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kubernetes集群搭建Zabbix监控平台
2022-07-06 06:43:00 【江湖有缘】
kubernetes集群搭建Zabbix监控平台
一、zabbix介绍
1.zabbix简介
Zabbix是一个基于Web界面的分布式系统监控的企业级开源软件。可以监视各种系统与设备的参数，保障服务器及设备的安全运营。
2.zabbix特点
（1）安装与配置简单。
（2）可视化web管理界面。
（3）免费开源。
（4）支持中文。
（5）自动发现。
（6）分布式监控。
（7）实时绘图。
3.zabbix的主要功能
1.硬件监控。如交换机、路由器、打印机等。
2.系统监控。如CPU,内存，磁盘。硬盘IO，系统负载等。
3.服务监控。如apache,nginx,tomcat,redis,TCP连接数等。
4.性能监控。如网站性能，服务器性能，数据库性能。
5.日志监控。如访问日志，错误日志。
6.安全监控。如用户登录数，本地文件改动，passwd文件变化。
7.网络监控。如端口，SMTP,网络使用率，网络入流量，网络出流量。
4.zabbix架构图
二、检查本地k8s环境
1.检查系统pod运行状态
[[email protected]-master ~]# kubectl get pods -A
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-kube-controllers-7bc6547ffb-2nf66 1/1 Running 1 (9m28s ago) 2d16h
kube-system calico-node-8c4pn 1/1 Running 1 (9m16s ago) 2d16h
kube-system calico-node-f28qq 1/1 Running 1 (9m10s ago) 2d16h
kube-system calico-node-wmc2j 1/1 Running 1 (9m29s ago) 2d16h
kube-system coredns-6d8c4cb4d-6gm4x 1/1 Running 1 (9m28s ago) 2d16h
kube-system coredns-6d8c4cb4d-7vxlz 1/1 Running 1 (9m29s ago) 2d16h
kube-system etcd-k8s-master 1/1 Running 1 (9m30s ago) 2d16h
kube-system kube-apiserver-k8s-master 1/1 Running 1 (9m29s ago) 2d16h
kube-system kube-controller-manager-k8s-master 1/1 Running 1 (9m30s ago) 2d16h
kube-system kube-proxy-8dfw8 1/1 Running 1 (9m29s ago) 2d16h
kube-system kube-proxy-ghzrv 1/1 Running 1 (9m9s ago) 2d16h
kube-system kube-proxy-j867z 1/1 Running 1 (9m15s ago) 2d16h
kube-system kube-scheduler-k8s-master 1/1 Running 1 (9m28s ago) 2d16h
2.检查node节点状态
[[email protected]-master ~]# kubectl get nodes -owide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
k8s-master Ready control-plane,master 2d16h v1.23.1 192.168.3.201 <none> CentOS Linux 7 (Core) 3.10.0-957.el7.x86_64 containerd://1.6.6
k8s-node01 Ready <none> 2d16h v1.23.1 192.168.3.202 <none> CentOS Linux 7 (Core) 3.10.0-957.el7.x86_64 containerd://1.6.6
k8s-node02 Ready <none> 2d16h v1.23.1 192.168.3.203 <none> CentOS Linux 7 (Core) 3.10.0-957.el7.x86_64 containerd://1.6.6
三、配置nfs共享存储
1.安装nfs
yum install -y nfs-utils
2.创建共享目录
mkdir -p /nfs/data
3.配置共享目录
echo "/nfs/data/ *(insecure,rw,sync,no_root_squash)" > /etc/exports
4…启动相关服务
systemctl enable rpcbind
systemctl enable nfs-server
systemctl start rpcbind
5.使配置生效
exportfs -r
1
6.查看nfs
[[email protected]-master ~]# exportfs
/nfs/data <world>
7.其他节点检查nfs共享
[[email protected]-node01 ~]# showmount -e 192.168.3.201
Export list for 192.168.3.201:
/nfs/data *
四、安装zabbix-mysql
1.编写zabbix-mysql的yaml文件
[[email protected]-master zabbix]# cat 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: /nfs/data/zabbix
server: 192.168.3.201
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: 8Gi
---
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: {
}
2.创建命名空间
[[email protected]-master zabbix]# kubectl create namespace zabbix
namespace/zabbix created
3.创建zabbix数据库
kubectl apply -f zabbix_mysql.yaml
4.检查pod状态
[[email protected]-master zabbix]# kubectl get pods -n zabbix
NAME READY STATUS RESTARTS AGE
zabbixdb-69b7cd8dff-jnpjd 1/1 Running 0 11m
五、检查zabbix数据库的service域名
1.运行测试pod
[[email protected]-master ~]# kubectl run busybox --image=busybox:1.28 -- sleep 3600
pod/busybox created
2.进入busybox的pod
[[email protected]-master ~]# kubectl exec -it busybox -- /bin/sh
/ #
3.查看域名解析
[[email protected]-master ~]# kubectl exec -it busybox -- /bin/sh
/ # nslookup zabbixdb.zabbix.svc.cluster.local
Server: 10.96.0.10
Address 1: 10.96.0.10 kube-dns.kube-system.svc.cluster.local
Name: zabbixdb.zabbix.svc.cluster.local
Address 1: 10.96.1.99 zabbixdb.zabbix.svc.cluster.local
/ #
六、安装zabbix-server
1.编写zabbix_server.yaml文件
[[email protected]-master zabbix]# cat zabbix_server.yaml
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: 10.96.1.99
- name: MYSQL_USER
value: zabbix
- name: MYSQL_PASSWORD
value: zabbix
resources: {
}
status: {
}
2.给node02节点打上标签
[[email protected]-master zabbix]# kubectl label nodes k8s-node02 zabbix-server=true
node/k8s-node02 labeled
3.安装zabbix-server
[[email protected]-master zabbix]# kubectl apply -f zabbix_server.yaml
deployment.apps/zabbix-server created
4.检查pod状态
[[email protected]-master zabbix]# kubectl get pods -n zabbix
NAME READY STATUS RESTARTS AGE
zabbix-server-5f48d9d57d-rkr5p 1/1 Running 0 66s
zabbixdb-69b7cd8dff-krt2w 1/1 Running 0 4m22s
七、部署zabbix-web
1.编写zabbix_web.yaml文件
[[email protected]-master zabbix]# cat 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: 192.168.3.201
- 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: {
}
2.安装zabbix-web
[[email protected]-master zabbix]# kubectl apply -f zabbix_web.yaml
deployment.apps/zabbix-web created
service/zabbix-web created
3.查看pod状态
[[email protected]-master zabbix]# kubectl get pods -n zabbix
NAME READY STATUS RESTARTS AGE
zabbix-server-5f48d9d57d-rkr5p 1/1 Running 0 2m36s
zabbix-web-55cd66f74f-9f284 1/1 Running 0 18s
zabbixdb-69b7cd8dff-krt2w 1/1 Running 0 5m52s
八、部署zabbix-agent
1.编辑zabbix_agent.yaml
[[email protected]-master zabbix]# cat zabbix_agent.yaml
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: 192.168.3.201
resources: {
}
2.安装zabbix-agent
kubectl apply -f zabbix_agent.yaml
3.查看pod状态
[[email protected]-master zabbix]# kubectl get pods -n zabbix
NAME READY STATUS RESTARTS AGE
zabbix-agent-h2qwf 1/1 Running 0 3s
zabbix-agent-plnbd 1/1 Running 0 3s
zabbix-server-5f48d9d57d-rkr5p 1/1 Running 0 3m2s
zabbix-web-55cd66f74f-9f284 1/1 Running 0 44s
zabbixdb-69b7cd8dff-krt2w 1/1 Running 0 6m18s
九、访问zabbix的web
1.查看svc
[[email protected]-master zabbix]# kubectl get svc -n zabbix
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
zabbix-web NodePort 10.100.50.7 <none> 8080:30775/TCP 59s
zabbixdb ClusterIP 10.96.1.99 <none> 3306/TCP 6m33s
2.登录web
http://192.168.3.202:30775
3.登录zabbix
初始账号admin/zabbix
4.查询zabbix-server的监控项图表
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