feat: added argocd app deployment

Signed-off-by: David <[email protected]>

Author: dotdc

Diff for: README.md

@@ -10,6 +10,7 @@
 - [Installation](#installation)
   - [Install manually](#install-manually)
   - [Install via grafana.com](#install-via-grafanacom)
+  - [Install with ArgoCD](#install-with-argocd)
   - [Install as ConfigMaps](#install-as-configmaps)
   - [Install as ConfigMaps with Terraform](#install-as-configmaps-with-terraform)
 - [Contributing](#contributing)
@@ -80,6 +81,14 @@ Grafana.com dashboard id list:
 | k8s-views-nodes.json               | 15759 |
 | k8s-views-pods.json                | 15760 |
 
+### Install with ArgoCD
+
+If you have ArgoCD, this will deploy the dashboards in ArgoCD's default project:
+
+```terminal
+kubectl apply -f argocd-app.yml
+```
+
 ### Install as ConfigMaps
 
 Grafana dashboards can be provisionned as Kubernetes ConfigMaps if you configure the [dashboard sidecar](https://github.com/grafana/helm-charts/blob/main/charts/grafana/values.yaml#L667) available on the official [Grafana Helm Chart](https://github.com/grafana/helm-charts/tree/main/charts/grafana).

Diff for: argocd-app.yml

@@ -0,0 +1,29 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: grafana-dashboards-kubernetes
+  namespace: argocd
+  labels:
+    app.kubernetes.io/name: grafana-dashboards-kubernetes
+    app.kubernetes.io/version: HEAD
+    app.kubernetes.io/managed-by: argocd
+  finalizers:
+  - resources-finalizer.argocd.argoproj.io
+spec:
+  project: default # You may need to change this!
+  source:
+    path: ./
+    repoURL: https://github.com/dotdc/grafana-dashboards-kubernetes
+    targetRevision: HEAD
+
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: monitoring
+  syncPolicy:
+    ## https://argo-cd.readthedocs.io/en/stable/user-guide/auto_sync
+    automated:
+      prune: true
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true
+      - Replace=true