摘要：
背景描述：Prometheus由kube Prometheus部署，即通过servicemonitor的方式监控新的监控项目。
背景说明
prometheus 使用的是kube-prometheus 部署的，也就是通过servicemonitor 的方式监控新的监控项目。mysql export 插件通过helm 部署的 pod service servicemonitor 等资源。
mysql-export 安装配置
通过helm 形式部署
添加仓库，下载包
helm repo add azure http://mirror.azure.cn/kubernetes/charts/
helm repo update
helm pull azure/prometheus-mysql-exporter
tar -xvf prometheus-mysql-exporter-0.7.1.tgz
配置
cp prometheus-mysql-exporter/values.yaml prometheus-mysql-exporter/values-117.yaml
vi prometheus-mysql-exporter/values-117.yaml
serviceMonitor:
# enabled should be set to true to enable prometheus-operator discovery of this service
enabled: true
# interval is the interval at which metrics should be scraped
interval: 30s
# scrapeTimeout is the timeout after which the scrape is ended
scrapeTimeout: 10s
# additionalLabels is the set of additional labels to add to the ServiceMonitor
additionalLabels: {}
jobLabel: ""
targetLabels: []
podTargetLabels: []
metricRelabelings: []
mysql:
db: ""
host: "52.13.22.91"
param: ""
pass: "xxxxxxx"
port: 3306
protocol: ""
user: "root"
existingSecret: false
部署
helm install m91 prometheus-mysql-exporter -f prometheus-mysql-exporter/values-91.yaml ( 注意此时的命名空间是默认的)
deployment pod service endpoint servicemonitor 一并创建了