k8s部署zabbix_Kubernetes 中部署 Zabbix
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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