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127 lines
3.9 KiB
YAML
127 lines
3.9 KiB
YAML
---
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- name: Use a newer version of Node exporter for ubuntu 20.04
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block:
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- name: Set the default release
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lineinfile:
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path: /etc/apt/apt.conf.d/01-vendor-ubuntu
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regexp: '^APT::Default-Release '
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line: "APT::Default-Release \"{{ ansible_facts['lsb']['codename'] }}\";"
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- name: Pin node exporter
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copy:
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dest: /etc/apt/preferences.d/pin-prometheus-node-exporter
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content: |
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Package: prometheus-node-exporter
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Pin: release n={{ ansible_facts['lsb']['codename'] }}
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Pin-Priority: -10
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Package: prometheus-node-exporter
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Pin: release n=groovy
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Pin-Priority: 900
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- name: Add the repo from groovy
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apt_repository:
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repo: deb http://fr.archive.ubuntu.com/ubuntu groovy universe
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state: present
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when: ansible_facts['lsb']['id'] == 'Ubuntu' and ansible_facts['lsb']['codename'] == 'focal'
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- name: Install Prometheus Node exporter
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apt:
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name:
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- prometheus-node-exporter
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- prometheus-node-exporter-collectors
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state: latest
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update_cache: true
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install_recommends: false # Do not install smartmontools
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register: apt_result
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retries: 3
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until: apt_result is succeeded
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- name: Ensure /etc/node_exporter exist
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file:
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path: /etc/node_exporter
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state: directory
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group: prometheus
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owner: prometheus
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mode: u=rwx,g=rx,o=rx
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- name: Copy the config folder
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template:
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src: config.yaml
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dest: /etc/node_exporter/config.yaml
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group: prometheus
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owner: prometheus
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mode: u=rw,g=r,o=r
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notify: Restart prometheus-node-exporter
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- name: Copy the CA cert
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copy:
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content: "{{ ca_cert }}"
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dest: /etc/node_exporter/ca.crt
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notify: Restart prometheus-node-exporter
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- name: Generate certificate
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include_role:
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name: generate-cert
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vars:
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directory: /etc/node_exporter/
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cname: "node-exp-{{ lan_address }}"
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owner: prometheus
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group: prometheus
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key_mode: u=rw,g=,o=
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subject_alt_name: "IP:{{ lan_address }}"
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# Need an equivalent to notify here
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- name: Ensured the certificate is monitored
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import_tasks: register-cert-to-monitoring.yml
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vars:
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target: "{{ lan_address }}:9100|node-exp-{{ lan_address }}|{{ ansible_facts['nodename'] }}"
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- name: Setup the arguments for node-exporter
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template:
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src: prometheus-node-exporter
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dest: /etc/default/prometheus-node-exporter
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owner: root
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group: root
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mode: u=rw,g=r,o=r
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notify: Restart prometheus-node-exporter
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vars:
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args:
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- name: web.listen-address
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value: "{{ lan_address }}:9100"
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- name: web.config
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value: /etc/node_exporter/config.yaml
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- name: Add the node to the server targets
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block:
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- name: Get the list of targets of the server
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slurp:
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src: /etc/prometheus/targets/node-targets.json
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register: server_node_target_file
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delegate_to: "{{ appointed_prometheus_server }}"
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- name: Set target variable
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set_fact:
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server_node_target: "{{ server_node_target_file['content'] | b64decode | from_json }}"
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- name: Register the node to the prometheus server
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block:
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- name: Add the node to the targets
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set_fact:
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new_server_node_target: "[{{ server_node_target[0] | combine({'targets': [lan_address + '|' + ansible_facts['nodename']]}, list_merge='append_rp') }}]"
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- name: Put the new target list
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copy:
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content: "{{ new_server_node_target | to_nice_json }}"
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dest: /etc/prometheus/node-targets.json
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delegate_to: "{{ appointed_prometheus_server }}"
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when: (lan_address + '|' + ansible_facts['nodename']) not in server_node_target.0.targets
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- name: Add alert rules for node on the prometheus server
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copy:
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src: alerts-node.yml
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dest: /etc/prometheus/alerts/node.yml
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owner: prometheus
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group: prometheus
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mode: u=rw,g=r,o=r
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delegate_to: "{{ appointed_prometheus_server }}"
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notify: Restart appointed_prometheus_server
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