Persistent Volume Claims
PVC, EK, user's, REQUEST, FOR, storage, hai — pod, DIRECTLY, PV, ko, REFERENCE, NAHI, karta, balki, EK, PVC, ke, ZARIYE, storage, MAANGTA, hai. Kubernetes, KHUD, EK, SUITABLE, PV, ko, PVC, se, "BIND" kar, deta hai.
YE, INDIRECTION, (PV, aur, pod, ke, BEECH, PVC) developers, ko, storage, ke, LOW-LEVEL, DETAILS, (jaise, ACTUAL, cloud, disk) se, ABSTRACT, karta hai — WO, sirf, ITNA, batate, HAIN, "kitna, SPACE, chahiye" aur, "kaunsa, ACCESS, MODE".
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: my-pvc
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 5Gi
# Pod mein PVC use karo:
volumes:
- name: data
persistentVolumeClaim:
claimName: my-pvc- PVC = pod ki taraf se storage ka request, PV ko directly reference nahi karta
- Kubernetes khud PVC ko suitable PV se bind kar deta hai
- Access modes: ReadWriteOnce, ReadOnlyMany, ReadWriteMany
StorageClass, EK, "TEMPLATE" hai, jo, batata hai, ki, PVC, request, aane, PAR, PV, kaise, AUTOMATICALLY, PROVISION, karna, hai — cloud, provider, ke, saath, INTEGRATE, hota, hai, taaki, ACTUAL, disk, AUTOMATICALLY, ban, jaaye.
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: fast-ssd
provisioner: kubernetes.io/aws-ebs
parameters:
type: gp3StatefulSets, mein, "volumeClaimTemplates" use, hota hai — YE, HAR, POD, replica, ke, liye, AUTOMATICALLY, EK, ALAG, PVC, banata hai (jaise, "data-postgres-0" "data-postgres-1") HAR, EK, ka, apna, PERSISTENT, storage.