Prometheus monitoring fails when app name contains a UUID

[BuddhiWathsala]

Description:
In Kubernetes deployment of Siddhi apps, especially in a distributed deployment, the Siddhi parser will concatenate a UUID to the Siddhi app name as below.

@App:name("5.DelayAlert-979d46e5-3a47-4db8-ad81-682238f2f19c-1")

In that case, the Prometheus monitoring of the Siddhi app did not show any useful information.

A sample executable query given by the Siddhi Prometheus server is as follows.

io_siddhi_SiddhiApps_5_DelayAlert_979d46e5_3a47_4db8_ad81_682238f2f19c_1_Siddhi_OnDemandQueries_query_latency

Suggested Labels:
Bug

Affected Product Version:

• Siddhi runner 5.1.2
• Siddhi operator 0.2.2

Steps to reproduce:
Try the TFL use case in K8s here.