Prometheus配置文件
在prometheus监控系统,prometheus的职责是采集,查询和存储和推送报警到alertmanager。
默认配置文件
global: # 全局配置
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
# scrape_timeout is set to the global default (10s).
# Alertmanager configuration
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
# The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
- job_name: 'prometheus'
# metrics_path defaults to '/metrics'
# scheme defaults to 'http'.
static_configs:
- targets: ['localhost:9090']
- global: 指定的是prometheus的全局配置,比如采集间隔,抓取超时时间等。
- rule_files: 指定报警规则文件, prometheus根据这些规则信息,会推送报警信息到alertmanager中。
- scrape_configs: 指定抓取配置,prometheus的数据采集通过此片段配置。
- alerting: 指定报警配置, 这里主要是指定prometheus将报警规则推送到指定的alertmanager实例地址。
- remote_write: 指定后端的存储的写入api地址。
- remote_read: 指定后端的存储的读取api地址。
scrapy_config片段主要参数
scrape_config 指定一组目标和参数, 目标就是实例,指定采集的端点, 参数描述如何采集这些实例, 主要参数如下
- scrape_interval: 抓取间隔,默认继承global值。
- scrape_timeout: 抓取超时时间,默认继承global值。
- metric_path: 抓取路径, 默认是/metrics
- scheme: 指定采集使用的协议,http或者https。
- params: 指定url参数。
- basic_auth: 指定认证信息。
- *_sd_configs: 指定服务发现配置
- static_configs: 静态指定服务job。
- relabel_config: relabel设置。
static_configs样例
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: "node"
static_configs:
- targets:
- "192.168.100.10:20001"
- "192.168.100.11:20001
- "192.168.100.12:20001"
file_sd_configs样例
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: "node"
file_sd_configs:
- refresh_interval: 1m
files:
- "/usr/local/prometheus/prometheus/conf/node*.yml"
# 独立文件配置如下
cat conf/node-dis.conf
- targets:
- "192.168.100.10:20001"
- "192.168.100.11:20001"
- "192.168.100.12:20001"
或者可以这样配置
[root@node00 conf]# cat node-dis.yml
- targets:
- "192.168.100.10:20001"
labels:
hostname: node00
- targets:
- "192.168.100.11:20001"
labels:
hostname: node01
- targets:
- "192.168.100.12:20001"
labels:
hostname: node02
通过file_fd_files 配置后我们可以在不重启prometheus的前提下, 修改对应的采集文件(node_dis.yml), 在特定的时间内(refresh_interval),prometheus会完成配置信息的载入工作。
consul_sd_file样例
scrape_configs:
- job_name: 'prometheus'
static_configs:
- targets: ['localhost:9090']
- job_name: "node"
consul_sd_configs:
- server: localhost:8500
services:
- prometheus-node
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