Class: DTK::Client::DtkPuppet

Inherits:
Object
  • Object
show all
Defined in:
lib/util/dtk_puppet.rb

Overview

Class is used as puppet wrapper, at the moment it will use console comamnds, later to be replaced with direct usage of puppet code, or re-implentation of their direct calls

Constant Summary collapse

MODULE_PATH = 
OsUtil.component_clone_location()

Class Method Summary collapse

Class Method Details

.install_module(module_name) ⇒ Object

installs puppet module from puppet forge via puppet module method will print out progress or errrors

Returns: Name of directory where module is saved

Raises:



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# File 'lib/util/dtk_puppet.rb', line 34

def self.install_module(module_name)
  output = nil

  OsUtil.suspend_output do
    output = `puppet module install #{module_name} --modulepath #{MODULE_PATH} --force --render-as json`
  end

  # extract json from output, regex will match json in string
  matched = output.match(/\{.+\}/)

  raise DTK::Client::DtkError, "Puppet module '#{module_name}' not found." unless matched

  # parse matched json
  result = JSON.parse(matched[0])

  if result['result'] == 'failure'
    # we remove puppet specific messages
    filtered = result['error']['multiline'].gsub(/^.*puppet module.*$\n?/,'')
    # we strip and join multiline message
    filtered = filtered.split(/\n/).map(&:strip).join(', ')
    raise DTK::Client::DtkError, filtered
  end

  # puppet uses last part of the module name, as dir for location
  dir_name = module_name.split('-').last
  puts "Successfully installed '#{module_name}' from puppet forge, location: '#{MODULE_PATH}/#{dir_name}'"
  return dir_name
end