100 lines
2.7 KiB
Bash
Executable File
100 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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function usage {
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echo "Usage:
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-u [UNIT name] (required)
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-t Service is triggered by a timer or is a oneshot service. Is allowed to be inactive
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-d A service is allowed to not be enabled"
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}
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UNIT_NAME=""
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IS_TIMER=false
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IS_ALLOWED_DISABLED=false
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# Parse command line arguments
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while getopts "u:td" opt; do
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case ${opt} in
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u )
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UNIT_NAME=$OPTARG
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;;
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t )
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IS_TIMER=true
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;;
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d )
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IS_ALLOWED_DISABLED=true
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;;
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\? )
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usage
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exit 1
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;;
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: )
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echo "Invalid option: $OPTARG requires an argument" 1>&2
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exit 1
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;;
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esac
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done
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shift $((OPTIND -1))
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if [ -z "$UNIT_NAME" ]; then
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echo "Missing unit name."
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usage
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exit -1
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fi
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# Check if the unit exists
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if ! systemctl list-units --full -all 2>/dev/null | grep -Pq "\b$UNIT_NAME\b"; then
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echo "CRITICAL - $UNIT_NAME does not exist"
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exit 2
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fi
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# Check if the unit is enabled
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enabled=$(systemctl is-enabled "$UNIT_NAME")
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if [ "$enabled" != "enabled" ] && [ "$IS_ALLOWED_DISABLED" = false ]; then
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echo "CRITICAL - $UNIT_NAME is not enabled"
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exit 2
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fi
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# Check if the unit is active
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active=$(systemctl is-active "$UNIT_NAME")
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substate=$(systemctl show "$UNIT_NAME" --property=SubState --value)
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exit_code=$(systemctl show "$UNIT_NAME" --property=ExecMainStatus --value)
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if [ "$active" = "activating" ]; then
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echo "WARNING - $UNIT_NAME is activating"
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exit 1
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elif [ "$active" != "active" ] && [ "$IS_TIMER" = false ]; then
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echo "CRITICAL - $UNIT_NAME is not active"
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exit 2
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elif [ "$IS_TIMER" = true ] && [ "$active" = "inactive" ] && [ "$exit_code" != "0" ]; then
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echo "CRITICAL - $UNIT_NAME is inactive with non-zero exit code"
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exit 2
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fi
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# Get service start time
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start_time=$(systemctl show "$UNIT_NAME" --property=ExecMainStartTimestamp --value)
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end_time=$(systemctl show "$UNIT_NAME" --property=ExecMainExitTimestamp --value)
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current_time=$(date +%s)
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start_time_diff_perf=""
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end_time_diff_perf=""
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start_time_str=""
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if [ -n "$start_time" ] && [ "$start_time" != "n/a" ] && [ -z "$start_time" ]; then
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start_time_diff=$((current_time - $(date -d "$start_time" +%s)))
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start_time_diff_perf="| uptime=${start_time_diff}s"
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start_time_str=" Started at $start_time."
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fi
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end_time_str=""
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if [ -n "$end_time" ] && [ "$end_time" != "n/a" ] && [ -z "$end_time" ]; then
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end_time_diff=$((current_time - $(date -d "$end_time" +%s)))
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end_time_diff_perf="| downtime=${end_time_diff}s"
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end_time_str=" Exited at $end_time."
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fi
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if [ "$IS_TIMER" = true ] && { [ "$substate" = "exited" ] || [ "$active" = "inactive" ]; }; then
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echo "OK - $UNIT_NAME is active and exited (returned $exit_code) and enabled.$end_time_str $end_time_diff_perf"
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else
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echo "OK - $UNIT_NAME is active and enabled.$start_time_str $start_time_diff_perf"
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fi
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exit 0
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