hi all i'm scraping my metrics using the otel and sending them to the signoz in another cluster, but I'm facing a really hard time querying the metrics that is my otel config

receivers:
  fluentforward:
    endpoint: 0.0.0.0:24224
  hostmetrics:
    collection_interval: 30s
    scrapers:
      cpu: {}
      disk: {}
      filesystem: {}
      load: {}
      memory: {}
      network: {}
prometheus:
    config:
      scrape_configs:
      - job_name: kubernetes-service-endpoints-dev
        kubernetes_sd_configs:
        - role: endpoints
        relabel_configs:
        - action: labelmap
          regex: __meta_kubernetes_service_label_(.+)
        - action: replace
          source_labels:
          - __meta_kubernetes_namespace
          target_label: kubernetes_namespace
        - action: replace
          source_labels:
          - __meta_kubernetes_service_name
          target_label: kubernetes_name
        - action: keep
          regex: .+
          source_labels:
          - __address__
        - action: keep
          regex: Pod;metrics
          separator: ;
          source_labels:
          - __meta_kubernetes_endpointslice_address_target_kind
          - __meta_kubernetes_endpointslice_port_name
service:
  pipelines:
    metrics:
      exporters:
      - logging
      - otlp/metrics
      processors:
      - memory_limiter
      - batch
      receivers:
      - prometheus

when i try to build some dashboard using the promql, if i type up for example i can receive something like that

up{__temporality__="Unspecified",job_name="generic-collector",k8s_container_name="clickhouse",k8s_namespace_name="monitoring",k8s_node_name="xxxx-36537629-vmss00001w",k8s_pod_name="chi-xxxx-signoz-clickhouse-cluster-0-0-0",k8s_pod_phase="Running",k8s_pod_ready="true",k8s_pod_uid="971b1982-99df-4bb4-a5b4-3a9b51b81d8f",signoz_k8s_component="clickhouse",signoz_k8s_instance="bmcl-signoz",signoz_k8s_name="clickhouse"}

but i cannot query for any of this labels, can someone point me to some good documentation?

What do you mean you can't query any of the labels? You just need to follow PromQL syntax.

idk, i was not able to use the proper syntax, now i can use some, i'm quite frustrated because i'm not able to query something like that

{__name__!=""}

to list all the metrics in signoz