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Merge pull request 'Configure e-mails alerts sent by prometheus-alertmanager' (#3) from prometheus-email into main

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Reviewed-on: #3
This commit was merged in pull request #3.
This commit is contained in:
Vincent F.
2026-06-13 19:14:48 +02:00
parent 6e5c222116 be3b09ef66
commit 99f7e6e8e0
2 changed files with 136 additions and 62 deletions
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ansible/roles/prometheus/tasks/main.yml
+70 -62
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@@ -1,62 +1,70 @@
---
- name: Load variables
include_vars: "{{ ansible_os_family|lower }}.yml"
- name: Install Prometheus
tags: prometheus-install
ansible.builtin.package:
name: '{{ prometheus_package }}'
state: latest
- name: Add scrape configuration
tags: prometheus-scrape-configure
ansible.builtin.copy:
src: "{{ item.src }}"
dest: "/etc/prometheus/{{ item.dest }}"
loop:
- { src: '../templates/scrape-main.yml', dest: 'scrape-main.yml' }
- { src: '../templates/scrape-blackbox.yml', dest: 'scrape-blackbox.yml' }
notify:
- restart prometheus
- name: Create folder for rules definition
ansible.builtin.file:
path: /etc/prometheus/rules
state: directory
mode: 0755
- name: Add rules configuration
tags: alertmanager-rules-configure
ansible.builtin.copy:
src: "{{ item.src }}"
dest: "{{ alertmanager_rules }}/{{ item.dest }}"
loop:
- { src: '../templates/hosts.rules', dest: 'hosts.rules.yml' }
- { src: '../templates/prometheus.rules', dest: 'prometheus.rules.yml' }
- { src: '../templates/blackbox.rules', dest: 'blackbox.rules.yml' }
notify:
- restart prometheus
- restart alertmanager
- name: Enable Prometheus configuration
tags: prometheus-configure
ansible.builtin.template:
src: prometheus.config.j2
dest: '{{ prometheus_config }}'
validate: promtool check config %s
notify: restart prometheus
- name: Enable Prometheus service
tags: prometheus-enable
ansible.builtin.service:
name: '{{ prometheus_service }}'
state: started
enabled: yes
- name: Enable Alertmanager service
tags: alertmanager-enable
ansible.builtin.service:
name: '{{ alertmanager_service }}'
state: started
enabled: yes
---
- name: Load variables
include_vars: "{{ ansible_os_family|lower }}.yml"
- name: Install Prometheus
tags: prometheus-install
ansible.builtin.package:
name: '{{ prometheus_package }}'
state: latest
- name: Add scrape configuration
tags: prometheus-scrape-configure
ansible.builtin.copy:
src: "{{ item.src }}"
dest: "/etc/prometheus/{{ item.dest }}"
loop:
- { src: '../templates/scrape-main.yml', dest: 'scrape-main.yml' }
- { src: '../templates/scrape-blackbox.yml', dest: 'scrape-blackbox.yml' }
notify:
- restart prometheus
- name: Add alertmanager configuration
tags: alertmanager-configure
ansible.builtin.template:
src: alertmanager.yml.j2
dest: '{{ alertmanager_config }}'
notify:
- restart alertmanager
- name: Create folder for rules definition
ansible.builtin.file:
path: /etc/prometheus/rules
state: directory
mode: 0755
- name: Add rules configuration
tags: alertmanager-rules-configure
ansible.builtin.copy:
src: "{{ item.src }}"
dest: "{{ alertmanager_rules }}/{{ item.dest }}"
loop:
- { src: '../templates/hosts.rules', dest: 'hosts.rules.yml' }
- { src: '../templates/prometheus.rules', dest: 'prometheus.rules.yml' }
- { src: '../templates/blackbox.rules', dest: 'blackbox.rules.yml' }
notify:
- restart prometheus
- restart alertmanager
- name: Enable Prometheus configuration
tags: prometheus-configure
ansible.builtin.template:
src: prometheus.config.j2
dest: '{{ prometheus_config }}'
validate: promtool check config %s
notify: restart prometheus
- name: Enable Prometheus service
tags: prometheus-enable
ansible.builtin.service:
name: '{{ prometheus_service }}'
state: started
enabled: yes
- name: Enable Alertmanager service
tags: alertmanager-enable
ansible.builtin.service:
name: '{{ alertmanager_service }}'
state: started
enabled: yes
ansible/roles/prometheus/templates/alertmanager.yml.j2
+66
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@@ -0,0 +1,66 @@
{{ ansible_managed | comment }}
# See https://prometheus.io/docs/alerting/configuration/ for documentation.
global:
# The smarthost and SMTP sender used for mail notifications.
smtp_smarthost: 'mail.labolyon.fr:587'
smtp_from: 'alerts@labolyon.fr'
smtp_auth_username: 'alerts@labolyon.fr'
smtp_auth_password: {{ lookup('community.general.passwordstore', 'monitoring/e-mail/alerts@labolyon.fr')}}
# The directory from which notification templates are read.
templates:
- '/etc/prometheus/alertmanager_templates/*.tmpl'
# The root route on which each incoming alert enters.
route:
# The labels by which incoming alerts are grouped together. For example,
# multiple alerts coming in for cluster=A and alertname=LatencyHigh would
# be batched into a single group.
#
# To aggregate by all possible labels use '...' as the sole label name.
# This effectively disables aggregation entirely, passing through all
# alerts as-is. This is unlikely to be what you want, unless you have
# a very low alert volume or your upstream notification system performs
# its own grouping. Example: group_by: [...]
group_by: ['alertname', 'cluster', 'service']
# When a new group of alerts is created by an incoming alert, wait at
# least 'group_wait' to send the initial notification.
# This way ensures that you get multiple alerts for the same group that start
# firing shortly after another are batched together on the first
# notification.
group_wait: 30s
# When the first notification was sent, wait 'group_interval' to send a batch
# of new alerts that started firing for that group.
group_interval: 5m
# If an alert has successfully been sent, wait 'repeat_interval' to
# resend them.
repeat_interval: 3h
# A default receiver
receiver: all-admins-email
# All the above attributes are inherited by all child routes and can
# overwritten on each.
# Inhibition rules allow to mute a set of alerts given that another alert is
# firing.
# We use this to mute any warning-level notifications if the same alert is
# already critical.
inhibit_rules:
- source_matchers: [severity="critical"]
target_matchers: [severity="warning"]
# Apply inhibition if the alertname is the same.
# CAUTION:
# If all label names listed in `equal` are missing
# from both the source and target alerts,
# the inhibition rule will apply!
equal: [alertname, cluster, service]
receivers:
- name: 'all-admins-email'
email_configs:
- to: 'mirsal@mirsal.fr'