注意

==可行方式 mysql-nodeport-ingress.yaml ==

初始化sql

只有容器首次启动时才会执行/docker-entrypoint-initdb.d下的文件
若非首次启动，删除挂在的data目录，再新建data

mysql配置文件my.cnf

使用configmap创建my.cnf文件，使用volumeMounts挂载绑定了configmap的volume

volumeMounts挂载绑定了configmap的volume

subPath方式使用configmap,cm的内容更新不会同步到挂在点
不使用subPath方式，更新ConfigMap后，volumeMounts挂载的Volume，大约10s左右更新

selector label

selector使用labels不使用name
svc和rc的selector都是选择pod的label，svc不选择rc的label
ingress-nginx规则基于service.name，不基于label

#检查svc端点
kubectl get endpoints svc-mysql7 -n xcrj-dev#查看ingress-controller中配置的规则
kubectl get pod -n ingress-nginx
kubectl exec -it ingress-nginx-controller-87f56f98f-ktvrf -n ingress-nginx -- /bin/bash
cd /etc/nginx
cat nginx.conf | grep mysql

nfs-server

sudo su -
mkdir -p /root/data/mysql7/init
mkdir -p /root/data/mysql7/sql
mkdir -p /root/data/mysql7/data
#cd /root/data/mysql7
#chmod 777 init
#chmod 777 sql
#chmod 777 data
#加入的内容见下
vim /etc/exports
service nfs-kernel-server restart

/etc/exports 末尾加入内容

/root/data/mysql7 *(insecure,rw,async,no_root_squash)

初始化sql

下面的sql文件需要放入nfs-server的/root/data/mysql7/init目录下

roleme.sql

DROP DATABASE IF EXISTS `roleme`;
CREATE DATABASE IF NOT EXISTS `roleme` DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_general_ci;
use `roleme`;SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;-- ----------------------------
-- Table structure for roles
-- ----------------------------
DROP TABLE IF EXISTS `roles`;
CREATE TABLE `roles`  (`id` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键',`name` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '名称',PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci ROW_FORMAT = Dynamic;-- ----------------------------
-- Records of roles
-- ----------------------------
INSERT INTO `roles` VALUES (1, 'admin');
INSERT INTO `roles` VALUES (2, 'common');
INSERT INTO `roles` VALUES (3, 'visitor');SET FOREIGN_KEY_CHECKS = 1;

userme.sql

/*Navicat Premium Data TransferSource Server         : ddddSource Server Type    : MySQLSource Server Version : 50741Source Host           : localhost:49157Source Schema         : usermeTarget Server Type    : MySQLTarget Server Version : 50741File Encoding         : 65001Date: 24/02/2023 23:14:37
*/
DROP DATABASE IF EXISTS `userme`;
CREATE DATABASE IF NOT EXISTS `userme` DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_general_ci;
use `userme`;SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;-- ----------------------------
-- Table structure for users
-- ----------------------------
DROP TABLE IF EXISTS `users`;
CREATE TABLE `users`  (`id` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT COMMENT '主键',`username` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL COMMENT '用户名',`password` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL DEFAULT NULL COMMENT '密码',PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 4 CHARACTER SET = utf8mb4 COLLATE = utf8mb4_bin ROW_FORMAT = Dynamic;-- ----------------------------
-- Records of users
-- ----------------------------
INSERT INTO `users` VALUES (1, 'xcrj1', 'pwd1');
INSERT INTO `users` VALUES (2, 'xcrj2', 'pwd2');
INSERT INTO `users` VALUES (3, 'xcrj3', 'pwd3');SET FOREIGN_KEY_CHECKS = 1;

mysql-nodeport-ingress.yaml

#将mysql-nodeport-ingress.yaml文件放入master节点目录
kubectl apply -f mysql-nodeport-ingress.yaml
#修改windows下的 C:\Windows\System32\drivers\etc\hosts 文件
#加入 192.168.66.20 mysql.xcrj.com
#使用 命令行 连接测试 IP方式 域名方式
mysql -h192.168.66.20 -P32762 -uroot -p
mysql -hmysql.xcrj.com -P32762 -uroot -p
#使用 navicat 连接测试 IP方式 域名方式

mysql-nodeport-ingress.yaml

---
apiVersion: v1
kind: Namespace
metadata:name: xcrj-dev
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: xcrj-devname: pv-mysql7
spec:capacity:storage: 2Gi accessModes:- ReadWriteMany persistentVolumeReclaimPolicy: Retain storageClassName: nfsnfs: path: /root/data/mysql7server: 192.168.66.30
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:namespace: xcrj-devname: pvc-mysql7
spec:accessModes:- ReadWriteManystorageClassName: nfs  resources:requests:storage: 2Gi
---
kind: ConfigMap
apiVersion: v1
metadata:namespace: xcrj-devname: cm-mysql7
data:my.cnf: |[client]default-character-set=utf8mb4[mysql]default-character-set=utf8mb4[mysqld]pid-file        = /var/run/mysqld/mysqld.pidsocket          = /var/run/mysqld/mysqld.sockdatadir         = /var/lib/mysqlcharacter-set-server = utf8mb4collation-server = utf8mb4_unicode_ciinit_connect='SET NAMES utf8mb4'skip-character-set-client-handshake = true#log-bin=bin-logmax_connections=5000default-time-zone='+8:00'
---
apiVersion: v1
kind: ReplicationController
metadata:namespace: xcrj-devname: rc-mysql7
spec:replicas: 1selector:app: lmysql7 #选择pod的labeltemplate:metadata:name: mysql7labels:app: lmysql7spec:containers:- name: mysql7image: mysql:5.7imagePullPolicy: IfNotPresentports:- containerPort: 3306env:- name: MYSQL_ROOT_PASSWORDvalue: xcrj_mysql_pwdvolumeMounts: # 1个pvc下 n个子路径- name: data-mysqlsubPath: datamountPath: /var/lib/mysql- name: data-mysqlsubPath: sqlmountPath: /sql- name: data-mysqlsubPath: initmountPath: /docker-entrypoint-initdb.d #docker容器首次执行时会运行这个目录下的所有sql文件- name: cnf-mysql #volume使用configmap#subPath: my.cnf #subPath方式使用configmap,cm的内容更新不会同步到挂在点#mountPath: /etc/mysql/conf.d/my.cnfmountPath: /etc/mysql/conf.d #conf.d是目录，不使用subPath方式，更新ConfigMap后，volumeMounts挂载的Volume，大约10s左右更新volumes:- name: data-mysqlpersistentVolumeClaim:claimName: pvc-mysql7 # pvc名称- name: cnf-mysqlconfigMap:name: cm-mysql7items:- key: my.cnf #自定义keypath: my.cnf #configMap下文件名
---
apiVersion: v1
kind: Service
metadata:namespace: xcrj-devname: svc-mysql7
spec:type: NodePortselector:app: lmysql7 #根据labels选择，注意 svc选择pod的label不是rc的labelports: - name: port-tcpprotocol: TCP #默认TCPport: 3306 #k8s网络内部端口映射targetPort: 3306 #需要暴露的目标端口nodePort: 32762 #有效范围30000-32767
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:namespace: xcrj-devname: ingress-mysql7
spec:rules:- host: mysql.xcrj.comhttp:paths:- path: / pathType: Prefixbackend:service:name: svc-mysql7port:number: 32762 #代理到nodePort

mysql-clusterIp-ingress.yaml

ReplicationController 引用clusterIp svc

todo(ingress-nginx-controller 32676 mysql.nacos.com 无法正常访问)
原因：ingress-nginx-controller 支持 headless svc http转发，支持nodeport svc tcp转发，不支持 headless svc tcp转发，不支持clusterIp svc tcp转发

---
apiVersion: v1
kind: Namespace
metadata:name: xcrj-dev
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: xcrj-devname: pv-mysql7
spec:capacity:storage: 2Gi accessModes:- ReadWriteMany persistentVolumeReclaimPolicy: Retain storageClassName: nfsnfs: path: /root/data/mysql7server: 192.168.66.30
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:namespace: xcrj-devname: pvc-mysql7
spec:accessModes:- ReadWriteManystorageClassName: nfs  resources:requests:storage: 2Gi
---
kind: ConfigMap
apiVersion: v1
metadata:namespace: xcrj-devname: cm-mysql7
data:my.cnf: |[client]default-character-set=utf8mb4[mysql]default-character-set=utf8mb4[mysqld]pid-file        = /var/run/mysqld/mysqld.pidsocket          = /var/run/mysqld/mysqld.sockdatadir         = /var/lib/mysqlcharacter-set-server = utf8mb4collation-server = utf8mb4_unicode_ciinit_connect='SET NAMES utf8mb4'skip-character-set-client-handshake = true#log-bin=bin-logmax_connections=5000default-time-zone='+8:00'
---
apiVersion: v1
kind: ReplicationController
metadata:namespace: xcrj-devname: rc-mysql7
spec:replicas: 1selector:app: lmysql7 #选择pod的labeltemplate:metadata:name: mysql7labels:app: lmysql7spec:containers:- name: mysql7image: mysql:5.7imagePullPolicy: IfNotPresentports:- containerPort: 3306env:- name: MYSQL_ROOT_PASSWORDvalue: xcrj_mysql_pwdvolumeMounts: # 1个pvc下 n个子路径- name: data-mysqlsubPath: datamountPath: /var/lib/mysql- name: data-mysqlsubPath: sqlmountPath: /sql- name: data-mysqlsubPath: initmountPath: /docker-entrypoint-initdb.d #docker容器首次执行时会运行这个目录下的所有sql文件- name: cnf-mysql #volume使用configmap#subPath: my.cnf #subPath方式使用configmap,cm的内容更新不会同步到挂在点#mountPath: /etc/mysql/conf.d/my.cnfmountPath: /etc/mysql/conf.d #conf.d是目录，不使用subPath方式，更新ConfigMap后，volumeMounts挂载的Volume，大约10s左右更新volumes:- name: data-mysqlpersistentVolumeClaim:claimName: pvc-mysql7 # pvc名称- name: cnf-mysqlconfigMap:name: cm-mysql7items:- key: my.cnf #自定义keypath: my.cnf #configMap下文件名
---
apiVersion: v1
kind: Service
metadata:namespace: xcrj-devname: svc-mysql7
spec:type: ClusterIP #默认ClusterIPselector:app: lmysql7 #根据labels选择，注意 svc选择pod的label不是rc的labelports: - name: port-tcpprotocol: TCP #默认TCPport: 32763 #内部端口映射targetPort: 3306 #目标端口
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:namespace: xcrj-devname: ingress-mysql7
spec:rules:- host: mysql.xcrj.comhttp:paths:- path: / pathType: Prefixbackend:service:name: svc-mysql7port:number: 32763

mysql-headless-ingress.yaml

StatefulSet 引用headless svc

---
apiVersion: v1
kind: Namespace
metadata:name: xcrj-dev
---
apiVersion: v1
kind: PersistentVolume
metadata:namespace: xcrj-devname: pv-mysql7
spec:capacity:storage: 2Gi accessModes:- ReadWriteMany persistentVolumeReclaimPolicy: Retain storageClassName: nfsnfs: path: /root/data/mysql7server: 192.168.66.30
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:namespace: xcrj-devname: pvc-mysql7
spec:accessModes:- ReadWriteManystorageClassName: nfs  resources:requests:storage: 2Gi
---
kind: ConfigMap
apiVersion: v1
metadata:namespace: xcrj-devname: cm-mysql7
data:my.cnf: |[client]default-character-set=utf8mb4[mysql]default-character-set=utf8mb4[mysqld]pid-file        = /var/run/mysqld/mysqld.pidsocket          = /var/run/mysqld/mysqld.sockdatadir         = /var/lib/mysqlcharacter-set-server = utf8mb4collation-server = utf8mb4_unicode_ciinit_connect='SET NAMES utf8mb4'skip-character-set-client-handshake = true#log-bin=bin-logmax_connections=5000default-time-zone='+8:00'
---
apiVersion: v1
kind: Service
metadata:namespace: xcrj-devname: svc-mysql7annotations:service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
spec:selector:app: lmysql7clusterIP: Noneports:- port: 3306protocol: TCPname: tcp-mysqltargetPort: 3306
---
apiVersion: apps/v1
kind: StatefulSet
metadata:namespace: xcrj-devname: ss-mysql7
spec:serviceName: svc-mysql7 #statefulset引用headless svcreplicas: 1selector:matchLabels: app: lmysql7 #选择pod的labeltemplate:metadata:name: mysql7labels:app: lmysql7spec:containers:- name: mysql7image: mysql:5.7imagePullPolicy: IfNotPresentports:- containerPort: 3306env:- name: MYSQL_ROOT_PASSWORDvalue: xcrj_mysql_pwdvolumeMounts: # 1个pvc下 n个子路径- name: data-mysqlsubPath: datamountPath: /var/lib/mysql- name: data-mysqlsubPath: sqlmountPath: /sql- name: data-mysqlsubPath: initmountPath: /docker-entrypoint-initdb.d #docker容器首次执行时会运行这个目录下的所有sql文件- name: cnf-mysql #volume使用configmap#subPath: my.cnf #subPath方式使用configmap,cm的内容更新不会同步到挂在点#mountPath: /etc/mysql/conf.d/my.cnfmountPath: /etc/mysql/conf.d #conf.d是目录，不使用subPath方式，更新ConfigMap后，volumeMounts挂载的Volume，大约10s左右更新volumes:- name: data-mysqlpersistentVolumeClaim:claimName: pvc-mysql7 # pvc名称- name: cnf-mysqlconfigMap:name: cm-mysql7items:- key: my.cnf #自定义keypath: my.cnf #configMap下文件名
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:namespace: xcrj-devname: ingress-mysql7annotations:kubernetes.io/ingress.class: nginx
spec:rules: - host: mysql.xcrj.comhttp:paths:- path: /pathType: Prefixbackend:service:name: svc-mysql7port:number: 3306

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k8s部署mysql5.7单机版并初始化sql，NodePort/ClusterIP/Headless和Ingress发布

注意

nfs-server

初始化sql

mysql-nodeport-ingress.yaml

mysql-clusterIp-ingress.yaml

mysql-headless-ingress.yaml

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