From dbfbf6b9eea6455c62ca6d2dd4ddbff62b913227 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Sun, 6 Nov 2022 18:15:09 +0100
Subject: monitoring/prometheus: add smokeping-prober

---
 roles/monitoring/prometheus/exporter/meta/main.yml |  2 +
 .../exporter/smokeping/defaults/main.yml           | 10 ++++
 .../exporter/smokeping/handlers/main.yml           | 10 ++++
 .../prometheus/exporter/smokeping/tasks/main.yml   | 58 ++++++++++++++++++++++
 .../exporter/smokeping/templates/config.yml.j2     |  4 ++
 .../exporter/smokeping/templates/service.j2        | 30 +++++++++++
 6 files changed, 114 insertions(+)
 create mode 100644 roles/monitoring/prometheus/exporter/smokeping/defaults/main.yml
 create mode 100644 roles/monitoring/prometheus/exporter/smokeping/handlers/main.yml
 create mode 100644 roles/monitoring/prometheus/exporter/smokeping/tasks/main.yml
 create mode 100644 roles/monitoring/prometheus/exporter/smokeping/templates/config.yml.j2
 create mode 100644 roles/monitoring/prometheus/exporter/smokeping/templates/service.j2

(limited to 'roles/monitoring/prometheus/exporter')

diff --git a/roles/monitoring/prometheus/exporter/meta/main.yml b/roles/monitoring/prometheus/exporter/meta/main.yml
index 31dbd611..704b0f00 100644
--- a/roles/monitoring/prometheus/exporter/meta/main.yml
+++ b/roles/monitoring/prometheus/exporter/meta/main.yml
@@ -13,3 +13,5 @@ dependencies:
     when: "'nut' in (prometheus_exporters_default | union(prometheus_exporters_extra))"
   - role: monitoring/prometheus/exporter/ssl
     when: "'ssl' in (prometheus_exporters_default | union(prometheus_exporters_extra))"
+  - role: monitoring/prometheus/exporter/smokeping
+    when: "'smokeping' in (prometheus_exporters_default | union(prometheus_exporters_extra))"
diff --git a/roles/monitoring/prometheus/exporter/smokeping/defaults/main.yml b/roles/monitoring/prometheus/exporter/smokeping/defaults/main.yml
new file mode 100644
index 00000000..2bf90a2b
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/smokeping/defaults/main.yml
@@ -0,0 +1,10 @@
+---
+# prometheus_exporter_smokeping_version:
+
+# prometheus_exporter_smokeping_targets:
+#   - hosts:
+#     - 1.2.3.4
+#     interval: 1s
+#     network: ip
+#     protocol: icmp
+#     size: 56
diff --git a/roles/monitoring/prometheus/exporter/smokeping/handlers/main.yml b/roles/monitoring/prometheus/exporter/smokeping/handlers/main.yml
new file mode 100644
index 00000000..3ce9c2eb
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/smokeping/handlers/main.yml
@@ -0,0 +1,10 @@
+---
+- name: restart prometheus-smokeping-exporter
+  service:
+    name: prometheus-smokeping-exporter
+    state: restarted
+
+- name: reload nginx
+  service:
+    name: nginx
+    state: reloaded
diff --git a/roles/monitoring/prometheus/exporter/smokeping/tasks/main.yml b/roles/monitoring/prometheus/exporter/smokeping/tasks/main.yml
new file mode 100644
index 00000000..23c5eda5
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/smokeping/tasks/main.yml
@@ -0,0 +1,58 @@
+---
+- name: generate apt pin file for exporter-smokeping package
+  when: prometheus_exporter_smokeping_version is defined
+  copy:
+    dest: "/etc/apt/preferences.d/prom-exporter-smokeping.pref"
+    content: |
+      Package: prom-exporter-smokeping
+      Pin: version {{ prometheus_exporter_smokeping_version }}-1
+      Pin-Priority: 1001
+
+- name: remove apt pin file for exporter-smokeping package
+  when: prometheus_exporter_smokeping_version is not defined
+  file:
+    path: "/etc/apt/preferences.d/prom-exporter-smokeping.pref"
+    state: absent
+
+- name: install apt packages
+  apt:
+    name: "prom-exporter-smokeping{% if prometheus_exporter_smokeping_version is defined %}={{ prometheus_exporter_smokeping_version }}-1{% endif %}"
+    state: present
+    allow_downgrade: yes
+  notify: restart prometheus-smokeping-exporter
+
+- name: create config directory
+  file:
+    path: /etc/prometheus/exporter/smokeping
+    state: directory
+
+- name: generate configuration
+  template:
+    src: config.yml.j2
+    dest: /etc/prometheus/exporter/smokeping/config.yml
+    owner: root
+    group: prometheus-exporter
+    mode: 0640
+  notify: restart prometheus-smokeping-exporter
+
+- name: generate systemd service unit
+  template:
+    src: service.j2
+    dest: /etc/systemd/system/prometheus-smokeping-exporter.service
+  notify: restart prometheus-smokeping-exporter
+
+- name: make sure prometheus-smokeping-exporter is enabled and started
+  systemd:
+    name: prometheus-smokeping-exporter.service
+    daemon_reload: yes
+    state: started
+    enabled: yes
+
+- name: register exporter
+  copy:
+    content: |
+      location = /smokeping {
+          proxy_pass http://127.0.0.1:9374/metrics;
+      }
+    dest: /etc/prometheus/exporter/smokeping.locations
+  notify: reload nginx
diff --git a/roles/monitoring/prometheus/exporter/smokeping/templates/config.yml.j2 b/roles/monitoring/prometheus/exporter/smokeping/templates/config.yml.j2
new file mode 100644
index 00000000..f4d9020a
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/smokeping/templates/config.yml.j2
@@ -0,0 +1,4 @@
+# {{ ansible_managed }}
+
+targets:
+  {{ prometheus_exporter_smokeping_targets | to_nice_yaml(indent=2) | indent(2) }}
diff --git a/roles/monitoring/prometheus/exporter/smokeping/templates/service.j2 b/roles/monitoring/prometheus/exporter/smokeping/templates/service.j2
new file mode 100644
index 00000000..5250f752
--- /dev/null
+++ b/roles/monitoring/prometheus/exporter/smokeping/templates/service.j2
@@ -0,0 +1,30 @@
+[Unit]
+Description=Prometheus smokeping prober
+
+[Service]
+Restart=always
+User=prometheus-exporter
+ExecStart=/usr/bin/prometheus-smokeping-prober --web.listen-address="127.0.0.1:9374" --config.file /etc/prometheus/exporter/smokeping/config.yml
+
+# systemd hardening-options
+AmbientCapabilities=CAP_NET_RAW
+CapabilityBoundingSet=CAP_NET_RAW
+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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