It's not about blazar or Openstack-Helm.

You can see it as, when Ceilometer gets an event notification, a payload is received with a data set in json format as mentioned in the trailing mail.
My goal is to fetch a value from a list of "key:value" pairs for each dictionary item in this list. This list is nested as a "value" of a "key" in payload:

Payload: {
     key1: value1
     key2: value2
     key3: [
                 {
                    keyA: valueAa
                    keyB: valuesBa  <<<<<==== I want to fetch this valueBa  for creating a metric for keyB
                    keyC: valueCa
                  },
                 {
                    keyA: valueAb
                    keyB: valuesBb  <<<<<==== I want to fetch this valueBb  for creating a metric for keyB
                    keyC: valueCb
                  },
                 {
                    keyA: valueAc
                    keyB: valuesBc  <<<<<==== I want to fetch this valueBb  for creating a metric for keyB
                    keyC: valueCc
                  }
      ]
}

Is Ceilometer/Gnocchi able to fetch this type of data for creating metrics and use for the "volume" field in the metric?

Thanks & Best Regards,
Nitin Gupta

On Fri, Jan 9, 2026 at 2:24 PM Matthias Runge <mrunge@matthias-runge.de> wrote:


On 1/8/26 1:29 PM, NITIN GUPTA wrote:
> Thanks Matthias, for your response!
>

> *
> *Could you please provide a solution for this!
>

I'm sorry, it doesn't work that way. I don't use blazar nor openstack-helm.

Matthias



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NITIN GUPTA