Blueprints

Send a Telegram notification when a workflow fails

Source

yaml
id: telegram-notify-on-failure
namespace: company.team

tasks:
  - id: send_notification
    type: io.kestra.plugin.notifications.telegram.TelegramExecution
    token: "{{ secret('TELEGRAM_TOKEN') }}"
    channel: "2072728690"
    payload: "Kestra Workflow Failure: {{ trigger.executionId }} has failed on {{
      taskrun.startDate }}"
    executionId: "{{ trigger.executionId }}"

triggers:
  - id: on_failure
    type: io.kestra.plugin.core.trigger.Flow
    conditions:
      - type: io.kestra.plugin.core.condition.ExecutionStatusCondition
        in:
          - FAILED
          - WARNING
      - type: io.kestra.plugin.core.condition.ExecutionNamespaceCondition
        namespace: company
        comparison: PREFIX

About this blueprint

System Notifications

This system flow will send a Telegram notification anytime a workflow in a company namespace (or any nested child namespace) fails. Using this pattern, you can send Telegram notifications for Kestra workflow execution failures alongside other notifications. You can customize that system flow by modifying the task, adding more tasks to the flow or adjusting the trigger conditions. Read more about that pattern in the Administrator Guide. Let's create a flow in the namespace with prefix company that will always fail.

yaml
tasks:
  - id: always_fails
    type: io.kestra.plugin.core.execution.Fail

Whenever you run the failure_flow, it will trigger an execution of the telegram_notify_on_failure flow. As a result, a Telegram notification will be sent so that prompt action can be taken.

Telegram Execution

Flow

Execution Status Condition

Execution Namespace Condition

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