Kestra 0.21 introduces Custom Dashboards, No-Code Forms, Log Shipper, and New Flow Property

Kestra 0.21 introduces no-code forms for simpler workflow creation, customizable dashboards for more flexible monitoring, a new core property for cleanup tasks, advanced log forwarding across your entire infrastructure, and several other improvements.

The table below highlights the key features of this release.

Feature	Description	Edition
Log Shipper	Forward Kestra logs across your entire infrastructure	Enterprise Edition
New `finally` core property	Run cleanup tasks at the end of your workflow even if previous tasks fail	All Editions
No Code	New experience regarding no-code flow creation and task edition	All Editions
Custom Dashboards	Create your own custom dashboards, tailored to your monitoring needs	All Editions
Maintenance Mode	Set your Kestra instance in maintenance mode to streamline server upgrades	Enterprise Edition

Check the video below for a quick overview of the new features.

Let’s dive into these highlights and other enhancements in more detail.

Feature Highlights

Log Shipper

The new Log Shipper feature streamlines how you manage and distribute logs across your entire infrastructure. This synchronization automatically batches logs into optimized chunks and manages offset keys. It provides reliable, consistent log delivery without overloading your systems or losing critical data.

Built on plugin architecture, the Log Shipper can forward logs to Elasticsearch, Datadog, New Relic, Azure Monitor, Google Operational Suite, AWS CloudWatch, and OpenTelemetry.

The examples below show how to configure Log Shipper with Datadog and AWS CloudWatch.

Expand for a LogShipper example with Datadog

id: log_shipper
namespace: company.team

tasks:
  - id: log_export
    type: io.kestra.plugin.ee.core.log.LogShipper
    logLevelFilter: INFO
    batchSize: 1000
    lookbackPeriod: P1D
    logExporters:
      - id: data_dog
        type: io.kestra.plugin.ee.datadog.LogExporter
        basePath: '{{ secret("DATADOG_INSTANCE_URL") }}'
        apiKey: '{{ secret("DATADOG_API_KEY") }}'

triggers:
  - id: daily
    type: io.kestra.plugin.core.trigger.Schedule
    cron: "@daily"

datadog logshipper

Expand for an example with AWS CloudWatch

id: log_shipper
namespace: company.team

tasks:
  - id: log_export
    type: io.kestra.plugin.ee.core.log.LogShipper
    logLevelFilter: INFO
    batchSize: 1000
    lookbackPeriod: P1D
    logExporters:
      - id: aws_cloudwatch
        type: io.kestra.plugin.ee.aws.LogExporter
        accessKeyId: "{{ secret('AWS_ACCESS_KEY_ID') }}"
        secretKeyId: "{{ secret('AWS_SECRET_ACCESS_KEY') }}"
        region: us-east-1

triggers:
  - id: daily
    type: io.kestra.plugin.core.trigger.Schedule
    cron: "0 9 * * *" # everyday at 9am

logshipper aws cloudwatch

New No Code Experience

Kestra’s interface has always bridged the gap between code and no-code. In this release, we’ve redesigned our no-code flow editor. The new interface provides intuitive left-side panels for flow properties and organized drawers for simpler navigation of complex plugin properties. A breadcrumb shows your position within each configuration.

Custom Dashboards

Monitoring workflow execution states is a critical aspect of orchestration. This release adds the ability to create custom dashboards, so you can track the executions, logs and metrics in a way that matches your needs. You can declare these dashboards as code in the UI’s editor, defining both chart types and data sources.

As with everything in Kestra, you can manage dashboards as code (and you can create them via Terraform or API). Clicking + Create new dashboard opens a code editor where you can define the dashboard layout and data sources.

Here’s an example that displays executions over time and a pie chart of execution states:

Expand for a Custom Dashboard Code example

title: Data Team Executions
description: Data Executions dashboard
timeWindow:
  default: P30D # P30DT30H
  max: P365D

charts:
  - id: executions_timeseries
    type: io.kestra.plugin.core.dashboard.chart.TimeSeries
    chartOptions:
      displayName: Executions
      description: Executions duration and count per date
      legend:
        enabled: true
      column: date
      colorByColumn: state
    data:
      type: io.kestra.plugin.core.dashboard.data.Executions
      columns:
        date:
          field: START_DATE
          displayName: Date
        state:
          field: STATE
        total:
          displayName: Executions
          agg: COUNT
          graphStyle: BARS
        duration:
          displayName: Duration
          field: DURATION
          agg: SUM
          graphStyle: LINES
      where:
        - field: NAMESPACE
          type: STARTS_WITH
          value: data

  - id: executions_pie
    type: io.kestra.plugin.core.dashboard.chart.Pie
    chartOptions:
      graphStyle: DONUT
      displayName: Total Executions
      description: Total executions per state
      legend:
        enabled: true
      colorByColumn: state
    data:
      type: io.kestra.plugin.core.dashboard.data.Executions
      columns:
        state:
          field: STATE
        total:
          agg: COUNT
      where:
        - field: NAMESPACE
          type: STARTS_WITH
          value: data

alt text

You can find Dashboard blueprints from the left side menu.

Maintenance Mode

Maintenance Mode addresses a frequent challenge in environments running many workflows at scale: safely updating the platform without disrupting active operations. When enabled:

The executor stops processing new executions; new flow executions are automatically queued.
Ongoing executions complete gracefully (workers complete their current tasks without picking up new ones).
The platform still accepts and schedules new executions, buffering them until maintenance is finished (webserver and scheduler components remain active, ensuring no requests are lost).
Once Maintenance Mode is disabled, queued executions resume as normal.

You can enter Maintenance Mode from the Administration > Instance panel.

New `finally` Core Property

We’ve introduced a finally property that runs tasks at the end of a flow, regardless of prior task outcomes. It’s especially useful for cleanup steps like shutting down temporary resources spun up during a flow execution such as Docker containers or on-demand Spark clusters.

Example starting and stopping a Docker container

id: dockerRedis
namespace: company.team

variables:
  host: host.docker.internal

tasks:
  - id: start
    type: io.kestra.plugin.docker.Run
    containerImage: redis
    wait: false
    portBindings:
      - "6379:6379"

  - id: sleep
    type: io.kestra.plugin.core.flow.Sleep
    duration: PT1S
    description: Wait for the Redis container to start

  - id: set
    type: io.kestra.plugin.redis.string.Set
    url: "redis://:redis@{{vars.host}}:6379/0"
    key: "key_string_{{execution.id}}"
    value: "{{flow.id}}"
    serdeType: STRING

  - id: get
    type: io.kestra.plugin.redis.string.Get
    url: "redis://:redis@{{vars.host}}:6379/0"
    key: "key_string_{{execution.id}}"
    serdeType: STRING

  - id: assert
    type: io.kestra.plugin.core.execution.Assert
    errorMessage: "Invalid get data {{outputs.get}}"
    conditions:
      - "{{outputs.get.data == flow.id}}"

  - id: delete
    type: io.kestra.plugin.redis.string.Delete
    url: "redis://:redis@{{vars.host}}:6379/0"
    keys:
      - "key_string_{{execution.id}}"

  - id: getAfterDelete
    type: io.kestra.plugin.redis.string.Get
    url: "redis://:redis@{{vars.host}}:6379/0"
    key: "key_string_{{execution.id}}"
    serdeType: STRING

  - id: assertAfterDelete
    type: io.kestra.plugin.core.execution.Assert
    errorMessage: "Invalid get data {{outputs.getAfterDelete}}"
    conditions:
      - "{{(outputs.getAfterDelete contains 'data') == false}}"

finally:
  - id: stop
    type: io.kestra.plugin.docker.Stop
    containerId: "{{outputs.start.taskRunner.containerId}}"

User Interface & Experience Improvements

As with each release, there are more UI and UX enhancements:

Filters and search bars are now consistent across different panels.
Apps can be previewed in the editor and declared via Terraform definitions. You can also find App blueprints in the Blueprint tab.
System labels have been added for restarted and replayed executions.
In-app plugin documentation now has collapsible task examples and properties, providing a cleaner UI.
Revision history is now available for all resources in the Enterprise Edition.
Failed subflow executions, when restarted from a parent execution, now restart their existing execution from a failed task rather than creating a new execution from scratch.

Other Features and Improvements

OpenTelemetry traces and metrics can now be collected from your Kestra instance.
Most Kestra plugins now support dynamic properties, improving dynamic rendering of Pebble expressions.
Notification plugin improvements: tasks that send flow execution updates now include the last task ID in an execution, along with a link to the execution page, the execution ID, namespace, flow name, start date, duration, and final status.
Apps and Custom Dashboards can be declared via Terraform.
ForEach iteration index is now accessible within the execution context using the taskrun.iteration property.

Plugin enhancements

DuckDB

We’ve fixed an issue preventing DuckDB upgrades. Kestra now supports the latest DuckDB version.

New `Exit` core task

The Exit task allows you to terminate an execution in a given state based on a custom condition.

Exit task example

id: exit
namespace: company.team

inputs:
  - id: state
    type: SELECT
    values:
      - CONTINUE
      - END
    defaults: CONTINUE

tasks:
  - id: if
    type: io.kestra.plugin.core.flow.If
    condition: "{{inputs.state == 'CONTINUE'}}"
    then:
      - id: continue
        type: io.kestra.plugin.core.log.Log
        message: Show must go on...
    else:
      - id: exit
        type: io.kestra.plugin.core.execution.Exit
        state: KILLED

  - id: end
    type: io.kestra.plugin.core.log.Log
    message: This is the end

New `Write` task

The Write task takes your string input and saves it as a file in Kestra’s internal storage. The task returns a URI pointing to the newly created file, which you can reference in subsequent tasks e.g., to upload the file to an S3 bucket.

id: write_file
namespace: company.team

tasks:
  - id: write
    type: io.kestra.plugin.core.storage.Write
    content: Hello World
    extension: .txt

  - id: s3
    type: io.kestra.plugin.aws.s3.Upload
    from: "{{ outputs.write.uri }}"
    bucket: kestraio
    key: data/myfile.txt

New HuggingFace Plugin

The new huggingface.Inference task integrates with the HuggingFace Inference API, letting you incorporate LLM-based capabilities into your Kestra workflows.

HuggingFace Inference task example

id: hugging_face
namespace: blueprint

inputs:
  - id: message
    type: STRING

tasks:
  - id: classification
    type: io.kestra.plugin.huggingface.Inference
    model: facebook/bart-large-mnli
    apiKey: "{{ secret('HUGGINGFACE_API_KEY') }}"
    inputs: "{{ inputs.message }}"
    parameters:
        candidate_labels:
          - "support"
          - "warranty"
          - "upsell"
          - "help"

  - id: log
    type: io.kestra.plugin.core.log.Log
    message: "The input is categorized as a {{ json(outputs.classification.output).labels[0] }} message."

New AWS EMR plugin

The AWS EMR plugin lets you create or terminate AWS EMR clusters and manage jobs.

Example to create an AWS EMR cluster with a Spark job

id: aws_emr
namespace: company.team

tasks:
  - id: create_cluster
    type: io.kestra.plugin.aws.emr.CreateCluster
    accessKeyId: {{ secret('AWS_ACCESS_KEY') }}
    secretKeyId: {{ secret('AWS_SECRET_KEY') }}
    region: eu-west-3
    clusterName: "Spark_job_cluster"
    logUri: "s3://kestra-test/test-emr-logs"
    keepJobFlowAliveWhenNoSteps: true
    applications:
      - Spark
    masterInstanceType: m5.xlarge
    slaveInstanceType: m5.xlarge
    instanceCount: 3
    ec2KeyName: test-key-pair
    steps:
      - name: Spark_job_test
        jar: "command-runner.jar"
        actionOnFailure: CONTINUE
        commands:
          - spark-submit s3://kestra-test/health_violations.py --data_source s3://kestra-test/food_establishment_data.csv --output_uri s3://kestra-test/test-emr-output
    wait: false

New Pebble functions

randomInt to generate a random integer.
uuid to generate a UUID.
distinct to get a unique set of values from an array (e.g., ['1', '1', '2', '3'] | distinct returns ['1', '2', '3']).

Thanks to Our Contributors

Thank you to everyone who contributed to this release through feedback, bug reports, and pull requests. If you want to become a Kestra contributor, check out our Contributing Guide and the list of good first issues.

Next Steps

This post covered new features and enhancements added in Kestra 0.21.0. Which of them are your favorites? What should we add next? Your feedback is always appreciated.

If you have any questions, reach out via Slack or open a GitHub issue.

If you like the project, give us a GitHub star ⭐️ and join the community.

Get Kestra updates to your inbox

Stay up to date with the latest features and changes to Kestra

Kestra 0.21 introduces Custom Dashboards, No-Code Forms, Log Shipper, and New Flow Property

Authors

Category

Last Updated

Table of contents

Contribute

Share this news

Feature Highlights

Log Shipper

New No Code Experience

Custom Dashboards

Maintenance Mode

New `finally` Core Property

User Interface & Experience Improvements

Other Features and Improvements

Plugin enhancements

DuckDB

New `Exit` core task

New `Write` task

New HuggingFace Plugin

New AWS EMR plugin

New Pebble functions

Thanks to Our Contributors

Next Steps

Get Kestra updates to your inbox

Kestra 0.21 introduces Custom Dashboards, No-Code Forms, Log Shipper, and New Flow Property

Authors

Category

Last Updated

Table of contents

Contribute

Share this news

Feature Highlights

Log Shipper

New No Code Experience

Custom Dashboards

Maintenance Mode

New finally Core Property

User Interface & Experience Improvements

Other Features and Improvements

Plugin enhancements

DuckDB

New Exit core task

New Write task

New HuggingFace Plugin

New AWS EMR plugin

New Pebble functions

Thanks to Our Contributors

Next Steps

Get Kestra updates to your inbox

New `finally` Core Property

New `Exit` core task

New `Write` task