2 files changed, 94 insertions, 0 deletions
diff --git a/manifests/subsystem/modprobe/module.pp b/manifests/subsystem/modprobe/module.pp
new file mode 100644
index 0000000..21b7398
--- /dev/null
+++ b/manifests/subsystem/modprobe/module.pp
@@ -0,0 +1,38 @@
+#
+# Handles Linux kernel module loading.
+#
+# Module loading is implemented both for SysV and systemd based systems, to
+# ensure this module is managed in either case.
+#
+# It also remains to be tested whether _both_ /etc/modules and /etc/modules-load.d
+# are processed by recent systemd-based Debian systems; or if there are
+# inconsistencies between the implementation and the documentation:
+#
+#   https://wiki.debian.org/Modules#Automatic_loading_of_modules
+#
+# Anyway, having this configuration in both places does not seem to hurt (much).
+#
+# Check also https://wiki.archlinux.org/title/Kernel_module#Automatic_module_loading
+#            https://unix.stackexchange.com/questions/189670/whats-the-difference-of-etc-modules-load-d-and-etc-modules
+#
+# In the future, this definition can also manage /etc/modprobe.d/ entries.
+#
+define nodo::subsystem::modprobe::module(
+  $ensure = 'present',
+){
+  # Drivetemp module loading for systems using SysV -- /etc/modules - modules(5)
+  file_line { "etc-modules-${name}":
+    path   => "/etc/modules",
+    line   => "${name}",
+    ensure => $ensure,
+  }
+
+  # Drivetemp module loading using systemd's /etc/modules-load.d/ - modules-load.d(5)
+  file { "/etc/modules-load.d/${name}.conf":
+    ensure  => $ensure,
+    owner   => root,
+    group   => root,
+    mode    => '0644',
+    content => "${name}\n",
+  }
+}
diff --git a/manifests/subsystem/sensors.pp b/manifests/subsystem/sensors.pp
new file mode 100644
index 0000000..8a19831
--- /dev/null
+++ b/manifests/subsystem/sensors.pp
@@ -0,0 +1,56 @@
+class nodo::subsystem::sensors {
+  #
+  # SMART monitoring
+  #
+
+  $smartmontools = lookup('nodo::sensors::smartmontools', undef, undef, 'present')
+
+  if $smartmontools == 'present' {
+    class { 'smartmontools': }
+  }
+
+  #
+  # LM Sensors
+  #
+
+  $lm_sensors = lookup('nodo::sensors::lm_sensors', undef, undef, 'present')
+
+  package { [
+    'lm-sensors',
+  ]:
+    ensure => $lm_sensors,
+  }
+
+  #
+  # drivetemp
+  #
+  # Just load this driver and lm-sensors will detect sensors automatically.
+  #
+  # https://www.baeldung.com/linux/hdd-ssd-temperature
+  # https://askubuntu.com/questions/1426482/tool-to-monitor-hdd-temperature-in-ubuntu-server-22-04
+  # https://wiki.archlinux.org/title/Lm_sensors#S.M.A.R.T._drive_temperature
+  # https://github.com/philipl/drivetemp
+
+  $drivetemp = lookup('nodo::sensors::drivetemp', undef, undef, 'present')
+
+  nodo::subsystem::modprobe::module { 'drivetemp':
+    ensure => $drivetemp,
+  }
+
+  #
+  # hddtemp
+  #
+
+  # Deprecated in favor of drivetemp:
+  # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1002484
+  package { [
+    'hddtemp',
+  ]:
+    ensure => $::lsbdistcodename ? {
+      'wheezy'   => present,
+      'buster'   => present,
+      'bullseye' => present,
+      default  => absent,
+    }
+  }
+}