Zabbix 简介[1]

Zabbix 是由 Alexei Vladishev 开发的一种网络监视、管理系统，基于 Server-Client 架构。可用于监视各种网络服务、服务器和网络机器等状态。

Zabbix 使用 MySQL、PostgreSQL、SQLite、Oracle 或 IBM DB2 储存资料。Server 端基于 C语言、Web 前端则是基于 PHP 所制作的。Zabbix 可以使用多种方式监视。可以只使用 Simple Check 不需要安装 Client 端，亦可基于 SMTP 或 HTTP 等各种协定做死活监视。在客户端如 UNIX、Windows 中安装 Zabbix Agent 之后，可监视 CPU 负荷、网络使用状况、硬盘容量等各种状态。而就算没有安装 Agent 在监视对象中，Zabbix 也可以经由 SNMP、TCP、ICMP检查，以及利用 IPMI、SSH、telnet 对目标进行监视。另外，Zabbix 包含 XMPP 等各种 Item 警示功能。

Zabbix 功能和特性[2]

安装与配置简单

可视化web管理界面

免费开源

支持中文

自动发现

分布式监控

实时绘图

环境

Kubernetes 版本 1.15.6

Zabbix 版本 3.4.7 (镜像，在官方基础上修改，下文会具体介绍)

Mariadb 版本 10.3.5

Zabbix Dockerfile 修改

zabbix-server-mysql：Dockerfile 在官方基础上修改，添加 python支持，用于支持python通知脚本环境；时区修改为上海时区；

FROM zabbix/zabbix-server-mysql:alpine-3.4.7

RUN cp /etc/apk/repositories /etc/apk/repositories.bak \

&& echo "http://mirrors.aliyun.com/alpine/v3.4/main/" > /etc/apk/repositories \

&& apk add --update python python-dev py-pip build-base \

&& apk add -U tzdata \

&& cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \

&& pip install requests configparser \

&& touch /tmp/zabbix_dingding.log \

&& chown zabbix:zabbix /tmp/zabbix_dingding.log \

&& rm -rf /var/cache/apk/*

WORKDIR /var/lib/zabbix

EXPOSE 10051/TCP

VOLUME ["/usr/lib/zabbix/alertscripts", "/usr/lib/zabbix/externalscripts", "/var/lib/zabbix/enc", "/var/lib/zabbix/mibs", "/var/lib/zabbix/modules"]

VOLUME ["/var/lib/zabbix/snmptraps", "/var/lib/zabbix/ssh_keys", "/var/lib/zabbix/ssl/certs", "/var/lib/zabbix/ssl/keys", "/var/lib/zabbix/ssl/ssl_ca"]

ENTRYPOINT ["docker-entrypoint.sh"]

zabbix-web-nginx-mysql：Dockerfile 在官方基础上修改，添加中文字体，解决查看web监控时中文乱码；时区修改为上海时区；

msyh.ttf 字体，可以从下文已打好的镜像获取。

FROM zabbix/zabbix-web-nginx-mysql:alpine-3.4.7

COPY msyh.ttf /usr/share/fonts/ttf-dejavu/DejaVuSans.ttf

RUN cp /etc/apk/repositories /etc/apk/repositories.bak \

&& echo "http://mirrors.aliyun.com/alpine/v3.4/main/" > /etc/apk/repositories \

&& apk add -U tzdata \

&& cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \

&& rm -rf /var/cache/apk/*

EXPOSE 80/TCP 443/TCP

WORKDIR /usr/share/zabbix

VOLUME ["/etc/ssl/nginx"]

ENTRYPOINT ["docker-entrypoint.sh"]

Zabbix K8S 部署

首先部署 Mariadb

PS：NFS 提供存储

$ vim mariadb-pv.yaml

apiVersion: v1

kind: PersistentVolume

metadata:

name: mariadb-pv

namespace: kube-system

spec:

capacity:

storage: 100Gi

accessModes:

- ReadWriteMany

persistentVolumeReclaimPolicy: Retain

nfs:

path: /nfs-data/mariadb_db_data

server: 192.16.3.6

$ vim mariadb-pvc.yaml

apiVersion: v1

kind: PersistentVolumeClaim

metadata:

name: mariadb-pvc

namespace: kube-system

spec:

accessModes:

- ReadWriteMany

resources:

requests:

storage: 100Gi

$ vim mariadb-deploy.yaml

apiVersion: v1

kind: Service

metadata:

name: mariadb-server

namespace: kube-system

labels:

name: mariadb-server

spec:

ports:

- port: 3306

targetPort: 3306

protocol: TCP

selector:

name: mariadb-server

---

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

name: mariadb-server

namespace: kube-system

labels:

name: mariadb-server

spec:

replicas: 1

revisionHistoryLimit: 3

strategy:

rollingUpdate:

maxSurge: 30%

maxUnavailable: 30%

template:

metadata:

labels:

name: mariadb-server

spec:

volumes:

- name: mariadb-storage

persistentVolumeClaim:

claimName: mariadb-pvc

hostname: mariadb-server

containers:

- name: mariadb-server

image: yangpeng2468/mariadb:10.3.5

resources:

limits:

cpu: 400m

memory: 1024Mi

requests:

cpu: 100m

memory: 100Mi

imagePullPolicy: IfNotPresent

ports:

- containerPort: 3306

env:

- name: MYSQL_ROOT_PASSWORD

value: "Password"

volumeMounts:

- name: mariadb-storage

mountPath: /var/lib/mysql

# 部署 Mariadb

$ kubectl apply -f mariadb-pv.yaml

$ kubectl apply -f mariadb-pvc.yaml

$ kubectl apply -f mariadb-deploy.yaml

部署 Configmap 通知钉钉脚本

$ vim zabbix-dingding-conf-configmap.yaml

apiVersion: v1

kind: ConfigMap

metadata:

name: zabbix-dingding-conf

namespace: kube-system

data:

dingding.conf: |

[config]

#此文件注意权限

log=/tmp/zabbix_dingding.log

webhook=https://oapi.dingtalk.com/robot/send?access_token=${钉钉机器人token}

$ vim zabbix-dingding-script-configmap.yaml

apiVersion: v1

kind: ConfigMap

metadata:

name: zabbix-dingding-script

namespace: kube-system

data:

zabbix_dingding.py: |

#!/usr/bin/env python

# -*- coding: utf-8 -*-

import requests

import json

import sys

import time

import configparser

Headers = {'Content-Type': 'application/json'}

Time = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())

config = configparser.ConfigParser()

config.read('/usr/lib/zabbix/externalscripts/dingding.conf')

# config.read('/etc/zabbix/dingding.conf')

log_file = config.get('config', 'log')

api_url = config.get('config', 'webhook')

def log(info):

#注意权限,否则写不进去日志

with open(log_file, 'a+') as infile:

infile.write(info)

def msg(text,user):

json_text = {

"msgtype": "text",

"text": {

"content": text

},

"at": {

"atMobiles": [

user

],

"isAtAll": False

}

}

r = requests.post(api_url, data=json.dumps(json_text), headers=Headers).json()

code = r["errcode"]

if code == 0:

log(Time + ":消息发送成功 返回码:" + str(code) + "\n")

else:

log(Time + ":消息发送失败 返回码:" + str(code) + "\n")

exit(3)

if __name__ == '__main__':

text = sys.argv[3]

user = sys.argv[1]

msg(text, user)

# 部署

$ kubectl apply -f zabbix-dingding-conf-configmap.yaml zabbix-dingding-script-configmap.yaml

部署 zabbix-server

$ vim zabbix-server-deploy.yaml

apiVersion: v1

kind: Service

metadata:

name: zabbix-server

namespace: kube-system

labels:

app: zabbix-server

spec:

type: NodePort

ports:

- port: 10051

targetPort: 10051

nodePort: 30017

protocol: TCP

selector:

app: zabbix-server

---

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

name: zabbix-server

namespace: kube-system

labels:

app: zabbix-server

spec:

replicas: 1

revisionHistoryLimit: 3

strategy:

rollingUpdate:

maxSurge: 30%

maxUnavailable: 30%

template:

metadata:

labels:

app: zabbix-server

spec:

hostname: zabbix-server

volumes:

- name: zabbix-dingding-script

configMap:

name: zabbix-dingding-script

defaultMode: 0775

- name: zabbix-dingding-conf

configMap:

name: zabbix-dingding-conf

defaultMode: 0664

containers:

- name: zabbix-server

image: yangpeng2468/zabbix-server-mysql:3.4.7

imagePullPolicy: IfNotPresent

resources:

limits:

cpu: 400m

memory: 1024Mi

requests:

cpu: 100m

memory: 100Mi

ports:

- containerPort: 10051

env:

- name: DB_SERVER_HOST

value: "mariadb-server"

- name: MYSQL_USER

value: "zabbix"

- name: MYSQL_PASSWORD

value: "zabbix"

- name: MYSQL_DATABASE

value: "zabbix"

- name: ZBX_CACHESIZE

value: "1024M"

- name: TZ

value: "Asia/Shanghai"

volumeMounts:

- name: zabbix-dingding-script

mountPath: /usr/lib/zabbix/alertscripts

- name: zabbix-dingding-conf

mountPath: /usr/lib/zabbix/externalscripts

# 部署

$ kubectl apply -f zabbix-server-deploy.yaml

部署 zabbix-web

$ vim zabbix-web-deploy.yaml

apiVersion: v1

kind: Service

metadata:

name: zabbix-web

namespace: kube-system

labels:

app: zabbix-web

spec:

ports:

- port: 80

targetPort: 80

protocol: TCP

selector:

app: zabbix-web

---

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

name: zabbix-web

namespace: kube-system

labels:

app: zabbix-web

spec:

replicas: 1

revisionHistoryLimit: 3

strategy:

rollingUpdate:

maxSurge: 30%

maxUnavailable: 30%

template:

metadata:

labels:

app: zabbix-web

spec:

hostname: zabbix-web

containers:

- name: zabbix-web

image: yangpeng2468/zabbix-web-nginx-mysql:3.4.7

imagePullPolicy: IfNotPresent

resources:

limits:

cpu: 300m

memory: 600Mi

requests:

cpu: 100m

memory: 100Mi

ports:

- containerPort: 80

env:

- name: DB_SERVER_HOST

value: "mariadb-server"

- name: ZBX_SERVER_HOST

value: "zabbix-server"

- name: MYSQL_USER

value: "zabbix"

- name: MYSQL_PASSWORD

value: "zabbix"

- name: TZ

value: "Asia/Shanghai"

- name: PHP_TZ

value: "Asia/Shanghai"

# 部署

$ kubectl apply -f zabbix-web-deploy.yaml

部署 zabbix-agent

zabbix-agent 这里不在细讲，如果使用 Docker或者k8s 部署，可以使用官方镜像 zabbix/zabbix-agent:alpine-3.4.7。也可直接下载官方安装包，部署在宿主机上，这里根据自己实际需要部署客户端。

Zabbix Dashboard

上面部署成功后，根据自己实际环境，设置外网访问k8s集群入口，Zabbix Dashboard 如下展示：

参考链接

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