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[Kubernetes]二进制集群存储longhorn,分享


1.1 Longhorn概述

Longhorn是用于Kubernetes的开源分布式块存储系统。

提示:更多介绍参考:https://github.com/longhorn/longhorn。

1.2 Longhorn部署

  1 [root@master01 ~]# cd /opt/k8s/work/   2 [root@master01 work]# source /root/environment.sh   3 [root@master01 work]# for all_ip in ${ALL_IPS[@]}   4   do   5     echo ">>> ${all_ip}"   6     ssh root@${all_ip} "yum -y install iscsi-initiator-utils &"   7   done

提示:本步骤操作仅需要在master01节点操作。

  1 [root@master01 work]# mkdir longhorn   2 [root@master01 work]# cd longhorn/   3 [root@master01 longhorn]# wget    4 https://raw.githubusercontent.com/longhorn/longhorn/master/deploy/longhorn.yaml   5 [root@master01 longhorn]# vi longhorn.yaml

  1 #……   2 ---   3 kind: Service   4 apiVersion: v1   5 metadata:   6   labels:   7     app: longhorn-ui   8   name: longhorn-frontend   9   namespace: longhorn-system  10 spec:  11   type: NodePort			#修改为nodeport  12   selector:  13     app: longhorn-ui  14   ports:  15   - port: 80  16     targetPort: 8000  17     nodePort: 30002  18 ---  19 ……  20 kind: DaemonSet  21 ……  22         imagePullPolicy: IfNotPresent  23 ……  24 #……
  1 [root@master01 longhorn]# kubectl apply -f longhorn.yaml   2 [root@master01 longhorn]# kubectl -n longhorn-system get pods -o wide

019.Kubernetes二进制集群存储longhorn,

提示:若部署异常可删除重建,若出现无法删除namespace,可通过如下操作进行删除:

  1 wget https://github.com/longhorn/longhorn/blob/master/uninstall/uninstall.yaml   2 rm -rf /var/lib/longhorn/   3 kubectl apply -f uninstall.yaml   4 kubectl delete -f longhorn.yaml

1.5 动态sc创建

提示:默认longhorn部署完成已创建一个sc,也可通过如下手动编写yaml创建。

  1 [root@master01 longhorn]# kubectl get sc   2 NAME                   PROVISIONER             RECLAIMPOLICY   VOLUMEBINDINGMODE      ALLOWVOLUMEEXPANSION   AGE   3 ……   4 longhorn               driver.longhorn.io      Delete          Immediate              true                   15m   5 [root@master01 longhorn]# vi longhornsc.yaml

  1 kind: StorageClass   2 apiVersion: storage.k8s.io/v1   3 metadata:   4   name: longhornsc   5 provisioner: rancher.io/longhorn   6 parameters:   7   numberOfReplicas: "3"   8   staleReplicaTimeout: "30"   9   fromBackup: ""
  1 [root@master01 longhorn]# kubectl create -f longhornsc.yaml

1.6 测试PV及PVC

  1 [root@master01 longhorn]# vi longhornpod.yaml
  1 apiVersion: v1   2 kind: PersistentVolumeClaim   3 metadata:   4   name: longhorn-pvc   5 spec:   6   accessModes:   7     - ReadWriteOnce   8   storageClassName: longhorn   9   resources:  10     requests:  11       storage: 2Gi  12 ---  13 apiVersion: v1  14 kind: Pod  15 metadata:  16   name: longhorn-pod  17   namespace: default  18 spec:  19   containers:  20   - name: volume-test  21     image: nginx:stable-alpine  22     imagePullPolicy: IfNotPresent  23     volumeMounts:  24     - name: volv  25       mountPath: /data  26     ports:  27     - containerPort: 80  28   volumes:  29   - name: volv  30     persistentVolumeClaim:  31       claimName: longhorn-pvc
  1 [root@master01 longhorn]# kubectl apply -f longhornpod.yaml   2 [root@master01 longhorn]# kubectl get pods -o wide   3 [root@master01 longhorn]# kubectl get pvc   4 [root@master01 longhorn]# kubectl get pv

019.Kubernetes二进制集群存储longhorn,

提示:本步骤操作仅需要在master01节点操作。

1.7 Ingress暴露Longhorn

  1 [root@master01 longhorn]# yum -y install httpd-tools   2 [root@master01 longhorn]# htpasswd -c auth xhy			#创建用户名和密码

提示:也可通过如下命令创建:

  1 [root@master01 longhorn]# kubectl -n longhorn-system create secret generic longhorn-basic-auth --from-file=auth   2    3 [root@master01 longhorn]# vi longhorn-ingress.yaml		#创建ingress规则

  1 apiVersion: networking.k8s.io/v1beta1   2 kind: Ingress   3 metadata:   4   name: longhorn-ingress   5   namespace: longhorn-system   6   annotations:   7     kubernetes.io/ingress.class: "nginx"   8     nginx.ingress.kubernetes.io/auth-type: basic   9     nginx.ingress.kubernetes.io/auth-secret: longhorn-basic-auth  10     nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required '  11 spec:  12   rules:  13   - host: longhorn.odocker.com  14     http:  15       paths:  16       - path: /  17         backend:  18           serviceName: longhorn-frontend  19           servicePort: 80
  1 [root@master01 longhorn]# kubectl apply -f longhorn-ingress.yaml

提示:本步骤操作仅需要在master01节点操作。

1.8 确认验证

浏览器访问:longhorn.odocker.com,并输入账号和密码。

019.Kubernetes二进制集群存储longhorn,

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019.Kubernetes二进制集群存储longhorn,

附0.1 helm安装

Helm 是 Kubernetes 的软件包管理工具,此处作为建议项部署,更多helm参考《053.集群管理-Helm工具》。

  1 [root@master01 ~]# cd /opt/k8s/work/   2 [root@master01 work]# mkdir /opt/k8s/work/helm   3 [root@master01 work]# source /root/environment.sh   4 [root@master01 work]# wget http://down.linuxsb.com:8888/helm-v3.2.3-linux-amd64.tar.gz   5 [root@master01 work]# tar -zxvf helm-v3.2.3-linux-amd64.tar.gz -C /opt/k8s/work/helm   6 [root@master01 work]# for master_ip in ${MASTER_IPS[@]}   7   do   8     echo ">>> ${master_ip}"   9     scp -rp /opt/k8s/work/helm/linux-amd64/helm root@${master_ip}:/opt/k8s/bin/  10     ssh root@${master_ip} "chmod +x /opt/k8s/bin/*"  11     ssh root@${master_ip} "helm version"  12     ssh root@${master_ip} "echo 'source <(helm completion bash)' >> $HOME/.bashrc"  13   done

附0.2 helm安装

  1 [root@master01 work]# helm repo add brigade https://brigadecore.github.io/charts   2 [root@master01 work]# helm repo add stable https://kubernetes-charts.storage.googleapis.com/				#添加官方repo   3 [root@master01 work]# helm repo add bitnami https://charts.bitnami.com/bitnami   4 [root@master01 work]# helm repo list			#查看repo

019.Kubernetes二进制集群存储longhorn,

提示:本步骤操作仅需要在master01节点操作。

www.dengb.comtruehttp://www.dengb.com/Linuxjc/1412491.htmlTechArticle019.Kubernetes二进制集群存储longhorn, 一 Longhorn存储部署 1.1 Longhorn概述 Longhorn是用于Kubernetes的开源分布式块存储系统。 提示:更多介绍参考…

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