mirror of
https://github.com/RWejlgaard/pez-infra.git
synced 2026-05-06 04:14:43 +00:00
Rasmus "Pez" Wejlgaard
853386ce2f
london-b had both a custom node_exporter.service and the package-managed prometheus-node-exporter.service installed. Both tried to bind port 9100, causing the package version to fail. - Add cleanup tasks to remove custom /etc/systemd/system/node_exporter.service and /usr/local/bin/node_exporter if present - Add node_exporter_extra_collectors variable for configurable collectors - Configure london-b with systemd/processes/sysctl/ethtool/zfs collectors matching its previous custom setup Resolves PESO-109
101 lines
3.6 KiB
YAML
101 lines
3.6 KiB
YAML
---
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# Install node_exporter for Prometheus monitoring.
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# Uses system packages on Linux, pkg on FreeBSD.
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# Optionally binds to Tailscale IP on public-facing hosts.
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# ── Cleanup old custom installs ──────────────────────────────
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- name: Stop and disable custom node_exporter service if present
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ansible.builtin.service:
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name: node_exporter
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state: stopped
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enabled: false
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failed_when: false
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when: ansible_facts["os_family"] == "Debian"
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- name: Remove custom node_exporter service file
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ansible.builtin.file:
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path: /etc/systemd/system/node_exporter.service
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state: absent
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when: ansible_facts["os_family"] == "Debian"
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notify: Reload systemd
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- name: Remove custom node_exporter binary
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ansible.builtin.file:
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path: /usr/local/bin/node_exporter
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state: absent
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when: ansible_facts["os_family"] == "Debian"
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# ── Install ──────────────────────────────────────────────────
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- name: Install prometheus-node-exporter (Debian)
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ansible.builtin.apt:
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name: prometheus-node-exporter
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state: present
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when: ansible_facts["os_family"] == "Debian"
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- name: Install prometheus-node-exporter (Alpine)
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community.general.apk:
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name: prometheus-node-exporter
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state: present
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when: ansible_facts["os_family"] == "Alpine"
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# ── Configure (Debian) ──────────────────────────────────────
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- name: Build ARGS for prometheus-node-exporter
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ansible.builtin.set_fact:
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_node_exporter_args: >-
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{{ (node_exporter_extra_collectors | map('regex_replace', '^(.*)$', '--collector.\1') | list)
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+ (['--web.listen-address=' + ansible_host + ':9100'] if node_exporter_bind_tailscale | bool else []) }}
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when: ansible_facts["os_family"] == "Debian"
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- name: Configure prometheus-node-exporter ARGS (Debian)
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ansible.builtin.lineinfile:
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path: /etc/default/prometheus-node-exporter
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regexp: '^ARGS='
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line: 'ARGS="{{ _node_exporter_args | join(" ") }}"'
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when:
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- ansible_facts["os_family"] == "Debian"
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- (_node_exporter_args | length > 0)
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notify: Restart node-exporter (Debian)
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- name: Enable and start node-exporter (Debian)
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ansible.builtin.service:
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name: prometheus-node-exporter
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state: started
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enabled: true
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when: ansible_facts["os_family"] == "Debian"
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- name: Enable and start node-exporter (Alpine)
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ansible.builtin.service:
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name: node-exporter
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state: started
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enabled: true
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when: ansible_facts["os_family"] == "Alpine"
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# ── FreeBSD ──────────────────────────────────────────────────
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- name: Install node_exporter (FreeBSD)
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community.general.pkgng:
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name: node_exporter
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state: present
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when: ansible_facts["os_family"] == "FreeBSD"
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- name: Enable node_exporter (FreeBSD)
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ansible.builtin.lineinfile:
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path: /etc/rc.conf
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regexp: '^node_exporter_enable='
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line: 'node_exporter_enable="YES"'
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when: ansible_facts["os_family"] == "FreeBSD"
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- name: Configure listen address (FreeBSD)
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ansible.builtin.lineinfile:
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path: /etc/rc.conf
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regexp: '^node_exporter_listen_address='
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line: 'node_exporter_listen_address="{{ ansible_host }}:9100"'
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when:
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- ansible_facts["os_family"] == "FreeBSD"
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- node_exporter_bind_tailscale | bool
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notify: Restart node_exporter (FreeBSD)
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- name: Start node_exporter (FreeBSD)
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ansible.builtin.service:
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name: node_exporter
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state: started
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when: ansible_facts["os_family"] == "FreeBSD"
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