Installation node exporter
Nous créons le compte prometheus
sudo useradd -M -r -s /bin/false prometheus
Nous téléchargeons le binaire depuis le site prometheus.io
wget https://github.com/prometheus/node_exporter/releases/download/v1.1.2/node_exporter-1.1.2.linux-amd64.tar.gz
Nous décompressons l'archive et plaçons le binaire dans /etc/local/bin
tar xzf node_exporter-1.1.2.linux-amd64.tar.gz sudo chown -v prometheus: node_exporter-1.1.2.linux-amd64/node_exporter sudo mv node_exporter /usr/local/bin/
Nous créons le fichier d'arguments
sudo vi /etc/default/prometheus-node-exporter
Nous y ajoutons le contenu suivant
# Set the command-line arguments to pass to the server. # Due to shell scaping, to pass backslashes for regexes, you need to double # them (\\d for \d). If running under systemd, you need to double them again # (\\\\d to mean \d), and escape newlines too. ARGS="" # Prometheus-node-exporter supports the following options: # # --collector.diskstats.ignored-devices="^(ram|loop|fd|(h|s|v|xv)d[a-z]|nvme\\d+n\\d+p)\\d+$" # Regexp of devices to ignore for diskstats. # --collector.filesystem.ignored-mount-points="^/(dev|proc|run|sys|mnt|media|var/lib/docker)($|/)" # Regexp of mount points to ignore for filesystem # collector. # --collector.filesystem.ignored-fs-types="^(autofs|binfmt_misc|cgroup|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|mqueue|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|sysfs|tracefs)$" # Regexp of filesystem types to ignore for # filesystem collector. # --collector.netdev.ignored-devices="^lo$" # Regexp of net devices to ignore for netdev # collector. # --collector.netstat.fields="^(.*_(InErrors|InErrs)|Ip_Forwarding|Ip(6|Ext)_(InOctets|OutOctets)|Icmp6?_(InMsgs|OutMsgs)|TcpExt_(Listen.*|Syncookies.*)|Tcp_(ActiveOpens|PassiveOpens|RetransSegs|CurrEstab)|Udp6?_(InDatagrams|OutDatagrams|NoPorts))$" # Regexp of fields to return for netstat # collector. # --collector.ntp.server="127.0.0.1" # NTP server to use for ntp collector # --collector.ntp.protocol-version=4 # NTP protocol version # --collector.ntp.server-is-local # Certify that collector.ntp.server address is the # same local host as this collector. # --collector.ntp.ip-ttl=1 IP TTL to use while sending NTP query # --collector.ntp.max-distance=3.46608s # Max accumulated distance to the root # --collector.ntp.local-offset-tolerance=1ms # Offset between local clock and local ntpd time # to tolerate # --path.procfs="/proc" procfs mountpoint. # --path.sysfs="/sys" sysfs mountpoint. # --collector.qdisc.fixtures="" # test fixtures to use for qdisc collector # end-to-end testing # --collector.runit.servicedir="/etc/service" # Path to runit service directory. # --collector.supervisord.url="http://localhost:9001/RPC2" # XML RPC endpoint. # --collector.systemd.unit-whitelist=".+" # Regexp of systemd units to whitelist. Units must # both match whitelist and not match blacklist to # be included. # --collector.systemd.unit-blacklist=".+(\\.device|\\.scope|\\.slice|\\.target)" # Regexp of systemd units to blacklist. Units must # both match whitelist and not match blacklist to # be included. # --collector.systemd.private # Establish a private, direct connection to # systemd without dbus. # --collector.textfile.directory="/var/lib/prometheus/node-exporter" # Directory to read text files with metrics from. # --collector.vmstat.fields="^(oom_kill|pgpg|pswp|pg.*fault).*" # Regexp of fields to return for vmstat collector. # --collector.wifi.fixtures="" # test fixtures to use for wifi collector metrics # --collector.arp Enable the arp collector (default: enabled). # --collector.bcache Enable the bcache collector (default: enabled). # --collector.bonding Enable the bonding collector (default: enabled). # --collector.buddyinfo Enable the buddyinfo collector (default: # disabled). # --collector.conntrack Enable the conntrack collector (default: # enabled). # --collector.cpu Enable the cpu collector (default: enabled). # --collector.diskstats Enable the diskstats collector (default: # enabled). # --collector.drbd Enable the drbd collector (default: disabled). # --collector.edac Enable the edac collector (default: enabled). # --collector.entropy Enable the entropy collector (default: enabled). # --collector.filefd Enable the filefd collector (default: enabled). # --collector.filesystem Enable the filesystem collector (default: # enabled). # --collector.hwmon Enable the hwmon collector (default: enabled). # --collector.infiniband Enable the infiniband collector (default: # enabled). # --collector.interrupts Enable the interrupts collector (default: # disabled). # --collector.ipvs Enable the ipvs collector (default: enabled). # --collector.ksmd Enable the ksmd collector (default: disabled). # --collector.loadavg Enable the loadavg collector (default: enabled). # --collector.logind Enable the logind collector (default: disabled). # --collector.mdadm Enable the mdadm collector (default: enabled). # --collector.meminfo Enable the meminfo collector (default: enabled). # --collector.meminfo_numa Enable the meminfo_numa collector (default: # disabled). # --collector.mountstats Enable the mountstats collector (default: # disabled). # --collector.netdev Enable the netdev collector (default: enabled). # --collector.netstat Enable the netstat collector (default: enabled). # --collector.nfs Enable the nfs collector (default: enabled). # --collector.nfsd Enable the nfsd collector (default: enabled). # --collector.ntp Enable the ntp collector (default: disabled). # --collector.qdisc Enable the qdisc collector (default: disabled). # --collector.runit Enable the runit collector (default: disabled). # --collector.sockstat Enable the sockstat collector (default: # enabled). # --collector.stat Enable the stat collector (default: enabled). # --collector.supervisord Enable the supervisord collector (default: # disabled). # --collector.systemd Enable the systemd collector (default: enabled). # --collector.tcpstat Enable the tcpstat collector (default: # disabled). # --collector.textfile Enable the textfile collector (default: # enabled). # --collector.time Enable the time collector (default: enabled). # --collector.uname Enable the uname collector (default: enabled). # --collector.vmstat Enable the vmstat collector (default: enabled). # --collector.wifi Enable the wifi collector (default: enabled). # --collector.xfs Enable the xfs collector (default: enabled). # --collector.zfs Enable the zfs collector (default: enabled). # --collector.timex Enable the timex collector (default: enabled). # --web.listen-address=":9100" # Address on which to expose metrics and web # interface. # --web.telemetry-path="/metrics" # Path under which to expose metrics. # --log.level="info" Only log messages with the given severity or # above. Valid levels: [debug, info, warn, error, # fatal] # --log.format="logger:stderr" # Set the log target and format. Example: # "logger:syslog?appname=bob&local=7" or # "logger:stdout?json=true"
Nous créons le fichier systemd
sudo vi /etc/systemd/system/prometheus-node-exporter.service
Nous y ajoutons le contenu suivant
[Unit] Description=Prometheus exporter for machine metrics Documentation=https://github.com/prometheus/node_exporter [Service] Restart=always User=prometheus EnvironmentFile=/etc/default/prometheus-node-exporter ExecStart=/usr/local/bin/node_exporter $ARGS ExecReload=/bin/kill -HUP $MAINPID TimeoutStopSec=20s SendSIGKILL=no [Install] WantedBy=multi-user.target
Nous rechargeons la configuration du démon systemd
sudo systemctl daemon-reload
Nous activons et lançons le service
sudo systemctl enable --now prometheus-node-exporter
Pour s'assurer qu'il fonctionne bien, saisissez dans votre navigateur
http://monserveur:9100/metrics