Class: ProvisionCmd

Inherits:
MofaCmd show all
Defined in:
lib/mofa/provision_cmd.rb

Instance Attribute Summary collapse

Attributes inherited from MofaCmd

#cookbook, #options, #token

Instance Method Summary collapse

Methods inherited from MofaCmd

generate_token, #ssh_exec!

Constructor Details

#initialize(token, cookbook) ⇒ ProvisionCmd

Returns a new instance of ProvisionCmd.



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# File 'lib/mofa/provision_cmd.rb', line 9

def initialize(token, cookbook)
  super(token, cookbook)
end

Instance Attribute Details

#attributes_map ⇒ Object

Returns the value of attribute attributes_map.



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

def attributes_map
  @attributes_map
end

#hostlist ⇒ Object

Returns the value of attribute hostlist.



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

def hostlist
  @hostlist
end

#runlist_map ⇒ Object

Returns the value of attribute runlist_map.



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

def runlist_map
  @runlist_map
end

Instance Method Details

#cleanup ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 38

def cleanup
  cookbook.cleanup
end

#create_data_bags(sftp, hostname, solo_dir) ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 107

def create_data_bags(sftp, hostname, solo_dir)
  puts "Remotely creating data_bags items on #{hostname}..."
  if File.directory?("#{cookbook.source_dir}/data_bags")
    Dir.entries("#{cookbook.source_dir}/data_bags/").each do |data_bag|
      next if data_bag =~ /^\.\.?$/
      puts "Found data_bag #{data_bag}... "
      Dir.entries("#{cookbook.source_dir}/data_bags/#{data_bag}").select { |f| f.match(/\.json$/) }.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
end

#create_node_json(sftp, hostname, solo_dir, attributes_map) ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 94

def create_node_json(sftp, hostname, solo_dir, attributes_map)
  puts "Remotely creating \"#{solo_dir}/node.json\" on #{hostname}..."
  node_json = {}
  node_json.store('run_list', runlist_map.mp[hostname])
  attributes_map.mp[hostname].each do |key, value|
    node_json.store(key, value)
  end

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

#create_solo_rb(sftp, hostname, solo_dir) ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 81

def create_solo_rb(sftp, hostname, solo_dir)
  puts "Remotely creating \"#{solo_dir}/solo.rb\" on #{hostname}..."
  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"
  verify_api_cert true
    EOF

    file.write(solo_rb)
  end
end

#execute(ssh_port, ssh_user, ssh_keyfile) ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 17

def execute(ssh_port, ssh_user, ssh_keyfile)
  cookbook.execute

  hostlist.retrieve
  runlist_map.generate
  attributes_map.generate

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

  hostlist.filter_by_runlist_map(runlist_map)

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

  exit_code = run_chef_solo_on_hosts(ssh_port, ssh_user, ssh_keyfile)

  exit_code
end

#host_avail?(hostname) ⇒ Boolean

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.

Returns:

  • (Boolean) 


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# File 'lib/mofa/provision_cmd.rb', line 46

def host_avail?(hostname)
  host_available = false
  puts "Pinging host #{hostname}..."
  exit_status = system("ping -q -c 1 #{hostname} >/dev/null 2>&1")
  if exit_status
    puts "  --> Host #{hostname} is available."
    host_available = true
  else
    puts "  --> Host #{hostname} is unavailable!"
  end
  host_available
end

#prepare ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 13

def prepare
  cookbook.prepare
end

#prepare_host(hostname, host_index, solo_dir, ssh_port, ssh_user, ssh_keyfile) ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 59

def prepare_host(hostname, host_index, solo_dir, ssh_port, ssh_user, ssh_keyfile)
  puts
  puts '----------------------------------------------------------------------'
  puts "Chef-Solo on Host #{hostname} (#{host_index}/#{hostlist.list.length})"
  puts '----------------------------------------------------------------------'
  Net::SSH.start(hostname, ssh_user, keys: [ssh_keyfile], port: ssh_port, use_agent: false, 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

#run_chef_solo_on_hosts(ssh_port, ssh_user, ssh_keyfile) ⇒ Object 



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# File 'lib/mofa/provision_cmd.rb', line 122

def run_chef_solo_on_hosts(ssh_port, ssh_user, ssh_keyfile)
  time = Time.new
  # Create a temp working dir on the target host
  solo_dir = '/var/tmp/' + time.strftime('%Y-%m-%d_%H%M%S')
  puts
  puts 'Chef-Solo Run started at ' + time.strftime('%Y-%m-%d %H:%M:%S')
  puts "Will use ssh_user '#{ssh_user}', ssh_port '#{ssh_port}' and ssh_keyfile '#{ssh_keyfile}'"
  at_least_one_chef_solo_run_failed = false
  chef_solo_runs = {}
  host_index = 0
  hostlist.list.each do |hostname|
    host_index += 1
    chef_solo_runs.store(hostname, {})

    unless options.key?('ignore_ping') && options[:ignore_ping] == true
      unless host_avail?(hostname)
        chef_solo_runs[hostname].store('status', 'UNAVAIL')
        chef_solo_runs[hostname].store('status_msg', "Host #{hostname} unreachable.")
        at_least_one_chef_solo_run_failed = true
        next
      end
    end

    prepare_host(hostname, host_index, solo_dir, ssh_port, ssh_user, ssh_keyfile)

    Net::SFTP.start(hostname, ssh_user, keys: [ssh_keyfile], port: ssh_port, use_agent: false, verbose: :error) do |sftp|
      # remotely creating solo.rb
      create_solo_rb(sftp, hostname, solo_dir)

      # remotely creating node.json
      create_node_json(sftp, hostname, solo_dir, attributes_map)

      # remotely create data_bag items
      create_data_bags(sftp, hostname, solo_dir)

      puts "Uploading Package #{cookbook.pkg_name}... "
      sftp.upload!("#{cookbook.pkg_dir}/#{cookbook.pkg_name}", "#{solo_dir}/#{cookbook.pkg_name}")
      puts 'OK.'

      File.open("#{cookbook.pkg_dir}/log", 'w') do |log_file|
        # Do it -> Execute the chef-solo run!
        begin
          begin
            Net::SSH.start(hostname, ssh_user, keys: [ssh_keyfile], port: ssh_port, use_agent: false, verbose: :error) do |ssh|
              puts "Remotely unpacking Cookbook Package #{cookbook.pkg_name}... "
              ssh.exec!("cd #{solo_dir}; tar xvfz #{cookbook.pkg_name}") do |_ch, _stream, line|
                puts line if Mofa::CLI.option_debug
                log_file.write(line) if Mofa::CLI.option_debug
              end
              puts 'OK.'
            end
          rescue StandardError => e
            status_msg = "ERROR: Unpacking cookbook archive on remote host #{hostname} failed (#{e.message})!"
            chef_solo_runs[hostname].store('status', 'FAIL')
            chef_solo_runs[hostname].store('status_msg', status_msg)
            puts status_msg
            log_file.write(status_msg)
            raise e
          end
          begin
            Net::SSH.start(hostname, ssh_user, keys: [ssh_keyfile], port: ssh_port, use_agent: false, verbose: :error) do |ssh|
              puts "Remotely running chef-solo -c #{solo_dir}/solo.rb -j #{solo_dir}/node.json"
              chef_run_exit_code = 0
              ssh.exec!("sudo chef-solo -c #{solo_dir}/solo.rb -j #{solo_dir}/node.json") do |_ch, _stream, line|
                puts line if Mofa::CLI.option_verbose || Mofa::CLI.option_debug
                log_file.write(line)
                chef_run_exit_code = 1 if line =~ /Chef run process exited unsuccessfully/ || line =~ /chef-solo: command not found/
              end
              raise 'Chef run process exited unsuccessfully' if chef_run_exit_code != 0
              chef_solo_runs[hostname].store('status', 'SUCCESS')
              chef_solo_runs[hostname].store('status_msg', '')
              puts 'Chef-solo run was a SUCCESS!'
              log_file.write('chef-solo run: SUCCESS')
            end
          rescue StandardError => e
            status_msg = "ERROR: Chef-solo run on #{hostname} FAILED! (#{e.message})"
            chef_solo_runs[hostname].store('status', 'FAIL')
            chef_solo_runs[hostname].store('status_msg', status_msg)
            puts status_msg
            log_file.write(status_msg)
            raise e
          end
        rescue StandardError => e
          log_file.write('chef-solo run: FAIL')
          puts "ERRORS detected while provisioning #{hostname} (#{e.message})."
        end
        Net::SSH.start(hostname, ssh_user, keys: [ssh_keyfile], port: ssh_port, use_agent: false, verbose: :error) do |ssh|
          snapshot_or_release = cookbook.is_a?(SourceCookbook) ? 'snapshot' : 'release'
          out = ssh_exec!(ssh, "sudo chown -R #{ssh_user}.#{ssh_user} #{solo_dir}")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, '[ -d /var/lib/mofa ] || sudo mkdir /var/lib/mofa')
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "echo #{cookbook.name} | sudo tee /var/lib/mofa/last_cookbook_name")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "echo '#{snapshot_or_release}' | sudo tee /var/lib/mofa/last_cookbook_snapshot_or_release")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "echo #{cookbook.version} | sudo tee /var/lib/mofa/last_cookbook_version")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "echo #{chef_solo_runs[hostname]['status']} | sudo tee /var/lib/mofa/last_status")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "date '+%Y-%m-%d %H:%M:%S' | sudo tee /var/lib/mofa/last_timestamp")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "echo '#{solo_dir}/log' | sudo tee /var/lib/mofa/last_log")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "echo $(date '+%Y-%m-%d %H:%M:%S')': #{cookbook.name}@#{cookbook.version} (#{chef_solo_runs[hostname]['status']})' | sudo tee -a /var/lib/mofa/history")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "sudo find #{solo_dir} -type d | xargs chmod 700")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
          out = ssh_exec!(ssh, "sudo find #{solo_dir} -type f | xargs chmod 600")
          puts "ERROR (#{out[0]}): #{out[2]}" if out[0] != 0
        end
      end
      at_least_one_chef_solo_run_failed = true unless chef_solo_runs[hostname]['status'] == 'SUCCESS'
      sftp.upload!("#{cookbook.pkg_dir}/log", "#{solo_dir}/log")
    end
  end
  # ------- print out report
  puts
  puts '----------------------------------------------------------------------'
  puts 'Chef-Solo Run REPORT'
  puts '----------------------------------------------------------------------'
  puts "Chef-Solo has been run on #{chef_solo_runs.keys.length} 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 = at_least_one_chef_solo_run_failed ? 1 : 0
  puts "Exiting with exit code #{exit_code}."

  if exit_code != 0
    raise Thor::Error, "Chef client exited with non zero exit code: #{exit_code}"
  end
  exit_code
end