Dash0 acquires Polar Signals

Aug 20, 2026

Contributors

Michele Mancioppi

Michele Mancioppi

Nicolas Takashi

Nicolas Takashi

Terraform actions for deployment markers and log events

You can now create deployment events and other log events via the Dash0 Terraform Provider through actions.

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In the Deployments as chart annotations changelog, we introduced how to use log events as annotations on dashboards.

But how do you create these deployment events when you use Terraform? terraform apply is often the exact moment a deployment happens, but marking that moment in Dash0 used to mean stepping outside Terraform: the CLI, a CI step, a webhook. The dash0_deployment_event and dash0_log_event actions, introduced in the Terraform provider for Dash0 v1.16.0, close that gap.

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deployment.hcl
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resource "kubernetes_deployment" "checkout_api" {
  # ... deployment configuration ...


  lifecycle {
    action_trigger {
      events  = [after_create, after_update]
      actions = [action.dash0_deployment_event.release]
    }
  }
}


action "dash0_deployment_event" "release" {
  config {
    service_name                = "checkout-api"
    service_version             = var.image_tag
    deployment_environment_name = "production"
    deployment_status           = "succeeded"
    dataset                     = "production"
  }
}

dash0_deployment_event sends a dash0.deployment event that shows up as a dashboard annotation, so "what changed right before this graph moved?" has an answer.

dash0_log_event is its general-purpose sibling: send an arbitrary log event, mirroring the dash0 logs send CLI command.

Both need Terraform 1.14 or later and the provider's new otlp_url attribute (or DASH0_OTLP_URL), which points at the OTLP ingress endpoint rather than the API.

Learn more about actions via our documentation.

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