Configuration Error in Alloy v1.4: “prometheus.remote_write should be capsule, got object”

Grafana Alloy
1

Dears,

I’m configuring Alloy v1.4 to collect metrics from two hosts (MimirTest1 and MimirTest2) and forward them to Mimir in separate tenants. However, starting the service gives the error:

prometheus.remote_write.tenant_hostB should be capsule, got object

Below is the configuration section related to prometheus.scrape and forward_to:

prometheus.scrape "default" {
  targets = array.concat(
    prometheus.exporter.unix.default.targets,
    [
      { job = "MimirTest1_metrics", __address__ = "10.200.12.125:9273" },
      { job = "MimirTest2_metrics", __address__ = "10.200.12.114:9273" }
    ]
  )
  forward_to = [
    prometheus.remote_write.tenant_hostB,
    prometheus.remote_write.tenant_hostC
  ]
}

prometheus.remote_write "tenant_hostB" {
  url = "http://127.0.0.1:9009/api/v1/push"
  headers = { "X-Scope-OrgID" = "MimirTest1" }
}

prometheus.remote_write "tenant_hostC" {
  url = "http://127.0.0.1:9009/api/v1/push"
  headers = { "X-Scope-OrgID" = "MimirTest2" }
}

Could you provide guidance on resolving this error?

Thank you for your assistance.

Best regards,

2

It is sending it to an object when we need to specify a method on an object. Should be:

forward_to = [
    prometheus.remote_write.tenant_hostB.receiver,
    prometheus.remote_write.tenant_hostC.receiver
  ]