所以免费爱做网站,建站公司互橙知乎,常熟企业建设网站公司,手机软件开发培训班Kubernetes上搭建nacos集群 环境准备Kubernetes准备数据库准备 部署nacos集群官方镜像地址创建configmap创建部署文件根据yaml资源清单文件部署nacos 环境准备
Kubernetes准备
你需要准备一个Kubernetes集群#xff0c;如图我的集群已经准备完毕#xff1a;
数据库准备
… Kubernetes上搭建nacos集群 环境准备Kubernetes准备数据库准备 部署nacos集群官方镜像地址创建configmap创建部署文件根据yaml资源清单文件部署nacos 环境准备
Kubernetes准备
你需要准备一个Kubernetes集群如图我的集群已经准备完毕
数据库准备
nacos可以将配置文件存储到数据库当中所以我们要先准备一个拥有nacos数据表结构的数据库这样的数据库镜像我已经准备好了当然你也可以自己制作这个镜像
registry.cn-shenzhen.aliyuncs.com/xiaohh-docker/nacos-mysql:2.0.4我之前写过一篇Kubernetes上安装数据库的文章https://blog.csdn.net/m0_51510236/article/details/132482351这里我就直接上yaml文件了注意镜像使用的是上面提到的带有nacos配置表结构的镜像
apiVersion: v1
kind: Namespace
metadata:name: deploy-test
spec: {}
status: {}---apiVersion: v1
kind: PersistentVolume
metadata:name: deploy-mysql-nfs-pvnamespace: deploy-test
spec:capacity:storage: 1GiaccessModes:- ReadWriteManynfs:# 注意修改你的nfs服务器地址和目录server: 192.168.1.160path: /data/nfs/nacos-mysqlstorageClassName: nfs---apiVersion: v1
kind: PersistentVolumeClaim
metadata:name: deploy-mysql-nfs-pvcnamespace: deploy-test
spec:accessModes:- ReadWriteManystorageClassName: nfsresources:requests:storage: 1GivolumeName: deploy-mysql-nfs-pv---apiVersion: v1
data:# 密码为root具体密码设置可参考我上篇文章mysql_root_password: cm9vdA
kind: Secret
metadata:name: mysql-passwordnamespace: deploy-test---apiVersion: v1
kind: Service
metadata:name: deploy-mysql-svcnamespace: deploy-testlabels:app: mysql
spec:ports:- port: 3306name: mysqltargetPort: 3306nodePort: 30306selector:app: mysqltype: NodePortsessionAffinity: ClientIP---apiVersion: apps/v1
kind: StatefulSet
metadata:name: deploy-mysqlnamespace: deploy-test
spec:selector:matchLabels:app: mysqlserviceName: deploy-mysql-svcreplicas: 1template:metadata:labels:app: mysqlspec:terminationGracePeriodSeconds: 10containers:- args:- --character-set-serverutf8mb4- --collation-serverutf8mb4_unicode_ci- --lower_case_table_names1- --default-time_zone8:00name: mysqlimage: registry.cn-shenzhen.aliyuncs.com/xiaohh-docker/nacos-mysql:2.0.4ports:- containerPort: 3306name: mysqlvolumeMounts:- name: mysql-datamountPath: /var/lib/mysqlenv:- name: MYSQL_ROOT_PASSWORDvalueFrom:secretKeyRef:key: mysql_root_passwordname: mysql-passwordvolumes:- name: mysql-datapersistentVolumeClaim:claimName: deploy-mysql-nfs-pvc查看创建结果
kubectl get all -o wide -n deploy-test发现容器以及运行
进入容器当中查看表结构
kubectl exec -itn deploy-test pod/deploy-mysql-0 -- mysql -uroot -p查看结果目前已经拥有这样的表结构
部署nacos集群
我们部署mysql的时候创建了一个 deploy-test 命名空间部署nacos的时候将nacos部署到这个命名空间当中。
官方镜像地址
nacos官方提供的镜像地址https://hub.docker.com/r/nacos/nacos-server在当中我们可以看到有那么多环境变量配置
创建configmap
上面那张图片中我们要用到这么几个参数
参数名描述MODEnacos启动模式cluster为集群模式standalone为单节点模式NACOS_SERVERSnacos集群的服务器地址格式为 ip1:port ip2:port 多个用空格隔开SPRING_DATASOURCE_PLATFORMnacos使用的数据库只支持mysqlMYSQL_SERVICE_HOSTmysql服务器地址MYSQL_SERVICE_PORTmysql的端口默认为3306MYSQL_SERVICE_DB_NAMEnacos配置的数据库名我们创建mysql时配置的数据库名为nacos_configMYSQL_SERVICE_USERmysql的用户名MYSQL_SERVICE_PASSWORDmysql的密码MYSQL_DATABASE_NUMmysql数据库的数量默认为1MYSQL_SERVICE_DB_PARAMmysql连接字符串后面的参数默认characterEncodingutf8connectTimeout1000socketTimeout3000autoReconnecttrueuseSSLfalseJVM_XMSjvm永久区最小大小默认1gJVM_XMXjvm永久区最大大小默认1gJVM_XMNjvm新生区大小默认512m
我们根据上面参数创建一个configmap执行下面代码获取创建configmap的k8s资源清单文件yaml
kubectl create configmap nacos-deploy-config -n deploy-test \
--from-literalmodecluster \
--from-literalnacos-serversdeploy-nacos-0.deploy-nacos-svc.deploy-test.svc.cluster.local:8848 deploy-nacos-1.deploy-nacos-svc.deploy-test.svc.cluster.local:8848 \
--from-literalspring-datasource-platformmysql \
--from-literalmysql-service-hostdeploy-mysql-0.deploy-mysql-svc.deploy-test.svc.cluster.local \
--from-literalmysql-service-port3306 \
--from-literalmysql-service-db-namenacos_config \
--from-literalmysql-service-userroot \
--from-literalmysql-database-num1 \
--from-literalmysql-service-db-paramcharacterEncodingutf8connectTimeout1000socketTimeout3000autoReconnecttrueuseSSLfalse \
--from-literaljvm-xms256m \
--from-literaljvm-xmx256m \
--from-literaljvm-xmn128m \
--dry-runclient -o yaml注意下面这一行
--from-literalnacos-serversdeploy-nacos-0.deploy-nacos-svc.deploy-test.svc.cluster.local:8848 deploy-nacos-1.deploy-nacos-svc.deploy-test.svc.cluster.local:8848因为我们这次只部署两个节点的集群如果你打算部署多个节点那么你往后面加即可。同时这行命令我们也没设置数据库的密码这是因为我们创建mysql的时候就创建了一个密码的secret待会直接使用即可。我们看这行命令的执行结果
发现成功创建了一个k8s的configmap资源清单文件文件内容
apiVersion: v1
data:jvm-xmn: 128mjvm-xms: 256mjvm-xmx: 256mmode: clustermysql-database-num: 1mysql-service-db-name: nacos_configmysql-service-db-param: characterEncodingutf8connectTimeout1000socketTimeout3000autoReconnecttrueuseSSLfalsemysql-service-host: deploy-mysql-0.deploy-mysql-svc.deploy-test.svc.cluster.localmysql-service-port: 3306mysql-service-user: rootnacos-servers: deploy-nacos-0.deploy-nacos-svc.deploy-test.svc.cluster.local:8848deploy-nacos-1.deploy-nacos-svc.deploy-test.svc.cluster.local:8848spring-datasource-platform: mysql
kind: ConfigMap
metadata:name: nacos-deploy-confignamespace: deploy-test先将这个yaml保存下来以供接下来使用
创建部署文件
部署文件内容
apiVersion: v1
kind: Service
metadata:name: deploy-nacos-svcnamespace: deploy-testlabels:app: nacos
spec:ports:- port: 8848name: nacostargetPort: 8848nodePort: 30848selector:app: nacostype: NodePortsessionAffinity: ClientIP---apiVersion: apps/v1
kind: StatefulSet
metadata:name: deploy-nacosnamespace: deploy-test
spec:selector:matchLabels:app: nacosserviceName: deploy-nacos-svcreplicas: 2template:metadata:labels:app: nacosspec:terminationGracePeriodSeconds: 10containers:- name: nacos# 如果能拉取到dockerhub上的镜像就用这个# image: docker.io/nacos/nacos-server:v2.0.4# 拉取不到dockerhub上的镜像就用我推送到阿里云上的nacos官方镜像image: registry.cn-shenzhen.aliyuncs.com/xiaohh-docker/nacos-server:v2.0.4ports:- containerPort: 8848name: nacosenv: # 引用各类环境变量为nacos做配置注意大部分引用configmap只有数据库密码引用的创建mysql时候的secret- name: JVM_XMNvalueFrom:configMapKeyRef:key: jvm-xmnname: nacos-deploy-config- name: JVM_XMSvalueFrom:configMapKeyRef:key: jvm-xmsname: nacos-deploy-config- name: JVM_XMXvalueFrom:configMapKeyRef:key: jvm-xmxname: nacos-deploy-config- name: MODEvalueFrom:configMapKeyRef:key: modename: nacos-deploy-config- name: MYSQL_DATABASE_NUMvalueFrom:configMapKeyRef:key: mysql-database-numname: nacos-deploy-config- name: MYSQL_SERVICE_DB_NAMEvalueFrom:configMapKeyRef:key: mysql-service-db-namename: nacos-deploy-config- name: MYSQL_SERVICE_DB_PARAMvalueFrom:configMapKeyRef:key: mysql-service-db-paramname: nacos-deploy-config- name: MYSQL_SERVICE_HOSTvalueFrom:configMapKeyRef:key: mysql-service-hostname: nacos-deploy-config- name: MYSQL_SERVICE_PASSWORDvalueFrom:secretKeyRef:key: mysql_root_passwordname: mysql-password- name: MYSQL_SERVICE_PORTvalueFrom:configMapKeyRef:key: mysql-service-portname: nacos-deploy-config- name: MYSQL_SERVICE_USERvalueFrom:configMapKeyRef:key: mysql-service-username: nacos-deploy-config- name: NACOS_SERVERSvalueFrom:configMapKeyRef:key: nacos-serversname: nacos-deploy-config- name: SPRING_DATASOURCE_PLATFORMvalueFrom:configMapKeyRef:key: spring-datasource-platformname: nacos-deploy-config根据yaml资源清单文件部署nacos
根据上面步骤我们得到了完整的 deploy-nacos.yaml 文件内容
apiVersion: v1
data:jvm-xmn: 128mjvm-xms: 256mjvm-xmx: 256mmode: clustermysql-database-num: 1mysql-service-db-name: nacos_configmysql-service-db-param: characterEncodingutf8connectTimeout1000socketTimeout3000autoReconnecttrueuseSSLfalsemysql-service-host: deploy-mysql-0.deploy-mysql-svc.deploy-test.svc.cluster.localmysql-service-port: 3306mysql-service-user: rootnacos-servers: deploy-nacos-0.deploy-nacos-svc.deploy-test.svc.cluster.local:8848deploy-nacos-1.deploy-nacos-svc.deploy-test.svc.cluster.local:8848spring-datasource-platform: mysql
kind: ConfigMap
metadata:name: nacos-deploy-confignamespace: deploy-test---apiVersion: v1
kind: Service
metadata:name: deploy-nacos-svcnamespace: deploy-testlabels:app: nacos
spec:ports:- port: 8848name: nacostargetPort: 8848nodePort: 30848selector:app: nacostype: NodePortsessionAffinity: ClientIP---apiVersion: apps/v1
kind: StatefulSet
metadata:name: deploy-nacosnamespace: deploy-test
spec:selector:matchLabels:app: nacosserviceName: deploy-nacos-svcreplicas: 2template:metadata:labels:app: nacosspec:terminationGracePeriodSeconds: 10containers:- name: nacosimage: registry.cn-shenzhen.aliyuncs.com/xiaohh-docker/nacos-server:v2.0.4ports:- containerPort: 8848name: nacosenv:- name: JVM_XMNvalueFrom:configMapKeyRef:key: jvm-xmnname: nacos-deploy-config- name: JVM_XMSvalueFrom:configMapKeyRef:key: jvm-xmsname: nacos-deploy-config- name: JVM_XMXvalueFrom:configMapKeyRef:key: jvm-xmxname: nacos-deploy-config- name: MODEvalueFrom:configMapKeyRef:key: modename: nacos-deploy-config- name: MYSQL_DATABASE_NUMvalueFrom:configMapKeyRef:key: mysql-database-numname: nacos-deploy-config- name: MYSQL_SERVICE_DB_NAMEvalueFrom:configMapKeyRef:key: mysql-service-db-namename: nacos-deploy-config- name: MYSQL_SERVICE_DB_PARAMvalueFrom:configMapKeyRef:key: mysql-service-db-paramname: nacos-deploy-config- name: MYSQL_SERVICE_HOSTvalueFrom:configMapKeyRef:key: mysql-service-hostname: nacos-deploy-config- name: MYSQL_SERVICE_PASSWORDvalueFrom:secretKeyRef:key: mysql_root_passwordname: mysql-password- name: MYSQL_SERVICE_PORTvalueFrom:configMapKeyRef:key: mysql-service-portname: nacos-deploy-config- name: MYSQL_SERVICE_USERvalueFrom:configMapKeyRef:key: mysql-service-username: nacos-deploy-config- name: NACOS_SERVERSvalueFrom:configMapKeyRef:key: nacos-serversname: nacos-deploy-config- name: SPRING_DATASOURCE_PLATFORMvalueFrom:configMapKeyRef:key: spring-datasource-platformname: nacos-deploy-config接下来执行这行命令开始部署
kubectl apply -f deploy-nacos.yaml查看执行结果
执行这行命令查看部署结果
kubectl get pod -o wide -n deploy-test执行后的结果可以看到两个nacos节点部署成功
执行这行命令查看nacos暴露的nodeport端口
kubectl get svc -o wide -n deploy-test可以看到端口为 30848
我们可以通过任何一个Kubernetes节点的IP地址加上这个端口访问nacos
输入默认的用户名和密码 nacos/nacos 即可登陆到首页
我们来到 集群管理-节点管理 可以看到两个节点都为up状态
接下来我们来到 配置管理-配置列表 点击 新增一个配置
我们先随便新增一个yaml配置文件
点击下面的发布之后查看数据库
数据库里面已经新增了这个配置的数据。Kubernetes集群里面安装nacos集群就已经安装好了。
