php prometheus monitor
Published:
服务监控 微服务治理的一个核心需求便是服务可观察性。作为微服务的牧羊人，要做到时刻掌握各项服务的健康状态，并非易事。云原生时代这一领域内涌现出了诸多解决方案。本组件对可观察性当中的重要支柱遥测与监控进行了抽象，方便使用者与既有基础设施快速结合，同时避免供应商锁定。
#php exporter监控
COPY ./exporter/php-fpm-exporter /usr/bin/php-fpm-exporter
COPY ./exporter/nginx-status.conf /etc/nginx/conf.d/nginx-status.conf
COPY --chmod=0600 ./confd/default-supervisor.conf /etc/supervisor/conf.d/default.conf
#开启php监控
RUN set-ex \
&& sed -i '$apm.status_path = /status' /etc/php/fpm/php-fpm.conf \
&& sed -i '$aping.path = /ping' /etc/php/fpm/php-fpm.conf
```
#nginx
```
server {
listen 9999;
server_name localhost;
location /stub_status {
stub_status on;
access_log off;
allow 127.0.0.1;
deny all;
}
location ~ ^/(status|ping)$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
allow 127.0.0.1;
deny all;
}
}
```
PHP FPM配置
pm.status_path = /status ping.path = /ping
#启动exporter （supervisor）
```
[program:nginx-exporter]
command = /usr/bin/nginx-exporter -nginx.scrape-uri "http://127.0.0.1:9999/stub_status"
autostart=true
autorestart=true
priority=992
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stdout
stderr_logfile_maxbytes=0
[program:php-fpm-exporter]
command = /usr/bin/php-fpm-exporter --addr="0.0.0.0:9114" --endpoint="http://127.0.0.1:9999/status"
autostart=true
autorestart=true
priority=992
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stdout
stderr_logfile_maxbytes=0
#Dcokerfile
#开启php status/ping状态配置
sed -i '$apm.status_path = /status' /etc/php/fpm/php-fpm.conf \
sed -i '$aping.path = /ping' /etc/php/fpm/php-fpm.conf
#新增Nginx PHP Status.conf & exporter
COPY ./monitor/nginx-status.conf /etc/nginx/conf.d/nginx-status.conf
COPY ./monitor/nginx-exporter /usr/bin/nginx-exporter
COPY ./monitor/php-fpm-exporter /usr/bin/php-fpm-exporter
#k8s配置 ``` template: metadata: # 添加部分 annotations: prometheus.io/port: “9999” # 对应启动命令中的–addr 参数 prometheus.io/scrape: php-fpm
#Prometheus
```
- job_name: 'kubernetes-php-fpm'
kubernetes_sd_configs:
- role: pod
relabel_configs:
- source_labels: [__meta_kubernetes_pod_annotation_prometheus_io_scrape]
action: keep
regex: php-fpm
- 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: namespace
- source_labels: [__meta_kubernetes_pod_name]
action: replace
target_label: pod
#Nginx监控指标
监控指标 指标含义
nginx_connections_accepted 接受的客户端连接总数
nginx_connections_active 当前客户端连接数
nginx_connections_handled Handled状态的连接数
nginx_connections_reading 读取客户端的连接数
nginx_connections_waiting 等待中的客户端连接数
nginx_connections_writing 回写客户端的连接数
nginx_http_requests_total 客户端请求总数
nginx_up Nginx Exporter是否正常运行
nginxexporter_build_info Nginx Exporter的构建信息
#FPM监控指标
监控指标 指标含义
phpfpm_accepted_connections_total pool接收的请求数量
phpfpm_active_max_processes 最大活跃进程数
phpfpm_listen_queue_connections 已发起但尚未接受的连接数
phpfpm_listen_queue_length_connections 最大挂起连接数
phpfpm_listen_queue_max_connections 监听队列最大连接数
phpfpm_max_children_reached_total 达到进程限制的次数
phpfpm_processes_total{state="active"} 总进程数中活跃连接
phpfpm_processes_total{state="idle"} 总进程数中空闲连接
phpfpm_scrape_failures_total 抓取php fpm时的错误数
"phpfpm_slow_requests_total 0
" 超时request_slowlog_timeout的请求数
phpfpm_up php fpm exporter是否正常
#grafana大盘 https://grafana.com/grafana/dashboards/4912-kubernetes-php-fpm/
#hyperf 通过 Composer 安装组件 composer require hyperf/metric