applicationmapper

This is is a Kubernetes controller implemented using Metacontroller that can generates ArgoCD applications conveniently via Helm templates from input sources that are not sourced from GitOps, but instead from Rest APIs.

It is comparable to an ArgoCD ApplicationSet resource, but more powerful and decoupled from GitOps. The primary use case of this controller is to manage automatic deployments of mostly homogeneous applications based on external data sources, such as spinning up (and down) customer environments.

Usage

The ApplicationMapper resource is a Cluster-scoped resource because it allows it to generate resources in any namespace. This is relevant for being able to generate an Application object in the argocd namespace while being able to populate Secret and ConfigMap resources in another namespace (e.g. where the application deploys its resources to).

The template in an ApplicationMapper may produce any of the following resources:

• argoproj.io/v1alpha1/Application
• v1/ConfigMap
• v1/Secret

Examples

• Guestbook – Creates an instance of the ArgoCD Guestbook application, one per item in a static list of subscription IDs.