Class: Kuby::Tasks

Inherits:
Object
  • Object
show all
Defined in:
lib/kuby/tasks.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(environment) ⇒ Tasks

Returns a new instance of Tasks.



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# File 'lib/kuby/tasks.rb', line 9

def initialize(environment)
  @environment = environment
end

Instance Attribute Details

#environment ⇒ Object (readonly)

Returns the value of attribute environment.



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# File 'lib/kuby/tasks.rb', line 7

def environment
  @environment
end

Instance Method Details

#build(build_args = {}, docker_args = [], only: [], ignore_missing_args: false, context: nil, cache_from_latest: true) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 83

def build(build_args = {}, docker_args = [], only: [], ignore_missing_args: false, context: nil, cache_from_latest: true)
  check_platform(docker_args)

  if master_key = rails_app.master_key
    build_args['RAILS_MASTER_KEY'] = master_key
  end

  check_build_args(build_args) unless ignore_missing_args

  kubernetes.docker_images.each do |image|
    next unless only.empty? || only.include?(image.identifier)
    return unless (image)

    build_kwargs = {}

    if cache_from_latest
      latest_image_url = "#{image.image_url}:#{Kuby::Docker::LATEST_TAG}"
      Kuby.logger.info("Pulling image #{latest_image_url}")

      begin
        image.pull(Kuby::Docker::LATEST_TAG)
        build_kwargs[:cache_from] = latest_image_url
      rescue Kuby::Docker::PullError
      end
    end

    image = image.new_version
    Kuby.logger.info("Building image #{image.image_url} with tags #{image.tags.join(', ')}")
    image.build(build_args, docker_args, context: context, **build_kwargs)
  end
end

#deploy(tag = nil) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 139

def deploy(tag = nil)
  environment.kubernetes.deploy(tag)
end

#kubectl(*cmd) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 179

def kubectl(*cmd)
  kubernetes_cli.run_cmd(cmd)
end

#list_plugins(all: false) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 53

def list_plugins(all: false)
  Kuby.plugins.each do |name, _|
    if environment.kubernetes.plugins.include?(name)
      Kuby.logger.info("* #{name}")
    elsif all
      Kuby.logger.info("  #{name}")
    end
  end
end

#list_rake_tasks ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 73

def list_rake_tasks
  Kuby.load_rake_tasks!

  rows = Rake::Task.tasks.map do |task|
    [task.name, task.full_comment || '']
  end

  puts Kuby::Utils::Table.new(%w(NAME DESCRIPTION), rows).to_s
end

#print_dockerfiles(only: []) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 13

def print_dockerfiles(only: [])
  kubernetes.docker_images.each do |image|
    next unless only.empty? || only.include?(image.identifier)

    image = image.current_version
    identifier = image.identifier ? " ##{image.identifier}" : ""
    Kuby.logger.info("Dockerfile for#{identifier} image #{image.image_url} with tags #{image.tags.join(', ')}")
    theme = Rouge::Themes::Base16::Solarized.new
    formatter = Rouge::Formatters::Terminal256.new(theme)
    lexer = Rouge::Lexers::Docker.new
    tokens = lexer.lex(image.dockerfile.to_s)
    puts formatter.format(tokens)
  end
end

#print_images ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 167

def print_images
  rows = kubernetes.docker_images.flat_map do |image|
    image = image.current_version

    image.tags.map do |tag|
      [image.identifier, "#{image.image_url}:#{tag}"]
    end
  end

  puts Kuby::Utils::Table.new(%w(IDENTIFIER URL), rows).to_s
end

#print_kubeconfig ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 161

def print_kubeconfig
  path = kubernetes.provider.kubeconfig_path
  Kuby.logger.info("Printing contents of #{path}")
  puts File.read(path)
end

#print_resources(kind = nil, name_pattern = nil) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 147

def print_resources(kind = nil, name_pattern = nil)
  kubernetes.before_deploy

  name_rxp = Regexp.new(name_pattern) if name_pattern

  kubernetes.resources.each do |res|
    next if kind && res.kind_sym.to_s != kind

    next if name_rxp && !name_rxp.match?(res.metadata.name)

    puts res.to_resource.serialize.to_yaml
  end
end

#push(only: []) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 115

def push(only: [])
  kubernetes.docker_images.each do |image|
    next unless only.empty? || only.include?(image.identifier)

    image = image.current_version
    Kuby.logger.info("Pushing image #{image.image_url} with tags #{image.tags.join(', ')}")
    push_image(image)
  end
end

#push_image(image) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 125

def push_image(image)
  return unless (image)

  begin
    image.tags.each { |tag| image.push(tag) }
  rescue Kuby::Docker::MissingTagError => e
    msg = "#{e.message} Run kuby build to build the "\
      'Docker images before running this task.'

    Kuby.logger.fatal(msg)
    Kuby.logger.fatal(e.message)
  end
end

#remote_console ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 205

def remote_console
  remote_exec('bundle exec rails console')
end

#remote_dbconsole ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 209

def remote_dbconsole
  remote_exec('bundle exec rails dbconsole')
end

#remote_exec(cmd) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 191

def remote_exec(cmd)
  first_pod = get_first_pod
  kubernetes_cli.exec_cmd(cmd, namespace, first_pod.dig('metadata', 'name'))
end

#remote_logs ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 183

def remote_logs
  kubernetes_cli.logtail(namespace, match_labels.serialize)
end

#remote_restart ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 213

def remote_restart
  deployment = rails_app.deployment.metadata.name
  kubernetes_cli.restart_deployment(namespace, deployment)
end

#remote_shell ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 201

def remote_shell
  remote_exec(docker.distro_spec.shell_exe)
end

#remote_status ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 187

def remote_status
  kubernetes_cli.run_cmd(['-n', namespace, 'get', 'pods'])
end

#remote_system(cmd) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 196

def remote_system(cmd)
  first_pod = get_first_pod
  kubernetes_cli.system_cmd(cmd, namespace, first_pod.dig('metadata', 'name'))
end

#remove_plugin(name) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 32

def remove_plugin(name)
  plugin = environment.kubernetes.plugin(name)

  # Allow running uninstallation procedures for plugins that are no longer part
  # of the environment. This is especially useful for plugins Kuby adds by default
  # in one version and removes in another, like KubeDB.
  plugin ||= if plugin_class = Kuby.plugins.find(name.to_sym)
    plugin_class.new(environment)
  end

  unless plugin
    Kuby.logger.fatal(
      "No plugin found named '#{name}'. Run `kuby plugin list -a` to show a list of all available plugins."
    )

    exit 1
  end

  plugin.remove
end

#rollback ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 143

def rollback
  environment.kubernetes.rollback
end

#run_rake_tasks(tasks) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 63

def run_rake_tasks(tasks)
  if tasks.empty?
    Kuby.logger.fatal('Please specify at least one task to run.')
    exit 1
  end

  Kuby.load_rake_tasks!
  Rake::Task[tasks.join(' ')].invoke
end

#setup(only: []) ⇒ Object 



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# File 'lib/kuby/tasks.rb', line 28

def setup(only: [])
  environment.kubernetes.setup(only: only.map(&:to_sym))
end