Class: Superhosting::Controller::Container

Inherits:
Base
  • Object
show all
Defined in:
lib/superhosting/controller/container.rb,
lib/superhosting/controller/container/admin.rb

Defined Under Namespace

Classes: Admin

Constant Summary collapse

CONTAINER_NAME_FORMAT = 
/[a-zA-Z0-9][a-zA-Z0-9_.-]+/

Instance Method Summary collapse

Methods inherited from Base

#command, #command!, #debug, #initialize

Methods included from Helpers

#create_conf, #erb, #instance_variables_to_hash, #remove_line_from_file, #write_if_not_exist

Constructor Details

This class inherits a constructor from Superhosting::Base

Instance Method Details

#add(name:, mail: 'model', admin_mail: nil, model: nil) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 14

def add(name:, mail: 'model', admin_mail: nil, model: nil)
  return { error: :input_error, message: "Invalid container name '#{name}' - only '#{CONTAINER_NAME_FORMAT}' are allowed" } if name !~ CONTAINER_NAME_FORMAT
  return { error: :logical_error, message: 'Container already running.' } if @docker_api.container_info(name)
  return { error: :input_error, message: 'No model given.' } unless (model_ = model || @config.default_model(default: nil))

  # config
  config_path_ = "#{@config_path}/containers/#{name}"
  config_path_mapper = PathMapper.new(config_path_)
  FileUtils.mkdir_p config_path_

  # model
  create_conf("#{config_path_}/model", model) unless model.nil?
  model_mapper = @config.models.f(:"#{model_}")

  # image
  return { error: :input_error, message: "No docker_image specified in model '#{model_}.'" } unless (image = model_mapper.docker_image(default: nil))

  # mail
  unless mail != 'no'
    if mail == 'yes'
      create_conf("#{config_path_}/mail", mail)
      admin_mail_ = admin_mail
      create_conf("#{config_path_}/admin_mail", admin_mail_) unless admin_mail_.nil?
      return { error: :input_error, message: 'Admin mail required.' } if admin_mail_.nil?
    elsif mail == 'model'
      if model_mapper.default_mail == 'yes'
        admin_mail_ = admin_mail || model_mapper.default_admin_mail(default: nil)
        return { error: :input_error, message: 'Admin mail required.' } if admin_mail_.nil?
      end
    end
  end

  # lib
  lib_path_ = "#{@lib_path}/containers/#{name}"
  lib_path_mapper = PathMapper.new(lib_path_)
  FileUtils.rm_rf "#{lib_path_}/configs"
  FileUtils.mkdir_p "#{lib_path_}/configs"
  FileUtils.mkdir_p "#{lib_path_}/web"

  # user/group
  self.command("groupadd #{name}")
  self.command("useradd #{name} -g #{name} -d #{lib_path_}/web/")

  user = Etc.getpwnam(name)

  write_if_not_exist("#{lib_path_}/configs/etc-group", "#{name}:x:#{user.gid}:")
  write_if_not_exist("#{lib_path_}/configs/etc-passwd", "#{name}:x:#{user.uid}:#{user.gid}::/web/:/usr/sbin/nologin")

  # system users
  users = [config_path_mapper.system_users, model_mapper.system_users].find {|f| f.is_a? PathMapper::FileNode }
  users.lines.each {|u| self.command("useradd #{name}_#{u.strip} -g #{name} -d #{lib_path_}/web/") } unless users.nil?

  # services
  cserv = @config.containers.f(name).services._grep(/.*\.erb/).map {|n| [n._name, n]}.to_h
  mserv = model_mapper.services._grep(/.*\.erb/).map {|n| [n._name, n]}.to_h
  services = mserv.merge!(cserv)

  supervisor_path = "#{lib_path_}/supervisor"
  FileUtils.mkdir_p supervisor_path
  services.each do |_name, node|
    text = erb(node, model: model_, container: config_path_mapper)
    create_conf("#{supervisor_path}/#{_name[/.*[^\.erb]/]}", text)
  end

  # container
  unless model_mapper.f('container.rb').nil?
    registry_path = lib_path_mapper.registry.f('container')._path
    ex = ScriptExecutor::Container.new(
        container: config_path_mapper, container_name: name, container_lib: lib_path_mapper, registry_path: registry_path,
        model: model_mapper, config: @config, lib: @lib
    )
    ex.execute(model_mapper.f('container.rb'))
    ex.commands.each {|c| self.command c }
  end

  # docker
  write_if_not_exist('/etc/security/docker.conf', "@#{name} #{name}")

  # run container
  self.command "docker run --detach --name #{name} -v #{lib_path_}/configs/:/.configs:ro
                -v #{lib_path_}/web:/web #{image} /usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf".split

  { error: :error, message: 'Unable to run docker container.' } unless @docker_api.container_info(name)
end

#admin(name:, logger: @logger) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 169

def admin(name:, logger: @logger)
  Admin.new(name: name, logger: logger)
end

#change(name:, mail: 'model', admin_mail: nil, model: nil) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 149

def change(name:, mail: 'model', admin_mail: nil, model: nil)

end

#delete(name:) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 99

def delete(name:)
  config_path_mapper = @config.containers.f(name)
  lib_path_mapper = PathMapper.new("#{@lib_path}/containers/#{name}")
  model = config_path_mapper.model(default: @config.default_model)
  model_mapper = @config.models.f(:"#{model}")

  sites = config_path_mapper.sites._grep_dirs.map { |n| n._name }
  sites.each do |s|
    begin
      Site.new(instance_variables_to_hash(self)).delete(s)
    rescue NetStatus::Exception => e
      raise Error::Controller, e.net_status
    end
  end

  unless (container = lib_path_mapper.registry.f('container')).nil?
    FileUtils.rm container.lines
    FileUtils.rm container._path
  end

  unless model_mapper.f('container.rb').nil?
    registry_path = lib_path_mapper.registry.f('container')._path
    ex = ScriptExecutor::Container.new(
        container: config_path_mapper, container_name: name, container_lib: lib_path_mapper,
        registry_path: registry_path, on_reconfig_only: true,
        model: model_mapper, config: @config, lib: @lib
    )
    ex.execute(model_mapper.f('container.rb'))
    ex.commands.each {|c| self.command c }
  end

  @docker_api.container_kill(name)
  @docker_api.container_rm(name)
  remove_line_from_file('/etc/security/docker.conf', "@#{name} #{name}")

  begin
    gid = Etc.getgrnam(name).gid
    Etc.passwd do |user|
      self.command("userdel #{user.name}") if user.gid == gid
    end
    self.command("groupdel #{name}")
  rescue ArgumentError => e
    # repeated command execution: group name already does not exist
  end

  FileUtils.rm_rf "#{@lib_path}/containers/#{name}/configs"

  {}
end

#list ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 6

def list
  docker = @docker_api.container_list.map {|c| c['Names'].first.slice(1..-1) }.to_set
  sx = @config.containers._grep_dirs.map {|n| n._name }.to_set
  containers = (docker & sx)

  { data: containers.to_a }
end

#reconfig(name:) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 157

def reconfig(name:)

end

#restore(name:, from:, mail: 'model', admin_mail: nil, model: nil) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 165

def restore(name:, from:, mail: 'model', admin_mail: nil, model: nil)

end

#save(name:, to:) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 161

def save(name:, to:)

end

#update(name:) ⇒ Object 



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# File 'lib/superhosting/controller/container.rb', line 153

def update(name:)

end