ansible-roles/prometheus
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add redis

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This commit is contained in:
jean-yves.fournier 2021-11-19 12:30:22 +01:00
parent 006ea95681
commit e53304f8e8
7 changed files with 115 additions and 24 deletions
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7
README.md
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@ -13,7 +13,7 @@ Role variables
--------------
| Variable | Type | Choices | Default | Comment |
|----------------------------------------------|---------|----------------------------------------------------------------------------|-------------|-----------------|
|----------------------------------------------|---------|------------------------------------------------------------------------------------|-------------------------|-----------------|
| prometheus_server_enable | string | true / false | | |
| prometheus_server_version | string | | latest | |
| prometheus_server_monitor | string | | | |
@ -22,7 +22,7 @@ Role variables
| prometheus_server_job_name | string | | prometheus | |
| prometheus_server_scrape_interval | string | | 5 | |
| prometheus_server_scrape_timeout | string | | 5 | |
| prometheus_exporter_packages | list | node / mysqld / postgresql / mongodb / phpfpm / apache / haproxy / varnish | | |
| prometheus_exporter_packages | list | node / mysqld / postgresql / mongodb / phpfpm / apache / haproxy / varnish / redis | | |
| prometheus_node_exporter_targets | list | | | |
| prometheus_mysqld_exporter_targets | list | | | |
| prometheus_mongodb_exporter_targets | list | | | |
@ -34,6 +34,9 @@ Role variables
| prometheus_mongodb_exporter_user | string | | | |
| prometheus_mongodb_exporter_pass | string | | | |
| prometheus_server_version | string | | latest | |
| prometheus_redis_exporter_addr | string | | redis://localhost:6379 | |
| prometheus_redis_exporter_user | string | | | |
| prometheus_redis_exporter_password | string | | | |
Dependencies
------------

4
defaults/main.yml
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@ -33,3 +33,7 @@ prometheus_server_scrape_timeout: 5
prometheus_server_version: "latest"
prometheus_blackbox_exporter_host: localhost
prometheus_redis_exporter_addr: "redis://localhost:6379"
prometheus_redis_exporter_user: ""
prometheus_redis_exporter_password: ""

7
handlers/main.yml
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@ -60,3 +60,10 @@
state: restarted
enabled: yes
tags: ['prometheus']
- name: 'prometheus | redis exporter | restart service'
systemd:
name: prometheus-redis-exporter.service
state: restarted
enabled: yes
tags: ['prometheus']

54
tasks/redis_exporter.yml Normal file
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@ -0,0 +1,54 @@
---
- name: 'prometheus | redis exporter | get latest release from GitHub'
shell: curl --silent "https://api.github.com/repos/oliver006/redis_exporter/releases/latest" | jq -r .tag_name | sed "s/v//"
args:
warn: false
register: prometheus_redis_exporter_latest_version
run_once: true
- name: 'prometheus | redis exporter | download'
get_url:
url: https://github.com/oliver006/redis_exporter/releases/download/v{{ prometheus_redis_exporter_version|default(prometheus_redis_exporter_latest_version.stdout) }}/redis_exporter-{{ prometheus_redis_exporter_version|default(prometheus_redis_exporter_latest_version.stdout) }}.linux-amd64.tar.gz
dest: /tmp
- name: 'prometheus | redis exporter | unarchive'
unarchive:
remote_src: yes
src: /tmp/redis_exporter-{{ prometheus_redis_exporter_version|default(prometheus_redis_exporter_latest_version.stdout) }}.linux-amd64.tar.gz
dest: /tmp
- name: 'prometheus | redis exporter | move to /usr/local/bin'
copy:
src: /tmp/redis_exporter-{{ prometheus_redis_exporter_version|default(prometheus_redis_exporter_latest_version.stdout) }}.linux-amd64/redis_exporter
dest: /usr/local/bin/prometheus-redis-exporter
remote_src: yes
owner: root
group: root
mode: 0755
notify:
- 'prometheus | redis exporter | restart service'
- name: 'prometheus | redis exporter | configuration'
template:
src: conf/prometheus-redis-exporter.j2
dest: /etc/default/prometheus-redis-exporter
owner: root
group: root
mode: 0600
register: prometheu_postgres_exporter_configuration
notify:
- 'prometheus | postgres exporter | restart service'
- name: 'prometheus | redis exporter | install unit file to systemd'
template:
src: systemd/prometheus-redis-exporter.service.j2
dest: /etc/systemd/system/prometheus-redis-exporter.service
owner: root
group: root
mode: 0600
- name: 'prometheus | redis exporter | configure systemd to use service'
systemd:
daemon_reload: yes
enabled: yes
name: prometheus-redis-exporter.service

10
templates/conf/prometheus-redis-exporter.j2 Normal file
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@ -0,0 +1,10 @@
# {{ ansible_managed }}
{% if (prometheus_redis_exporter_addr is defined) %}
REDIS_ADDR={{ prometheus_redis_exporter_addr }}
{% endif %}
{% if (prometheus_redis_exporter_addr is defined) %}
REDIS_USER={{ prometheus_redis_exporter_user }}
{% endif %}
{% if (prometheus_redis_exporter_addr is defined) %}
REDIS_PASSWORD={{ prometheus_redis_exporter_password }}
{% endif %}

12
templates/conf/prometheus.yml.j2
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@ -149,6 +149,7 @@ scrape_configs:
{% endif %}
{% if prometheus_varnish_exporter_targets is defined %}
# Varnish exporter #
- job_name: varnish
scrape_interval: 30s
scrape_timeout: 10s
@ -204,3 +205,14 @@ scrape_configs:
{% endif %}
{% endif %}
{% if prometheus_redis_exporter_targets is defined %}
# Redis exporter #
- job_name: redis
scrape_interval: 30s
scrape_timeout: 10s
static_configs:
- targets:
{% for target in prometheus_redis_exporter_targets %}
- {{ target }}:9121
{% endfor %}
{% endif %}

1
templates/systemd/prometheus-redis-exporter.service.j2
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@ -5,6 +5,7 @@ After=network.target
[Service]
Type=simple
ExecStart=/usr/local/bin/prometheus-redis-exporter
EnvironmentFile=/etc/default/prometheus-redis-exporter
[Install]
WantedBy=multi-user.target