Class: Diagtool::CollectUtils

Inherits:
Object
  • Object
show all
Defined in:
lib/fluent/diagtool/collectutils.rb

Instance Method Summary collapse

Constructor Details

#initialize(conf, log_level) ⇒ CollectUtils

Returns a new instance of CollectUtils.



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# File 'lib/fluent/diagtool/collectutils.rb', line 25

def initialize(conf, log_level)
  @logger = Logger.new(STDOUT, level: log_level, formatter: proc {|severity, datetime, progname, msg|
    "#{datetime}: [Collectutils] [#{severity}] #{msg}\n"
  })
  @precheck = conf[:precheck]
  @type = conf[:type]
  @time_format = conf[:time]
  @basedir = conf[:basedir]
  @workdir = conf[:workdir]
  @outdir = conf[:outdir]
  @tdenv = {
    'FLUENT_CONF' => '',
    'TD_AGENT_LOG_FILE' => ''
  }     
  @package_name = conf[:package_name]
  @service_name = conf[:service_name]

  case @type
  when 'fluentd'
    _find_fluentd_info()
  when 'fluentbit'
    _find_fluentbit_info()
  end

  if not conf[:tdconf].empty?
    @tdconf = conf[:tdconf].split('/')[-1]
    @tdconf_path = conf[:tdconf].gsub(@tdconf,'')
  elsif
    if not @tdenv['FLUENT_CONF'].empty?
      @tdconf = @tdenv['FLUENT_CONF'].split('/')[-1]
      @tdconf_path = @tdenv['FLUENT_CONF'].gsub(@tdconf,'')
  else
    raise "The path of #{@package_name} configuration file need to be specified."  if conf[:precheck] == false
  end
  end
  if not conf[:tdlog].empty?
    @tdlog = conf[:tdlog].split('/')[-1]
    @tdlog_path = conf[:tdlog].gsub(@tdlog,'')
  elsif
    if not @tdenv['TD_AGENT_LOG_FILE'].empty?
      @tdlog =  @tdenv['TD_AGENT_LOG_FILE'].split('/')[-1]
      @tdlog_path = @tdenv['TD_AGENT_LOG_FILE'].gsub(@tdlog,'')
    elsif not @tdenv['FLUENT_PACKAGE_LOG_FILE'].empty?
      @tdlog =  @tdenv['FLUENT_PACKAGE_LOG_FILE'].split('/')[-1]
      @tdlog_path = @tdenv['FLUENT_PACKAGE_LOG_FILE'].gsub(@tdlog,'')
    else
      case @type
      when 'fluentd'
        raise "The path of #{@package_name} log file need to be specified." if conf[:precheck] == false
      when 'fluentbit'
        @logger.warn("FluentBit logs are redirected to the standard output interface ")
      end
   end
  end 
  @osenv = _find_os_info()
  @oslog_path = '/var/log/'
  @oslog = 'messages'
  @syslog = 'syslog'
  @sysctl_path = '/etc/'
  @sysctl = 'sysctl.conf'

  @logger.info("Loading the environment parameters...")
  @logger.info("    operating system = #{@osenv['Operating System']}")
  @logger.info("    kernel version = #{@osenv['Kernel']}")
  @logger.info("    #{@package_name} conf path = #{@tdconf_path}")
  @logger.info("    #{@package_name} conf file = #{@tdconf}")
  @logger.info("    #{@package_name} log path = #{@tdlog_path}")
  @logger.info("    #{@package_name} log = #{@tdlog}")
end

Instance Method Details

#_collect_tdbit_parser(conf) ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 280

def _collect_tdbit_parser(conf)
  target_dir = @workdir+@tdconf_path
  parser_conf = []
  File.readlines(conf).each do |line|
    if line.strip.start_with?('parsers_file') || line.strip.start_with?('Parsers_File')
      l = line.split()[1]
      if l.start_with?(/\//)  # /tmp/work1/b.conf
        if l.include?('*')
          Dir.glob(l).each { |ll|
            pconf = target_dir + ll.gsub(/\//,'-')
            FileUtils.cp(ll, pconf)
            parser_conf.push(pconf)
          }
        else 
          pconf = target_dir+l.gsub(/\//,'-')
          FileUtils.cp(l, pconf)
          parser_conf.push(pconf)
        end
      else
        l = l.gsub('./','') if l.include?('./')
        if l.include?('*')
          Dir.glob(@tdconf_path+f).each{ |ll|
            pconf = target_dir + ll.gsub(@tdconf_path,'').gsub(/\//,'-')
            FileUtils.cp(ll, pconf)
            parser_conf.push(pconf)
          }
        else
          pconf = target_dir+l.gsub(/\//,'-')
          FileUtils.cp(@tdconf_path+l, pconf)
          parser_conf.push(pconf)
        end
      end
    end
  end  
  return parser_conf
end

#_collect_tdbit_plugins(conf) ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 317

def _collect_tdbit_plugins(conf)
  target_dir = @workdir+@tdconf_path
  plugins_conf = []
  File.readlines(conf).each do |line|
    if line.strip.start_with?('plugins_file') || line.strip.start_with?('Plugins_File')
      l = line.split()[1]
      if l.start_with?(/\//)  # /tmp/work1/b.conf
        if l.include?('*')
          Dir.glob(l).each { |ll|
            pconf = target_dir + ll.gsub(/\//,'-')
            FileUtils.cp(ll, pconf)
            plugins_conf.push(pconf)
          }
        else 
          pconf = target_dir+l.gsub(/\//,'-')
          FileUtils.cp(l, pconf)
          plugins_conf.push(pconf)
        end
      else
        l = l.gsub('./','') if l.include?('./')
        if l.include?('*')
          Dir.glob(@tdconf_path+f).each{ |ll|
            pconf = target_dir + ll.gsub(@tdconf_path,'').gsub(/\//,'-')
            FileUtils.cp(ll, pconf)
            plugins_conf.push(pconf)
          }
        else
          pconf = target_dir+l.gsub(/\//,'-')
          FileUtils.cp(@tdconf_path+l, pconf)
          plugins_conf.push(pconf)
        end
      end
    end
  end
  return plugins_conf
end

#_collect_tdconf_include(conf) ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 234

def _collect_tdconf_include(conf)
  target_dir = @workdir+@tdconf_path
  inc_list = []
  File.readlines(conf).each do |line|
    if line.start_with?('@include')
      l = line.split()[1]
      if l.start_with?('http')
        uri = URI(l)
        inc_http = target_dir + 'http' + uri.path.gsub('/','_')
        File.open(inc_http, 'w') do |f|
          f.puts(Net::HTTP.get(uri))
        end
        inc_list.push inc_http
      else
        if l.start_with?('/')  # /tmp/work1/b.conf
          if l.include?('*')
            Dir.glob(l).each { |ll|
              inc_conf = target_dir + ll.gsub(/\//,'-')
              FileUtils.cp(ll, inc_conf)
              inc_list.push inc_conf
            }
          else 
            inc_conf = target_dir+l.gsub(/\//,'-')
            FileUtils.cp(l, inc_conf)
            inc_list.push inc_conf
          end
        else
          l = l.gsub('./','') if l.include?('./')
          if l.include?('*')
            Dir.glob(@tdconf_path+f).each{ |ll|
              inc_conf = target_dir + ll.gsub(@tdconf_path,'').gsub(/\//,'-')
              FileUtils.cp(ll, inc_conf)
              inc_list.push inc_conf
            }
          else
            inc_conf = target_dir+l.gsub(/\//,'-')
            FileUtils.cp(@tdconf_path+l, inc_conf)
            inc_list.push inc_conf
          end
        end
      end
    end
  end
  return inc_list
end

#_find_fluentbit_info ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 154

def _find_fluentbit_info()
  ### check if the td-agent-bit is run as daemon
  stdout, stderr, status = Open3.capture3('systemctl cat td-agent-bit')
  if status.success?
    if @precheck == false  # SKip if precheck is true
      File.open(@outdir+'/td-agent-bit_env.output', 'w') do |f|
        f.puts(stdout)
      end
    end
    stdout.split(/\n/).each do | line |
      if line.start_with?("ExecStart")
        cmd = line.split("=")[1]
        i =0
        cmd.split().each do | c |
          case
          when c == "-c"
            @tdenv['FLUENT_CONF'] = cmd.split()[i+1]
          when c == "-l"
            @tdenv['TD_AGENT_LOG_FILE'] = cmd.split()[i+1]
          when c.include?("--conf")
            @tdenv['FLUENT_CONF'] = c.split("=")[1]
          when c.include?("--log")
            @tdenv['TD_AGENT_LOG_FILE'] = c.split("=")[1]
          end
          i+=1
        end
      end
    end
  else
    ### check if the td-agent-bit is not run as daemon or run FluentdBit with customized script 
    stdout, stderr, status = Open3.capture3('ps aux | grep fluent-bit | grep -v ".*\(grep\|diagtool\)"')
    if status.success?
      i = 0
      stdout.split().each do | line |
        case
        when line.include?("--conf")
          @tdenv['FLUENT_CONF'] = line.split("=")[1]
        when line.include?("--log")
          @tdenv['TD_AGENT_LOG_FILE'] = line.split("=")[1]
        when line == "-c"
          @tdenv['FLUENT_CONF'] = stdout.split()[i+1]
        when line == "-l"
          @tdenv['TD_AGENT_LOG_FILE'] = stdout.split()[i+1]
        end
        i+=1
      end
    else
      @logger.warn("No FluentBit daemon or proccess running")
    end
  end
end

#_find_fluentd_info ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 110

def _find_fluentd_info()
  ### check if the td-agent is run as daemon
  stdout, stderr, status = Open3.capture3("systemctl cat #{@service_name}")
  if status.success?
    if @precheck == false  # SKip if precheck is true
      File.open(@outdir+'/td-agent_env.output', 'w') do |f|
        f.puts(stdout)
      end
    end  
    stdout.split().each do | l |
      if l.include?('Environment')
        @tdenv[l.split('=')[1]] = l.split('=')[2]
      end
    end
  else
    ### check if the td-agent is not run as daemon or run Fluentd with customized script
    stdout, stderr, status = Open3.capture3('ps aux | grep fluentd | grep -v ".*\(grep\|diagtool\)"')
    if status.success?
      line = stdout.split(/\n/)
      line.each do |l|
        cmd = l.split.drop(10)
        i = 0
        if cmd[-1] != '--under-supervisor'
          cmd.each do |c|
            case
            when c == "-c"
              @tdenv['FLUENT_CONF'] = cmd[i+1]
            when c == "-l"
              @tdenv['TD_AGENT_LOG_FILE'] = cmd[i+1]
            when c.include?("--conf")
              @tdenv['FLUENT_CONF'] = c.split("=")[1]
            when c.include?("--log")
              @tdenv['TD_AGENT_LOG_FILE'] = c.split("=")[1]
            end
            i+=1
          end
        end
      end
    else
      @logger.warn("No Fluentd daemon or proccess running") 
    end
  end
end

#_find_os_info ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 95

def _find_os_info()
  stdout, stderr, status = Open3.capture3('hostnamectl')
  os_dict = {}
  stdout.each_line { |l|
    s = l.split(":")
    os_dict[s[0].chomp.strip] = s[1].chomp.strip
  }
  if @precheck == false  # SKip if precheck is true
    File.open(@outdir+'/os_env.output', 'w') do |f|
      f.puts(stdout)
    end
  end
  return os_dict
end

#collect_cmd_output(cmd) ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 388

def collect_cmd_output(cmd)
  if system(cmd + '> /dev/null 2>&1')
    cmd_name = cmd.gsub(/\s/,'_').gsub(/\//,'-').gsub(',','_')
    output = @outdir+'/'+cmd_name+'.txt'
    stdout, stderr, status = Open3.capture3(cmd)
    if status.success?
      File.open(output, 'w') do |f|
        f.puts(stdout)
      end
    else
      @logger.warn("Command #{cmd} failed due to the following message -  #{stderr.chomp}")
    end
  else
    @logger.warn("Command #{cmd} does not exist -  skip collecting #{cmd} output")
  end
  return output
end

#collect_ntp(command) ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 377

def collect_ntp(command)
  output = @outdir+'/ntp_info.output'
  stdout_date, stderr_date, status_date = Open3.capture3("date")
  stdout_ntp, stderr_ntp, status_ntp = Open3.capture3("chronyc sources") if command == "chrony"
  stdout_ntp, stderr_ntp, status_ntp = Open3.capture3("ntpq -p") if command == "ntp"
  File.open(output, 'w') do |f|
    f.puts(stdout_date)
    f.puts(stdout_ntp)
  end
end

#collect_oslog ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 363

def collect_oslog()
  target_dir = @workdir+@oslog_path
  FileUtils.mkdir_p(target_dir)
  if File.exist? @oslog_path+@oslog
    FileUtils.cp(@oslog_path+@oslog, target_dir)
    return target_dir+@oslog
  elsif File.exist? @oslog_path+@syslog
    FileUtils.cp(@oslog_path+@syslog, target_dir)
    return target_dir+@syslog
  else
    @logger.warn("Can not find OS log file in #{@oslog} or #{@syslog}")
  end
end

#collect_tdconf ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 218

def collect_tdconf()
  target_dir = @workdir+@tdconf_path
  FileUtils.mkdir_p(target_dir)
  FileUtils.cp(@tdconf_path+@tdconf, target_dir)
  conf = @workdir+@tdconf_path+@tdconf
  conf_list = []
  conf_list.push conf
  case @type
  when 'fluentd'
    conf_list = conf_list + _collect_tdconf_include(conf)
  when 'fluentbit'
    conf_list = conf_list + _collect_tdconf_include(conf) + _collect_tdbit_parser(conf) + _collect_tdbit_plugins(conf) 
  end   
  return conf_list
end

#collect_tdgems ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 406

def collect_tdgems()
  output = @outdir+'/tdgem_list.output'
  command = if @package_name == "fluent-package"
              "fluent-gem"
            else
              "td-agent-gem"
            end
  stdout, stderr, status = Open3.capture3("#{command} list | grep fluent")
  File.open(output, 'w') do |f|
    f.puts(stdout)
  end
  return output
end

#collect_tdlog ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 354

def collect_tdlog()
  target_dir = @workdir+@tdlog_path
  FileUtils.mkdir_p(target_dir)
  Dir.glob(@tdlog_path+@tdlog+'*').each{ |f| 
    FileUtils.cp(f, target_dir)
  }
  return Dir.glob(target_dir+@tdlog+'*')
end

#compress_output ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 420

def compress_output()
  Dir.chdir(@basedir)
  tar_file = 'diagout-'+@time_format+'.tar.gz'
  stdout, stderr, status = Open3.capture3("tar cvfz #{tar_file} #{@time_format}")
  return @basedir + '/' + tar_file
end

#export_env ⇒ Object 



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# File 'lib/fluent/diagtool/collectutils.rb', line 206

def export_env()
  env = {
    :os => @osenv['Operating System'],
    :kernel => @osenv['Kernel'],
    :tdconf => @tdconf,
    :tdconf_path => @tdconf_path,
    :tdlog => @tdlog,
    :tdlog_path => @tdlog_path
  }
  return env
end