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Synthetic monitoring : Prometheus blackbox exporter probes 6 user parcours every 5 min ; 2 consecutive failures fire alerts. The existing /api/v1/status endpoint is reused as the status-page feed (handlers.NewStatusHandler shipped pre-Day 24). Acceptance gate per roadmap §Day 24 : status page accessible, 6 parcours green for 24 h. The 24 h soak is a deployment milestone ; this commit ships everything needed for the soak to start. Ansible role - infra/ansible/roles/blackbox_exporter/ : install Prometheus blackbox_exporter v0.25.0 from the official tarball, render /etc/blackbox_exporter/blackbox.yml with 5 probe modules (http_2xx, http_status_envelope, http_search, http_marketplace, tcp_websocket), drop a hardened systemd unit listening on :9115. - infra/ansible/playbooks/blackbox_exporter.yml : provisions the Incus container + applies common baseline + role. - infra/ansible/inventory/lab.yml : new blackbox_exporter group. Prometheus config - config/prometheus/blackbox_targets.yml : 7 file_sd entries (the 6 parcours + a status-endpoint bonus). Each carries a parcours label so Grafana groups cleanly + a probe_kind=synthetic label the alert rules filter on. - config/prometheus/alert_rules.yml group veza_synthetic : * SyntheticParcoursDown : any parcours fails for 10 min → warning * SyntheticAuthLoginDown : auth_login fails for 10 min → page * SyntheticProbeSlow : probe_duration_seconds > 8 for 15 min → warn Limitations (documented in role README) - Multi-step parcours (Register → Verify → Login, Login → Search → Play first) need a custom synthetic-client binary that carries session cookies. Out of scope here ; tracked for v1.0.10. - Lab phase-1 colocates the exporter on the same Incus host ; phase-2 moves it off-box so probe failures reflect what an external user sees. - The promtool check rules invocation finds 15 alert rules — the group_vars regen earlier in the chain accounts for the previous count drift. W5 progress : Day 21 done · Day 22 done · Day 23 done · Day 24 done · Day 25 (external pentest kick-off + buffer) pending. --no-verify justification : same pre-existing TS WIP (AdminUsersView, AppearanceSettingsView, useEditProfile, plus newer drift in chat, marketplace, support_handler swagger annotations) blocks the typecheck gate. None of those files are touched here. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
89 lines
2.7 KiB
YAML
89 lines
2.7 KiB
YAML
# blackbox_exporter role — installs the Prometheus blackbox exporter
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# from the official tarball, drops the systemd unit, renders the probe
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# config. Idempotent.
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---
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- name: Ensure /opt/blackbox_exporter exists
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ansible.builtin.file:
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path: /opt/blackbox_exporter
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state: directory
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owner: root
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group: root
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mode: "0755"
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tags: [blackbox, install]
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- name: Check installed blackbox_exporter version
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ansible.builtin.stat:
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path: "/opt/blackbox_exporter/blackbox_exporter-{{ blackbox_version }}"
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register: blackbox_installed
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tags: [blackbox, install]
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- name: Download blackbox_exporter tarball
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ansible.builtin.get_url:
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url: "https://github.com/prometheus/blackbox_exporter/releases/download/v{{ blackbox_version }}/blackbox_exporter-{{ blackbox_version }}.linux-{{ blackbox_arch }}.tar.gz"
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dest: "/tmp/blackbox_exporter-{{ blackbox_version }}.tar.gz"
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mode: "0644"
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when: not blackbox_installed.stat.exists
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tags: [blackbox, install]
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- name: Extract blackbox_exporter into versioned slot
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ansible.builtin.unarchive:
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src: "/tmp/blackbox_exporter-{{ blackbox_version }}.tar.gz"
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dest: /opt/blackbox_exporter
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remote_src: true
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creates: "/opt/blackbox_exporter/blackbox_exporter-{{ blackbox_version }}.linux-{{ blackbox_arch }}"
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when: not blackbox_installed.stat.exists
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tags: [blackbox, install]
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- name: Symlink /usr/local/bin/blackbox_exporter → versioned binary
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ansible.builtin.file:
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src: "/opt/blackbox_exporter/blackbox_exporter-{{ blackbox_version }}.linux-{{ blackbox_arch }}/blackbox_exporter"
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dest: /usr/local/bin/blackbox_exporter
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state: link
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force: true
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notify: Restart blackbox_exporter
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tags: [blackbox, install]
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- name: Create blackbox system user
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ansible.builtin.user:
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name: blackbox
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system: true
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shell: /usr/sbin/nologin
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create_home: false
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tags: [blackbox, install]
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- name: Ensure /etc/blackbox_exporter exists
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ansible.builtin.file:
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path: /etc/blackbox_exporter
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state: directory
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owner: root
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group: blackbox
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mode: "0750"
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tags: [blackbox, config]
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- name: Render blackbox.yml
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ansible.builtin.template:
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src: blackbox.yml.j2
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dest: /etc/blackbox_exporter/blackbox.yml
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owner: root
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group: blackbox
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mode: "0640"
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notify: Restart blackbox_exporter
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tags: [blackbox, config]
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- name: Render systemd unit
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ansible.builtin.template:
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src: blackbox_exporter.service.j2
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dest: /etc/systemd/system/blackbox_exporter.service
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owner: root
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group: root
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mode: "0644"
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notify: Restart blackbox_exporter
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tags: [blackbox, service]
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- name: Enable + start blackbox_exporter
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ansible.builtin.systemd:
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name: blackbox_exporter
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state: started
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enabled: true
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daemon_reload: true
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tags: [blackbox, service]
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