diff options
Diffstat (limited to 'netdata-installer.sh')
| -rwxr-xr-x | netdata-installer.sh | 446 |
1 files changed, 446 insertions, 0 deletions
diff --git a/netdata-installer.sh b/netdata-installer.sh new file mode 100755 index 00000000..7f21a137 --- /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 |