From 2316917055ec9399966033cc4944f5e5662c0136 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Fri, 24 Sep 2021 22:33:33 +0200
Subject: add prometheus exporter IPMI

---
 roles/monitoring/prometheus/exporter/TODO          |  4 --
 .../prometheus/exporter/blackbox/tasks/main.yml    |  2 +-
 .../prometheus/exporter/ipmi/defaults/main.yml     | 25 ++++++++++++
 .../prometheus/exporter/ipmi/handlers/main.yml     | 16 ++++++++
 .../prometheus/exporter/ipmi/tasks/main.yml        | 47 ++++++++++++++++++++++
 .../exporter/ipmi/templates/config.yml.j2          |  4 ++
 .../prometheus/exporter/ipmi/templates/service.j2  | 32 +++++++++++++++
 7 files changed, 125 insertions(+), 5 deletions(-)
 create mode 100644 roles/monitoring/prometheus/exporter/ipmi/defaults/main.yml
 create mode 100644 roles/monitoring/prometheus/exporter/ipmi/handlers/main.yml
 create mode 100644 roles/monitoring/prometheus/exporter/ipmi/tasks/main.yml
 create mode 100644 roles/monitoring/prometheus/exporter/ipmi/templates/config.yml.j2
 create mode 100644 roles/monitoring/prometheus/exporter/ipmi/templates/service.j2

(limited to 'roles')

diff --git a/roles/monitoring/prometheus/exporter/TODO b/roles/monitoring/prometheus/exporter/TODO
index 79ff8721..57179464 100644
--- a/roles/monitoring/prometheus/exporter/TODO
+++ b/roles/monitoring/prometheus/exporter/TODO
@@ -1,7 +1,3 @@
-IPMI Exporter:
-  - https://github.com/soundcloud/ipmi_exporter
-  - https://packages.debian.org/bullseye/prometheus-ipmi-exporter
-
 Postfix Exporter:
   - https://github.com/kumina/postfix_exporter
   - https://packages.debian.org/bullseye/prometheus-postfix-exporter
diff --git a/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml b/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml
index cab521cc..782c3561 100644
--- a/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml
+++ b/roles/monitoring/prometheus/exporter/blackbox/tasks/main.yml
@@ -35,6 +35,6 @@
       method: http
       http:
         port: 9115
-        path: '/probe'
+        path: /probe
     dest: /etc/prometheus/exporter/exporter/blackbox.yml
   notify: reload prometheus-exporter-exporter
diff --git a/roles/monitoring/prometheus/exporter/ipmi/defaults/main.yml b/roles/monitoring/prometheus/exporter/ipmi/defaults/main.yml
new file mode 100644
index 00000000..9b99f9a5
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/ipmi/defaults/main.yml
@@ -0,0 +1,25 @@
+---
+prometheus_exporter_ipmi_modules:
+  default: {}
+  #   collectors:
+  #   - bmc
+  #   - ipmi
+  #   - chassis
+  #   - dcmi
+  #   - sel
+  #   - sm-lan-mode
+  #   exclude_sensor_ids:
+  #   - 2
+  #   - 29
+  #   - 32
+  # thatspecialhost:
+  #   user: "some_user"
+  #   pass: "secret_pw"
+  #   privilege: "admin"
+  #   driver: "LAN"
+  #   collectors:
+  #   - ipmi
+  #   - sel
+  #   custom_args:
+  #     ipmi:
+  #     - "--bridge-sensors"
diff --git a/roles/monitoring/prometheus/exporter/ipmi/handlers/main.yml b/roles/monitoring/prometheus/exporter/ipmi/handlers/main.yml
new file mode 100644
index 00000000..40a945ae
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/ipmi/handlers/main.yml
@@ -0,0 +1,16 @@
+---
+- name: restart prometheus-ipmi-exporter
+  service:
+    name: prometheus-ipmi-exporter
+    state: restarted
+
+- name: reload prometheus-ipmi-exporter
+  service:
+    name: prometheus-ipmi-exporter
+    state: reloaded
+
+- name: reload prometheus-exporter-exporter
+  service:
+    name: prometheus-exporter-exporter
+    ## TODO: implement reload once exporter_exporter supports this...
+    state: restarted
diff --git a/roles/monitoring/prometheus/exporter/ipmi/tasks/main.yml b/roles/monitoring/prometheus/exporter/ipmi/tasks/main.yml
new file mode 100644
index 00000000..9e63f692
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/ipmi/tasks/main.yml
@@ -0,0 +1,47 @@
+---
+  ## TODO: pin version
+- name: install apt packages
+  apt:
+    name: prom-exporter-ipmi
+    state: present
+
+- name: create config directory
+  file:
+    path: /etc/prometheus/exporter/ipmi
+    state: directory
+
+- name: generate configuration
+  template:
+    src: config.yml.j2
+    dest: /etc/prometheus/exporter/ipmi/config.yml
+  notify: reload prometheus-ipmi-exporter
+
+- name: generate systemd service unit
+  template:
+    src: service.j2
+    dest: /etc/systemd/system/prometheus-ipmi-exporter.service
+  notify: restart prometheus-ipmi-exporter
+
+- name: make sure prometheus-ipmi-exporter is enabled and started
+  systemd:
+    name: prometheus-ipmi-exporter.service
+    daemon_reload: yes
+    state: started
+    enabled: yes
+
+- name: register exporter
+  loop:
+  - name: local
+    path: /metrics
+  - name: remote
+    path: /ipmi
+  loop_control:
+    label: "{{ item.name }}"
+  copy:
+    content: |
+      method: http
+      http:
+        port: 9290
+        path: {{ item.path }}
+    dest: "/etc/prometheus/exporter/exporter/ipmi-{{ item.name }}.yml"
+  notify: reload prometheus-exporter-exporter
diff --git a/roles/monitoring/prometheus/exporter/ipmi/templates/config.yml.j2 b/roles/monitoring/prometheus/exporter/ipmi/templates/config.yml.j2
new file mode 100644
index 00000000..32d0b34a
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/ipmi/templates/config.yml.j2
@@ -0,0 +1,4 @@
+# {{ ansible_managed }}
+
+modules:
+  {{ prometheus_exporter_ipmi_modules | to_nice_yaml(indent=2) | indent(2) }}
diff --git a/roles/monitoring/prometheus/exporter/ipmi/templates/service.j2 b/roles/monitoring/prometheus/exporter/ipmi/templates/service.j2
new file mode 100644
index 00000000..465215e8
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/ipmi/templates/service.j2
@@ -0,0 +1,32 @@
+[Unit]
+Description=Prometheus ipmi exporter
+
+[Service]
+Restart=always
+User=prometheus-exporter
+ExecStart=/usr/bin/prometheus-ipmi-exporter --web.listen-address="127.0.0.1:9290" --config.file=/etc/prometheus/exporter/ipmi/config.yml --freeipmi.path="/usr/sbin"
+ExecReload=/bin/kill -HUP $MAINPID
+
+{# TODO: test which hardening options need to be removed for IPMI to work... #}
+# systemd hardening-options
+AmbientCapabilities=
+CapabilityBoundingSet=
+DeviceAllow=/dev/null rw
+DevicePolicy=strict
+LockPersonality=true
+MemoryDenyWriteExecute=true
+NoNewPrivileges=true
+PrivateDevices=true
+PrivateTmp=true
+ProtectControlGroups=true
+ProtectHome=true
+ProtectKernelModules=true
+ProtectKernelTunables=true
+ProtectSystem=strict
+RemoveIPC=true
+RestrictNamespaces=true
+RestrictRealtime=true
+SystemCallArchitectures=native
+
+[Install]
+WantedBy=multi-user.target
-- 
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