第三方镜像部署
6.1 数据库mysql配置(有状态部署)
采用有状态部署mysql，mysql对主机名和数据库存储目录要求
# cat mysql.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: app-test-mysql
namespace: test
spec:
serviceName: app-test-mysql
selector:
matchLabels:
app: app-test-mysql
replicas: 1
template:
metadata:
name: app-test-mysql
namespace: test
labels:
app: app-test-mysql
spec:
containers:
- name: mysql
image: harbor.demo.com/app/mysql:latest
#image: harbor.demo.com/web/busybox:v0.1
imagePullPolicy: IfNotPresent
volumeMounts:
- name: mysql-data
mountPath: /var/lib/mysql
ports:
- name: port-test-01
containerPort: 3306
protocol: TCP
env:
- name: MYSQL_ROOT_PASSWORD
value: 12qwaszx
volumeClaimTemplates:
- metadata:
name: mysql-data
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: csi-rbd-sc
resources:
requests:
storage: 5Gi
---
apiVersion: v1
kind: Service
metadata:
labels:
app: app-test-mysql
name: app-test-mysql
namespace: test
spec:
sessionAffinity: ClientIP
sessionAffinityConfig:
clientIP:
timeoutSeconds: 10800
selector:
app: app-test-mysql
ports:
- name: port01
port: 3306
targetPort: 3306
protocol: TCP
type: ClusterIP
# kubectl apply -f mysql.yaml
测试pod(mysql client)
# cat client.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: app-test
namespace: test
spec:
selector:
matchLabels:
app: app-test
template:
metadata:
name: app-test
namespace: test
labels:
app: app-test
spec:
containers:
- name: mysql-client
image: harbor.demo.com/test/testtool:v0.2
imagePullPolicy: IfNotPresent
# kubectl apply -f client.yaml
# kubectl get pod
NAME READY STATUS RESTARTS AGE
app-test-6b76f4f697-mzn7c 2/2 Running 0 22m
app-test-mysql-0 2/2 Running 0 22m
# kubectl exec pod/app-test-6b76f4f697-mzn7c -it /bin/bash
kubectl exec [POD] [COMMAND] is DEPRECATED and will be removed in a future version. Use kubectl exec [POD] -- [COMMAND] instead.
[root@app-test-6b76f4f697-mzn7c app]# mysql -u root -h app-test-mysql.test.svc.cluster.local -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 16
Server version: 8.0.33 MySQL Community Server - GPL
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| gfs |
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.00 sec)
删除pod再产生新的pod副本，数据仍然存在。