Command Schedulers

Dagu – lightweight workflow orchestration engine

Dagu is a lightweight workflow orchestration engine for Linux that lets you define Directed Acyclic Graphs in YAML and run them from a single self-contained binary.

It is designed for local-first operation and can handle everything from scheduled jobs and existing script orchestration to distributed coordinator/worker execution across multiple machines over gRPC. Dagu stores its state in local files by default and does not require an external database, message broker, or language-specific runtime.

This is free and open source software.

Key Features

  • Defines workflows as YAML DAGs for declarative job orchestration.
  • Runs as a single binary with no external dependencies.
  • Supports local execution, cron scheduling, retry policies, timeout controls, and overlap handling.
  • Includes a web interface showing execution history, logs, and real-time status.
  • Offers standalone, coordinator/worker, and headless deployment modes.
  • Provides built-in executors for shell commands, Docker, Kubernetes, SSH, HTTP, SQL, S3, jq, email, archives, routing, agents, and sub-workflows.
  • Can orchestrate existing shell scripts, Python scripts, HTTP calls, and other executables without modifying them.
  • Uses file-based storage for logs, state, and queue data by default.

Website: github.com/dagu-org/dagu
Support:
Developer: dagucloud
License: GNU General Public License v3.0

Dagu in action
Click image for full size

Dagu is written in Go. Learn Go with our recommended free books and free tutorials.


Related Software

Alternatives to cron
cronieModern day version of cron and associated tools
fcronDesigned for systems which are not continuously running or regularly
systemdSuite of basic building blocks for a Linux system
mcron100% compatible replacement for Vixie cron
anacronDesigned for systems which are not continuously running
JobberRun commands to a schedule
bcronDesigned with secure operations in mind
CronicleMulti-server task scheduler and runner
SupercronicCrontab-compatible job runner designed for container environments
runcronMinimal cron alternative for automated and container-friendly environments

Read our verdict in the software roundup.


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