Add cost dashboard (#17)

charts/observability/Chart.yaml

@@ -6,7 +6,7 @@ icon: https://avatars.githubusercontent.com/u/474424?s=200&v=4
 
 type: application
 
-version: 0.1.4
+version: 0.1.5
 
 appVersion: ""
 dependencies:

charts/observability/README.md

@@ -21,3 +21,27 @@
              └─────────┘   
                           
 ```
+
+## Components
+
+### [OpenCost](https://www.opencost.io/)
+Exports cost metrics to Prometheus for analyzing Kubernetes resource costs and efficiencies
+### [Vector](https://vector.dev/)
+Collects, transforms, and routes observability data (logs and metrics)
+### [Prometheus](https://prometheus.io/docs/introduction/overview/)
+Monitors targets by scraping metrics
+### [node-exporter](https://github.com/prometheus/node_exporter)
+Provides system-level metrics to Prometheus for monitoring hardware and OS details.
+Metrics are forwarded to prometheus through vector instead of crawled directly since the EKS CNI in use does not support direct connections to DaemonSets without hostNetwork
+### [Grafana](https://grafana.com/)
+Visualizes data from various sources, including Prometheus and Loki, for dashboards and logs
+### [kube-state-metrics](https://github.com/kubernetes/kube-state-metrics)
+Listens to the Kubernetes API server and generates metrics about the state of the objects
+
+## Grafana
+### Adding new dashboards
+There's two different ways to add a dashboard
+#### _Option 1:_ Package with observability helm-chart
+Export the json and add it in `dashboards/{medic,thirdparty}`
+#### _Option 2:_ Package with application helm-chart
+Add the dashboard as a configmap and set label `grafana_dashboard=medic-observability`