Argo CD

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. Argo CD follows the GitOps pattern of using Git repositories as the source of truth for defining the desired application state. It automates the deployment of the desired application states in the specified target environments. Application deployments can track updates to branches, tags, or pinned to a specific version of manifests at a Git commit. This article describes how to configure Azure Managed Prometheus with Azure Kubernetes Service(AKS) and Azure Arc-enabled Kubernetes to monitor Argo CD by scraping prometheus metrics.

• Argo CD running on AKS or Azure Arc-enabled Kubernetes
• Azure Managed Prometheus enabled on the cluster - Enable Azure Managed Prometheus on AKS

Deploy the following service monitors to configure Azure managed prometheus addon to scrape prometheus metrics from the argocd workload.

apiVersion: azmonitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: azmon-argocd-metrics
spec:
  labelLimit: 63
  labelNameLengthLimit: 511
  labelValueLengthLimit: 1023
  selector:
    matchLabels:
     app.kubernetes.io/name: argocd-metrics
  namespaceSelector:
    any: true
  endpoints:
  - port: metrics
---
apiVersion: azmonitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: azmon-argocd-repo-server-metrics
spec:
  labelLimit: 63
  labelNameLengthLimit: 511
  labelValueLengthLimit: 1023
  selector:
    matchLabels:
      app.kubernetes.io/name: argocd-repo-server
  namespaceSelector:
    any: true
  endpoints:
  - port: metrics
---
apiVersion: azmonitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  name: azmon-argocd-server-metrics
spec:
  labelLimit: 63
  labelNameLengthLimit: 511
  labelValueLengthLimit: 1023
  selector:
    matchLabels:
      app.kubernetes.io/name: argocd-server-metrics
  namespaceSelector:
    any: true
  endpoints:
  - port: metrics

1. Download the template and parameter files

   Alerting Rules

   • Template file
   • Parameter file

2. Edit the following values in the parameter files. Retrieve the resource ID of the resources from the JSON View of their Overview page.

   Expand table

   Parameter	Value
   azureMonitorWorkspace	Resource ID for the Azure Monitor workspace. Retrieve from the JSON view on the Overview page for the Azure Monitor workspace.
   location	Location of the Azure Monitor workspace. Retrieve from the JSON view on the Overview page for the Azure Monitor workspace.
   clusterName	Name of the AKS cluster. Retrieve from the JSON view on the Overview page for the cluster.
   actionGroupId	Resource ID for the alert action group. Retrieve from the JSON view on the Overview page for the action group. Learn more about action groups

3. Deploy the template by using any standard methods for installing ARM templates. For guidance, see ARM template samples for Azure Monitor.

To import the grafana dashboards using the ID or JSON, follow the instructions to Import a dashboard from Grafana Labs.

ArgoCD(ID-14191)

When the service monitors is successfully applied, if you want to make sure that the service monitor targets get picked up by the addon, follow the instructions here.