Alloy faro.receiver log_format doesn't work

[clementduveau]

What's wrong?

Check this thread for full context.

Basically, Alloy complains that log_format is unrecognized in faro.receiver while it's documented and the argument is listed

Steps to reproduce

Install Alloy 1.7.1
Use the config block provided
Start Alloy

System information

No response

Software version

Alloy 1.7.1

Configuration

faro.receiver "default" {
  
  log_format = "json"
  
  server {
    listen_address = "0.0.0.0"
    listen_port = 12347
    cors_allowed_origins = ["*"]
  }
  output {
      logs   = [loki.process.default.receiver]
  }
}

Logs

error: /etc/alloy/config.alloy:6:5: unrecognized attribute name "log_format"
 | faro.receiver "default" {
 | log_format = "json"
 | ^^^^^^^^^^^^^^^^^^
 | server {ts=2025-03-07T08:35:36.369833726Z level=error msg="failed to start reporter" err="context canceled" interrupt received