Class: OsCtl::Cli::Self

Inherits:
Command
  • Object
show all
Includes:
Assets
Defined in:
lib/osctl/cli/self.rb

Constant Summary collapse

SHUTDOWN_MARKER = 
'/run/osctl/shutdown'.freeze

Instance Method Summary collapse

Methods included from Assets

#print_assets

Methods inherited from Command

#cli_opt, #format_output, #osctld_call, #osctld_fmt, #osctld_open, #osctld_resp, run

Instance Method Details

#activate ⇒ Object 



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# File 'lib/osctl/cli/self.rb', line 75

def activate
  osctld_fmt(:self_activate, cmd_opts: { system: opts[:system] })
end

#assets ⇒ Object 



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# File 'lib/osctl/cli/self.rb', line 10

def assets
  print_assets(:self_assets)
end

#do_ping ⇒ Object (protected) 



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# File 'lib/osctl/cli/self.rb', line 141

def do_ping
  return true if osctld_call(:self_ping) == 'pong'

  raise GLI::CustomExit.new('unexpected response', 3)
rescue Errno::ENOENT
  raise GLI::CustomExit.new('unable to connect', 2)
rescue OsCtl::Client::Error
  raise GLI::CustomExit.new('invalid response', 3)
end

#healthcheck ⇒ Object 



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# File 'lib/osctl/cli/self.rb', line 14

def healthcheck
  entities = osctld_call(
    :self_healthcheck,
    all: opts[:all],
    pools: opts[:all] || args.empty? ? nil : args
  )

  if gopts[:json]
    puts entities.to_json
    return
  end

  if entities.empty?
    puts 'No errors detected.'
    return
  end

  entities.each do |ent|
    puts "#{ent[:type]} #{ent[:pool] || '-'} #{ent[:id] || '-'}"

    ent[:assets].each do |asset|
      puts "\t#{asset[:type]} #{asset[:path]}: #{asset[:errors].join('; ')}"
    end
  end
end

#ping ⇒ Object 



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# File 'lib/osctl/cli/self.rb', line 40

def ping
  if args[0]
    secs = args[0].to_i

    (0..Float::INFINITY).each do |i|
      begin
        break if do_ping
      rescue GLI::CustomExit
        raise if secs > 0 && i >= secs
      end

      sleep(1)
    end

  elsif do_ping
    puts 'pong'
  end
end

#script ⇒ Object 



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# File 'lib/osctl/cli/self.rb', line 59

def script
  require_args!('file', strict: false)

  ARGV.shift # script
  ARGV.shift # <file>

  begin
    script_path = File.realpath(args[0])
  rescue Errno::ENOENT
    warn "Script not found at #{script_path}"
    exit(false)
  end

  load(script_path)
end

#shutdown ⇒ Object 



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# File 'lib/osctl/cli/self.rb', line 79

def shutdown
  if opts[:abort]
    osctld_fmt(:self_abort_shutdown)
    return
  end

  unless opts[:force]
    $stdout.write(
      'Do you really wish to stop all containers and export all pools? ' \
      '[y/N]: '
    )

    unless %w[y yes].include?($stdin.readline.strip.downcase)
      puts 'Aborting'
      return
    end
  end

  # Ensure osctld will shutdown even if it crashes/restarts
  File.new(SHUTDOWN_MARKER, 'w', 0o000).close

  begin
    osctld_fmt(:self_shutdown, cmd_opts: {
      wall: opts[:wall],
      message: opts[:message]
    })
    return
  rescue OsCtl::Client::Error => e
    warn "Lost connection to osctld: #{e.message}"
  rescue Errno::ENOENT
    warn 'Unable to connect to osctld: socket not found'
  end

  $stdout.write('Waiting for osctld to prepare for shutdown...')
  $stdout.flush

  (0..3600).each do |i|
    begin
      st = File.stat(SHUTDOWN_MARKER)
      if st.mode & 0o100 == 0o100
        warn ' ok'
        return # rubocop:disable Lint/NonLocalExitFromIterator
      end
    rescue Errno::ENOENT
      warn 'Shutdown mark does not exist, osctld will not shutdown'
      return # rubocop:disable Lint/NonLocalExitFromIterator
    end

    if i % 5 == 0
      $stdout.write('.')
      $stdout.flush
    end

    sleep(1)
  end

  warn
  warn 'Waited for an hour, going to shutdown'
end