Class: ConfCtl::Cli::Cluster

Inherits:
Command
  • Object
show all
Defined in:
lib/confctl/cli/cluster.rb

Instance Attribute Summary

Attributes inherited from Command

#args, #gopts, #opts

Instance Method Summary collapse

Methods inherited from Command

#ask_action, #ask_confirmation, #ask_confirmation!, #initialize, #require_args!, run, #run_method, #use_color?, #use_pager?

Constructor Details

This class inherits a constructor from ConfCtl::Cli::Command

Instance Method Details

#build ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 32

def build
  machines = select_machines(args[0]).managed

  raise 'No machines to build' if machines.empty?

  ask_confirmation! do
    puts 'The following machines will be built:'
    list_machines(machines)
  end

  do_build(machines)
end

#changelog ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 216

def changelog
  compare_swpins do |io, _host, status, sw_name, spec|
    s = spec.string_changelog_info(
      opts[:downgrade] ? :downgrade : :upgrade,
      status.swpins_info[sw_name],
      color: use_color?,
      verbose: opts[:verbose],
      patch: opts[:patch]
    )
  rescue ConfCtl::Error => e
    io.puts e.message
  else
    io.puts(s || 'no changes')
  end
end

#cssh ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 297

def cssh
  machines = select_machines_with_managed(args[0])
  raise 'No machines to open cssh to' if machines.empty?

  ask_confirmation! do
    puts 'Open cssh to the following machines:'
    list_machines(machines)
  end

  nix = ConfCtl::Nix.new

  cssh = [
    'cssh',
    '-l', 'root'
  ]

  machines.each_value do |machine|
    cssh << machine.target_host
  end

  nix.run_command_in_shell(
    packages: ['perlPackages.AppClusterSSH'],
    command: cssh.join(' ')
  )
end

#deploy ⇒ Object

Raises:

  • (GLI::BadCommandLine) 


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# File 'lib/confctl/cli/cluster.rb', line 45

def deploy
  machines = select_machines(args[0]).managed
  action = args[1] || 'switch'

  raise GLI::BadCommandLine, "invalid action '#{action}'" unless %w[boot switch test dry-activate].include?(action)

  if opts[:reboot]
    raise GLI::BadCommandLine, '--reboot can be used only with switch-action boot' if action != 'boot'

    parse_wait_online
  end

  raise 'No machines to deploy' if machines.empty?

  ask_confirmation! do
    puts 'The following machines will be deployed:'
    list_machines(machines)
    puts
    puts "Generation: #{opts[:generation] || 'new build'}"
    puts "Target action: #{action}#{opts[:reboot] ? ' + reboot' : ''}"
  end

  ConfCtl::Hook.call(:cluster_deploy, kwargs: {
    machines:,
    generation: opts[:generation],
    action: opts[:action],
    opts:
  })

  host_generations =
    if opts[:generation]
      find_generations(machines, opts[:generation])
    else
      do_build(machines)
    end

  nix = ConfCtl::Nix.new(show_trace: opts['show-trace'])

  if opts['one-by-one']
    deploy_one_by_one(machines, host_generations, nix, action)
  else
    deploy_in_bulk(machines, host_generations, nix, action)
  end
end

#diff ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 232

def diff
  compare_swpins do |io, _host, status, sw_name, spec|
    s = spec.string_diff_info(
      opts[:downgrade] ? :downgrade : :upgrade,
      status.swpins_info[sw_name],
      color: use_color?
    )
  rescue ConfCtl::Error => e
    io.puts e.message
  else
    io.puts(s || 'no changes')
  end
end

#health_check ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 90

def health_check
  machines = select_machines(args[0]).managed.select do |_host, machine|
    machine.health_checks.any?
  end
  raise 'No machines to check or no health checks configured' if machines.empty?

  run_checks = machines.health_checks

  ask_confirmation! do
    puts 'Health checks will be run on the following machines:'

    list_machines(machines, prepend_cols: %w[checks])
    puts
    puts "#{run_checks.length} checks in total"
    puts
  end

  return unless run_health_checks(machines, run_checks).any?

  raise 'Health checks failed'
end

#list ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 13

def list
  if opts[:list]
    prefix = 'cluster.<name>.'
    nix = ConfCtl::Nix.new

    puts 'name'

    nix.module_options.each do |opt|
      next unless opt['name'].start_with?(prefix)

      puts opt['name'][prefix.length..]
    end

    return
  end

  list_machines(select_machines_with_managed(args[0]))
end

#ssh ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 278

def ssh
  machines = select_machines_with_managed(args[0])
  raise 'No machines to ssh to' if machines.empty?

  if opts['input-string'] && opts['input-file']
    raise GLI::BadCommandLine, 'use one of --input-string or --input-file'
  end

  if args.length == 1
    raise GLI::BadCommandLine, 'missing command' unless machines.length == 1

    run_ssh_interactive(machines)
    return

  end

  run_ssh_command(machines, args[1..])
end

#status ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 112

def status
  machines = select_machines(args[0]).managed
  raise 'No machines to check' if machines.empty?

  ask_confirmation! do
    if opts[:generation]
      puts 'The following machines will be checked:'
    else
      puts 'The following machines will be built and then checked:'
    end

    list_machines(machines)
    puts
    puts "Generation: #{opts[:generation] || 'new build'}"
  end

  statuses = machines.transform_values do |machine|
    ConfCtl::MachineStatus.new(machine)
  end

  # Evaluate toplevels
  if opts[:generation] == 'none'
    host_generations = nil
  elsif opts[:generation]
    host_generations = find_generations(machines, opts[:generation])

    # Ignore statuses when no generation was found
    statuses.delete_if do |host, _st|
      !host_generations.has_key?(host)
    end
  else
    host_generations = do_build(machines)
    puts
  end

  # Assign configured toplevel and swpins
  if host_generations
    host_generations.each do |host, gen|
      statuses[host].target_toplevel = gen.toplevel
      statuses[host].target_swpin_specs = gen.swpin_specs
    end
  else
    # We're not comparing a system generation, only configured swpins
    ConfCtl::Swpins::ClusterNameList.new(machines:).each do |cn|
      cn.parse

      statuses[cn.name].target_swpin_specs = cn.specs
    end
  end

  # Check runtime status
  tw = ConfCtl::ParallelExecutor.new(machines.length)

  statuses.each_value do |st|
    tw.add do
      st.query(toplevel: opts[:generation] != 'none')
    end
  end

  tw.run

  # Collect all swpins
  swpins = []

  statuses.each_value do |st|
    st.target_swpin_specs.each_key do |name|
      swpins << name unless swpins.include?(name)
    end

    st.evaluate
  end

  # Render results
  cols = %w[host online uptime status generations] + swpins
  rows = []

  statuses.each do |host, st|
    build_generations = ConfCtl::Generation::BuildList.new(host)

    row = {
      'host' => host,
      'online' => st.online? && Rainbow('yes').green,
      'uptime' => st.uptime && format_duration(st.uptime),
      'status' => st.status ? Rainbow('ok').green : Rainbow('outdated').red,
      'generations' => "#{build_generations.count}:#{st.generations && st.generations.count}"
    }

    swpins.each do |name|
      swpin_state = st.swpins_state[name]

      row[name] =
        if swpin_state
          Rainbow(swpin_state.current_version).color(
            swpin_state.uptodate? ? :green : :red
          )
        end
    end

    rows << row
  end

  OutputFormatter.print(rows, cols, layout: :columns, color: use_color?)
end

#test_connection ⇒ Object 



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# File 'lib/confctl/cli/cluster.rb', line 246

def test_connection
  machines = select_machines_with_managed(args[0])
  raise 'No machines to test' if machines.empty?

  ask_confirmation! do
    puts 'Test SSH connection to the following machines:'
    list_machines(machines)
  end

  succeeded = []
  failed = []

  machines.each do |host, machine|
    mc = ConfCtl::MachineControl.new(machine)

    begin
      mc.test_connection
      succeeded << host
    rescue TTY::Command::ExitError => e
      puts "Unable to connect to #{host}: #{e.message}"
      puts
      failed << host
    end
  end

  puts
  puts "Result: #{succeeded.length} successful, #{failed.length} failed"
  puts
  puts 'Failed machines:'
  failed.each { |host| puts "  #{host}" }
end