lots of stuff

2026-08-16 14:48:04 +02:00
parent c63db540e8
commit 49fa352476
45 changed files with 32520 additions and 93 deletions
@@ -0,0 +1,105 @@
+#!/bin/bash
+
+set -uo pipefail
+
+textfile_dir={{ node_exporter_textfile_dir }}
+file=${textfile_dir}/services.prom
+tmp=${file}.$$
+
+mkdir -p ${textfile_dir}
+
+declare -A active_count
+declare -A unit_count
+units=""
+
+record() {
+    local service=$1
+    local unit=$2
+    local kind=$3
+    local state=$4
+
+    units+="service_unit_active{service=\"${service}\",unit=\"${unit}\",kind=\"${kind}\"} ${state}"$'\n'
+    unit_count[${service}]=$(( ${unit_count[${service}]:-0} + 1 ))
+    active_count[${service}]=$(( ${active_count[${service}]:-0} + state ))
+}
+
+check_user_unit() {
+    local service=$1
+    local owner=$2
+    local unit=$3
+    local state=0
+
+    if systemctl --user --machine ${owner}@.host is-active --quiet ${unit} 2>/dev/null
+    then
+        state=1
+    fi
+
+    record ${service} ${unit} rootless ${state}
+}
+
+check_system_unit() {
+    local service=$1
+    local unit=$2
+    local state=0
+
+    if systemctl is-active --quiet ${unit} 2>/dev/null
+    then
+        state=1
+    fi
+
+    record ${service} ${unit} system ${state}
+}
+
+check_container() {
+    local service=$1
+    local container=$2
+    local state=0
+
+    if [ "$(podman container inspect -f '{% raw %}{{.State.Running}}{% endraw %}' ${container} 2>/dev/null)" = "true" ]
+    then
+        state=1
+    fi
+
+    record ${service} ${container} container ${state}
+}
+
+{% for service in monitored_services %}
+{% for unit in service.units | default([]) %}
+check_user_unit {{ service.name }} {{ service.owner }} {{ unit }}
+{% endfor %}
+{% for unit in service.system_units | default([]) %}
+check_system_unit {{ service.name }} {{ unit }}
+{% endfor %}
+{% for container in service.containers | default([]) %}
+check_container {{ service.name }} {{ container }}
+{% endfor %}
+{% endfor %}
+
+{
+    echo "# HELP service_unit_active Whether a unit or container backing a service is running."
+    echo "# TYPE service_unit_active gauge"
+    printf '%s' "${units}"
+
+    echo "# HELP service_enabled Whether a service is expected to be running."
+    echo "# TYPE service_enabled gauge"
+{% for service in monitored_services %}
+    echo "service_enabled{service=\"{{ service.name }}\",group=\"{{ service.group }}\"} {{ 1 if service.enabled else 0 }}"
+{% endfor %}
+
+    echo "# HELP service_units_total Number of units or containers backing a service."
+    echo "# TYPE service_units_total gauge"
+    for service in "${!unit_count[@]}"
+    do
+        echo "service_units_total{service=\"${service}\"} ${unit_count[${service}]}"
+    done
+
+    echo "# HELP service_units_active Number of running units or containers backing a service."
+    echo "# TYPE service_units_active gauge"
+    for service in "${!active_count[@]}"
+    do
+        echo "service_units_active{service=\"${service}\"} ${active_count[${service}]}"
+    done
+} > "${tmp}"
+
+chmod 0644 "${tmp}"
+mv "${tmp}" "${file}"