This are the two yml file that I created for both master and slave
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: db-disk-master
spec:
accessModes:
- ReadWriteOnce
storageClassName: managed-premium
resources:
requests:
storage: 5Gi
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: db-disk-slave
spec:
accessModes:
- ReadWriteOnce
storageClassName: managed-premium
resources:
requests:
storage: 5GiThis is the command I used to install postgress
helm install postgresql-db \
--set persistence.existingClaim="db-disk-master"\
--set replication.slaveReplicas=1 \
--set replication.enabled=true \
--values <(echo '{
"slave": {
"extraVolumes": [
{
"name": "db-disk-slave"
}
]
}
}') \
bitnami/postgresql -n development
But when executing this in the slave node create a new volume and attaching to it without using the "db-disk-slave" volume. I want to attched the slave node into "db-disk-slave" without creating a new volume
For the Slave pod, the HELM chart allows you to set the PVC correct
{{- if .Values.slave.extraVolumes }}
{{- toYaml .Values.slave.extraVolumes | nindent 8 }}
{{- end }}to problem is in the content of the extraVolume variable
volumes: - name: volume persistentVolumeClaim: claimName: db-disk-slave
this will allow the slave pod to receive a volume form an existing PVC
Hoping to helps you out, let me know if you would have any more questions
REF:
https://docs.microsoft.com/en-us/azure/aks/azure-disks-dynamic-pv#use-the-persistent-volume
Additional from below comment:
--values <(echo '{
"slave": {
"extraVolumes": [
{
"name": "db-disk-slave"
}
]
}
}')
this needs to be updated to
--values <(echo '{
"slave": {
"extraVolumes": [
{
"name": "volume",
"persistentVolumeClaim": { "claimName": "db-disk-slave" }
}
]
}
}')
look at the reference documents https://docs.microsoft.com/en-us/azure/aks/azure-disks-dynamic-pv#use-the-persistent-volume