add bundle:systemd-timers

bundles/systemd-timers/files/check_systemd_timer

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+if [[ -z "$1" ]]
+then
+    echo "Usage: $0 <timer>"
+    exit 3
+fi
+
+if ! [[ -f "/var/lib/systemd-timer-monitored/$1" ]]
+then
+    echo "No status file found"
+    exit 3
+fi
+
+exitcode="$(cat "/var/lib/systemd-timer-monitored/$1")"
+
+echo "Last timer run exited $exitcode"
+
+if [[ $exitcode -ne 0 ]]
+then
+    exit 2
+else
+    exit 0
+fi

bundles/systemd-timers/files/systemd-timer-monitored

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+timer="$1"
+shift
+
+# Simple wrapper script that stores the exit code of a command into a file
+"$@"
+exitcode=$?
+
+echo "$exitcode" > "/var/lib/systemd-timer-monitored/$timer"

bundles/systemd-timers/files/template.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=Service for Timer ${timer}
+After=network.target
+% if config.get('requires', ''):
+Requires=${config['requires']}
+% endif
+
+[Service]
+User=${config.get('user', 'root')}
+Group=${config.get('group', config.get('user', 'root'))}
+% for k, v in sorted(config.get('environment', {}).items()):
+Environment=${k}=${v}
+% endfor
+WorkingDirectory=${config.get('pwd', '/')}
+ExecStart=/usr/local/sbin/systemd-timer-monitored ${timer} ${config['command']}

bundles/systemd-timers/files/template.timer

@@ -0,0 +1,13 @@
+[Unit]
+Description=Timer for Service ${timer}
+
+[Timer]
+OnCalendar=${config['when']}
+% if config.get('persistent', True):
+Persistent=true
+% else:
+Persistent=false
+% endif
+
+[Install]
+WantedBy=timers.target

bundles/systemd-timers/items.py

@@ -0,0 +1,61 @@
+directories = {
+    '/usr/local/lib/systemd/system': {
+        'purge': True,
+        'triggers': {
+            'action:systemd-reload',
+        },
+    },
+    '/var/lib/systemd-timer-monitored': {
+        'mode': '0777',
+    },
+}
+
+files = {
+    '/usr/local/sbin/systemd-timer-monitored': {
+        'mode': '0755',
+    },
+    '/usr/local/share/icinga/plugins/check_systemd_timer': {
+        'mode': '0755',
+    },
+}
+
+for timer, config in node.metadata.get('systemd-timers/timers', {}).items():
+    if config.get('delete', False):
+        action[f'systemd-timer_stop_timer_{timer}'] = {
+            # can't use svc_systemd: here, because that depends on
+            # action:systemd-reload
+            'command': f'systemctl disable --now {timer}.timer',
+            'precedes': {
+                # stop, then delete unit files
+                'directory:/usr/local/lib/systemd/system',
+            },
+        }
+    else:
+        files[f'/usr/local/lib/systemd/system/{timer}.timer'] = {
+            'source': 'template.timer',
+            'content_type': 'mako',
+            'context': {
+                'timer': timer,
+                'config': config,
+            },
+            'triggers': {
+                'action:systemd-reload',
+            },
+        }
+        files[f'/usr/local/lib/systemd/system/{timer}.service'] = {
+            'source': 'template.service',
+            'content_type': 'mako',
+            'context': {
+                'timer': timer,
+                'config': config,
+            },
+            'triggers': {
+                'action:systemd-reload',
+            },
+        }
+        svc_systemd[f'{timer}.timer'] = {
+            'needs': {
+                f'file:/usr/local/lib/systemd/system/{timer}.service',
+                f'file:/usr/local/lib/systemd/system/{timer}.timer',
+            },
+        }

bundles/systemd-timers/metadata.py

@@ -0,0 +1,21 @@
+@metadata_reactor.provides(
+    'icinga2_api/systemd-timers/services',
+)
+def monitoring(metadata):
+    services = {}
+
+    for timer, config in node.metadata.get('systemd-timers/timers', {}).items():
+        if config.get('delete', False):
+            continue
+
+        services[f'SYSTEMD-TIMER {timer}'] = {
+            'command_on_monitored_host': f'/usr/local/share/icinga/plugins/check_systemd_timer {timer}',
+        }
+
+    return {
+        'icinga2_api': {
+            'systemd-timers': {
+                'services': services,
+            },
+        },
+    }

groups/os.py

@@ -28,6 +28,7 @@ groups['linux'] = {
         'sysctl',
         'systemd',
         'systemd-networkd',
+        'systemd-timers',
         'telegraf',
         'users',
     },