|NO.Z.00025|——————————|^^ 部署 ^^|——|Kubernetes&集群监控.V01|——|Prometheus&Grafana|
一、集群资源监控-监控品台搭建
二、实验环境部署
### --- 准备：下载下列文件并上传至服务器
~~~ configmap.yaml：存储相关的配置文件的存储
~~~ prometheus.deploy.yml：资源限制，端口号等信息点
~~~ prometheus.svc.yml：对外暴露端口，进行外部访问
~~~ rbac-setup.yaml：分配访问权限
~~~ node-exporter.yaml:部署一个守护进程，
[root@k8s-master ~]# ls三、部署守护进程
### --- 部署守护进程
[root@k8s-master ~]# vim node-exporter.yaml
---
apiVersion: apps/v1 # 改一下版本
kind: DaemonSet
metadata:
name: node-exporter
namespace: kube-system
labels:
k8s-app: node-exporter
spec:
selector: # 添加这个模块
matchLabels:
k8s-app: node-exporter
template:
metadata:
labels:
k8s-app: node-exporter
spec:
containers:
- image: prom/node-exporter
name: node-exporter
ports:
- containerPort: 9100
protocol: TCP
name: http
---
apiVersion: v1
kind: Service
metadata:
labels:
k8s-app: node-exporter
name: node-exporter
namespace: kube-system
spec:
ports:
- name: http
port: 9100
nodePort: 31672
protocol: TCP
type: NodePort
selector:
k8s-app: node-exporter~~~ 创建执行
[root@k8s-master ~]# kubectl create -f node-exporter.yaml
daemonset.apps/node-exporter created
service/node-exporter created~~~ 删除操作，不执行
[root@k8s-master ~]# kubectl delete -f node-exporter.yaml
daemonset.apps "node-exporter" deleted
service "node-exporter" deleted ### --- 部署其它的yaml文件
~~~ 部署rbac
[root@k8s-master ~]# kubectl create -f rbac-setup.yaml
clusterrole.rbac.authorization.k8s.io/prometheus created
serviceaccount/prometheus created
clusterrolebinding.rbac.authorization.k8s.io/prometheus created~~~ 部署configmap
[root@k8s-master ~]# kubectl create -f configmap.yaml
configmap/prometheus-config created四、部署prometheus
### --- 部署deployment
[root@k8s-master ~]# vim prometheus.deploy.yml
---
apiVersion: apps/v1 # 更改版本
kind: Deployment
metadata:
labels:
name: prometheus-deployment
name: prometheus
namespace: kube-system
spec:
replicas: 1
selector:
matchLabels:
app: prometheus
template:
metadata:
labels:
app: prometheus
spec:
containers:
- image: prom/prometheus:v2.0.0
name: prometheus
command:
- "/bin/prometheus"
args:
- "--config.file=/etc/prometheus/prometheus.yml"
- "--storage.tsdb.path=/prometheus"
- "--storage.tsdb.retention=24h"
ports:
- containerPort: 9090
protocol: TCP
volumeMounts:
- mountPath: "/prometheus"
name: data
- mountPath: "/etc/prometheus"
name: config-volume
resources:
requests:
cpu: 100m
memory: 100Mi
limits:
cpu: 500m
memory: 2500Mi
serviceAccountName: prometheus
volumes:
- name: data
emptyDir: {}
- name: config-volume
configMap:
name: prometheus-config~~~ 部署pod
[root@k8s-master ~]# kubectl create -f prometheus.deploy.yml
deployment.apps/prometheus created
~~~ 部署svc
[root@k8s-master ~]# kubectl create -f prometheus.svc.yml
service/prometheus created### --- 查看部署结果
[root@k8s-master ~]# kubectl get pods -n kube-system
prometheus-7486bf7f4b-88rvn 1/1 Running 0 92s五、部署grafana
### --- 部署grafana：将下列文件上传至服务器
~~~ grafana-deploy.yaml：部署deploy应用
~~~ grafana-ing.yaml:对外暴露的端口
~~~ grafana-svc.yaml：对外暴露的端口
[root@k8s-master ~]# ls### --- 部署grafana-deploy
[root@k8s-master ~]# vim grafana-deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: grafana-core
namespace: kube-system
labels:
app: grafana
component: core
spec:
replicas: 1
selector:
matchLabels:
app: grafana
component: core
template:
metadata:
labels:
app: grafana
component: core
spec:
containers:
- image: grafana/grafana:4.2.0
name: grafana-core
imagePullPolicy: IfNotPresent
# env:
resources:
# keep request = limit to keep this container in guaranteed class
limits:
cpu: 100m
memory: 100Mi
requests:
cpu: 100m
memory: 100Mi
env:
# The following env variables set up basic auth twith the default admin user and admin password.
- name: GF_AUTH_BASIC_ENABLED
value: "true"
- name: GF_AUTH_ANONYMOUS_ENABLED
value: "false"
# - name: GF_AUTH_ANONYMOUS_ORG_ROLE
# value: Admin
# does not really work, because of template variables in exported dashboards:
# - name: GF_DASHBOARDS_JSON_ENABLED
# value: "true"
readinessProbe:
httpGet:
path: /login
port: 3000
# initialDelaySeconds: 30
# timeoutSeconds: 1
volumeMounts:
- name: grafana-persistent-storage
mountPath: /var
volumes:
- name: grafana-persistent-storage
emptyDir: {}~~~ 部署grafana.pod
[root@k8s-master ~]# kubectl create -f grafana-deploy.yaml
deployment.apps/grafana-core created### --- 部署grafana-svc.yaml
[root@k8s-master ~]# kubectl create -f grafana-svc.yaml
service/grafana created
~~~ 部署grafana-ing.yaml
[root@k8s-master ~]# kubectl create -f grafana-ing.yaml
ingress.extensions/grafana created ### --- 查看
[root@k8s-master ~]# kubectl get pods -n kube-system
grafana-core-768b6bf79c-d4t6w 1/1 Running 0 73s
prometheus-7486bf7f4b-88rvn 1/1 Running 0 9m5s### --- 打开Grafana，配置数据源，导入显示模板
[root@k8s-master ~]# kubectl get svc -n kube-system -o wide
grafana NodePort 10.106.119.250 <none> 3000:30831/TCP 21s app=grafana,component=core
prometheus NodePort 10.111.81.144 <none> 9090:30003/TCP 48s app=prometheus六、grafana初始化配置
### --- grafana初始化配置
~~~ 通过Chrome访问：http://10.10.10.12:30831/login
~~~ # OR ：http://10.10.10.13:32106/login
~~~ 用户名：admin；密码：admin（图一）### --- 添加初始配置（图二）
~~~ 初始图标——>Data Sources——>Add data source:Name: mydb;
~~~ Type:prometheus;Url:http://10.111.81.144:9090：查看到prometheus的ip地址——>END### --- 显示数据的模板
~~~ 初始图标——>Dashboards——>Import——>Grafana.netDashboard:315（固定值）
~~~ ——>Load——>Name：kubernetes cluster monitoring (via Promentheus)可以更改
~~~ ——>Import——>Prometheus：mydb（刚才创建的数据源）——>Import——>END
~~~ 若是ID导入失败可在官网下载*.json文件导入
~~~ 官网地址：https://grafana.com/grafana/dashboards/1860?pg=dashboards&plcmt=featured-sub1grafana初始界面
Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart
——W.S.Landor
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