Shulou(Shulou.com)06/02 Report--

Deploy Nacos on Kubernetes through StatefulSets

For rapid deployment, please refer to the official website https://nacos.io/en-us/docs/use-nacos-with-kubernetes.html.

1 Rapid deployment

Git clone https://github.com/nacos-group/nacos-k8s.git cd nacos-k8schmod + x quick-startup.sh./quick-startup.sh

1.2 Service testing

Service Registration curl-X PUT 'http://cluster-ip:8848/nacos/v1/ns/instance?serviceName=nacos.naming.serviceName&ip=20.18.7.10&port=8080' Service Discovery curl-X GET' http://cluster-ip:8848/nacos/v1/ns/instances?serviceName=nacos.naming.serviceName' publish configuration curl-X POST "http://cluster-ip:8848/nacos/v1/cs/configs?dataId=nacos.cfg.dataId&group=test&content=helloWorld" get configuration curl-X GET "http://cluster-ip:8848/nacos/v1/cs/configs?dataId=nacos.cfg.dataId&group=test"

2. Deploy in NFS mode.

NFS is used to preserve data, database data and nacos data logs, etc.

Deployment in this way requires modification of the official yaml. The following is a list of available steps and yaml files for actual testing.

2.1 deploy the NFS service environment

Find a 192.168.1.10 intranet machine that can communicate with the K8s environment, deploy the nfs service on the machine, and select the appropriate disk as the shared directory.

Yum install-y nfs-utils rpcbindmkdir-p / data/nfsmkdir-p / data/mysql_master mkdir-p / data/mysql_slavevim / etc/exports/data/nfs * (insecure,rw,async,no_root_squash) / data/mysql_slave * (insecure,rw,async,no_root_squash) / data/mysql_master * (insecure,rw,async,no_root_squash) systemctl start rpcbindsystemctl start nfssystemctl enable rpcbindsystemctl enable nfs-serverexportfs-ashowmount-e

Deploy nfs on 2.2 k8s

The total amount of cd nacos-k8s/deploy/nfs/ [root@localhost nfs] # ll is 12m / r / r 1 root root 153.Oct 15 08:05 class.yaml-rw-r--r--. 1 root root 877 October 15 14:37 deployment.yaml-rw-r--r--. 1 root root 1508 October 1508: 05 rbac.yaml

2.2.1 create a rbac using the default rbac.yaml without modification, using the default namespace. If you need to deploy to a specific namespace, modify the namespace in it.

Kubectl create-f rbac.yaml

Kind: ClusterRoleapiVersion: rbac.authorization.k8s.io/v1metadata: name: nfs-client-provisioner-runnerrules:- apiGroups: [""] resources: ["persistentvolumes"] verbs: ["get", "list", "watch", "create", "delete"]-apiGroups: [""] resources: ["persistentvolumeclaims"] verbs: ["get", "list", "watch" "update"]-apiGroups: [""] resources: ["endpoints"] verbs: ["get", "list", "watch", "create", "update", "patch"]-apiGroups: ["storage.k8s.io"] resources: ["storageclasses"] verbs: ["get", "list", "watch"]-apiGroups: [""] resources: ["events"] verbs: ["create", "update" "patch"]-kind: ClusterRoleBindingapiVersion: rbac.authorization.k8s.io/v1metadata: name: ServiceAccount name: nfs-client-provisioner namespace: defaultroleRef: kind: ClusterRole name: nfs-client-provisioner-runner apiGroup: rbac.authorization.k8s.io---kind: RoleapiVersion: rbac.authorization.k8s.io/v1metadata: name: leader-locking-nfs-client-provisionerrules:- apiGroups: [""] resources: ["endpoints"] verbs: ["get", "list" "watch", "create", "update", "patch"]-kind: RoleBindingapiVersion: rbac.authorization.k8s.io/v1metadata: name: leader-locking-nfs-client-provisionersubjects:- kind: ServiceAccount name: nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: defaultroleRef: kind: Role name: leader-locking-nfs-client-provisioner

2.2.2 create ServiceAccount and deploy NFS-Client Provisioner

Kubectl create-f deployment.yaml # # modify ip and directory

ApiVersion: v1kind: ServiceAccountmetadata: name: nfs-client-provisioner---kind: DeploymentapiVersion: extensions/v1beta1metadata: name: nfs-client-provisionerspec: 1 strategy: type: Recreate template: metadata: labels: app: nfs-client-provisionerspec: serviceAccount: nfs-client-provisioner containers:-name: nfs-client-provisioner image: quay.io/external_storage/nfs-client-provisioner:latest volumeMounts: -name: nfs-client-root mountPath: / persistentvolumes env:-name: PROVISIONER_NAME value: fuseim.pri/ifs-name: NFS_SERVER value: 192.168.1.10-name: NFS_PATH value: / data/nfs volumes:-name: nfs-client-root nfs: server: 192. 168.1.10 path: / data/nfs

2.2.3 create NFS StorageClass

Kubectl create-f class.yaml # # No need to modify yaml

ApiVersion: storage.k8s.io/v1kind: StorageClassmetadata: name: managed-nfs-storageprovisioner: fuseim.pri/ifsparameters: archiveOnDelete: "false"

2.3 deploy the database

Cd nacos-k8s/deploy/mysql/

2.3.1 deploy the master database

Kubectl create-f mysql-master-nfs.yaml # # what needs to be modified is the IP and directory of nfs

ApiVersion: v1kind: ReplicationControllermetadata: name: mysql-master labels: name: mysql-masterspec: replicas: 1 selector: name: mysql-master template: metadata: labels: name: mysql-masterspec: containers:-name: master image: nacos/nacos-mysql-master:latest ports:-containerPort: 3306 volumeMounts:-name: mysql-master-data mountPath: / var/lib/mysql env:-name: MYSQL_ROOT_PASSWORD value: "root"-name: MYSQL_DATABASE value: "nacos_devtest"-name: MYSQL_USER value: "nacos"-name: MYSQL_PASSWORD value: "nacos"-name: MYSQL_REPLICATION_USER value: 'nacos_ru' -name: MYSQL_REPLICATION_PASSWORD value: 'nacos_ru' volumes:-name: mysql-master-data nfs: server: 192.168.1.10 path: / data/mysql_master---apiVersion: v1kind: Servicemetadata: name: mysql-master labels: name: mysql-masterspec: ports:-port: 3306 targetPort: 3306 selector: name: mysql-master

2.3.2 deploy from the database

Kubectl create-f mysql-slave-nfs.yaml

ApiVersion: v1kind: ReplicationControllermetadata: name: mysql-slave labels: name: mysql-slavespec: replicas: 1 selector: name: mysql-slave template: metadata: labels: name: mysql-slavespec: containers:-name: slave image: nacos/nacos-mysql-slave:latest ports:-containerPort: 3306 volumeMounts:-name: mysql-slave-data mountPath: / var/lib/mysql env:-name: MYSQL_ROOT_PASSWORD value: "root"-name: MYSQL_REPLICATION_USER value: 'nacos_ru'-name: MYSQL_REPLICATION_PASSWORD value:' nacos_ru' volumes:-name: mysql-slave-data nfs: server: 192.168.1.10 Path: / data/mysql_slave---apiVersion: v1kind: Servicemetadata: name: mysql-slave labels: name: mysql-slavespec: ports:-port: 3306 targetPort: 3306 selector: name: mysql-slave

2.4 deployment of nacos

Cd nacos-k8s/deploy/nacos/

Kubectl create-f nacos-pvc-nfs.yaml # # this file needs to be greatly modified, mainly to add mounting based on the quickstart version, and to clean up other irrelevant content, as shown below

Note-name: NACOS_SERVERS this item, the domain name will automatically generate such a cluster.local,nacos-0.nacos-headless.default.svc.cluster.local:8848 when it is created, and my K8s default cluster name is set to cluster.test. So the nacos-0.nacos-headless.default.svc.cluster.test:8848 in the file is modified like this.

-apiVersion: v1kind: Servicemetadata: name: nacos-headless labels: app: ports:-port: 8848 name: server targetPort: 8848 selector: app: nacos---apiVersion: v1kind: ConfigMapmetadata: name: nacos-cmdata: mysql.master.db.name: "nacos_devtest" mysql.master.port: "3306" mysql.slave.port: "3306" mysql.master.user: "nacos" mysql.master. Password: "nacos"-apiVersion: apps/v1kind: StatefulSetmetadata: name: nacosspec: serviceName: nacos-headless replicas: 3 template: metadata: labels: app: nacos annotations: pod.alpha.kubernetes.io/initialized: "true" spec: affinity: podAntiAffinity: requiredDuringSchedulingIgnoredDuringExecution:-labelSelector: matchExpressions: -key: "app" operator: In values:-nacos-headless topologyKey: "kubernetes.io/hostname" containers:-name: k8snacos imagePullPolicy: Always image: nacos/nacos-server:latest resources: requests: memory: "2Gi" cpu: "500m" ports:-containerPort: 8848 name: client env:-name: NACOS_REPLICAS value: "3"-name: SERVICE_NAME value: "nacos-headless"-name: POD_NAMESPACE valueFrom: FieldRef: apiVersion: v1 fieldPath: metadata.namespace-name: MYSQL_MASTER_SERVICE_DB_NAME valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.db.name-name: MYSQL_MASTER_SERVICE_PORT ValueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.port-name: MYSQL_SLAVE_SERVICE_PORT valueFrom: configMapKeyRef: name: nacos-cm key: mysql.slave.port-name: MYSQL_MASTER_SERVICE _ USER valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.user-name: MYSQL_MASTER_SERVICE_PASSWORD valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.password-name NACOS_SERVER_PORT value: "8848"-name: PREFER_HOST_MODE value: "hostname"-name: NACOS_SERVERS value: "nacos-0.nacos-headless.default.svc.cluster.test:8848 nacos-1.nacos-headless.default.svc.cluster.test:8848 nacos-2.nacos-headless.default.svc.cluster.test:8848" VolumeMounts:-name: datadir mountPath: / home/nacos/data-name: logdir mountPath: / home/nacos/logs volumeClaimTemplates:-metadata: name: datadir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: ["ReadWriteMany"] Resources: requests: storage: 5Gi-metadata: name: logdir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: ["ReadWriteMany"] resources: requests: storage: 5Gi selector: matchLabels: app: nacos

You can also use this original

-apiVersion: v1kind: Servicemetadata: name: nacos-headless labels: app: nacos annotations: service.alpha.kubernetes.io/tolerate-unready-endpoints: "true" spec: ports:-port: 8848 name: server targetPort: 8848 clusterIP: None selector: app: nacos---apiVersion: v1kind: ConfigMapmetadata: name: nacos-cmdata: mysql.master.db.name: "nacos_devtest" mysql.master.port: "3306" mysql. Slave.port: "3306" mysql.master.user: "nacos" mysql.master.password: "nacos"-apiVersion: apps/v1kind: StatefulSetmetadata: name: nacosspec: nacos-headless replicas: 2 template: metadata: labels: app: nacos annotations: pod.alpha.kubernetes.io/initialized: "true" spec: affinity: podAntiAffinity: requiredDuringSchedulingIgnoredDuringExecution: -labelSelector: matchExpressions:-key: "app" operator: In values:-nacos topologyKey: "kubernetes.io/hostname" serviceAccountName: nfs-client-provisioner initContainers:-name: peer-finder-plugin-install image: nacos / nacos-peer-finder-plugin:latest imagePullPolicy: Always volumeMounts:-mountPath: "/ home/nacos/plugins/peer-finder" name: plugindir containers:-name: nacos imagePullPolicy: Always image: nacos/nacos-server:latest resources: requests: memory: "2Gi" Cpu: "1000m" ports:-containerPort: 8848 name: client-port env:-name: NACOS_REPLICAS value: "3"-name: SERVICE_NAME value: "nacos-headless"-name: POD_NAMESPACE valueFrom: fieldRef : apiVersion: v1 fieldPath: metadata.namespace-name: MYSQL_MASTER_SERVICE_DB_NAME valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.db.name-name: MYSQL_MASTER_SERVICE_PORT valueFrom: ConfigMapKeyRef: name: nacos-cm key: mysql.master.port-name: MYSQL_SLAVE_SERVICE_PORT valueFrom: configMapKeyRef: name: nacos-cm key: mysql.slave.port-name: MYSQL_MASTER_SERVICE_USER ValueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.user-name: MYSQL_MASTER_SERVICE_PASSWORD valueFrom: configMapKeyRef: name: nacos-cm key: mysql.master.password-name: NACOS_SERVER_PORT Value: "8848"-name: PREFER_HOST_MODE value: "hostname" readinessProbe: httpGet: port: client-port path: / nacos/v1/console/health/readiness initialDelaySeconds: 60 timeoutSeconds: 3 livenessProbe: httpGet: Port: client-port path: / nacos/v1/console/health/liveness initialDelaySeconds: 60 timeoutSeconds: 3 volumeMounts:-name: plugindir mountPath: / home/nacos/plugins/peer-finder-name: datadir mountPath: / home/nacos/data-name: logdir mountPath: / Home/nacos/logs volumeClaimTemplates:-metadata: name: plugindir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: ["ReadWriteMany"] resources: requests: storage: 5Gi-metadata: name: datadir annotations: volume.beta.kubernetes.io/ Storage-class: "managed-nfs-storage" spec: accessModes: ["ReadWriteMany"] resources: requests: storage: 5Gi-metadata: name: logdir annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage" spec: accessModes: ["ReadWriteMany"] resources: Requests: storage: 5Gi selector: matchLabels: app: nacos

View the result

[root@localhost nacos] # kubectl get pod NAME READY STATUS RESTARTS AGEmysql-master-hnnzq 1/1 Running 0 43hmysql-slave-jjq98 1/1 Running 0 43hnacos-0 1/1 Running 0 41hnacos-1 1/1 Running 0 41hnacos-2 1/1 Running 0 41hnfs-client-provisioner-57c8c85896-cpxtx 1 / 1 Running 0 45h [root@localhost nacos] # kubectl get svcNAME TYPE CLUSTER-IP EXTERNAL-IP PORT (S) AGEkubernetes ClusterIP 172.21.0.1 443/TCP 9dmysql-master ClusterIP 172.21.12.11 3306/TCP 43hmysql-slave ClusterIP 172.21.1.9 3306/TCP 43hnacos-headless ClusterIP 172.21.11.220 8848/TCP 41hnginx-svc ClusterIP 172.21.1.104 10080/TCP 8d [root@localhost nacos] # kubectl get storageclassNAME PROVISIONER AGEalicloud-disk-available alicloud/disk 9dalicloud-disk-efficiency alicloud/disk 9dalicloud-disk-essd alicloud/disk 9dalicloud-disk-ssd alicloud/disk 9dmanaged-nfs-storage fuseim.pri/ifs 45h [root@localhost nacos] # kubectl get pv PvcNAME CAPACITY ACCESS MODES RECLAIM POLICY STATUS CLAIM STORAGECLASS REASON AGEpersistentvolume/pvc-c920f9cf-f56f-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/datadir-nacos-0 managed-nfs-storage 43hpersistentvolume/pvc-c921977d-f56f-11e9-90dc- Da6119823c38 5Gi RWX Delete Bound default/logdir-nacos-0 managed-nfs-storage 43hpersistentvolume/pvc-c922401f-f56f-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/plugindir-nacos-0 managed-nfs-storage 43hpersistentvolume/pvc-db3ccda6-f56f-11e9-90dc-da6119823c38 5Gi RWX Delete Bound Default/datadir-nacos-1 managed-nfs-storage 43hpersistentvolume/pvc-db3dc25a-f56f-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/logdir-nacos-1 managed-nfs-storage 43hpersistentvolume/pvc-db3eb86c-f56f-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/plugindir-nacos-1 managed-nfs-storage 43hpersistentvolume/pvc-fa47ae6e-f57a-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/logdir-nacos-2 managed-nfs-storage 41hpersistentvolume/pvc-fa489723-f57a-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/plugindir-nacos-2 managed-nfs-storage 41hpersistentvolume/pvc-fa494137-f57a-11e9-90dc-da6119823c38 5Gi RWX Delete Bound default/datadir-nacos-2 managed-nfs-storage 41hNAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGEpersistentvolumeclaim/datadir-nacos-0 Bound pvc-c920f9cf-f56f-11e9-90dc-da6119823c38 5Gi RWX managed-nfs- Storage 43hpersistentvolumeclaim/datadir-nacos-1 Bound pvc-db3ccda6-f56f-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 43hpersistentvolumeclaim/datadir-nacos-2 Bound pvc-fa494137-f57a-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 41hpersistentvolumeclaim/logdir-nacos-0 Bound pvc-c921977d-f56f-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 43hpersistentvolumeclaim / logdir-nacos-1 Bound pvc-db3dc25a-f56f-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 43hpersistentvolumeclaim/logdir-nacos-2 Bound pvc-fa47ae6e-f57a-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 41hpersistentvolumeclaim/plugindir-nacos-0 Bound pvc-c922401f-f56f-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 43hpersistentvolumeclaim/plugindir-nacos -1 Bound pvc-db3eb86c-f56f-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 43hpersistentvolumeclaim/plugindir-nacos-2 Bound pvc-fa489723-f57a-11e9-90dc-da6119823c38 5Gi RWX managed-nfs-storage 41h [root@localhost nacos] #

Then you can access port 8848 by mapping it out with ingress.

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