您必须为mysql创建服务,并在tomcat服务中使用该服务名,这样tomcat pod才能与mysql服务器进行通信。
apiVersion: v1
kind: Service
metadata:
name: mysql
spec:
ports:
- port: 3306
selector:
app: mysql
clusterIP: None
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql
spec:
selector:
matchLabels:
app: mysql
strategy:
type: Recreate
template:
metadata:
labels:
app: mysql
spec:
containers:
- image: mysql:5.6
name: mysql
env:
- name: MYSQL_ROOT_PASSWORD
value: <value>
ports:
- containerPort: 3306
name: mysql
volumeMounts:
- name: mysql-persistent-storage
mountPath: /var/lib/mysql
volumes:
- name: mysql-persistent-storage
persistentVolumeClaim:
claimName: mysql-pv-claim
现在部署tomcat:
apiVersion: v1
kind: Service
metadata:
name: tomcat
labels:
app: tomcat
spec:
ports:
- name: http
port: 80
targetPort: 80
- name: https
port: 443
targetPort: 443
selector:
app: tomcat
tier: frontend
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcat
labels:
app: tomcat
spec:
selector:
matchLabels:
app: tomcat
tier: frontend
strategy:
type: Recreate
template:
metadata:
labels:
app: tomcat
tier: frontend
spec:
containers:
- image: <image location>
name: tomcat
env:
- name: DB_PORT_3306_TCP_ADDR
value: mysql #service name of mysql
- name: DB_ENV_MYSQL_PASSWORD
value: <Mysql password>
- name: DB_ENV_MYSQL_USER
value: <mysql user>
- name: DB_ENV_MYSQL_DATABASE
value: <database name>
- name: DB_ENV_MYSQL_PASSWORD
value: <Mysql password>
ports:
- containerPort: 80
name: http
- containerPort: 443
name: https
volumeMounts:
- name: tomcat-persistent-storage
mountPath: /var/data
volumes:
- name: tomcat-persistent-storage
persistentVolumeClaim:
claimName: tomcat-pv-claim
