I have an application that requires a configurable number of master nodes and replicas. Is there any way to dynamically generate a n stateful sets where n is the number of master nodes I have? The number of master nodes is currently set in values.yaml.
Yes, it is possible with until function.
values.yaml:
masterCount: 5templates/statefulset.yaml:
{{ range $k, $v := until ( .Values.masterCount | int) }}
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: nginx-{{ $v }}
spec:
serviceName: "nginx-{{ $v }}"
replicas: 3
selector:
matchLabels:
app: nginx-{{ $v }}
template:
metadata:
labels:
app: nginx-{{ $v }}
spec:
containers:
- name: nginx
image: k8s.gcr.io/nginx-slim:0.8
ports:
- containerPort: 80
name: web
volumeMounts:
- name: www
mountPath: /usr/share/nginx/html
{{ end }}