Module: Discover::Object

Extended by:
Util::Logging
Defined in:
lib/discover/object.rb

Defined Under Namespace

Classes: Controller, End_point_slice, Generic_object, Job, Namespace, Node, Pod, Replica_set, Service

Constant Summary

Constants included from Util::Logging

Util::Logging::SEV_LABEL, Util::Logging::TRACE

Class Method Summary collapse

Methods included from Util::Logging

logger, logger=

Class Method Details

.get_cron_jobs ⇒ Object 



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# File 'lib/discover/object.rb', line 40

def get_cron_jobs
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::CRON_JOBS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      cron_job = get_generic_object_details(item, resource_name)
      processed_data << cron_job unless cron_job.nil?
    end
  rescue StandardError => e
    logger.error("Unable to parse '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_daemon_sets ⇒ Object 



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# File 'lib/discover/object.rb', line 56

def get_daemon_sets
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::DAEMON_SETS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      daemon_set = get_generic_object_details(item, resource_name)
      processed_data << daemon_set unless daemon_set.nil?
    end
  rescue StandardError => e
    logger.error("Unable to parse '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_deployments ⇒ Object 



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# File 'lib/discover/object.rb', line 72

def get_deployments
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::DEPLOYMENTS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      deployment = get_generic_object_details(item, resource_name)
      processed_data << deployment unless deployment.nil?
    end
  rescue StandardError => e
    logger.error("Unable to parse '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_endpoint_slices ⇒ Object 



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# File 'lib/discover/object.rb', line 88

def get_endpoint_slices
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::ENDPOINT_SLICES.to_s
  response = Util::KubectlOps.get_objects(resource_name)

  begin
    response[:parsed_symbolized][:items].each do |item|
      generic_object = get_generic_object_details(item, resource_name)
      next if generic_object.nil?

      endpoints = item[:endpoints]
      endpoint_arr = []
      if !endpoints.nil? && !endpoints.empty?
        endpoints.each do |endpoint_item|
          next if endpoint_item.nil?

          endpoint_arr.push(endpoint_item.to_h)
        end
      end

      ports = item[:ports]
      port_arr = []
      if !ports.nil? && !ports.empty?
        ports.each do |port_item|
          next if port_item.nil?

          port_arr.push(port_item.to_h)
        end
      end
      processed_data.push(End_point_slice.new(generic_object[:name], generic_object[:namespace], generic_object[:uid], endpoint_arr, port_arr))
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_events ⇒ Object 



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# File 'lib/discover/object.rb', line 296

def get_events
  # Note - only collects warning logs for processed/discovery data
  #      - collects all events (incl. warning) in raw paylaod
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::EVENTS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |event|
      # filter out empty and warning events
      next if event.nil? || event.empty? || event[:type] != 'Warning'

      processed_data.push(event)
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_generic_object_details(item, object_type) ⇒ Object 



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# File 'lib/discover/object.rb', line 29

def get_generic_object_details(item, object_type)
  if item.nil? || item[:metadata].nil?
    logger.debug("Null or empty object detected, skipping the processing for object '#{object_type}'.")
    return nil
  end
  name = item[:metadata][:name]
  namespace = item[:metadata][:namespace]
  uid = item[:metadata][:uid]
  Generic_object.new(name, namespace, uid)
end

.get_jobs ⇒ Object 



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# File 'lib/discover/object.rb', line 126

def get_jobs
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::JOBS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      generic_object = get_generic_object_details(item, resource_name)
      next if generic_object.nil?

      controller = nil
      if !item[:metadata][:ownerReferences].nil? && !item[:metadata][:ownerReferences].empty?
        item[:metadata][:ownerReferences].each do |owner_reference|
          next if owner_reference.nil?

          if owner_reference[:controller]
            controller = Controller.new(owner_reference[:kind], owner_reference[:name], owner_reference[:uid])
          end
        end
      end
      processed_data.push(Job.new(generic_object[:name], generic_object[:namespace], generic_object[:uid], controller.to_h))
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_namespaces ⇒ Object 



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# File 'lib/discover/object.rb', line 316

def get_namespaces
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::NAMESPACES.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      next if item.nil? || item.empty?

      processed_data.push(Namespace.new(item[:metadata][:name], item[:metadata][:uid]))
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_nodes ⇒ Object 



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# File 'lib/discover/object.rb', line 154

def get_nodes
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::NODES.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      next if item.nil? || item.empty?

      name = item[:metadata][:name]

      displayName = nil
      if !item[:metadata][:labels].nil? || !item[:metadata][:labels].empty?
        displayName = item[:metadata][:labels][:displayName].nil? ? nil : item[:metadata][:labels][:displayName]
      end

      uid = item[:metadata][:uid]
      addresses = item[:status][:addresses]
      internalIP = nil
      externalIP = nil
      addresses.each do |address|
        next if address.nil?

        if address.to_h[:type].eql?('InternalIP')
          internalIP = address.to_hash[:address]
        elsif address.to_h[:type].eql?('ExternalIP')
          externalIP = address.to_hash[:address]
        end
      end
      processed_data.push(Node.new(name, displayName, uid, internalIP, externalIP))
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_persistent_volume_claims ⇒ Object 



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# File 'lib/discover/object.rb', line 340

def get_persistent_volume_claims
  processed_data = nil
  resource_name = Enum::KubernetesObjectsEnum::PERSISTENT_VOLUME_CLAIMS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  { processed: processed_data, raw: response[:raw] }
end

.get_persistent_volumes ⇒ Object 



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# File 'lib/discover/object.rb', line 333

def get_persistent_volumes
  processed_data = nil
  resource_name = Enum::KubernetesObjectsEnum::PERSISTENT_VOLUMES.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  { processed: processed_data, raw: response[:raw] }
end

.get_pods ⇒ Object 



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# File 'lib/discover/object.rb', line 191

def get_pods
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::PODS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      generic_object = get_generic_object_details(item, resource_name)
      next if generic_object.nil?

      podIP = item[:status][:podIP]
      hostIP = item[:status][:hostIP]
      nodeIP = item[:status][:nodeIP]
      controller = nil
      if !item[:metadata][:ownerReferences].nil? && !item[:metadata][:ownerReferences].empty?
        item[:metadata][:ownerReferences].each do |owner_reference|
          next if owner_reference.nil?

          if owner_reference[:controller]
            controller = Controller.new(owner_reference[:kind], owner_reference[:name], owner_reference[:uid])
          end
        end
      end
      processed_data.push(Pod.new(generic_object[:name], generic_object[:namespace], generic_object[:uid], podIP, hostIP, nodeIP, controller.to_h))
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_replica_sets ⇒ Object 



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# File 'lib/discover/object.rb', line 222

def get_replica_sets
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::REPLICA_SETS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      generic_object = get_generic_object_details(item, resource_name)
      next if generic_object.nil?

      controller = nil
      if !item[:metadata][:ownerReferences].nil? && !item[:metadata][:ownerReferences].empty?
        item[:metadata][:ownerReferences].each do |owner_reference|
          next if owner_reference.nil?

          if owner_reference[:controller]
            controller = Controller.new(owner_reference[:kind], owner_reference[:name], owner_reference[:uid])
          end
        end
      end
      processed_data.push(Replica_set.new(generic_object[:name], generic_object[:namespace], generic_object[:uid], controller.to_h))
    end
  rescue StandardError => e
    logger.error "Unable to fetch '#{resource_name}'"
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_services ⇒ Object 



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# File 'lib/discover/object.rb', line 250

def get_services
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::SERVICES.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      generic_object = get_generic_object_details(item, resource_name)
      next if generic_object.nil?

      clusterIP = item[:spec][:clusterIP]
      externalIP = item[:spec][:externalIP]
      loadBalancerIP = item[:status][:loadBalancer][:ingress].nil? ? nil : item[:status][:loadBalancer][:ingress][0][:ip]
      ports = item[:spec][:ports]
      ports_arr = []
      if !ports.nil? && !ports.empty?
        ports.each do |port_item|
          next if port_item.nil? || port_item.empty?

          ports_arr.push(port_item.to_h)
        end
      end
      processed_data.push(Service.new(generic_object[:name], generic_object[:namespace], generic_object[:uid], clusterIP, externalIP, loadBalancerIP, ports_arr))
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end

.get_stateful_sets ⇒ Object 



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# File 'lib/discover/object.rb', line 280

def get_stateful_sets
  processed_data = []
  resource_name = Enum::KubernetesObjectsEnum::STATEFUL_SETS.to_s
  response = Util::KubectlOps.get_objects(resource_name)
  begin
    response[:parsed_symbolized][:items].each do |item|
      stateful_set = get_generic_object_details(item, resource_name)
      processed_data << stateful_set unless stateful_set.nil?
    end
  rescue StandardError => e
    logger.error("Unable to fetch '#{resource_name}'")
    raise e
  end
  { processed: processed_data, raw: response[:raw] }
end