I am pretty new on Kubernetes and cloud computing. I am working with bare metal servers on my home (actually virtual servers on vbox) and trying to run a stateful app with StatefulSet. I have 1 master and 2 worker nodes and I am trying to run a database application on this cluster. So each node has 1 pod and I am very confused about volumes. I use hostpath volume(code below) but volumes working separately(actually they are not synchronizing). So my 2 pods are working different(same apps but they run like 2 different servers) when I reach them.
How can I run that app in 2 synchronized pods?
I've tried to synchronized volume files between 2 slaves. I also tried to synchronize volume files with deployment. I've tried to do this with volume provisioning (persistent volume and persistent volume provisioning).
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: cloud
spec:
selector:
matchLabels:
app: cloud
serviceName: "cloud"
replicas: 2
template:
metadata:
labels:
app: cloud
spec:
containers:
- name: cloud
image: owncloud:v2
imagePullPolicy: Never
ports:
- containerPort: 80
name: web
volumeMounts:
- name: cloud-volume
mountPath: /var/www/html/
volumes:
- name: cloud-volume
hostPath:
path: /volumes/cloud/
---
kind: Service
apiVersion: v1
metadata:
name: cloud
spec:
selector:
app: cloud
type: LoadBalancer
ports:
- protocol: TCP
port: 80