Solution Debug logs

Murano provides different debugging tools which includes Solution debug logging allowing user to track events and errors occurring in a Murano solution.

The Murano user-interface or client tool provides real-time logs information described in details in this document.

Log Format

Logs are provided in a standardized JSON and follow the following structure. Examples available in next chapter.

Fields common to all logs

Field Name	Type	Example	Description
severity	ENUM( 0, # Emergency: system is unusable, 1, # Alert: action must be taken immediately, 2, # Critical: critical conditions, 3, # Error: error conditions, 4, # Warning: warning conditions, 5, # Notice: normal but significant condition, 6, # Informational: informational messages, 7, # Debug: debug-level messages )	0	Severity of the log entry as defined by rsyslog standard.
type	ENUM( "script", "call", "event", "config", "service")	"script"	The type of the log entry as defined in next chapter. "script" - User Lua "print()" function call "call" - On service calls from Lua. "event" - On event trigger from services "config" - On solution configuration change or used service deprecation warning. "service" - Services generated & transmitted to Dispatcher.
message	string	"Request URL:https://someapp.apps.<ROOT-DOMAIN>/notifications-miniview Request Method:GET Status Code:200 OK Remote Address:45.56.95.64:443"	Plain text field describing the log entry event.
service	string	"webservice"	The service via which the event name is coming or the service of which the function is called.
event	string	"request"	Depending on the type: - Event, Script => The event name - Call => The operation name
timestamp	integer	1474489282537	Timestamp in milliseconds
tracking_id	string	Ex. UUID	Tracking id following a Murano execution including: the event trigger, script execution and service calls.
data	JSON	{"custom data": ..}	Type specific data

Different Type of Logs

The following type of logs are available: * Scripting ("script") - Scripting generated entry by a Lua "print(..)" or "log.xxx(..)" statement. * Service call ("call") - Service operation call information. * Event trigger ("event") - Log related to event triggering routing. * Configuration ("config") - Occurs when the Murano solution is updated. * Service specific ("service") - Log generated by Service configured for the Solution.

Type specific information described in this chapter are provided under the "data" field.

Field Name	Type	Example	Description	Log Types
request	any	{}	The content of the request call	call, event
response	any	{}	The content of the response	call, event
code	integer	404	HTTP Status Code results	call, event, [config], [service]
elapsed	integer	1230	Elapsed time in milliseconds. Depending on the type. - Event: Trigger duration - Script: Processing duration so far - Webservice: Request duration	event, script, call, service(webservice)
module	string	utils	The affected lua module or eventhandler This field only support direct query matching and doesn't support special operators!	[script], [config]
section	string (<method>:<path>)	get_/api/v1/users	If available script section within the module or eventhandler. Example: Webservice endpoint. This field only support direct query matching and doesn't support special operators!	script
location	string	module/md5:512	Indicates module or eventhandler followed by sub-section and relative line number to the log emitter. This field cannot be queried!	script

Examples

Script

Lua 'print("abc")' or 'log.info("abc")'

{
  "type": "script",
  "timestamp": 1474489282537,
  "severity": 6, // info
  "message": "abc",
  "tracking_id": "<UUID>",
  "service": "webservice",
  "event": "request",
  "data": { // Type specific
    "section": "get_/index",
    "module": "webservice_request",
    "location": "event/webservice_request:195 get_/index:123",
    "elapsed": 10
  }
}

Service Call

Keystore.get({key="abc"}) call failed.

{
  "type": "call",
  "timestamp": 1474489282537,
  "severity": 3, // error
  "message": "Service Call failed with error: timeout",
  "tracking_id": "<UUID>",
  "service": "keystore",
  "event": "get", // The operation id
  "data": { // Type specific
    "request": {..},
    "response": {..},
    "code": 504
   }
}

Service Event triggered

Timer timer event trigger failed.

{
  "type": "event",
  "timestamp": 1474489282537,
  "severity": 3, // error
  "message": "Event trigger failed with: event handler not found",
  "tracking_id": "<UUID>",
  "service": "timer",
  "event": "timer",
  "data": { // Type specific
    "request": <incoming payload>,
    "response": <lua response payload>,
    "code": 404
  }
}

Config

A had been added to the solution.

{
  "severity": 5,
  "timestamp": 1513159931988,
  "type": "config",
  "service": <service>,
  "event": <event>,
  "tracking_id": <tracking_id>,
  "message": "<Eventhandler|Serviceconfig|Module|Route> <name> added to Solution.",
  "data": {
    "id": "62cbcb50-0a4e-11e8-878e-1fdda701bd48",
    "name": <name>,
    "script_key": <script_key> //only for Serviceconfig
  }
}