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--- сервис_prometheus [2021/04/19 15:15]
val [prometheus-blackbox-exporter]
+++ сервис_prometheus [2022/02/23 15:43]
val [prometheus-alertmanager]
@@ 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]]
@@ Line 11: / Line 11: @@
 <code>
 # apt install prometheus
+# less /etc/prometheus/prometheus.yml
+</code><code>
+...
+global:
+  scrape_interval:     15s
+...
 </code>
@@ Line 18: / Line 25: @@
 # promtool check config /etc/prometheus/prometheus.yml
-service prometheus restart
+# service prometheus restart
 </code>
@@ Line 36: / Line 43: @@
   * [[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 56: @@
   smtp_from: 'prometheus@server.corpX.un'
   smtp_require_tls: false
+#  smtp_auth_username: 'alertmanager'
+#  smtp_auth_password: 'password'
 ...
   # A default receiver
@@ Line 54: / Line 65: @@
 - 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 113: / Line 127: @@
 ...
 </code>
+  * [[http://server.corpX.un:9090/alerts]]
 ===== Exporters =====
@@ Line 128: / Line 144: @@
 /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 136: / Line 152: @@
 $ cat /sys/class/net/eth1/statistics/rx_bytes
+# TYPE node_network_receive_bytes_total counter
 node_network_receive_bytes_total{device="eth1"}
 </code>
@@ Line 165: / Line 182: @@
   * [[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 184: / Line 202: @@
 # 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 199: / Line 217: @@
         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 215: / Line 234: @@
         target_label: instance
       - target_label: __address__
-        replacement: 127.0.0.1:9115
+        replacement: localhost:9115
 </code>
-  * [[http://10.5.7.100+X:9115/]]
-<code>
   * [[#Проверка конфигурации и перезапуск]]
+  * [[http://server.corpX.un:9115/]] Blackbox Exporter->Logs и [[http://server.corpX.un:9090/graph]]
+<code>
 probe_success...
@@ Line 229: / Line 247: @@
 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 259: / Line 280: @@
 </code><code>
 # cat /etc/prometheus/switchs.yml
+</code><code>
 - targets:
   - switch1
@@ Line 312: / Line 334: @@
 </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 331: / Line 357: @@
         target_label: instance
       - target_label: __address__
-        replacement: server:9116
+        replacement: localhost:9116
 </code>
@@ Line 351: / Line 377: @@
 </code><code>
 ...
-  - job_name: 'Pushgateway'
+  - job_name: 'pushgateway'
     honor_labels: true
     static_configs:
@@ Line 379: / Line 405: @@
 </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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