Class: HybridPlatformsConductor::HpcPlugins::Cmdb::HostKeys

Inherits:
Cmdb
  • Object
show all
Includes:
ParallelThreads
Defined in:
lib/hybrid_platforms_conductor/hpc_plugins/cmdb/host_keys.rb

Overview

Get the needed host keys to nodes

Constant Summary

Constants included from LoggerHelpers

LoggerHelpers::LEVELS_MODIFIERS, LoggerHelpers::LEVELS_TO_STDERR

Instance Method Summary collapse

Methods included from ParallelThreads

#for_each_element_in

Methods inherited from Cmdb

#initialize

Methods inherited from Plugin

extend_config_dsl_with, #initialize, valid?

Methods included from LoggerHelpers

#err, #init_loggers, #log_component=, #log_debug?, #log_level=, #out, #section, #set_loggers_format, #stderr_device, #stderr_device=, #stderr_displayed?, #stdout_device, #stdout_device=, #stdout_displayed?, #stdouts_to_s, #with_progress_bar

Constructor Details

This class inherits a constructor from HybridPlatformsConductor::Cmdb

Instance Method Details

#get_host_keys(nodes, metadata) ⇒ Object

Get a specific property for a given set of nodes.

API

  • @platforms_handler can be used.

API

  • @nodes_handler can be used.

API

  • @cmd_runner can be used.

Parameters

  • nodes (Array<String>): The nodes to lookup the property for.

  • metadata (Hash<String, Hash<Symbol,Object> >): Existing metadata for each node. Dependent properties should be present here.

Result

  • Hash<String, Object>: The corresponding property, per required node.

    Nodes for which the property can't be fetched can be ommitted.



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# File 'lib/hybrid_platforms_conductor/hpc_plugins/cmdb/host_keys.rb', line 42

def get_host_keys(nodes, metadata)
  updated_metadata = {}
  # Get the list of nodes, per hostname (just in case several nodes share the same hostname)
  # Hash<String, Array<String> >
  hostnames = Hash.new { |hash, key| hash[key] = [] }
  metadata.each do |node, node_metadata|
    if node_metadata[:host_ip]
      hostnames[node_metadata[:host_ip]] << node
    elsif node_metadata[:hostname]
      hostnames[node_metadata[:hostname]] << node
    end
  end
  unless hostnames.empty?
    host_keys_for(*hostnames.keys).each do |hostname, ip|
      hostnames[hostname].each do |node|
        updated_metadata[node] = ip
      end
    end
  end
  updated_metadata
end

#property_dependencies ⇒ Object

Return possible dependencies between properties. A property can need another property to be set before. For example an IP would need first to have the hostname to be known in order to be looked up.

API

  • This method is optional

Result

  • Hash<Symbol, Symbol or Array<Symbol> >: The list of necessary properties (or single one) that should be set, per property name (:others can also be used here)



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# File 'lib/hybrid_platforms_conductor/hpc_plugins/cmdb/host_keys.rb', line 25

def property_dependencies
  {
    host_keys: %i[hostname host_ip]
  }
end