k8s应用-搭建zabbix监控平台

测试学习使用kubernetes集群搭建zabbix监控平台

搭建nfs服务器

yum install -y nfs-utils
mkdir -p /nfs/data
echo "/root/nfs_root *(insecure,rw,sync,no_root_squash)" > /etc/exports
systemctl enable rpcbind
systemctl enable nfs-server
systemctl start rpcbind
exportfs -r
#查看nfs
exportfs

安装zabbix-mysql

编写zabbix-mysql的yaml文件

#vim zabbix_mysql.yaml
---
apiVersion: v1
kind: PersistentVolume
metadata:
  name: zabbixdb-pv
spec:
  capacity:   #创建存储的大小
    storage: 10Gi
  volumeMode: Filesystem  #存储的类型
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  nfs:
    path: /root/nfs_root #此处更改为实际的nfs地址配置
    server: 192.168.85.6
  mountOptions:
    - hard
    - nfsvers=4.1
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: zabbixdb-pvc
  namespace: zabbix
spec:
  accessModes:
    - ReadWriteOnce
  volumeMode: Filesystem   #存储类型 ，块存储Block
  resources:
    requests:
      storage: 5Gi
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: zabbixdb
  name: zabbixdb
  namespace: zabbix
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zabbixdb
  strategy: {}
  template:
    metadata:
      labels:
        app: zabbixdb
    spec:
      volumes:
      - name: zabbixdb-data
        persistentVolumeClaim:
          claimName: zabbixdb-pvc
      containers:
      - image: mysql:8.0
        name: mysql
        ports:
        - name: mysql
          containerPort: 3306
          protocol: TCP
        volumeMounts:
        - name: zabbixdb-data
          mountPath: /var/lib/mysql
        env:
        - name: MYSQL_DATABASE
          value: 'zabbix'
        - name: MYSQL_USER
          value: 'zabbix'
        - name: MYSQL_PASSWORD
          value: 'zabbix'
        - name: MYSQL_ROOT_PASSWORD
          value: 'zabbix'
        resources: 
          requests:
             cpu: 0.1
             memory: 128Mi
          limits:
             cpu: 0.3
             memory:  512Mi
---

apiVersion: v1
kind: Service
metadata:
  creationTimestamp: null
  labels:
    app: zabbixdb
  name: zabbixdb
  namespace: zabbix
spec:
 # clusterIP: 10.96.1.99
  ports:
  - name: 3306-3306
    port: 3306
    protocol: TCP
    targetPort: 3306
  selector:
    app: zabbixdb
  type: ClusterIP
status:
  loadBalancer: {}

创建命名空间

kubectl create ns zabbix

创建zabbix数据库

kubectl apply -f zabbix_mysql.yaml

检查pod状态

检查zabbix数据库的service域名

运行测试pod

#运行busybox
kubectl run busybox --image=busybox:1.28 -- sleep 3600
#进入busybox
kubectl exec -it busybox -- /bin/sh

查看域名解析

nslookup zabbixdb.zabbix.svc.cluster.local

确认svc配置生效

安装zabbix-server

编写zabbix_server.yaml的文件

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: zabbix-server
  name: zabbix-server
  namespace: zabbix
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zabbix-server
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: zabbix-server
    spec:
      volumes:
      - name: zabbix-scripts
        hostPath:
          path: /usr/lib/zabbix/
      - name: zabbix-file
        hostPath:
          path: /var/lib/zabbix
      nodeSelector:
        zabbix-server: "true"
      hostNetwork: true
      containers:
      - image: zabbix/zabbix-server-mysql:6.0-ubuntu-latest
        name: zabbix-server-mysql
        env:
        - name: DB_SERVER_HOST
          value:  zabbixdb  #使用service的name
        - name: MYSQL_USER
          value: zabbix
        - name: MYSQL_PASSWORD
          value: zabbix
        resources: {}
status: {}

给node节点打上标签进行调度

kubectl label nodes k8s-node02  zabbix-server=true

安装zabbix-server

kubectl apply -f zabbix_server.yaml 

查看pod状态

部署zabbix-web

编写zabbix-web.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    app: zabbix-web
  name: zabbix-web
  namespace: zabbix
spec:
  replicas: 1
  selector:
    matchLabels:
      app: zabbix-web
  strategy: {}
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: zabbix-web
    spec:
      containers:
      - image: zabbix/zabbix-web-nginx-mysql:6.0-ubuntu-latest
        name: zabbix-web-nginx-mysql
        env:
        - name: DB_SERVER_HOST
          value: zabbixdb.zabbix.svc.cluster.local
        - name: MYSQL_USER
          value: zabbix
        - name: MYSQL_PASSWORD
          value: zabbix
        - name: ZBX_SERVER_HOST
          value: 192.168.85.4 #此处随便填？
        - name: PHP_TZ
          value: Asia/shanghai
        resources: {}
status: {}
---
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: null
  labels:
    app: zabbix-web
  name: zabbix-web
  namespace: zabbix
spec:
  ports:
  - name: 8080-8080
    port: 8080
    protocol: TCP
    targetPort: 8080
  selector:
    app: zabbix-web
  type: NodePort
status:
  loadBalancer: {}

创建并查看pod状态

安装zabbix-agent

#vim zabbix-agent
apiVersion: apps/v1
kind: DaemonSet
metadata:
  labels:
    app: zabbix-agent
  name: zabbix-agent
  namespace: zabbix
spec:
  selector:
    matchLabels:
      app: zabbix-agent
  template:
    metadata:
      creationTimestamp: null
      labels:
        app: zabbix-agent
    spec:
      hostNetwork: true
      containers:
      - image: zabbix/zabbix-agent:6.0-ubuntu-latest
        name: zabbix-agent
        env:
        - name: ZBX_SERVER_HOST
          value: 192.168.85.4
        resources: {}

登录

查看svc

登录zabbix

http;//<nodeip>:32591

账户密码 admin zabbix