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1 [root@k8smaster01 ~]# vi heketi-secret.yaml #创建用于保存密码的secret 2 apiVersion: v1 3 kind: Secret 4 metadata: 5 name: heketi-secret 6 namespace: heketi 7 data: 8 # base64 encoded password. E.g.: echo -n "mypassword" | base64 9 key: YWRtaW4xMjM= 10 type: kubernetes.io/glusterfs
1 [root@k8smaster01 heketi]# kubectl create -f heketi-secret.yaml #创建heketi 2 [root@k8smaster01 heketi]# kubectl get secrets -n heketi 3 NAME TYPE DATA AGE 4 default-token-6n746 kubernetes.io/service-account-token 3 144m 5 heketi-config-secret Opaque 3 142m 6 heketi-secret kubernetes.io/glusterfs 1 3m1s 7 heketi-service-account-token-ljlkb kubernetes.io/service-account-token 3 143m 8 [root@k8smaster01 ~]# mkdir mongo 9 [root@k8smaster01 ~]# cd mongo
1 [root@k8smaster01 heketi]# vi storageclass-fast.yaml 2 apiVersion: storage.k8s.io/v1 3 kind: StorageClass 4 metadata: 5 name: fast 6 parameters: 7 resturl: "http://10.254.82.26:8080" 8 clusterid: "d96022e907f82045dcc426a752adc47c" 9 restauthenabled: "true" 10 restuser: "admin" 11 secretName: "heketi-secret" 12 secretNamespace: "default" 13 volumetype: "replicate:3" 14 provisioner: kubernetes.io/glusterfs 15 reclaimPolicy: Delete
1 [root@k8smaster01 heketi]# kubectl create -f storageclass-fast.yaml 2 [root@k8smaster01 heketi]# kubectl get storageclasses/fast
1 [root@uk8s-m-01 mongo]# vi defaultaccout.yaml 2 --- 3 apiVersion: rbac.authorization.k8s.io/v1beta1 4 kind: ClusterRoleBinding 5 metadata: 6 name: DDefault-Cluster-Admin 7 subjects: 8 - kind: ServiceAccount 9 # Reference to upper's `metadata.name` 10 name: default 11 # Reference to upper's `metadata.namespace` 12 namespace: default 13 roleRef: 14 kind: ClusterRole 15 name: cluster-admin 16 apiGroup: rbac.authorization.k8s.io 17 18 [root@uk8s-m-01 mongo]# kubectl apply -f defaultaccout.yaml
1 [root@k8smaster01 mongo]# vi mongo-headless-service.yaml
1 [root@k8smaster01 mongo]# vi statefulset-mongo.yaml 2 --- 3 apiVersion: v1 4 kind: Service 5 metadata: 6 name: mongo 7 labels: 8 name: mongo 9 spec: 10 ports: 11 - port: 27017 12 targetPort: 27017 13 clusterIP: None 14 selector: 15 role: mongo 16 --- #以上为headless-service 17 apiVersion: apps/v1beta1 18 kind: StatefulSet 19 metadata: 20 name: mongo 21 spec: 22 serviceName: "mongo" 23 replicas: 3 24 template: 25 metadata: 26 labels: 27 role: mongo 28 environment: test 29 spec: 30 terminationGracePeriodSeconds: 10 31 containers: 32 - name: mongo 33 image: mongo:3.4 #新版可能不支持smallfiles参数,因此指定为3.4版本 34 command: 35 - mongod 36 - "--replSet" 37 - rs0 38 - "--bind_ip" 39 - 0.0.0.0 40 - "--smallfiles" #使用较小的默认文件 41 - "--noprealloc" #禁用数据文件预分配 42 ports: 43 - containerPort: 27017 44 volumeMounts: 45 - name: mongo-persistent-storage 46 mountPath: /data/db 47 - name: mongo-sidecar 48 image: cvallance/mongo-k8s-sidecar 49 env: 50 - name: MONGO_SIDECAR_POD_LABELS 51 value: "role=mongo,environment=test" 52 - name: KUBERNETES_MONGO_SERVICE_NAME 53 value: "mongo" 54 volumeClaimTemplates: 55 - metadata: 56 name: mongo-persistent-storage 57 annotations: 58 volume.beta.kubernetes.io/storage-class: "fast" 59 spec: 60 accessModes: [ "ReadWriteOnce" ] 61 resources: 62 requests: 63 storage: 2Gi
1 [root@k8smaster01 mongo]# kubectl create -f statefulset-mongo.yaml #创建mongo
1 [root@VPN ~]# docker pull cvallance/mongo-k8s-sidecar:latest 2 [root@VPN ~]# docker pull mongo:3.4.4 3 [root@VPN ~]# docker save -o mongo-k8s-sidecar.tar cvallance/mongo-k8s-sidecar:latest 4 [root@VPN ~]# docker save -o mongo_3_4_4.tar mongo:3.4.4 5 [root@k8snode01 ~]# docker load -i mongo-k8s-sidecar.tar 6 [root@k8snode01 ~]# docker load -i mongo.tar 7 [root@k8snode01 ~]# docker images
1 kubectl delete -f statefulset-mongo.yaml 2 kubectl delete -f mongo-headless-service.yaml 3 kubectl delete pvc -l role=mongo
1 [root@k8smaster01 mongo]# kubectl get pod -l role=mongo #查看集群pod 2 NAME READY STATUS RESTARTS AGE 3 mongo-0 2/2 Running 0 9m44s 4 mongo-1 2/2 Running 0 7m51s 5 mongo-2 2/2 Running 0 6m1s
1 [root@k8smaster01 mongo]# kubectl get pvc
1 [root@k8smaster01 mongo]# kubectl get pods mongo-0 -o yaml | grep -A 3 volumes #查看挂载
1 [root@k8smaster01 mongo]# kubectl exec -ti mongo-0 -- mongo 2 …… 3 rs0:PRIMARY> rs.status()
1 [root@k8smaster01 ~]# kubectl scale statefulset mongo --replicas=4 #扩容为4个 2 [root@k8smaster01 ~]# kubectl get pod -l role=mongo 3 NAME READY STATUS RESTARTS AGE 4 mongo-0 2/2 Running 0 105m 5 mongo-1 2/2 Running 0 103m 6 mongo-2 2/2 Running 0 101m 7 mongo-3 2/2 Running 0 50m
1 [root@k8smaster01 mongo]# kubectl exec -ti mongo-0 -- mongo 2 …… 3 rs0:PRIMARY> rs.status() 4 ……
1 [root@k8smaster01 ~]# kubectl get pvc 2 [root@k8smaster01 ~]# kubectl delete pod mongo-0 3 [root@k8smaster01 mongo]# kubectl exec -ti mongo-0 -- mongo 4 …… 5 rs0:PRIMARY> rs.status() 6 ……
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