Method: OpenC3::PluginModel#undeploy

Defined in:

lib/openc3/models/plugin_model.rb

#undeploy ⇒ Object

Undeploy all models associated with this plugin

# File 'lib/openc3/models/plugin_model.rb', line 326

def undeploy
  errors = []
  microservice_count = 0
  microservices = MicroserviceModel.find_all_by_plugin(plugin: @name, scope: @scope)
  microservices.each do |_name, model_instance|
    begin
      model_instance.destroy
    rescue Exception => e
      errors << e
    end
    microservice_count += 1
  end
  # Wait for the operator to wake up and remove the microservice processes
  sleep 15 if microservice_count > 0 # Cycle time 5s times 2 plus 5s wait for soft stop and then hard stop
  # Remove all the other models now that the processes have stopped
  # Save TargetModel for last as it has the most to cleanup
  [InterfaceModel, RouterModel, ToolModel, WidgetModel, TargetModel].each do |model|
    model.find_all_by_plugin(plugin: @name, scope: @scope).each do |_name, model_instance|
      begin
        model_instance.destroy
      rescue Exception => e
        errors << e
      end
    end
  end
  # Cleanup Redis stuff that might have been left by microservices
  microservices.each do |_name, model_instance|
    begin
      model_instance.cleanup
    rescue Exception => e
      errors << e
    end
  end
  # Raise all the errors at once
  if errors.length > 0
    message = ''
    errors.each do |error|
      message += "\n#{error.formatted}\n"
    end
    raise message
  end
rescue Exception => e
  Logger.error("Error undeploying plugin model #{@name} in scope #{@scope} due to: #{e.formatted}")
ensure
  # Double check everything is gone
  found = []
  [MicroserviceModel, InterfaceModel, RouterModel, ToolModel, WidgetModel, TargetModel].each do |model|
    model.find_all_by_plugin(plugin: @name, scope: @scope).each do |_name, model_instance|
      found << model_instance
    end
  end
  if found.length > 0
    # If undeploy failed we need to not move forward with anything else
    Logger.error("Error undeploying plugin model #{@name} in scope #{@scope} due to: Plugin submodels still exist after undeploy = #{found.length}")
    raise "Plugin #{@name} submodels still exist after undeploy = #{found.length}"
  end
end