k8s部署prometheus+grafana
部署prometheus
创建namespace
kubectl create namespace prometheus
部署prometheus的pvc
vim prometheus-pvc.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: nfs-pv-prometheus
labels:
pv: nfs-pv-prometheus
annotations:
volume.beta.kubernetes.io/mount-options: "noatime,nodiratime,noresvport,nolock,rsize=1048576,wsize=1048576,hard"
spec:
capacity:
storage: 2Gi
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
nfs:
path: /nfs/prometheus
server: 10.50.195.2
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: nfs-pvc-prometheus
namespace: prometheus
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 2Gi
selector:
matchLabels:
pv: nfs-pv-prometheus
Apply执行
kubectl apply -f prometheus-pvc.yaml
kubectl get pvc -n prometheus
kubectl get pv
部署prometheus的configmap
vim prometheus-cm.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: prometheus-config
namespace: prometheus
data:
prometheus.yml: |
global:
scrape_interval: 15s
evaluation_interval: 15s
scrape_configs:
- job_name: prometheus
honor_timestamps: true
scrape_interval: 15s
scrape_timeout: 15s
scheme: http
metrics_path: /metrics
static_configs:
- targets:
- localhost:9090
- job_name: 'kubernetes-apiservers'
kubernetes_sd_configs:
- role: endpoints
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
relabel_configs:
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
action: keep
regex: default;kubernetes;https
- job_name: 'kubernetes-service-endpoints'
kubernetes_sd_configs:
- role: endpoints
relabel_configs:
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
action: keep
regex: true
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
action: replace
target_label: __scheme__
regex: (https?)
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
action: replace
target_label: __metrics_path__
regex: (.+)
- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
action: replace
target_label: __address__
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
- action: labelmap
regex: __meta_kubernetes_service_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
action: replace
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_service_name]
action: replace
target_label: kubernetes_name
- job_name: 'kubernetes-services'
kubernetes_sd_configs:
- role: service
metrics_path: /probe
params:
module: [http_2xx]
relabel_configs:
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_probe]
action: keep
regex: true
- source_labels: [__address__]
target_label: __param_target
- target_label: __address__
replacement: blackbox-exporter.example.com:9115
- source_labels: [__param_target]
target_label: instance
- action: labelmap
regex: __meta_kubernetes_service_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_service_name]
target_label: kubernetes_name
- job_name: 'kubernetes-ingresses'
kubernetes_sd_configs:
- role: ingress
relabel_configs:
- source_labels: [__meta_kubernetes_ingress_annotation_prometheus_io_probe]
action: keep
regex: true
- source_labels: [__meta_kubernetes_ingress_scheme,__address__,__meta_kubernetes_ingress_path]
regex: (.+);(.+);(.+)
replacement: ${1}://${2}${3}
target_label: __param_target
- target_label: __address__
replacement: blackbox-exporter.example.com:9115
- source_labels: [__param_target]
target_label: instance
- action: labelmap
regex: __meta_kubernetes_ingress_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_ingress_name]
target_label: kubernetes_name
- job_name: 'kubernetes-pods'
kubernetes_sd_configs:
- role: pod
relabel_configs:
- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
action: keep
regex: true
- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_path]
action: replace
target_label: __metrics_path__
regex: (.+)
- source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
action: replace
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
target_label: __address__
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
action: replace
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_pod_name]
action: replace
target_label: kubernetes_pod_name
- job_name: 'mysql_node_exporter_master'
static_configs:
- targets: [10.50.195.2:30015]
- job_name: 'mysql_node_exporter_slave'
static_configs:
- targets: [10.50.195.2:30016]
- job_name: 'k8s-node'
kubernetes_sd_configs:
- role: node
relabel_configs:
- source_labels: [__address__]
regex: '(.*):10250'
replacement: '${1}:9100'
target_label: __address__
action: replace
- action: labelmap
regex: __meta_kubernetes_node_label_(.+)
Apply执行
kubectl apply -f prometheus-cm.yaml
kubectl get cm -n prometheus
部署prometheus的rabc
vim prometheus-rabc.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: prometheus
rules:
- apiGroups: [""]
resources:
- nodes
- nodes/proxy
- services
- endpoints
- pods
verbs: ["get", "list", "watch"]
- apiGroups: [""]
resources:
- configmaps
verbs: ["get"]
- apiGroups:
- extensions
resources:
- ingresses
verbs: ["get", "list", "watch"]
- nonResourceURLs: ["/metrics"]
verbs: ["get"]
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: prometheus
namespace: prometheus
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: prometheus
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: prometheus
subjects:
- kind: ServiceAccount
name: prometheus
namespace: prometheus
Apply执行
kubectl apply -f prometheus-rabc.yaml
部署prometheus的deployment
先给pvc的挂载目录授权
chown 65534.65534 /nfs/prometheus
vim prometheus-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
name: prometheus-deployment
name: prometheus
namespace: prometheus
spec:
replicas: 1
selector:
matchLabels:
app: prometheus
template:
metadata:
labels:
app: prometheus
spec:
containers:
- image: prom/prometheus:v2.27.1
name: prometheus
command:
- "/bin/prometheus"
args:
- "--config.file=/etc/prometheus/prometheus.yml"
- "--storage.tsdb.path=/prometheus"
- "--storage.tsdb.retention=24h"
- "--web.enable-admin-api"
- "--web.enable-lifecycle"
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: 1024Mi
serviceAccountName: prometheus
volumes:
- name: data
persistentVolumeClaim:
claimName: nfs-pvc-prometheus
#需要chown 65534.65534 目录
- name: config-volume
configMap:
name: prometheus-config
Apply执行
kubectl apply -f prometheus-deployment.yaml
kubectl get po -n prometheus
创建prometheus的svc
vim prometheus-svc.yaml
kind: Service
apiVersion: v1
metadata:
labels:
app: prometheus
name: prometheus
namespace: prometheus
spec:
type: NodePort
ports:
- port: 9090
targetPort: 9090
nodePort: 30003
selector:
app: prometheus
Apply执行
kubectl apply -f prometheus-svc.yaml
kubectl get svc -A |grep prometheus
部署grafana
创建grafana的挂载目录
mkdir /nfs/grafana
mkdir /data/grafana/grafana-plugin
chown -R 472:root grafana-plugin/ #不授权启动会报错
部署grafana的pv和pvc
vim grafana-pvc.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
name: nfs-pv-grafana
labels:
pv: nfs-pv-grafana
annotations:
volume.beta.kubernetes.io/mount-options: "noatime,nodiratime,noresvport,nolock,rsize=1048576,wsize=1048576,hard"
spec:
capacity:
storage: 2Gi
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
nfs:
path: /nfs/grafana
server: 10.50.195.2
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: nfs-pvc-grafana
namespace: prometheus
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 2Gi
selector:
matchLabels:
pv: nfs-pv-grafana
---
apiVersion: v1
kind: PersistentVolume
metadata:
name: nfs-pv-grafana-plugin
labels:
pv: nfs-pv-grafana-plugin
annotations:
volume.beta.kubernetes.io/mount-options: "noatime,nodiratime,noresvport,nolock,rsize=1048576,wsize=1048576,hard"
spec:
capacity:
storage: 2Gi
accessModes:
- ReadWriteMany
persistentVolumeReclaimPolicy: Retain
nfs:
path: /nfs/grafana-plugin
server: 10.50.195.2
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: nfs-pvc-grafana-plugin
namespace: prometheus
spec:
accessModes:
- ReadWriteMany
resources:
requests:
storage: 2Gi
selector:
matchLabels:
pv: nfs-pv-grafana-plugin
Apply执行
kubectl apply -f grafana-pvc.yaml
kubectl get pvc -n prometheus
创建grafana的configmap(这里整合了grafana的datasource,dashboard)
vim grafana-cm.yaml
（内容太多，直接放网盘，自行下载）
链接：https://pan.baidu.com/s/1ekAN91n_xMRxwcPixbgFCg?pwd=u663
提取码：u663
Apply执行
kubectl apply -f grafana-cm.yaml
kubectl get cm -n prometheus
创建grafana的deployment
vim grafana.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: grafana-core
namespace: prometheus
labels:
app: grafana
component: core
spec:
selector:
matchLabels:
app: grafana
component: core
replicas: 1
template:
metadata:
labels:
app: grafana
component: core
spec:
containers:
- image: grafana/grafana:7.5.6
name: grafana-core
imagePullPolicy: IfNotPresent
resources:
limits:
cpu: 100m
memory: 100Mi
requests:
cpu: 100m
memory: 100Mi
env:
- name: GF_AUTH_BASIC_ENABLED
value: "true"
- name: GF_AUTH_ANONYMOUS_ENABLED
value: "false"
readinessProbe:
httpGet:
path: /login
port: 3000
volumeMounts:
- name: grafana-persistent-storage
mountPath: /var
- name: grafana-plugin-storage
mountPath: /var/lib/grafana
- mountPath: /etc/grafana/provisioning/datasources
name: grafana-datasources
readOnly: false
- mountPath: /etc/grafana/provisioning/dashboards
name: grafana-dashboards
readOnly: false
- mountPath: /grafana-dashboard-definitions/0/podresource
name: grafana-k8s-pod-resource
readOnly: false
volumes:
- name: grafana-persistent-storage
persistentVolumeClaim:
claimName: nfs-pvc-grafana
- name: grafana-plugin-storage
persistentVolumeClaim:
claimName: nfs-pvc-grafana-plugin
- name: grafana-datasources
configMap:
name: grafana-datasources
- configMap:
name: grafana-dashboards
name: grafana-dashboards
- configMap:
name: grafana-k8s-pod-resource
name: grafana-k8s-pod-resource
Apply执行
kubectl apply -f grafana.yaml
kubectl get po -n prometheus
创建grafana的svc
vim grafana-svc.yaml
apiVersion: v1
kind: Service
metadata:
name: grafana
namespace: prometheus
labels:
app: grafana
component: core
spec:
type: NodePort
ports:
- port: 3000
nodePort: 30004
selector:
app: grafana
component: core
Apply执行
kubectl apply -f grafana-svc.yaml
kubectl get svc -n prometheus
部署mysql-exporter
我的msyql是主备，所以需要做两个exporter
master：
vim mysql-exporter-master.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql-exporter-master
spec:
replicas: 1
selector:
matchLabels:
app: mysql-exporter-master
template:
metadata:
labels:
app: mysql-exporter-master
spec:
containers:
- name: mysql-exporter-master
image: prom/mysqld-exporter:v0.12.1
ports:
- containerPort: 9104
env:
- name: DATA_SOURCE_NAME
value: "root:root@tcp(10.202.1.9:3306)/"
---
apiVersion: v1
kind: Service
metadata:
name: mysql-exporter-master
spec:
selector:
app: mysql-exporter-master
type: NodePort
ports:
- protocol: TCP
port: 9104
targetPort: 9104
nodePort: 30015
Apply执行
kubectl apply -f mysql-exporter-master.yaml
kubectl get po -A |grep mysql
kubectl get svc -A
slave：
vim mysql-exporter-slave.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql-exporter-slave
spec:
replicas: 1
selector:
matchLabels:
app: mysql-exporter-slave
template:
metadata:
labels:
app: mysql-exporter-slave
spec:
containers:
- name: mysql-exporter-slave
image: prom/mysqld-exporter:v0.12.1
ports:
- containerPort: 9104
env:
- name: DATA_SOURCE_NAME
value: "root:root@tcp(111.6.83.37:30308)/"
---
apiVersion: v1
kind: Service
metadata:
name: mysql-exporter-slave
spec:
selector:
app: mysql-exporter-slave
type: NodePort
ports:
- protocol: TCP
port: 9104
targetPort: 9104
nodePort: 30016
Apply执行
kubectl apply -f mysql-exporter-slave.yaml
kubectl get svc -A |grep mysql
kubectl get po -A |grep mysql
在prometheus的cm里添加mysql-exporter的数据源
最后一行添加如图信息，重启cm和deployment
- job_name: 'mysql_node_exporter_master'
static_configs:
- targets: [10.50.195.2:30015]
- job_name: 'mysql_node_exporter_slave'
static_configs:
- targets: [10.50.195.2:30016]
打开prometheus的web页面看是否生效
grafana配置数据源
添加mysql-exporter和宿主机监控模板
添加prometheus数据源
添加监控模板
主机监控
Mysql数据库监控
浙公网安备 33010602011771号