Add static label in metrics

[ahmedaall]

Hi @thenodon :

Describe the bug
Is it possible to add static label in a class query :

BEFORE
aci_node_system_psu_status{aci="MY_FABRIC",fabric="MY_FABRIC",node_id="2",pod_id="1",psu_slot_id="6"} 1

AFTER
aci_node_system_psu_status{aci="MY_FABRIC",fabric="MY_FABRIC",node_id="2",pod_id="1",psu_slot_id="6" sensor_name="PDU"} 1

By static I mean that this label doesn't correspond any class attribut. It is like a custom label that is added to the config

[thenodon]

@ahmedaall Just add staticlabels to the class query, for example:

class_queries:
  interface_info:
    class_name: l1PhysIf
    query_parameter: "?rsp-subtree=children&rsp-subtree-include=stats&rsp-subtree-class=ethpmPhysIf,eqptIngrBytes5min,eqptEgrBytes5min,eqptIngrDropPkts5min,eqptEgrDropPkts5min&query-target-filter=and(ne( l1PhysIf.adminSt, \"down\"))"
    metrics:
      - name: interface_oper_speed
        value_name: l1PhysIf.children.[ethpmPhysIf].attributes.operSpeed
        type: gauge
        help: The current operational speed of the interface, in bits per second.
        value_transform:
          'unknown': 0
          '100M': 100000000
          '1G': 1000000000
          '10G': 10000000000
          '25G': 25000000000
          '40G': 40000000000
          '100G': 100000000000
          '400G': 400000000000
    labels:
      #- property_name: l1PhysIf.attributes.id
      #  regex: "^(?P<id>.*)"
      - property_name: l1PhysIf.attributes.dn
        regex: "^topology/pod-(?P<podid>[1-9][0-9]*)/node-(?P<nodeid>[1-9][0-9].*)/sys/phys-\\[(?P<port>.+)\\]"
    staticlabels:
      - key: mystaticlabel
        value: mystaticvalue

[ahmedaall]

@thenodon It works perfectly ! thank you

[thenodon]

Great to hear.

[camrossi]

I was looking for exactly this! Could we add it to the readme? :)

[thenodon]

@camrossi yes we should. I will reopen this ticket so its added in next release.

[thenodon]

This is fixed in commit a49070a branch issue_42 with an update to readme