+++ /dev/null
-#!/bin/bash
-
-if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
-shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
-set -eE -o pipefail
-trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" exit status: $?, PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
-
-[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
-
-
-usage() {
- cat <<EOF
-Usage: ${0##*/} [-d]
-Install prometheus-node-exporter for debian based system with sysv or systemd
-
--d Skip downloading and installing the latest binary
--s Skip setup: config files, user, init scripts.
--l Listen only on local interface.
--h|--help Print help and exit.
-
-For downloading, requires curl wget and jq
-
-EOF
- exit $1
-}
-
-##### begin command line parsing ########
-
-
-# defaults
-dl_bin=true
-do_setup=true
-listen_address=0.0.0.0
-
-while [[ $1 ]]; do
- case $1 in
- -d) dl_bin=false ;;
- -s) do_setup=false ;;
- -l) listen_address=127.0.0.1 ;;
- -h|--help) usage 0 ;;
- esac
- shift
-done
-readonly dl_bin do_setup
-
-##### end command line parsing ########
-
-if $dl_bin; then
- for p in curl wget jq; do
- if ! type -t $p &>/dev/null; then
- apt-get -y install $p
- fi
- done
-fi
-if $do_setup && ! type -t rsync &>/dev/null; then
- # note: we could use diff or cmp instead.
- apt-get -y install rsync
-fi
-
-sysd_reload=false
-installed_file=false
-
-i() { # install file
- local tmp tmpdir dest="$1"
- local base="${dest##*/}"
- local dir="${dest%/*}"
- if [[ $dir != "$base" ]]; then
- # dest has a directory component
- mkdir -p "$dir"
- fi
- tmpdir=$(mktemp -d)
- cat >$tmpdir/"$base"
- tmp=$(rsync -ic $tmpdir/"$base" "$dest")
- if [[ $tmp ]]; then
- printf "%s\n" "$tmp"
- installed_file=true
- if [[ $dest == /etc/systemd/system/* ]]; then
- sysd_reload=true
- fi
- fi
- rm -rf $tmpdir
-}
-
-
-if $dl_bin; then
- if [[ -s /usr/local/src/node-exporter-url ]]; then
- installed_url=$(cat /usr/local/src/node-exporter-url)
- fi
- url=$(curl -s https://api.github.com/repos/prometheus/node_exporter/releases/latest | jq -r '.assets[].browser_download_url | match(".*linux-amd64.tar.gz$").string')
- if [[ ! $url ]]; then
- echo $0: error failed to get url
- exit 1
- fi
- if [[ $url != "$installed_url" ]]; then
- tmpdir=$(mktemp -d)
- cd $tmpdir
- f=${url##*/}
- wget -nv $url
- tar -xf $f
- dir=${f%.tar.gz}
- install $dir/node_exporter /usr/local/bin/prometheus-node-exporter
- printf "%s\n" "$url" >/usr/local/src/node-exporter-url
- cd
- rm -rf $tmpdir
- fi
-fi
-
-if ! $do_setup; then
- exit 0
-fi
-
-# taken from postinstall script
-if ! getent passwd prometheus &>/dev/null; then
- adduser --quiet --system --home /var/lib/prometheus --no-create-home \
- --group --gecos "Prometheus daemon" prometheus
-fi
-
-
-# textfile collector dir
-mkdir -p /var/lib/prometheus/node-exporter
-
-chown prometheus:prometheus /var/lib/prometheus
-
-
-i /etc/default/prometheus-node-exporter <<EOF
-# Set the command-line arguments to pass to the server.
-# Due to shell scaping, to pass backslashes for regexes, you need to double
-# them (\\d for \d). If running under systemd, you need to double them again
-# (\\\\d to mean \d), and escape newlines too.
-
-# sometime before 1.5 systemd was a default collector
-ARGS="--web.listen-address=${listen_address}:9100 --collector.textfile.directory=/var/lib/prometheus/node-exporter --collector.systemd"
-# to see all possible args, run with --help
-EOF
-
-if [[ -d /etc/systemd/system ]]; then # we are using systemd
-
- # this is just fixing a screwed up state we shouldnt get into normally.
- if [[ -e /etc/init.d/prometheus-node-exporter ]]; then
- sysd_reload=true
- rm -f /etc/init.d/prometheus-node-exporter
- fi
-
-
- #why have
- # this logic to handle both cases: The only differences of the
- # packaged version in t11 is that it creates /var/log/prometheus and a
- # logrotate, but nothing is logged there. And it depends on
- # prometheus-node-exporter-collectors, which is useful, but that
- # package itself depends on prometheus-node-exporter. We have no
- # reason to install prometheus-node-exporter except that
- # dependency. We could fix that, but this is easier. So, we keep
- # handling both cases in case we fix that or maybe run a different
- # distro that doesn't have it.
- if [[ -e /lib/systemd/system/prometheus-node-exporter.service ]]; then
-
- if [[ -e /etc/systemd/system/prometheus.service ]]; then
- rm -f /etc/systemd/system/prometheus.service
- sysd_reload=true
- fi
-
-
- i /etc/systemd/system/prometheus-node-exporter.service.d/override.conf <<'EOF'
-[Unit]
-# needed to continually restart
-StartLimitIntervalSec=0
-
-[Service]
-Restart=always
-# time to sleep before restarting a service
-RestartSec=600
-
-# empty signifies to replace the existing value
-ExecStart=
-ExecStart=/usr/local/bin/prometheus-node-exporter $ARGS
-EOF
- else # we dont have the distro package installed
- i /etc/systemd/system/prometheus-node-exporter.service <<'EOF'
-[Unit]
-Description=Prometheus exporter for machine metrics
-Documentation=https://github.com/prometheus/node_exporter
-
-# addition to the distro package
-StartLimitIntervalSec=0
-
-
-[Service]
-Restart=on-failure
-User=prometheus
-EnvironmentFile=/etc/default/prometheus-node-exporter
-ExecStart=/usr/local/bin/prometheus-node-exporter $ARGS
-ExecReload=/bin/kill -HUP $MAINPID
-TimeoutStopSec=20s
-SendSIGKILL=no
-
-# additions to the distro package
-Restart=always
-RestartSec=600
-
-
-[Install]
-WantedBy=multi-user.target
-EOF
- fi
- if $sysd_reload; then
- systemctl daemon-reload
- fi
- systemctl enable prometheus-node-exporter
- if $installed_file; then
- systemctl restart prometheus-node-exporter
- fi
-else # not using systemd
- i /etc/init.d/prometheus-node-exporter <<'EOF'
-#!/bin/sh
-# kFreeBSD do not accept scripts as interpreters, using #!/bin/sh and sourcing.
-if [ true != "$INIT_D_SCRIPT_SOURCED" ] ; then
- set "$0" "$@"; INIT_D_SCRIPT_SOURCED=true . /lib/init/init-d-script
-fi
-### BEGIN INIT INFO
-# Provides: prometheus-node-exporter
-# Required-Start: $remote_fs
-# Required-Stop: $remote_fs
-# Default-Start: 2 3 4 5
-# Default-Stop: 0 1 6
-# Short-Description: Prometheus exporter for machine metrics
-# Description: Prometheus exporter for machine metrics, written in Go
-# with pluggable metric collectors.
-### END INIT INFO
-
-# Author: Martina Ferrari <tina@debian.org>
-# Author: Guillem Jover <gjover@sipwise.com>
-
-DESC="Prometheus exporter for machine metrics"
-NAME=prometheus-node-exporter
-USER=prometheus
-GROUP=$USER
-DAEMON=/usr/bin/$NAME
-PIDFILE=/run/prometheus/$NAME.pid
-LOGFILE=/var/log/prometheus/$NAME.log
-
-START_ARGS="--no-close --background --make-pidfile"
-STOP_ARGS="--remove-pidfile"
-
-do_start_prepare()
-{
- mkdir -p $(dirname $PIDFILE)
-}
-
-do_start_cmd_override()
-{
- start-stop-daemon --start --quiet --oknodo \
- --exec $DAEMON --pidfile $PIDFILE --user $USER --group $GROUP \
- --chuid $USER:$GROUP $START_ARGS -- $ARGS >>$LOGFILE 2>&1
-}
-
-do_stop_cmd_override()
-{
- start-stop-daemon --stop --quiet --oknodo --retry=TERM/30/KILL/5 \
- --exec $DAEMON --pidfile $PIDFILE --user $USER $STOP_ARGS
-}
-
-alias do_reload=do_reload_sigusr1
-EOF
- chmod +x /etc/init.d/prometheus-node-exporter
-
- mkdir -p /var/log/prometheus
- chown prometheus:prometheus /var/log/prometheus
- update-rc.d prometheus-node-exporter defaults
-
- running=false
- if type -t pgrep &>/dev/null && pgrep -f prometheus-node-exporter &>/dev/null; then
- running=true
- fi
- if $installed_file || ! $running; then
- /etc/init.d/prometheus-node-exporter restart
- fi
-
- i /etc/logrotate.d/prometheus-node-exporter <<'EOF'
-/var/log/prometheus/prometheus-node-exporter.log {
- weekly
- rotate 10
- copytruncate
- compress
- delaycompress
- notifempty
- missingok
-}
-EOF
-
-fi
iankelling.org / git / buildscripts / blobdiff