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--- сервис_prometheus [2021/04/19 13:35]
val [Установка в Debian 10]
+++ сервис_prometheus [2022/02/23 16:38]
val [prometheus-snmp-exporter]
@@ Line 5: / Line 5: @@
   * [[https://www.shellhacks.com/ru/prometheus-delete-time-series-metrics/|Prometheus: Удаление Метрик Временных Рядов]]
-===== Установка в Debian 10 =====
+===== Установка в Debian/Ubuntu =====
-  * [[Сервис MTA#Установка и настройка MTA на обработку почты домена hostname]]
 <code>
 # apt install prometheus
+# less /etc/prometheus/prometheus.yml
+</code><code>
+...
+global:
+  scrape_interval:     15s
+...
 </code>
@@ Line 18: / Line 23: @@
 # promtool check config /etc/prometheus/prometheus.yml
-service prometheus restart
+# service prometheus restart
 </code>
@@ Line 24: / Line 29: @@
   * [[http://server.corpX.un:9090/targets]]
+  * [[http://server:9090/classic/targets]]
   * [[http://192.168.X.10:9090/metrics]]
   * [[http://10.5.N.100+X:9090/graph]]
@@ Line 36: / Line 42: @@
   * [[https://www.digitalocean.com/community/tutorials/how-to-use-alertmanager-and-blackbox-exporter-to-monitor-your-web-server-on-ubuntu-16-04|How To Use Alertmanager And Blackbox Exporter To Monitor Your Web Server On Ubuntu 16.04]]
   * [[https://awesome-prometheus-alerts.grep.to/|Awesome Prometheus alerts]]
+  * [[Сервис MTA#Установка и настройка MTA на обработку почты домена hostname]]
 <code>
@@ Line 47: / Line 55: @@
   smtp_from: 'prometheus@server.corpX.un'
   smtp_require_tls: false
+#  smtp_auth_username: 'alertmanager'
+#  smtp_auth_password: 'password'
 ...
   # A default receiver
@@ Line 54: / Line 64: @@
 - name: 'team-X-mails'
   email_configs:
-  - send_resolved: true
+#  - to: 'student@corpX.un'
-    to: 'student@corpX.un'
+#  - to: 'userX@isp.un'
+    send_resolved: true
 ...
 </code><code>
+# service prometheus-alertmanager restart
 # cat /etc/prometheus/first_rules.yml
 </code><code>
@@ Line 103: / Line 116: @@
 ...
-</code><code>
+</code>
-# promtool check config /etc/prometheus/prometheus.yml
-</code><code>
+  * [[#Проверка конфигурации и перезапуск]]
+<code>
 ...
 Checking /etc/prometheus/first_rules.yml
@@ Line 111: / Line 126: @@
 ...
 </code>
+  * [[http://server.corpX.un:9090/alerts]]
 ===== Exporters =====
@@ Line 126: / Line 143: @@
 /dev/mapper/debian--vg-root  15662008 1877488  12969212  13% /
 ...
+# TYPE node_filesystem_free_bytes gauge
 node_filesystem_free_bytes{device="/dev/mapper/debian--vg-root",fstype="ext4",mountpoint="/"} = (15662008 - 1877488) * 1024
 </code>
@@ Line 133: / Line 150: @@
 <code>
 $ cat /sys/class/net/eth1/statistics/rx_bytes
+  или
+$ cat /sys/class/net/bond0/statistics/rx_bytes
+# TYPE node_network_receive_bytes_total counter
 node_network_receive_bytes_total{device="eth1"}
 </code>
@@ Line 163: / Line 183: @@
   * [[https://geekflare.com/monitor-website-with-blackbox-prometheus-grafana/|How to Monitor Website Performance with Blackbox Exporter and Grafana?]]
   * [[https://habr.com/ru/company/otus/blog/500448/|Prometheus: мониторинг HTTP через Blackbox экспортер]]
-  * [[https://www.robustperception.io/icmp-pings-with-the-blackbox-exporter|ICMP Pings with the Blackbox exporter]], [[https://github.com/prometheus/blackbox_exporter|github blackbox_exporter]], [[POSIX capabilities]] или [[Управление ядром и модулями в Linux#Переменные ядра]]
-=== Пример статической конфигурации ===
 <code>
 # apt install prometheus-blackbox-exporter
+</code>
+=== Пример конфигурации ===
+<code>
 # cat /etc/prometheus/blackbox.yml
 </code><code>
@@ Line 182: / Line 203: @@
 # cat /etc/prometheus/prometheus.yml
 </code><code>
-  - job_name: check_ssh
+...
+  - job_name: check_http
     metrics_path: /probe
     params:
-      module: [ssh_banner]
+      module: [http_2xx]
     static_configs:
       - targets:
-        - switch1:22
+        - https://google.com
-        - switch2:22
+        - https://ya.ru
-        - switch3:22
     relabel_configs:
       - source_labels: [__address__]
@@ Line 197: / Line 218: @@
         target_label: instance
       - target_label: __address__
-        replacement: 127.0.0.1:9115
+        replacement: localhost:9115
-  - job_name: check_http
+  - job_name: check_ssh
     metrics_path: /probe
     params:
-      module: [http_2xx]
+      module: [ssh_banner]
     static_configs:
       - targets:
-        - http://val.bmstu.ru
+        - switch1:22
-        - https://ya.ru
+        - switch2:22
+        - switch3:22
     relabel_configs:
       - source_labels: [__address__]
@@ Line 213: / Line 235: @@
         target_label: instance
       - target_label: __address__
-        replacement: 127.0.0.1:9115
+        replacement: localhost:9115
 </code>
-  * [[http://10.5.7.100+X:9115/]]
+  * [[#Проверка конфигурации и перезапуск]]
+  * [[http://server.corpX.un:9115/]] Blackbox Exporter->Logs и [[http://server.corpX.un:9090/graph]]
 <code>
@@ Line 225: / Line 248: @@
 probe_http_duration_seconds...
 </code>
-=== Пример динамической конфигурации ===
+=== Пример использования file-based service discovery и сервиса ping ===
+  * [[https://www.robustperception.io/icmp-pings-with-the-blackbox-exporter|ICMP Pings with the Blackbox exporter]], [[https://github.com/prometheus/blackbox_exporter|github blackbox_exporter]], [[POSIX capabilities]] или [[Управление ядром и модулями в Linux#Переменные ядра]]
 <code>
 # cat /etc/prometheus/prometheus.yml
@@ Line 255: / Line 281: @@
 </code><code>
 # cat /etc/prometheus/switchs.yml
+</code><code>
 - targets:
   - switch1
@@ Line 261: / Line 288: @@
 </code>
+  * [[#Проверка конфигурации и перезапуск]]
 ==== prometheus-snmp-exporter ====
@@ Line 307: / Line 335: @@
 </code><code>
 # service prometheus-snmp-exporter restart
+</code>
+  * [[http://server.corpX.un:9116/]]
+<code>
 # curl --noproxy 127.0.0.1 'http://127.0.0.1:9116/snmp?target=router&module=snmp_in_out_octets'
 </code><code>
@@ Line 326: / Line 358: @@
         target_label: instance
       - target_label: __address__
-        replacement: server:9116
+        replacement: localhost:9116
-</code><code>
+</code>
-# promtool check config /etc/prometheus/prometheus.yml
-# service prometheus restart
+  * [[#Проверка конфигурации и перезапуск]]
-</code><code>
+<code>
 rate(if_in_octets{ifDescr="FastEthernet1/1",ifIndex="3",instance="router",job="snmp"}[1m])
+  или
+rate(if_in_octets{ifIndex="5",instance="router",job="snmp"}[1m])
 *rate(if_in_octets{ifDescr="FastEthernet1/1",instance="router"}[1m])
+  или
+*rate(if_in_octets{ifDescr="Port-channel1",instance="router"}[1m])
 </code>
@@ Line 346: / Line 382: @@
 </code><code>
 ...
-  - job_name: 'Pushgateway'
+  - job_name: 'pushgateway'
     honor_labels: true
     static_configs:
     - targets: ['localhost:9091']
 </code>
+  * [[#Проверка конфигурации и перезапуск]]
 ==== Пример prometheus pushgateway на bash ====
@@ Line 372: / Line 410: @@
 </code><code>
 ip_dhcp_binding{dhcp_server="router",job="cisco_dhcp",net="192.168"}
+</code><code>
+# crontab -l
+</code><code>
+* * * * * /root/ip_dhcp_binding.sh
 </code>

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