Class: MofaCmd

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

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#cookbook ⇒ Object

Returns the value of attribute cookbook.



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# File 'lib/mofa/mofa_cmd.rb', line 6

def cookbook
  @cookbook
end

#hostlist ⇒ Object

Returns the value of attribute hostlist.



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# File 'lib/mofa/mofa_cmd.rb', line 7

def hostlist
  @hostlist
end

#runlist_map ⇒ Object

Returns the value of attribute runlist_map.



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# File 'lib/mofa/mofa_cmd.rb', line 8

def runlist_map
  @runlist_map
end

#token ⇒ Object

Returns the value of attribute token.



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# File 'lib/mofa/mofa_cmd.rb', line 5

def token
  @token
end

Class Method Details

.create(cookbook, hostlist, runlist_map, token) ⇒ Object 



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# File 'lib/mofa/mofa_cmd.rb', line 14

def self.create(cookbook, hostlist, runlist_map, token)
  mofa_cmd = MofaCmd.new
  mofa_cmd.token = token
  mofa_cmd.cookbook = cookbook
  mofa_cmd.hostlist = hostlist
  mofa_cmd.runlist_map = runlist_map
  mofa_cmd
end

.generate_token ⇒ Object 



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# File 'lib/mofa/mofa_cmd.rb', line 10

def self.generate_token
  Digest::SHA1.hexdigest([Time.now, rand].join)[0..10]
end

Instance Method Details

#cleanup ⇒ Object 



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# File 'lib/mofa/mofa_cmd.rb', line 45

def cleanup
  cookbook.cleanup
end

#execute ⇒ Object 



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# File 'lib/mofa/mofa_cmd.rb', line 28

def execute
  cookbook.execute
  hostlist.retrieve
  runlist_map.generate

  puts "Runlist Map: #{runlist_map.mp.inspect}"
  puts "Hostlist before runlist filtering: #{hostlist.list.inspect}"

  hostlist.filter_by_runlist_map(runlist_map)

  puts "Hostlist after runlist filtering: #{hostlist.list.inspect}"

  exit_code = run_chef_solo_on_hosts

  exit_code
end

#prepare ⇒ Object 



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# File 'lib/mofa/mofa_cmd.rb', line 23

def prepare
  cookbook.prepare
  fail "Hostlist Service not reachable! (cannot ping #{hostlist.service_url})" unless hostlist.up?
end

#run_chef_solo_on_hosts ⇒ Object

FIXME This Code is Copy’n’Pasted from the old mofa tooling. Only to make the MVP work in time!! This needs to be refactored ASAP.



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# File 'lib/mofa/mofa_cmd.rb', line 53

def run_chef_solo_on_hosts
  time = Time.new
  puts 'Chef-Solo Run started at ' + time.strftime('%Y-%m-%d %H:%M:%S')
  puts "Will use ssh_user #{Mofa::Config.config['ssh_user']} and ssh_key_file #{Mofa::Config.config['ssh_keyfile']}"
  at_least_one_chef_solo_run_failed = false
  chef_solo_runs = {}
  host_index = 0
  hostlist.list.each do |hostname|
    host_index = host_index + 1
    puts
    puts "----------------------------------------------------------------------"
    puts "Chef-Solo on Host #{hostname} (#{host_index}/#{hostlist.list.length.to_s})"
    puts "----------------------------------------------------------------------"
    chef_solo_runs.store(hostname, {})

    # do only one for faster dev-cycle...
    #next unless hostname.match(/^dash/)

    puts "Pinging host #{hostname}..."
    exit_status = system("ping -q -c 1 #{hostname} >/dev/null 2>&1")
    unless exit_status then
      puts "  --> Host #{hostname} is unavailable!"
      chef_solo_runs[hostname].store('status', 'UNAVAIL')
      chef_solo_runs[hostname].store('status_msg', "Host #{hostname} unreachable.")
    else
      puts "  --> Host #{hostname} is available."
      prerequesits_met = true
      # Create a temp working dir on the target host
      solo_dir = '/var/tmp/' + time.strftime('%Y-%m-%d_%H%M%S')
      Net::SSH.start(hostname, Mofa::Config.config['ssh_user'], :keys => [Mofa::Config.config['ssh_keyfile']], :verbose => :error) do |ssh|
        puts "Remotely creating solo_dir \"#{solo_dir}\" on host #{hostname}"
        # remotely create the temp folder
        out = ssh_exec!(ssh, "[ -d #{solo_dir} ] || mkdir #{solo_dir}")
        puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0

        # remotely create a data_bags folder structure on the target host
        if File.directory?("#{cookbook.source_dir}/data_bags")
          Dir.entries("#{cookbook.source_dir}/data_bags").select{|f| !f.match(/^\.\.?$/)}.each do |data_bag|
            puts "Remotely creating data_bags dir \"#{solo_dir}/data_bags/#{data_bag}\""
            out = ssh_exec!(ssh, "[ -d #{solo_dir}/data_bags/#{data_bag} ] || mkdir -p #{solo_dir}/data_bags/#{data_bag}")
            puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          end
        end
      end
    end

    # skip the rest if prerequesits are not met
    next unless prerequesits_met


    Net::SFTP.start(hostname, Mofa::Config.config['ssh_user'], :keys => [Mofa::Config.config['ssh_keyfile']], :verbose => :error) do |sftp|

      # remotely creating solo.rb
      puts "Remotely creating \"#{solo_dir}/solo.rb\""
      sftp.file.open("#{solo_dir}/solo.rb", "w") do |file|
        solo_rb = <<-"EOF"
      cookbook_path [ "#{solo_dir}/cookbooks" ]
      data_bag_path "#{solo_dir}/data_bags"
      log_level :info
      log_location "#{solo_dir}/log"
      verify_api_cert true
        EOF

        file.write(solo_rb)
      end

      # remotely creating node.json
      puts "Remotely creating \"#{solo_dir}/node.json\""
      node_json = {}
      node_json.store('run_list', runlist_map.mp[hostname])

      sftp.file.open("#{solo_dir}/node.json", "w") do |file|
        file.write(JSON.pretty_generate(node_json))
      end

      # remotely create data_bag items
      if File.directory?("#{cookbook.source_dir}/data_bags")
        Dir.entries("#{cookbook.source_dir}/data_bags").select{|f| !f.match(/^\.\.?$/)}.each do |data_bag|
          Dir.entries("#{cookbook.source_dir}/data_bags/#{data_bag}").select{|f| f.match(/\.json$/)}.each do |data_bag_item|
            puts "Uploading data_bag_item #{data_bag_item}... "
            sftp.upload!("#{cookbook.source_dir}/data_bags/#{data_bag}/#{data_bag_item}", "#{solo_dir}/data_bags/#{data_bag}/#{data_bag_item}")
            puts "OK."
          end
        end
      end

      if cookbook.instance_of?(SourceCookbook)
        puts "Cookbook is a SourceCookbook! Uploading Snapshot Package #{cookbook.pkg_name}... "
        sftp.upload!("#{cookbook.pkg_dir}/#{cookbook.pkg_name}", "#{solo_dir}/#{cookbook.pkg_name}")
        puts "OK."
      end

      # Do it -> Execute the chef-solo run!
      Net::SSH.start(hostname, Mofa::Config::config['ssh_user'], :keys => [Mofa::Config::config['ssh_keyfile']], :verbose => :error) do |ssh|

        if cookbook.instance_of?(SourceCookbook)
          puts "Remotely unpacking Snapshot Package #{cookbook.pkg_name}... "
          out = ssh_exec!(ssh, "cd #{solo_dir}; tar xvfz #{cookbook.pkg_name}")
          if out[0] != 0
            puts "ERROR (#{out[0]}): #{out[2]}"
            puts out[1]
          else
            puts "OK."
          end
        end

        puts "Remotely running chef-solo -c #{solo_dir}/solo.rb -j #{solo_dir}/node.json"
        out = ssh_exec!(ssh, "sudo chef-solo -c #{solo_dir}/solo.rb -j #{solo_dir}/node.json")
        if out[0] != 0
          puts "ERROR (#{out[0]}): #{out[2]}"
          out = ssh_exec!(ssh, "sudo cat #{solo_dir}/log")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          puts out[1]
          chef_solo_runs[hostname].store('status', 'FAIL')
          chef_solo_runs[hostname].store('status_msg', out[1])
        else
          unless Mofa::CLI::option_debug
            out = ssh_exec!(ssh, "sudo grep 'Chef Run' #{solo_dir}/log")
            puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
            puts "Done."
          else
            out = ssh_exec!(ssh, "sudo cat #{solo_dir}/log")
            puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
            puts out[1]
          end
          chef_solo_runs[hostname].store('status', 'SUCCESS')
          chef_solo_runs[hostname].store('status_msg', '')
        end
        out = ssh_exec!(ssh, "sudo chown -R #{Mofa::Config.config['ssh_user']}.#{Mofa::Config.config['ssh_user']} #{solo_dir}")
        puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
      end
    end
    at_least_one_chef_solo_run_failed = true if chef_solo_runs[hostname]['status'] == 'FAIL'
  end

  # ------- print out report
  puts
  puts "----------------------------------------------------------------------"
  puts "Chef-Solo Run REPORT"
  puts "----------------------------------------------------------------------"
  puts "Chef-Solo has been run on #{chef_solo_runs.keys.length.to_s} hosts."

  chef_solo_runs.each do |hostname, content|
    status_msg = ''
    status_msg = "(#{content['status_msg']})" if content['status'] == 'FAIL'
    puts "#{content['status']}: #{hostname} #{status_msg}"
  end

  exit_code = 0
  if at_least_one_chef_solo_run_failed
    exit_code = 1
  end

  puts "Exiting with exit code #{exit_code}."
  exit_code

end

#ssh_exec!(ssh, command) ⇒ Object 



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# File 'lib/mofa/mofa_cmd.rb', line 211

def ssh_exec!(ssh, command)
  stdout_data = ""
  stderr_data = ""
  exit_code = nil
  exit_signal = nil
  ssh.open_channel do |channel|
    channel.exec(command) do |ch, success|
      unless success
        abort "FAILED: couldn't execute command (ssh.channel.exec)"
      end
      channel.on_data do |ch, data|
        stdout_data+=data
      end

      channel.on_extended_data do |ch, type, data|
        stderr_data+=data
      end

      channel.on_request("exit-status") do |ch, data|
        exit_code = data.read_long
      end

      channel.on_request("exit-signal") do |ch, data|
        exit_signal = data.read_long
      end
    end
  end
  ssh.loop
  [exit_code, stdout_data, stderr_data, exit_signal]
end