k8s部署zabbix

Myth丶恋晨 2022-10-30 01:20 598阅读 0赞

k8s以Deployment方式部署zabbix。当前最新版本：5.2.4

--------------------

### namespace ###

mkdir -p /home/k8s/zabbix/{ mysql,zabbix-server,zabbix-web}
    
    cd /home/k8s/zabbix
    
    vim namespace.yaml

apiVersion: v1
    kind: Namespace
    metadata:
      name: monitoring

--------------------

### pv ###

*  部署nfs：

选择一节点，

mkdir -p /data/mysql
    
    yum -y install nfs-utils rpcbind
    
    echo '/data/mysql 192.168.30.0/24(rw,sync,no_root_squash)' > /etc/exports
    
    chmod -R 755 /data/mysql
    
    exportfs -arv
    
    systemctl enable rpcbind && systemctl start rpcbind
    
    systemctl enable nfs && systemctl start nfs

nfs部署完毕。对于需要使用nfs的node节点，都要安装nfs：

yum -y install nfs-utils

*  创建pv：

cd /home/k8s/zabbix
    
    vim nfs-mysql-pv.yaml

apiVersion: v1
    kind: PersistentVolume
    metadata:
      name: mysql-pv
      labels:
        pvname: nfs-mysql-pv
    spec:
      capacity:
        storage: 20Gi
      accessModes:
        - ReadWriteMany
      nfs:
        server: 192.168.30.129
        path: /data/mysql

--------------------

### mysql ###

vim mysql/mysql.yaml

apiVersion: v1
    kind: Service
    metadata:
      name: mysql
      namespace: monitoring
      labels:
        app: mysql
    spec:
      selector:
        app: mysql
      ports:
      - name: mysql
        port: 3306
        protocol: TCP
        targetPort: 3306
      clusterIP: None
    
    ---
    apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      name: mysql
      namespace: monitoring
    spec:
      serviceName: mysql
      replicas: 1
      selector:
        matchLabels:
          app: mysql
      template:
        metadata:
          labels:
            app: mysql
        spec:
          containers:
          - name: mysql
            image: mysql:5.7.28
            imagePullPolicy: IfNotPresent
            args:
            - "--character-set-server=utf8"
            - "--collation-server=utf8_bin"
            - "--default-authentication-plugin=mysql_native_password"
            env:
            - name: MYSQL_DATABASE
              value: "zabbix"
            - name: MYSQL_USER
              value: "zabbix"
            - name: MYSQL_PASSWORD
              value: "zabbix"
            - name: MYSQL_ROOT_PASSWORD
              value: "zabbix"
            ports:
            - containerPort: 3306
              name: mysql
              protocol: TCP
            resources:
              requests:
                cpu: 1000m
                memory: 1000Mi
              limits:
                cpu: 2000m
                memory: 2000Mi
            volumeMounts:
            - name: timezone
              mountPath: /etc/localtime
            - name: data
              mountPath: /var/lib/mysql
          terminationGracePeriodSeconds: 20
          volumes:
          - name: timezone
            hostPath:
              path: /usr/share/zoneinfo/Asia/Shanghai
      volumeClaimTemplates:
      - metadata:
          name: data
          namespace: monitoring
        spec:
          selector:
            matchLabels:
              pvname: nfs-mysql-pv
          accessModes: [ "ReadWriteMany" ]
          resources:
            requests:
              storage: 20Gi

--------------------

### zabbix-server ###

vim zabbix-server/zabbix-server.yaml

apiVersion: v1
    kind: Service
    metadata:
      name: zabbix-server
      namespace: monitoring
      labels:
        app: zabbix-server
    spec:
      selector:
        app: zabbix-server
      ports:
      - name: zabbix-server
        port: 10051
        nodePort: 30051
      type: NodePort
    
    ---
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: zabbix-server
      namespace: monitoring
    spec:
      replicas: 1
      selector:
        matchLabels:
          app: zabbix-server
      template:
        metadata:
          labels:
            app: zabbix-server
        spec:
          containers:
          - name: zabbix-server
            image: zabbix/zabbix-server-mysql:latest
            imagePullPolicy: IfNotPresent
            env:
            - name: DB_SERVER_HOST
              value: mysql
            - name: DB_SERVER_PORT
              value: "3306"
            - name: MYSQL_DATABASE
              value: zabbix
            - name: MYSQL_USER
              value: zabbix
            - name: MYSQL_PASSWORD
              value: zabbix
            - name: MYSQL_ROOT_PASSWORD
              value: zabbix
            - name: ZBX_CACHESIZE
              value: "512M"
            - name: ZBX_HISTORYCACHESIZE
              value: "128M"
            - name: ZBX_HISTORYINDEXCACHESIZE
              value: "128M"
            - name: ZBX_TRENDCACHESIZE
              value: "128M"
            - name: ZBX_VALUECACHESIZE
              value: "256M"
            - name: ZBX_TIMEOUT
              value: "30"
            ports:
            - containerPort: 10051
              name: zabbix-server
              protocol: TCP
            resources:
              requests:
                cpu: 1000m
                memory: 1000Mi
              limits:
                cpu: 1000m
                memory: 1000Mi
          - name: zabbix-agent
            image: zabbix/zabbix-agent:latest
            imagePullPolicy: IfNotPresent
            env:
            - name: ZBX_HOSTNAME
              value: "Zabbix server"
            - name: ZBX_SERVER_HOST
              value: "127.0.0.1"
            - name: ZBX_STARTAGENTS
              value: "3"
            - name: ZBX_UNSAFEUSERPARAMETERS
              value: "1"
            - name: ZBX_TIMEOUT
              value: "10"
            ports:
            - containerPort: 10050
              name: zabbix-agent
              protocol: TCP
            resources:
              requests:
                cpu: 200m
                memory: 200Mi
              limits:
                cpu: 200m
                memory: 200Mi
          nodeSelector:             #固定zabbix server ip
            node-role.kubernetes.io/master: ""
          tolerations:
          - key: node-role.kubernetes.io/master
            operator: Exists
            effect: NoSchedule

--------------------

### zabbix-web ###

vim zabbix-web/zabbix-web.yaml

apiVersion: extensions/v1beta1
    kind: Ingress
    metadata:
      name: zabbix-web
      namespace: monitoring
    spec:
      rules:
      - host: zabbix.lzxlinux.cn
        http:
          paths:
          - path: /
            backend:
              serviceName: zabbix-web
              servicePort: 8080
    
    ---
    apiVersion: v1
    kind: Service
    metadata:
      name: zabbix-web
      namespace: monitoring
      labels:
        app: zabbix-web
    spec:
      selector:
        app: zabbix-web
      ports:
      - name: web
        port: 8080
        protocol: TCP
    
    ---
    apiVersion: apps/v1
    kind: Deployment
    metadata:
      name: zabbix-web
      namespace: monitoring
    spec:
      replicas: 1
      selector:
        matchLabels:
          app: zabbix-web
      template:
        metadata:
          labels:
            app: zabbix-web
        spec:
          containers:
          - name: zabbix-web
            image: zabbix/zabbix-web-nginx-mysql:latest
            imagePullPolicy: IfNotPresent
            env:
            - name: DB_SERVER_HOST
              value: mysql
            - name: MYSQL_DATABASE
              value: zabbix
            - name: MYSQL_USER
              value: zabbix
            - name: MYSQL_PASSWORD
              value: zabbix
            - name: MYSQL_ROOT_PASSWORD
              value: zabbix
            - name: ZBX_SERVER_HOST
              value: zabbix-server
            - name: PHP_TZ
              value: "Asia/Shanghai"
            ports:
            - containerPort: 8080
              name: web
              protocol: TCP
            resources:
              requests:
                cpu: 500m
                memory: 500Mi
              limits:
                cpu: 500m
                memory: 500Mi

--------------------

### 部署 ###

tree .
    
    .
    ├── mysql
    │   └── mysql.yaml
    ├── namespace.yaml
    ├── nfs-mysql-pv.yaml
    ├── zabbix-server
    │   └── zabbix-server.yaml
    └── zabbix-web
        └── zabbix-web.yaml
    
    3 directories, 5 files

kubectl apply -f namespace.yaml
    
    kubectl apply -f nfs-mysql-pv.yaml
    
    kubectl apply -f mysql/
    
    kubectl apply -f zabbix-server/
    
    kubectl apply -f zabbix-web/

kubectl get all -n monitoring
    
    NAME                                READY   STATUS    RESTARTS   AGE
    pod/mysql-0                         1/1     Running   0          5m13s
    pod/zabbix-server-98fdf455b-kjfpg   2/2     Running   0          4m2s
    pod/zabbix-web-7c5485fcb9-mxhsm     1/1     Running   0          104s
    
    NAME                    TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)           AGE
    service/mysql           ClusterIP   None             <none>        3306/TCP          5m13s
    service/zabbix-server   NodePort    10.109.117.167   <none>        10051:30051/TCP   4m2s
    service/zabbix-web      ClusterIP   10.106.252.238   <none>        8080/TCP          104s
    
    NAME                            READY   UP-TO-DATE   AVAILABLE   AGE
    deployment.apps/zabbix-server   1/1     1            1           4m2s
    deployment.apps/zabbix-web      1/1     1            1           104s
    
    NAME                                      DESIRED   CURRENT   READY   AGE
    replicaset.apps/zabbix-server-98fdf455b   1         1         1       4m2s
    replicaset.apps/zabbix-web-7c5485fcb9     1         1         1       104s
    
    NAME                     READY   AGE
    statefulset.apps/mysql   1/1     5m13s

添加hosts：`zabbix.lzxlinux.cn`，账号/密码：`Admin`/`zabbix`。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center]

Zabbix server 信息，

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center 1]

--------------------

### zabbix-agent ###

zabbix agent 节点启动docker，

mkdir -p /data/zabbix-agent && chmod -R 755 /data/zabbix-agent
    
    cat > /data/zabbix-agent/zabbix_agentd.conf << EOF LogType=console Server=192.168.30.128 #k8s master ip，部署时删除注释 StartAgents=3 ServerActive=192.168.30.128:30051 Hostname=192.168.30.129 #k8s node ip，部署时删除注释 User=zabbix UnsafeUserParameters=1 LoadModulePath=/var/lib/zabbix/modules/ EOF
    
    docker run -d --name zabbix-agent \
        -v /data/zabbix-agent:/etc/zabbix \
        -p 10050:10050 zabbix/zabbix-agent:latest

查看日志报错：`no active checks on server [192.168.30.128:30051]: host [192.168.30.129] not found`

解决：zabbix web 界面添加host，hostname 为 192.168.30.129。

Zabbix agent 信息，

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center 2]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center 3]

k8s部署zabbix完成。已存放至个人github：[kubernetes][]

--------------------

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20221024/3e38e6a3899144e9ad2afac6c05f33e7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center 2]: /images/20221024/975794a44f45465098bedbf40bc9a2fb.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L21pc3MxMTgxMjQ4OTgz_size_16_color_FFFFFF_t_70_pic_center 3]: /images/20221024/40cc4c58afc84ebd92b79e898ae285a2.png
[kubernetes]: https://github.com/Tobewont/kubernetes