  results.each do |server|
    $logger.debug("results") { "ID=#{server.id}, state='#{server.state}'" }
  end
  results
end

#labs_shutdown ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 268

def labs_shutdown
  results = @connection.servers.select do |server|
    $logger.debug("candidate") { "ID=#{server.id}, state='#{server.state}'" }
    ( server.tags['cucumber-chef-mode'] == Cucumber::Chef::Config[:mode].to_s &&
      server.tags['cucumber-chef-user'] == Cucumber::Chef::Config[:user].to_s &&
      SHUTDOWN_STATES.any?{ |state| state == server.state } )
  end
  results.each do |server|
    $logger.debug("results") { "ID=#{server.id}, state='#{server.state}'" }
  end
  results
end

#nodes ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 283

def nodes
  Cucumber::Chef.load_knife_config
  query = "tags:#{Cucumber::Chef::Config[:mode]} AND tags:#{Cucumber::Chef::Config[:user]}"
  $logger.debug { "query(#{query})" }
  nodes, offset, total = ::Chef::Search::Query.new.search("node", URI.escape(query))
  nodes.compact
end

#start ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 122

def start
  if (lab_exists? && (@server = labs_shutdown.first))
    if @server.start

      @stdout.print("Waiting for instance...")
      Cucumber::Chef. do
        @server.wait_for { ready? }
      end
      @stdout.puts("done.\n")

      @stdout.print("Waiting for SSHD...")
      Cucumber::Chef. do
        Cucumber::Chef::TCPSocket.new(@server.public_ip_address, 22).wait
      end
      @stdout.puts("done.\n")

      @stdout.puts("Successfully started up cucumber-chef test lab!")

      info
    else
      @stdout.puts("Failed to start up cucumber-chef test lab!")
    end
  else
    @stdout.puts("There are no available cucumber-chef test labs to start up!")
  end

rescue Exception => e
  $logger.fatal { e.message }
  $logger.fatal { e.backtrace.join("\n") }
  raise TestLabError, e.message
end

#stop ⇒ Object 



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# File 'lib/cucumber/chef/test_lab.rb', line 155

def stop
  if (lab_exists? && (@server = labs_running.first))
    if @server.stop
      @stdout.puts("Successfully shutdown cucumber-chef test lab!")
    else
      @stdout.puts("Failed to shutdown cucumber-chef test lab!")
    end
  else
    @stdout.puts("There are no available cucumber-chef test labs top shutdown!")
  end

rescue Exception => e
  $logger.fatal { e.message }
  $logger.fatal { e.backtrace.join("\n") }
  raise TestLabError, e.message
end