[caasp-beta] How-To: Container Monitoring and Performance Analysis

[Alejandro Bonilla]

Hi Beta Testers -

(Before you proceed, please refer to my previous e-mail, "A few How-To guides coming your way”)

—

We need to have some way to understand how/what our cluster is doing around resource consumption (CPU, Mem, Disk, Network, etc). One option is Heapster.

Heapster enables Container Cluster Monitoring and Performance Analysis, using InfluxDB and Grafana.

These steps help deploy Grafana+InfluxDB+Heapster. The Grafana Dashboard helps visualize the data collected into InfluxDB.
[kube-dns is required for proper DNS resolution, an a LoadBalancer or my previous e-mail on using an LB should help to facilitate access to the dashboard]

1. Git Clone the repo that contains the config files

	git clone https://github.com/kubernetes/heapster.git

2. Open/modify the heapster deployment so that it uses the FQDN vs short name, as our certificates are only set for full names (Changing in an upcoming release).

	cd heapster
	vi deploy/kube-config/influxdb/heapster-deployment.yaml

3. Modify line 20 to look like

	- --source=kubernetes:https://kubernetes.default.svc.cluster.local

4. Deploy All the Services and Deployments

	kubectl create -f deploy/kube-config/influxdb/

5. Deploy a configmap to expose ‘monitoring-grafana’ service via the LoadBalancer. [This depends on kube-loadbalancer-rc from a previous e-mail]

	Save the attached file
	kubectl create -f grafana-configmap-dashboard.yaml

6. Get the IP of the LoadBalancer for service ‘monitoring-grafana’ defined as 'grafana-configmap-dashboard-svc'

	kubectl get configmap grafana-configmap-dashboard-svc -o yaml

7. Access the Grafana Dashboard via the provided bind-ip:

If ever asked for a username/password, it should be root:root

Please let me know if anything went wrong.. or right.

Thanks,

Alejandro Bonilla
SUSE
Technical Strategist – North America
abonilla at suse.com
(484)426-7722
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