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Richard_Grigsb1's avatar
Richard_Grigsb1
Icon for Altostratus rankAltostratus
Mar 02, 2021

Stumped by regular expression

Requirement: build a health Check to send an api url call to server and parse the return value for key indicators.   URL: rldimedas1.tcbna.net/rest/apigateway/health/all   Crafted Send String...
api
BIG-IP
devops
health check
Receive String Parsing
Richard_Grigsb1's avatar
Richard_Grigsb1
Icon for Altostratus rankAltostratus
Mar 05, 2021

Issue resolved.

 

I discovered that the "Type" and "parent monitor" were set to "HTTPS" but SSL Profile was left at "NONE". I selected a generic ssl profile and the health check started functioning.

 

Here is what I end up with for the unique/per server in the pool/heath check.

 

Send String: GET /rest/apigateway/health/all HTTP/1.1\r\nHost: rldimedas1.tcbna.net\r\nConnection: Close\r\n\r\n

Receive String: elasticsearch.*cluster_name.*DEV_EventDataStore.*status.*green.*number_of_nodes.*status.*green.*diskspace.*terracotta.*status.*green.*nodes

 

The additional items in the receive string parse are so the F5 does not match subsequent  "status": "green" occurrences in the reply.

 

Thank You for your responses.

 

I am moving forward with the "monitoring server platform" idea that will provide an UP/DOWN HTML page for the F5 to check.