Imported Upstream version 1.0.0upstream/1.0.0

1 files changed, 446 insertions, 0 deletions

diff --git a/netdata-installer.sh b/netdata-installer.sh
new file mode 100755
index 000000000..7f21a137a
--- /dev/null
+++ b/netdata-installer.sh
@@ -0,0 +1,446 @@
+#!/bin/bash
+
+LC_ALL=C
+
+# you can set CFLAGS before running installer
+CFLAGS="${CFLAGS--O3}"
+
+ME="$0"
+DONOTSTART=0
+DONOTWAIT=0
+NETDATA_PREFIX=
+ZLIB_IS_HERE=0
+
+usage() {
+	cat <<USAGE
+
+${ME} <installer options>
+
+Valid <installer options> are:
+
+   --install /PATH/TO/INSTALL
+
+        If your give: --install /opt
+        netdata will be installed in /opt/netdata
+
+   --dont-start-it
+
+        Do not (re)start netdata.
+        Just install it.
+
+   --dont-wait
+
+        Do not wait for the user to press ENTER.
+        Start immediately building it.
+
+   --zlib-is-really-here
+
+        If you get errors about missing zlib,
+        but you know it is available,
+        you have a broken pkg-config.
+        Use this option to allow it continue
+        without checking pkg-config.
+
+Netdata will by default be compiled with gcc optimization -O3
+If you need to pass different CFLAGS, use something like this:
+
+  CFLAGS="<gcc options>" $ME <installer options>
+
+For the installer to complete successfully, you will need
+these packages installed:
+
+   gcc make autoconf automake pkg-config zlib1g-dev
+
+For the plugins, you will at least need:
+
+   curl node
+
+USAGE
+}
+
+while [ ! -z "${1}" ]
+do
+	if [ "$1" = "--install" ]
+		then
+		NETDATA_PREFIX="${2}/netdata"
+		shift 2
+	elif [ "$1" = "--zlib-is-really-here" ]
+		then
+		ZLIB_IS_HERE=1
+		shift 1
+	elif [ "$1" = "--dont-start-it" ]
+		then
+		DONOTSTART=1
+		shift 1
+	elif [ "$1" = "--dont-wait" ]
+		then
+		DONOTWAIT=1
+		shift 1
+	elif [ "$1" = "--help" -o "$1" = "-h" ]
+		then
+		usage
+		exit 1
+	else
+		echo >&2
+		echo >&2 "ERROR:"
+		echo >&2 "I cannot understand option '$1'."
+		usage
+		exit 1
+	fi
+done
+
+cat <<BANNER
+
+Welcome to netdata!
+Nice to see you are giving it a try!
+
+You are about to build and install netdata to your system.
+
+It will be installed at these locations:
+
+  - the daemon    at ${NETDATA_PREFIX}/usr/sbin/netdata
+  - config files  at ${NETDATA_PREFIX}/etc/netdata
+  - web files     at ${NETDATA_PREFIX}/usr/share/web/netdata
+  - plugins       at ${NETDATA_PREFIX}/usr/libexec/netdata
+  - cache files   at ${NETDATA_PREFIX}/var/cache/netdata
+  - log files     at ${NETDATA_PREFIX}/var/log/netdata
+
+This installer allows you to change the installation path.
+Press Control-C and run the same command with --help for help.
+
+BANNER
+
+if [ ! "${UID}" = 0 -o "$1" = "-h" -o "$1" = "--help" ]
+	then
+	echo >&2
+	echo >&2 "You have to run netdata as root."
+	echo >&2 "The netdata daemon will drop priviliges"
+	echo >&2 "but you have to start it as root."
+	echo >&2
+	exit 1
+fi
+
+if [ ${DONOTWAIT} -eq 0 ]
+	then
+	if [ ! -z "${NETDATA_PREFIX}" ]
+		then
+		read -p "Press ENTER to build and install netdata to '${NETDATA_PREFIX}' > "
+	else
+		read -p "Press ENTER to build and install netdata to your system > "
+	fi
+fi
+
+# reload the profile
+[ -f /etc/profile ] && . /etc/profile
+
+build_error() {
+	cat <<EOF
+
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Sorry! NetData failed to build...
+
+You many need to check these:
+
+1. The package zlib1g-dev has to be installed.
+
+2. You need basic build tools installed, like:
+
+   gcc make autoconf automake pkg-config
+
+3. If your system cannot find ZLIB, although it is installed
+   run me with the option:  --zlib-is-really-here
+
+If you still cannot get it to build, ask for help at github:
+
+   https://github.com/firehol/netdata/issues
+
+
+EOF
+	trap - EXIT
+	exit 1
+}
+
+run() {
+	printf >&2 ":-----------------------------------------------------------------------------\n"
+	printf >&2 "Running command:\n"
+	printf >&2 "\n"
+	printf >&2 "%q " "${@}"
+	printf >&2 "\n"
+	printf >&2 "\n"
+
+	"${@}"
+}
+
+if [ ${ZLIB_IS_HERE} -eq 1 ]
+	then
+	shift
+	echo >&2 "ok, assuming zlib is really installed."
+	export ZLIB_CFLAGS=" "
+	export ZLIB_LIBS="-lz"
+fi
+
+trap build_error EXIT
+
+echo >&2 "Running ./autogen.sh ..."
+run ./autogen.sh || exit 1
+
+echo >&2 "Running ./configure ..."
+run ./configure \
+	--prefix="${NETDATA_PREFIX}/usr" \
+	--sysconfdir="${NETDATA_PREFIX}/etc" \
+	--localstatedir="${NETDATA_PREFIX}/var" \
+	--with-zlib --with-math --with-user=netdata \
+	CFLAGS="${CFLAGS}" || exit 1
+
+# remove the build_error hook
+trap - EXIT
+
+if [ -f src/netdata ]
+	then
+	echo >&2 "Cleaning a possibly old compilation ..."
+	run make clean
+fi
+
+echo >&2 "Compiling netdata ..."
+run make || exit 1
+
+echo >&2 "Installing netdata ..."
+run make install || exit 1
+
+echo >&2 "Adding netdata user group ..."
+getent group netdata > /dev/null || run groupadd -r netdata
+
+echo >&2 "Adding netdata user account ..."
+getent passwd netdata > /dev/null || run useradd -r -g netdata -c netdata -s /sbin/nologin -d / netdata
+
+
+
+# -----------------------------------------------------------------------------
+# load options from the configuration file
+
+# create an empty config if it does not exist
+[ ! -f "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ] && touch "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+
+# function to extract values from the config file
+config_option() {
+	local key="${1}" value="${2}" line=
+
+	if [ -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
+		then
+		line="$( grep "^[[:space:]]*${key}[[:space:]]*=[[:space:]]*" "${NETDATA_PREFIX}/etc/netdata/netdata.conf" | head -n 1 )"
+		[ ! -z "${line}" ] && value="$( echo "${line}" | cut -d '=' -f 2 | sed -e "s/^[[:space:]]\+//g" -e "s/[[:space:]]\+$//g" )"
+	fi
+
+	echo "${value}"
+}
+
+# user
+defuser="netdata"
+[ ! "${UID}" = "0" ] && defuser="${USER}"
+NETDATA_USER="$( config_option "run as user" "${defuser}" )"
+
+# debug flags
+defdebug=0
+NETDATA_DEBUG="$( config_option "debug flags" ${defdebug} )"
+
+# port
+defport=19999
+NETDATA_PORT="$( config_option "port" ${defport} )"
+
+# directories
+NETDATA_CACHE_DIR="$( config_option "cache directory" "${NETDATA_PREFIX}/var/cache/netdata" )"
+NETDATA_WEB_DIR="$( config_option "web files directory" "${NETDATA_PREFIX}/usr/share/netdata/web" )"
+NETDATA_LOG_DIR="$( config_option "log directory" "${NETDATA_PREFIX}/var/log/netdata" )"
+NETDATA_CONF_DIR="$( config_option "config directory" "${NETDATA_PREFIX}/etc/netdata" )"
+
+
+# -----------------------------------------------------------------------------
+# prepare the directories
+
+echo >&2 "Fixing directory permissions for user ${NETDATA_USER}..."
+for x in "${NETDATA_WEB_DIR}" "${NETDATA_CONF_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}"
+do
+	if [ ! -d "${x}" ]
+		then
+		echo >&2 "Creating directory '${x}'"
+		run mkdir -p "${x}" || exit 1
+	fi
+	run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${x}" || echo >&2 "WARNING: Cannot change the ownership of the files in directory ${x} to ${NETDATA_USER}..."
+	run chmod 0775 "${x}" || echo >&2 "WARNING: Cannot change the permissions of the directory ${x} to 0755..."
+done
+
+# fix apps.plugin to be setuid to root
+run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+run chmod 4755 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+
+
+# -----------------------------------------------------------------------------
+# check if we can re-start netdata
+
+if [ ${DONOTSTART} -eq 1 ]
+	then
+	if [ ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
+		then
+		echo >&2 "Generating empty config file in: ${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+		echo "# Get config from http://127.0.0.1:${NETDATA_PORT}/netdata.conf" >"${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+		chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+		chmod 0664 "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+	fi
+	echo >&2 "OK. It is now installed and ready."
+	exit 0
+fi
+
+# -----------------------------------------------------------------------------
+# stop a running netdata
+
+isnetdata() {
+	[ -z "$1" -o ! -f "/proc/$1/stat" ] && return 1
+	[ "$(cat "/proc/$1/stat" | cut -d '(' -f 2 | cut -d ')' -f 1)" = "netdata" ] && return 0
+	return 1
+}
+
+
+printf >&2 "Stopping a (possibly) running netdata..."
+ret=0
+count=0
+while [ $ret -eq 0 ]
+do
+	if [ $count -gt 15 ]
+		then
+		echo >&2 "Cannot stop the running netdata."
+		exit 1
+	fi
+
+	count=$((count + 1))
+
+	pid=$(cat /var/run/netdata/netdata.pid 2>/dev/null)
+	isnetdata $pid || pid=
+	if [ ! -z "${pid}" ]
+		then
+		run kill $pid 2>/dev/null
+		ret=$?
+	else
+		run killall netdata 2>/dev/null
+		ret=$?
+	fi
+
+	test $ret -eq 0 && printf >&2 "." && sleep 2
+done
+echo >&2
+
+
+# -----------------------------------------------------------------------------
+# run netdata
+
+echo >&2 "Starting netdata..."
+run ${NETDATA_PREFIX}/usr/sbin/netdata "${@}"
+
+if [ $? -ne 0 ]
+	then
+	echo >&2
+	echo >&2 "SORRY! FAILED TO START NETDATA!"
+	exit 1
+else
+	echo >&2 "OK. NetData Started!"
+fi
+
+
+# -----------------------------------------------------------------------------
+# save a config file, if it is not already there
+
+if [ ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
+	then
+	echo >&2 "Downloading default configuration from netdata..."
+	sleep 5
+
+	# remove a possibly obsolete download
+	[ -f "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" ] && rm "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new"
+
+	# try wget
+	wget 2>/dev/null -O "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" "http://localhost:${NETDATA_PORT}/netdata.conf"
+	ret=$?
+
+	# try curl
+	if [ $ret -ne 0 -o ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" ]
+		then
+		curl -s -o "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" "http://localhost:${NETDATA_PORT}/netdata.conf"
+		ret=$?
+	fi
+
+	if [ $ret -eq 0 -a -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" ]
+		then
+		mv "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+		echo >&2 "New configuration saved for you to edit at ${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+
+		chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+		chmod 0664 "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+	else
+		echo >&2 "Cannnot download configuration from netdata daemon using url 'http://localhost:${NETDATA_PORT}/netdata.conf'"
+		[ -f "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" ] && rm "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new"
+	fi
+fi
+
+cat <<END
+
+
+-------------------------------------------------------------------------------
+
+ok. NetData is installed and is running.
+
+Hit http://localhost:${NETDATA_PORT}/ from your browser.
+
+To stop netdata, just kill it, with:
+
+  killall netdata
+
+To start it, just run it:
+
+  ${NETDATA_PREFIX}/usr/sbin/netdata
+
+Enjoy!
+
+END
+
+ksm_is_available_but_disabled() {
+	cat <<KSM1
+
+INFORMATION:
+
+I see you have kernel memory de-duper (called Kernel Same-page Merging,
+or KSM) available, but it is not currently enabled.
+
+To enable it run:
+
+echo 1 >/sys/kernel/mm/ksm/run
+echo 1000 >/sys/kernel/mm/ksm/sleep_millisecs
+
+If you enable it, you will save 20-60% of netdata memory.
+
+KSM1
+}
+
+ksm_is_not_available() {
+	cat <<KSM2
+
+INFORMATION:
+
+I see you do not have kernel memory de-duper (called Kernel Same-page
+Merging, or KSM) available.
+
+To enable it, you need a kernel built with CONFIG_KSM=y
+
+If you can have it, you will save 20-60% of netdata memory.
+
+KSM2
+}
+
+if [ -f "/sys/kernel/mm/ksm/run" ]
+	then
+	if [ $(cat "/sys/kernel/mm/ksm/run") != "1" ]
+		then
+		ksm_is_available_but_disabled
+	fi
+else
+	ksm_is_not_available
+fi