ArgoCD Prometheus exporter for reading the application tags and showing deployment drift from the now() time.
The idea of this exporter is to bring to Prometheus metrics which can show the cadance of deployments for GitOps oriented companies.
It exports the current Docker image tag, the Application from the ArgoCD CRD, and the deployedAt from the history of the application.
It does 1+n where n=number of applications deployed via ArgoCD Application CRDs. The first request is getting the application names, and the other request are traversing via the ArgoCD API the needed data.
Its built on Python, so just running python main.py gets you the exporter up and running, but before that you need to set the configuration described in the next section. The exporter is available on port 8000.
ARGOCD_API_ENDPOINT - your in-cluster ArgoCD Server deployment endpoint. Usually its svc/argocd-server on port 8080 in the argocd namespace. Mind that the default installation of ArgoCD runs on https:// but with self-signed certificate.
ARGOCD_API_TOKEN - token for the API of the ArgoCD Server. This token can be obtained via the following command after you authenticate your argocd CLI: argocd account generate-token --account admin