You need to first download the following files:
curl https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/influxdb/grafana.yaml > grafana.yaml
curl https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/influxdb/heapster.yaml > heapster.yaml
curl https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/influxdb/influxdb.yaml > influxdb.yaml
curl https://raw.githubusercontent.com/kubernetes/heapster/master/deploy/kube-config/rbac/heapster-rbac.yaml > heapster-rbac.yaml
Then create the following service instance of grafana, influxdb and heapster:
$ kubectl create -f grafana.yaml
deployment "monitoring-grafana" created
service "monitoring-grafana" created
$ kubectl create -f heapster.yaml
serviceaccount "heapster" created
deployment "heapster" created
service "heapster" created
$ kubectl create -f influxdb.yaml
deployment "monitoring-influxdb" created
service "monitoring-influxdb" created
$ kubectl create -f heapster-rbac.yaml
clusterrolebinding "heapster" created
Follow this tutorial for test your autoscaling pods:
https://developer.ibm.com/tutorials/autoscale-application-on-kubernetes-cluster/
Hope this helps.
EDIT: Resource request in your deployment file:
apiVersion: v1
kind: Pod
metadata:
name: frontend
spec:
containers:
- name: db
image: mysql
env:
- name: MYSQL_ROOT_PASSWORD
value: "password"
resources:
requests:
memory: "64Mi"
cpu: "250m"
limits:
memory: "128Mi"
cpu: "500m"
- name: wp
image: wordpress
resources:
requests:
memory: "64Mi"
cpu: "250m"
limits:
memory: "128Mi"
cpu: "500m"
resources and request should be there in your deployment files so that HPA can access it to autoscale.
Heapster is Deprecated in Latest Kubernetes. Fetching metrics from Heapster is deprecated as of Kubernetes 1.11.
Installing with metrics-server worked for me :
kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
Source :
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