概述：
Prometheus(由go语言(golang)开发)是一套开源的监控&报警&时间序列数据库的组合。适合监控docker容器。因为kubernetes(俗称k8s)的流行带动了prometheus的发展。 时间序列数据特点: 1.性能好 2.存储成本低，高效的压缩算法，节省存储空间，有效降低IO。 Prometheus有着非常高效的时间序列数据存储方法，每个采样数据仅仅占用3.5byte左右空间，上百万条时间序列，30秒间隔，保留60天，大概花了200多G（来自官方数据) 特征：
1.多维度数据模型 2.灵活的查询语言 3.不依赖分布式存储，单个服务器节点是自主的 4.以HTTP方式，通过pull模型拉去时间序列数据 5.也可以通过中间网关支持push模型 6.通过服务发现或者静态配置，来发现目标服务对象 7.支持多种多样的图表和界面展示 
官网下载地址：https://prometheus.io/download/ //下载 wgt https://github.com/prometheus/prometheus/releases/download/v2.35.0/prometheus-2.35.0.linux-amd64.tar.gz //解压 tar -xf prometheus-2.35.0.linux-amd64.tar.gz -C /usr/local //改名 mv prometheus-2.35.0.linux-amd64 prometheus //默认启动 nohup ./prometheus --config.file="/usr/local/prometheus/prometheus.yml" & //端口检查 lsof -i:9090 ss -naltp |grep 9090 //浏览器访问192.168.0.215:9090 //浏览器访问192.168.0.215:9090 默认监控本机
console_libraries目录： consoles目录： LICENSE问价： NOTICE文件： prometheus文件：默认启动的可执行文件 prometheus.yml配置文件：默认配置文件 promtool文件： vi prometheus.yml
global: scrape_interval: 60s # 拉取时间间隔 evaluation_interval: 60s # 告警时间间隔 - job_name: "prometheus" #监控名称取名字 static_configs: - targets: ["localhost:9090"] #被监控机器的ip和端口 指标配置下载：https://prometheus.io/download/ 在其他机器安装node_exporter，端口9100
第一步：下载安装node_exporter
//下载 wget https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz //解压 tar -xf node_exporter-1.3.1.linux-amd64.tar.gz -C /usr/local/ //改名 mv node_exporter-1.3.1.linux-amd64 node_exporter //启动 nohup /usr/local/node_exporter/node_exporter & //浏览器输入，监控数据，端口9100 http://192.168.0.216:9100/metrics 第二步：配置到prometheus
vi /usr/local/prometheus/prometheus.yml - job_name: "node" static_configs: - targets: ["192.168.0.216:9100"] labels: instance: 192.168.0.216 group: node - targets: ["192.168.0.247:9100"] labels: instance: 192.168.0.247 group: node - targets: ["192.168.0.235:9100"] labels: instance: 192.168.0.235 group: node - targets: ["192.168.0.236:9100"] labels: instance: 192.168.0.236 group: node //重启prometheus lsof -i:9090 kill -9 xxxx nohup ./prometheus & 查看：
第一步：下载安装mysqld_exporter
端口：9104
//下载 wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.14.0/mysqld_exporter-0.14.0.linux-amd64.tar.gz //解压 tar -xf mysqld_exporter-0.14.0.linux-amd64.tar.gz -C /usr/local/ //改名 mv mysqld_exporter-0.14.0.linux-amd64 mysqld_exporter //创建mysqld_exporter需要使用mysql的用户名和密码，文件需要手动创建 vi /usr/local/mysqld_exporter/my.cnf [client] host=192.168.0.215 user=root password=123456 port=3306 //启动mysqld_exporter nohup ./mysqld_exporter --config.my-cnf=./my.cnf & //检查端口 lsof -i:9104 第二步：配置到prometheus
vi /usr/local/prometheus/prometheus.yml - job_name: "sg-215-mysql" static_configs: - targets: ["192.168.0.215:9104"] //重启prometheus lsof -i:9090 kill -9 xxxx nohup ./prometheus & 查看：
第一步：下载安装postgres_exporter
//下载 wget https://github.com/prometheus-community/postgres_exporter/releases/download/v0.10.1/postgres_exporter-0.10.1.linux-386.tar.gz //解压 tar -xf postgres_exporter-0.10.1.linux-386.tar.gz -C /usr/local/ //改名 mv postgres_exporter-0.10.1.linux-386 postgres_exporter //添加环境变量 export DATA_SOURCE_NAME="postgresql://postgres:iLoveShark@192.168.0.247:32432/postgres?sslmode=disable" //启动 nohup ./postgres_exporter & //浏览器输入：http://192.168.0.215:9187/metrics 第二步：配置到prometheus
- job_name: "postgreSql" static_configs: - targets: ["192.168.0.215:9187"] labels: instance: 192.168.0.247:32432 group: postgreSql - targets: ["192.168.0.216:9187"] labels: instance: hk-center.pg.rds.aliyuncs.com:5432 group: postgreSql 第一步：下载安装redis_exporter
//下载 wget https://github.com/oliver006/redis_exporter/releases/download/v1.37.0/redis_exporter-v1.37.0.linux-386.tar.gz //解压 tar -xf redis_exporter-v1.37.0.linux-386.tar.gz -C /usr/local/ //改名 mv redis_exporter-v1.37.0.linux-386 redis_exporter //启动 ./redis_exporter -help //查看参数 nohup ./redis_exporter -redis.addr 192.168.0.247:30279 & //无密码 nohup ./redis_exporter -redis.addr 192.168.0.247:30279 -redis.password 123456 & //有密码 //浏览器输入：http://192.168.0.215:9121/metrics 第二步：配置到prometheus
- job_name: "redis" static_configs: - targets: ["192.168.0.215:9121"] labels: instance: 192.168.0.247:30279 group: redis HTTP 测试： 定义 Request Header 信息、判断 Http status / Http Respones Header / Http Body 内容 TCP 测试： 业务组件端口状态监听、应用层协议定义与监听 ICMP 测试： 主机探活机制 POST 测试： 接口联通性 SSL证书过期时间 https://prometheus.io/download/
//下载 wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.20.0/blackbox_exporter-0.20.0.linux-amd64.tar.gz //解压 tar -xf blackbox_exporter-0.20.0.linux-amd64.tar.gz -C /usr/local/ //改名 mv blackbox_exporter-0.20.0.linux-amd64 blackbox_exporter //启动 nohup ./blackbox_exporter & //浏览器输入http://192.168.0.215:9115/ vi /usr/local/prometheus/prometheus.yml
//重启prometheus
lsof -i:9090
kill -9 xxxx
nohup ./prometheus &
网站监控：
- job_name: 'http_status' metrics_path: /probe params: module: [http_2xx] static_configs: - targets: ['https://admin.d.blueshark.com'] labels: instance: admin.d.blueshark.com group: web - targets: ['https://admin.k.blueshark.com'] labels: instance: admin.k.blueshark.com group: web relabel_configs: - source_labels: [__address__] target_label: __param_target - target_label: __address__ replacement: 192.168.0.215:9115 ping检测：
- job_name: 'ping_status' metrics_path: /probe params: module: [icmp] static_configs: - targets: ['192.168.0.249'] labels: instance: 'ping_status' group: 'icmp' relabel_configs: - source_labels: [__address__] target_label: __param_target - target_label: __address__ replacement: 192.168.0.215:9115 端口检测：
- job_name: 'port_status' metrics_path: /probe params: module: [tcp_connect] static_configs: - targets: ['192.168.0.215:80', '192.168.0.216:80', '192.168.0.217:80'] labels: instance: 'port_status' group: 'port' relabel_configs: - source_labels: [__address__] target_label: __param_target - target_label: __address__ replacement: 192.168.0.215:9115 
