# Nginx pod with pre provisioned storage using Exascaler CSI driver
#
# $ kubectl apply -f examples/kubernetes/nginx-persistent-volume.yaml
#


# --------------------------------------
# Exascaler CSI Driver - Storage Class
# --------------------------------------

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: exascaler-csi-file-driver-sc-nginx-persistent
provisioner: exa.csi.ddn.com
---


# ------------------------------------------
# Exascaler CSI Driver - Persistent Volume
# ------------------------------------------

apiVersion: v1
kind: PersistentVolume
metadata:
  name: exascaler-csi-file-driver-pv-nginx-persistent
  labels:
    name: exascaler-csi-file-driver-pv-nginx-persistent
spec:
  storageClassName: exascaler-csi-file-driver-sc-nginx-persistent
  accessModes:
    - ReadWriteMany
  capacity:
    storage: 1Gi
  csi:
    driver: exa.csi.ddn.com
    volumeHandle: exa1:/nginx-persistent
    volumeAttributes:         # volumeAttributes are the alternative of storageClass params for static (precreated) volumes.
      # mountOptions: ro, noflock # list of options for `mount` command
      bindMount: "false"       # Determines, whether volume will bind mounted or as a separate lustre mount.
      exaMountUid: "1001"           # Uid which will be used to access the volume in pod. Should be synced between EXA server and clients.
---


# ------------------------------------------------
# Exascaler CSI Driver - Persistent Volume Claim
# ------------------------------------------------

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: exascaler-csi-file-driver-pvc-nginx-persistent
spec:
  storageClassName: exascaler-csi-file-driver-sc-nginx-persistent
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 1Gi
  selector:
    matchLabels:
      # to create 1-1 relationship for pod - persistent volume use unique labels
      name: exascaler-csi-file-driver-pv-nginx-persistent
---


# ---------
# Nginx pod
# ---------

apiVersion: v1
kind: Pod
metadata:
  name: nginx-persistent-volume
spec:
  securityContext:
    runAsUser: 1001
  containers:
    - image: nginxinc/nginx-unprivileged
      imagePullPolicy: IfNotPresent
      name: nginx
      ports:
        - containerPort: 80
          protocol: TCP
      volumeMounts:
        - mountPath: /usr/share/nginx/html
          name: exascaler-csi-file-driver-data
  volumes:
    - name: exascaler-csi-file-driver-data
      persistentVolumeClaim:
        claimName: exascaler-csi-file-driver-pvc-nginx-persistent
        readOnly: false