Grafana Alloy is the new name for our distribution of the OTel collector. Grafana Agent has been deprecated and is in Long-Term Support (LTS) through October 31, 2025. Grafana Agent will reach an End-of-Life (EOL) on November 1, 2025. Read more about why we recommend migrating to Grafana Alloy.

Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.



BETA: This is a beta component. Beta components are subject to breaking changes, and may be replaced with equivalent functionality that cover the same use case.

loki.echo receives log entries from other loki components and prints them to the process’ standard output (stdout).

Multiple loki.echo components can be specified by giving them different labels.


loki.echo "LABEL" {}


loki.echo accepts no arguments.

Exported fields

The following fields are exported and can be referenced by other components:

receiverLogsReceiverA value that other components can use to send log entries to.

Component health

loki.echo is only reported as unhealthy if given an invalid configuration.

Debug information

loki.echo does not expose any component-specific debug information.


This example creates a pipeline that reads log files from /var/log and prints log lines to echo:

local.file_match "varlog" {
  path_targets = [{
    __path__ = "/var/log/*log",
    job      = "varlog",

loki.source.file "logs" {
  targets    = local.file_match.varlog.targets
  forward_to = [loki.echo.example.receiver]

loki.echo "example" { }