network/node_exporter: Added (Exporter for machine metrics).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

network/node_exporter/README

@@ -0,0 +1,25 @@
+Node exporter is a Go program that collects and exports metrics from
+ *NIX kernels to Prometheus. It supports various collectors for CPU,
+disk, network, filesystem, and more.
+
+To have the node_exporter daemon start with your host,
+add to /etc/rc.d/rc.local:
+
+  if [ -x /etc/rc.d/rc.node_exporter ]; then
+    /etc/rc.d/rc.node_exporter start
+  fi
+
+To enable TLS, create file /etc/node_exporter/web.yml containing:
+
+  tls_server_config:
+    cert_file: /etc/node_exporter/node_exporter.crt
+    key_file: /etc/node_exporter/node_exporter.key
+
+and place key and cert to the same directory.
+In /etc/default/node_exporter modify NODE_EXPORTER_ARGS to:
+
+  NODE_EXPORTER_ARGS="--web.config.file=/etc/node_exporter/web.yml"
+
+
+NOTE: google-go-lang is only needed at compile time - not needed for
+runtime.

network/node_exporter/config/node_exporter.default

@@ -0,0 +1,5 @@
+# Set the command-line arguments to pass to the server.
+NODE_EXPORTER_ARGS=""
+
+# Run as specific user (default nobody)
+#NODE_EXPORTER_USER=nobody

network/node_exporter/config/rc.node_exporter

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+#!/bin/sh
+#
+# Node Exporter startup script for Slackware Linux
+#
+
+BASE=node_exporter
+SERVER=/usr/bin/${BASE}
+
+# Default options.
+if [ -f /etc/default/node_exporter ]; then
+  . /etc/default/node_exporter
+fi
+
+NODE_EXPORTER_USER=${NODE_EXPORTER_USER:=nobody}
+NODE_EXPORTER_ARGS=${NODE_EXPORTER_ARGS:=""}
+NODE_EXPORTER_LOG_FACILITY=${NODE_EXPORTER_LOG_FACILITY:=daemon.info}
+NODE_EXPORTER_PID=/var/run/node_exporter/node_exporter.pid
+
+# Check if server is present.
+if [ ! -x ${SERVER} ]; then
+  echo "${SERVER} not present or not executable"
+  exit 1
+fi
+
+# Check if daemon is present.
+if [ ! -x /usr/bin/daemon ]; then
+  echo "/usr/bin/daemon not present or not executable"
+  echo "> slackpkg install daemon"
+  exit 1
+fi
+
+wait_for_pid () {
+  try=0
+ 
+  while test $try -lt 5 ; do
+    case "$1" in
+      'created')
+      if [ -f "$2" ] ; then
+        try=''
+        break
+      fi
+      ;;
+ 
+      'removed')
+      if [ ! -f "$2" ] ; then
+        try=''
+        break
+      fi
+      ;;
+    esac
+ 
+    echo -n .
+    try=`expr $try + 1`
+    sleep 1
+ 
+  done
+}
+
+node_exporter_start() {
+  if [ -f $NODE_EXPORTER_PID ]; then
+    echo "$NODE_EXPORTER_PID file exists, $BASE is probably running"
+    exit 0
+  else
+    echo -n "Starting ${BASE} ..."
+    daemon --user=$NODE_EXPORTER_USER \
+	   --pidfile=$NODE_EXPORTER_PID \
+	   --output=$NODE_EXPORTER_LOG_FACILITY -- \
+	   $SERVER $NODE_EXPORTER_ARGS
+
+    wait_for_pid created $NODE_EXPORTER_PID
+
+    if [ -n "$try" ] ; then
+      echo " failed"
+      exit 1
+    else
+      echo " done"
+    fi
+
+  fi
+}
+
+node_exporter_stop() {
+  echo -n "Stopping ${BASE} ..."
+  if [ -f $NODE_EXPORTER_PID ]; then
+    kill $(cat $NODE_EXPORTER_PID)
+
+    wait_for_pid removed $NODE_EXPORTER_PID
+
+    if [ -n "$try" ] ; then
+      echo " failed"
+      exit 1
+    else
+      echo " done"
+    fi
+  else
+    echo "not running"
+  fi 
+}
+
+node_exporter_restart() {
+  node_exporter_stop
+  node_exporter_start
+}
+
+node_exporter_status() {
+  if [ -f $NODE_EXPORTER_PID ]; then
+    echo "Status of ${BASE}: running"
+  else
+    echo "Status of ${BASE}: stopped"
+  fi
+}
+
+
+case "$1" in
+  'start')
+    node_exporter_start
+    ;;
+  'stop')
+    node_exporter_stop
+    ;;
+  'restart')
+    node_exporter_restart
+    ;;
+  'status')
+    node_exporter_status
+    ;;
+  *)
+    echo "Usage: $0 {start|stop|restart|status}"
+esac
+
+exit 0

network/node_exporter/doinst.sh

@@ -0,0 +1,26 @@
+config() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  # If there's no config file by that name, mv it over:
+  if [ ! -r $OLD ]; then
+    mv $NEW $OLD
+  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
+    # toss the redundant copy
+    rm $NEW
+  fi
+  # Otherwise, we leave the .new copy for the admin to consider...
+}
+
+preserve_perms() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  if [ -e $OLD ]; then
+    cp -a $OLD ${NEW}.incoming
+    cat $NEW > ${NEW}.incoming
+    mv ${NEW}.incoming $NEW
+  fi
+  config $NEW
+}
+
+preserve_perms etc/rc.d/rc.node_exporter.new
+config etc/default/node_exporter.new

network/node_exporter/node_exporter.SlackBuild

@@ -0,0 +1,92 @@
+#!/bin/bash
+
+# Slackware build script for node_exporter
+
+# Copyright 2024 Petr Valenta <petr@jevklidu.cz>
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
+#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
+#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=node_exporter
+VERSION=${VERSION:-1.8.2}
+GITHASH=${GITHASH:-f1e0e8360aa60b6cb5e5cc1560bed348fc2c1895}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+SRCNAM=node_exporter
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $SRCNAM-$VERSION
+tar xvf $CWD/$SRCNAM-$VERSION.tar.gz
+cd $SRCNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \+ -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \+
+
+mkdir build
+
+GO111MODULE=auto GOPATH=$TMP/$SRCNAM-$VERSION/build go build
+
+install -D -m 0755 -s node_exporter $PKG/usr/bin/node_exporter
+install -D -m 0644 $CWD/config/node_exporter.default $PKG/etc/default/node_exporter.new
+install -D -m 0644 $CWD/config/rc.node_exporter $PKG/etc/rc.d/rc.node_exporter.new
+
+mkdir -p $PKG/var/run/node_exporter
+chown nobody $PKG/var/run/node_exporter
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a LICENSE NOTICE README.md $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+cat $CWD/README > $PKG/usr/doc/$PRGNAM-$VERSION/README.Slackware
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+cat $CWD/doinst.sh > $PKG/install/doinst.sh
+
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
+

network/node_exporter/node_exporter.info

@@ -0,0 +1,10 @@
+PRGNAM="node_exporter"
+VERSION="1.8.2"
+HOMEPAGE="https://github.com/prometheus/node_exporter"
+DOWNLOAD="https://github.com/prometheus/node_exporter/archive/v1.8.2/node_exporter-1.8.2.tar.gz"
+MD5SUM="096bfaf7a902b105288b616cc3215d63"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="google-go-lang"
+MAINTAINER="Petr Valenta"
+EMAIL="petr@jevklidu.cz"

network/node_exporter/slack-desc

@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+             |-----handy-ruler------------------------------------------------------|
+node_exporter: node_exporter (metrics for Prometheus)
+node_exporter:
+node_exporter: Prometheus exporter for hardware and OS metrics exposed by
+node_exporter: *NIX kernels, written in Go with pluggable metric collectors.
+node_exporter:
+node_exporter: Homepage: https://github.com/prometheus/node_exporter
+node_exporter: Guide: https://prometheus.io/docs/guides/node-exporter/
+node_exporter:
+node_exporter:
+node_exporter:
+node_exporter: