I have a simple Statefulset with 3 replicas/pods.
the pg-master-0 is the actual master and the rest (pg-master-1 and pg-master2) are standby servers or slaves.
Please ignore the naming i'll be working on that soon
So I have 2 Services
Question : In the current NodePort service if i goto or connect to IP:30006 I am connecting to pg-master-0. Is there a way for me to create a separate service like a LoadBalancer that handles my request for ONLY pg-master-1 and pg-mastr-2 actually all replicas except on the pg-master-0?
I'm planning to create separate service for them but the problem is they all have the same labels
apiVersion: v1
kind: Service
metadata:
name: pg-master
labels:
app: pg-master
spec:
type: NodePort
ports:
- port: 5432
name: pg-port
selector:
app: pg-master
---
apiVersion: v1
kind: Service
metadata:
name: pg-master-headless
labels:
app: pg-master-headless
spec:
clusterIP: None
ports:
- port: 5431
name: pg-port-headless
targetPort: 5432
selector:
app: pg-master
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: pg-master
spec:
replicas: 1
serviceName: pg-master-headless
selector:
matchLabels:
app: pg-master
template:
metadata:
labels:
app: pg-master
spec:
containers:
- name: pg-master
image: mjayson/ms-rpi-pg
env:
- name: POSTGRES_USER
value: postgres
- name: POSTGRES_PASSWORD
value: postgres
ports:
- containerPort: 5432
name: http-port
volumeMounts:
- name: pv-data
mountPath: /var/lib/postgresql/data
volumes:
- name: pv-data
persistentVolumeClaim:
claimName: master-pv-claim
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: pg-slave
spec:
replicas: 1
selector:
matchLabels:
app: pg-slave
template:
metadata:
labels:
app: pg-slave
spec:
containers:
- name: pg-slave
image: mjayson/ms-rpi-pg
env:
- name: POSTGRES_USER
value: postgres
- name: POSTGRES_PASSWORD
value: postgres
ports:
- containerPort: 5432
name: http-port
volumeMounts:
- name: pv-data
mountPath: /var/lib/postgresql/data
volumes:
- name: pv-data
persistentVolumeClaim:
claimName: slave-pv-claim
