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- Oct 2021
few battle-hardened options, for instance: Airflow, a popular open-source workflow orchestrator; Argo, a newer orchestrator that runs natively on Kubernetes, and managed solutions such as Google Cloud Composer and AWS Step Functions.
Current top orchestrators:
- Google Cloud Composer
- AWS Step Functions
Argo Workflow is part of the Argo project, which offers a range of, as they like to call it, Kubernetes-native get-stuff-done tools (Workflow, CD, Events, Rollouts).
High level definition of Argo Workflow
Argo is designed to run on top of k8s. Not a VM, not AWS ECS, not Container Instances on Azure, not Google Cloud Run or App Engine. This means you get all the good of k8s, but also the bad.
Pros of Argo Workflow:
- Support for RBAC
Cons of Argo Workflow:
- A lot of YAML files required
- k8s knowledge required
If you are already heavily invested in Kubernetes, then yes look into Argo Workflow (and its brothers and sisters from the parent project).The broader and harder question you should ask yourself is: to go full k8s-native or not? Look at your team’s cloud and k8s experience, size, growth targets. Most probably you will land somewhere in the middle first, as there is no free lunch.
Should you go into Argo, or not?
In order to reduce the number of lines of text in Workflow YAML files, use WorkflowTemplate . This allow for re-use of common components.