Class: Puppet::Network::HTTP::API::Master::V3::Environment

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/network/http/api/master/v3/environment.rb

Instance Method Summary collapse

Instance Method Details

#build_environment_graph(catalog) ⇒ Object 



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# File 'lib/puppet/network/http/api/master/v3/environment.rb', line 21

def build_environment_graph(catalog)
  # This reads catalog and code_id off the catalog rather than using the one
  # from the request. There shouldn't really be a case where the two differ,
  # but if they do, the one from the catalog itself is authoritative.
  env_graph = {:environment => catalog.environment, :applications => {}, :code_id => catalog.code_id}
  applications = catalog.resources.select do |res|
    type = res.resource_type
    type.is_a?(Puppet::Resource::Type) && type.application?
  end
  applications.each do |app|
    file, line = app.file, app.line
    nodes = app['nodes']

    required_components = catalog.direct_dependents_of(app).map {|comp| comp.ref}
    mapped_components = nodes.values.flatten.map {|comp| comp.ref}

    nonexistent_components = mapped_components - required_components
    if nonexistent_components.any?
      raise Puppet::ParseError.new("Application #{app} assigns nodes to non-existent components: #{nonexistent_components.join(', ')}", file, line)
    end

    missing_components = required_components - mapped_components
    if missing_components.any?
      raise Puppet::ParseError.new("Application #{app} has components without assigned nodes: #{missing_components.join(', ')}", file, line)
    end

    # Turn the 'nodes' hash into a map component ref => node name
    node_mapping = {}
    nodes.each do |node, comps|
      comps = [comps] unless comps.is_a?(Array)
      comps.each do |comp|
        raise Puppet::ParseError.new(_("Application %{app} assigns multiple nodes to component %{comp}") % { app: app, comp: comp }, file, line) if node_mapping.include?(comp.ref)
        node_mapping[comp.ref] = node.title
      end
    end

    app_components = {}
    catalog.direct_dependents_of(app).each do |comp|
      app_components[comp.ref] = {
        :produces => comp.export.map(&:ref),
        :consumes => prerequisites(comp).map(&:ref),
        :node => node_mapping[comp.ref]
      }
    end
    env_graph[:applications][app.ref] = app_components
  end

  env_graph
end

#call(request, response) ⇒ Object 



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# File 'lib/puppet/network/http/api/master/v3/environment.rb', line 5

def call(request, response)
  env_name = request.routing_path.split('/').last
  env = Puppet.lookup(:environments).get(env_name)
  code_id = request.params[:code_id]

  if env.nil?
    raise Puppet::Network::HTTP::Error::HTTPNotFoundError.new(_("%{env_name} is not a known environment") % { env_name: env_name }, Puppet::Network::HTTP::Issues::RESOURCE_NOT_FOUND)
  end

  catalog = Puppet::Parser::EnvironmentCompiler.compile(env, code_id).to_resource

  env_graph = build_environment_graph(catalog)

  response.respond_with(200, "application/json", JSON.dump(env_graph))
end