部署 ElasticSearch（8.x）
ES 8.7
部署说明：通过 nodeSelector 固定到 worker3 节点上。并使用 worker3 上的原生文件系统目录 /.data
部署文件说明
- 通过环境变量指定 Mysql 密码等
- 通过 config 定制
mysqld.conf的配置， 比如0.0.0.0外部网络访问 - 有使用 LoadBalancer 类型的 Service， 通过
externalIPs指定外部 IP - 通过 hostPath 挂载宿主机的目录， 用于持久化数据提升IO性能
- 部署于
middleware命名空间 - 镜像使用
registry.cn-hongkong.aliyuncs.com/jansora/mysql:8.0.35， 拷贝自官方镜像，无改动
apiVersion: apps/v1
kind: StatefulSet
metadata:
name: mysql-1
namespace: middleware
spec:
selector:
matchLabels:
app: mysql-1
replicas: 1
template:
metadata:
labels:
app: mysql-1
spec:
nodeSelector:
worker: worker3
containers:
- name: mysql-1
image: registry.cn-hongkong.aliyuncs.com/jansora/mysql:8.0.35
imagePullPolicy: IfNotPresent
env:
- name: MYSQL_ROOT_HOST
value: '%'
- name: MYSQL_ROOT_PASSWORD
value: '256dac22d6458e094ff03d79d30f6ad2'
ports:
- containerPort: 3306
volumeMounts:
- name: host-path
subPath: 'mysql/mysql-1/data'
mountPath: "/var/lib/mysql"
- name: config-volume
mountPath: /etc/mysql/conf.d/mysqld.cnf # 具体路径请参考官方文档
subPath: mysqld.cnf
volumes:
- name: config-volume
configMap:
name: mysql-config
- name: host-path
hostPath:
path: /.data/
type: DirectoryOrCreate
serviceName: mysql-1-service
---
# 创建 Service 由 kubernetes 来对多个 nameserver 做负载均衡
apiVersion: v1
kind: Service
metadata:
labels:
app: mysql-1
name: mysql-1-service
namespace: middleware
spec:
type: LoadBalancer
externalIPs:
- 192.168.36.12
ports:
- port: 3306
protocol: TCP
selector:
app: mysql-1
---
# 创建 configmap
apiVersion: v1
kind: ConfigMap
metadata:
name: mysql-config
namespace: middleware
data:
mysqld.cnf: |
[mysqld]
lower_case_table_names=1
bind-address = 0.0.0.0
max_connections = 500