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Open source


otelcol.auth.basic exposes a handler that can be used by other otelcol components to authenticate requests using basic authentication.

This extension supports both server and client authentication.

NOTE: otelcol.auth.basic is a wrapper over the upstream OpenTelemetry Collector basicauth extension. Bug reports or feature requests will be redirected to the upstream repository, if necessary.

Multiple otelcol.auth.basic components can be specified by giving them different labels.


otelcol.auth.basic "LABEL" {
  username = "USERNAME"
  password = "PASSWORD"


otelcol.auth.basic supports the following arguments:

usernamestringUsername to use for basic authentication requests.yes
passwordsecretPassword to use for basic authentication requests.yes

Exported fields

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

handlercapsule(otelcol.Handler)A value that other components can use to authenticate requests.

Component health

otelcol.auth.basic is only reported as unhealthy if given an invalid configuration.

Debug information

otelcol.auth.basic does not expose any component-specific debug information.


This example configures otelcol.exporter.otlp to use basic authentication:

otelcol.exporter.otlp "example" {
  client {
    endpoint = "my-otlp-grpc-server:4317"
    auth     = otelcol.auth.basic.creds.handler

otelcol.auth.basic "creds" {
  username = "demo"
  password = env("API_KEY")