Prometheus

Prometheus Server是Prometheus组件中的核心部分，负责实现对监控数据的获取，存储以及查询

swarm部署:

https://github.com/vegasbrianc/prometheus

k8s部署:

https://github.com/coreos/kube-prometheus

https://github.com/coreos/prometheus-operator

https://github.com/helm/charts/tree/master/stable/prometheus-operator

高可用:

https://github.com/thanos-io/thanos

prometheus grafana dashboard:

https://github.com/kubernetes-monitoring/kubernetes-mixin

https://github.com/grafana/kubernetes-app

PromQL

metrics类型:

1. counter计数器
2. gauge仪表盘
3. histogram直方图
4. summary摘要