#!/bin/bash # Path where Node Exporter reads custom metrics OUTPUT="/var/lib/node_exporter/textfile_collector/user_metrics.prom" # Ensure directory exists mkdir -p /var/lib/node_exporter/textfile_collector # CPU usage per user echo "# HELP user_cpu CPU usage per user" > $OUTPUT echo "# TYPE user_cpu gauge" >> $OUTPUT ps -eo user,pcpu --no-headers | \ awk '{cpu[$1]+=$2} END {for(u in cpu) print "user_cpu{user=\""u"\"} "cpu[u]}' >> $OUTPUT # Memory usage per user (MB) echo "# HELP user_mem Memory usage per user in MB" >> $OUTPUT echo "# TYPE user_mem gauge" >> $OUTPUT ps -eo user,rss --no-headers | \ awk '{mem[$1]+=$2} END {for(u in mem) print "user_mem{user=\""u"\"} "mem[u]/1024}' >> $OUTPUT