https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/
For Reference
https://kubernetes.io/docs/tutorials/stateful-application/mysql-wordpress-persistent-volume/
Add resource configs for MySQL and WordPress
The following manifest describes a single-instance MySQL Deployment. The MySQL
container mounts the PersistentVolume at /var/lib/mysql. The MYSQL_ROOT_PASSWORD
environment variable sets the database password from the Secret.
apiVersion: v1
kind: Service
metadata:
name: wordpress-mysql
labels:
app: wordpress
spec:
ports:
- port: 3306
selector:
app: wordpress
tier: mysql
clusterIP: None
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pv-claim
labels:
app: wordpress
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 20Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: wordpress-mysql
labels:
app: wordpress
spec:
selector:
matchLabels:
app: wordpress
tier: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: wordpress
tier: mysql
spec:
containers:
- image: mysql:8.0
name: mysql
env:
- name: MYSQL_ROOT_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-pass
key: password
- name: MYSQL_DATABASE
value: wordpress
- name: MYSQL_USER
value: wordpress
- name: MYSQL_PASSWORD
valueFrom:
secretKeyRef:
name: mysql-pass
key: password
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: mysql-pv-claim
For CSI
https://kubernetes.io/blog/2019/01/15/container-storage-interface-ga/
List of CSI Drivers
https://kubernetes-csi.github.io/docs/drivers.html
For reference
https://ceph.io/en/
[root@master01 ~]# kubectl get pods
[root@master01 ~]# kubectl delete deploy nginx-deployment
[root@master01 ~]# ls
[root@master01 ~]# cat pod.yml
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