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netdata-installer.sh
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netdata-installer.sh
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#!/usr/bin/env bash
export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
netdata_source_dir="$(pwd)"
installer_dir="$(dirname "${0}")"
if [ "${netdata_source_dir}" != "${installer_dir}" -a "${installer_dir}" != "." ]
then
echo >&2 "Warninng: you are currently in '${netdata_source_dir}' but the installer is in '${installer_dir}'."
fi
# -----------------------------------------------------------------------------
# reload the user profile
[ -f /etc/profile ] && . /etc/profile
# make sure /etc/profile does not change our current directory
cd "${netdata_source_dir}" || exit 1
# -----------------------------------------------------------------------------
# load the required functions
if [ -f "${installer_dir}/installer/functions.sh" ]
then
source "${installer_dir}/installer/functions.sh" || exit 1
else
source "${netdata_source_dir}/installer/functions.sh" || exit 1
fi
# make sure we save all commands we run
run_logfile="netdata-installer.log"
# -----------------------------------------------------------------------------
# fix PKG_CHECK_MODULES error
if [ -d /usr/share/aclocal ]
then
ACLOCAL_PATH=${ACLOCAL_PATH-/usr/share/aclocal}
export ACLOCAL_PATH
fi
LC_ALL=C
umask 002
# Be nice on production environments
renice 19 $$ >/dev/null 2>/dev/null
processors=$(grep ^processor </proc/cpuinfo 2>/dev/null | wc -l)
[ $(( processors )) -lt 1 ] && processors=1
# you can set CFLAGS before running installer
CFLAGS="${CFLAGS--O2}"
[ "z${CFLAGS}" = "z-O3" ] && CFLAGS="-O2"
# keep a log of this command
printf "\n# " >>netdata-installer.log
date >>netdata-installer.log
printf "CFLAGS=\"%s\" " "${CFLAGS}" >>netdata-installer.log
printf "%q " "$0" "${@}" >>netdata-installer.log
printf "\n" >>netdata-installer.log
REINSTALL_PWD="${PWD}"
REINSTALL_COMMAND="$(printf "%q " "$0" "${@}"; printf "\n")"
setcap="$(which setcap 2>/dev/null || command -v setcap 2>/dev/null)"
ME="$0"
DONOTSTART=0
DONOTWAIT=0
NETDATA_PREFIX=
LIBS_ARE_HERE=0
usage() {
netdata_banner "installer command line options"
cat <<USAGE
${ME} <installer options>
Valid <installer options> are:
--install /PATH/TO/INSTALL
If you 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
--libs-are-really-here
If you get errors about missing zlib,
or libuuid 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 -O2
If you need to pass different CFLAGS, use something like this:
CFLAGS="<gcc options>" ${ME} <installer options>
For the installer to complete successfully, you will need
these packages installed:
gcc make autoconf automake pkg-config zlib1g-dev (or zlib-devel)
uuid-dev (or libuuid-devel)
For the plugins, you will at least need:
curl nodejs
USAGE
}
md5sum="$(which md5sum 2>/dev/null || command -v md5sum 2>/dev/null)"
get_git_config_signatures() {
local x s file md5
[ ! -d "conf.d" ] && echo >&2 "Wrong directory." && return 1
[ -z "${md5sum}" -o ! -x "${md5sum}" ] && echo >&2 "No md5sum command." && return 1
echo >configs.signatures.tmp
for x in $(find conf.d -name \*.conf)
do
x="${x/conf.d\//}"
echo "${x}"
for c in $(git log --follow "conf.d/${x}" | grep ^commit | cut -d ' ' -f 2)
do
git checkout ${c} "conf.d/${x}" || continue
s="$(cat "conf.d/${x}" | md5sum | cut -d ' ' -f 1)"
echo >>configs.signatures.tmp "${s}:${x}"
echo " ${s}"
done
git checkout HEAD "conf.d/${x}" || break
done
cat configs.signatures.tmp |\
grep -v "^$" |\
sort -u |\
{
echo "declare -A configs_signatures=("
IFS=":"
while read md5 file
do
echo " ['${md5}']='${file}'"
done
echo ")"
} >configs.signatures
rm configs.signatures.tmp
return 0
}
while [ ! -z "${1}" ]
do
if [ "$1" = "--install" ]
then
NETDATA_PREFIX="${2}/netdata"
shift 2
elif [ "$1" = "--zlib-is-really-here" -o "$1" = "--libs-are-really-here" ]
then
LIBS_ARE_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
elif [ "$1" = "get_git_config_signatures" ]
then
get_git_config_signatures && exit 0
exit 1
else
echo >&2
echo >&2 "ERROR:"
echo >&2 "I cannot understand option '$1'."
usage
exit 1
fi
done
netdata_banner "real-time performance monitoring, done right!"
cat <<BANNER1
You are about to build and install netdata to your system.
It will be installed at these locations:
- the daemon at ${TPUT_CYAN}${NETDATA_PREFIX}/usr/sbin/netdata${TPUT_RESET}
- config files in ${TPUT_CYAN}${NETDATA_PREFIX}/etc/netdata${TPUT_RESET}
- web files in ${TPUT_CYAN}${NETDATA_PREFIX}/usr/share/netdata${TPUT_RESET}
- plugins in ${TPUT_CYAN}${NETDATA_PREFIX}/usr/libexec/netdata${TPUT_RESET}
- cache files in ${TPUT_CYAN}${NETDATA_PREFIX}/var/cache/netdata${TPUT_RESET}
- db files in ${TPUT_CYAN}${NETDATA_PREFIX}/var/lib/netdata${TPUT_RESET}
- log files in ${TPUT_CYAN}${NETDATA_PREFIX}/var/log/netdata${TPUT_RESET}
BANNER1
[ "${UID}" -eq 0 ] && cat <<BANNER2
- pid file at ${TPUT_CYAN}${NETDATA_PREFIX}/var/run/netdata.pid${TPUT_RESET}
- logrotate file at ${TPUT_CYAN}/etc/logrotate.d/netdata${TPUT_RESET}
BANNER2
cat <<BANNER3
This installer allows you to change the installation path.
Press Control-C and run the same command with --help for help.
BANNER3
if [ "${UID}" -ne 0 ]
then
if [ -z "${NETDATA_PREFIX}" ]
then
netdata_banner "wrong command line options!"
cat <<NONROOTNOPREFIX
${TPUT_RED}${TPUT_BOLD}Sorry! This will fail!${TPUT_RESET}
You are attempting to install netdata as non-root, but you plan
to install it in system paths.
Please set an installation prefix, like this:
$0 ${@} --install /tmp
or, run the installer as root:
sudo $0 ${@}
We suggest to install it as root, or certain data collectors will
not be able to work. Netdata drops root privileges when running.
So, if you plan to keep it, install it as root to get the full
functionality.
NONROOTNOPREFIX
exit 1
else
cat <<NONROOT
${TPUT_RED}${TPUT_BOLD}IMPORTANT${TPUT_RESET}:
You are about to install netdata as a non-root user.
Netdata will work, but a few data collection modules that
require root access will fail.
If you installing netdata permanently on your system, run
the installer like this:
${TPUT_YELLOW}${TPUT_BOLD}sudo $0 ${@}${TPUT_RESET}
NONROOT
fi
fi
have_autotools=
if [ "$(type autoreconf 2> /dev/null)" ]
then
autoconf_maj_min() {
local maj min IFS=.-
maj=$1
min=$2
set -- $(autoreconf -V | sed -ne '1s/.* \([^ ]*\)$/\1/p')
eval $maj=\$1 $min=\$2
}
autoconf_maj_min AMAJ AMIN
if [ "$AMAJ" -gt 2 ]
then
have_autotools=Y
elif [ "$AMAJ" -eq 2 -a "$AMIN" -ge 60 ]
then
have_autotools=Y
else
echo "Found autotools $AMAJ.$AMIN"
fi
else
echo "No autotools found"
fi
if [ ! "$have_autotools" ]
then
if [ -f configure ]
then
echo "Will skip autoreconf step"
else
netdata_banner "autotools v2.60 required"
cat <<"EOF"
-------------------------------------------------------------------------------
autotools 2.60 or later is required
Sorry, you do not seem to have autotools 2.60 or later, which is
required to build from the git sources of netdata.
You can either install a suitable version of autotools and automake
or download a netdata package which does not have these dependencies.
Source packages where autotools have already been run are available
here:
https://firehol.org/download/netdata/
The unsigned/master folder tracks the head of the git tree and released
packages are also available.
EOF
exit 1
fi
fi
if [ ${DONOTWAIT} -eq 0 ]
then
if [ ! -z "${NETDATA_PREFIX}" ]
then
eval "read >&2 -ep \$'\001${TPUT_BOLD}${TPUT_GREEN}\002Press ENTER to build and install netdata to \'\001${TPUT_CYAN}\002${NETDATA_PREFIX}\001${TPUT_YELLOW}\002\'\001${TPUT_RESET}\002 > ' -e -r REPLY"
else
eval "read >&2 -ep \$'\001${TPUT_BOLD}${TPUT_GREEN}\002Press ENTER to build and install netdata to your system\001${TPUT_RESET}\002 > ' -e -r REPLY"
fi
fi
build_error() {
netdata_banner "sorry, it failed to build..."
cat <<EOF
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sorry! netdata failed to build...
You many need to check these:
1. The package uuid-dev (or libuuid-devel) has to be installed.
If your system cannot find libuuid, although it is installed
run me with the option: --libs-are-really-here
2. The package zlib1g-dev (or zlib-devel) has to be installed.
If your system cannot find zlib, although it is installed
run me with the option: --libs-are-really-here
3. You need basic build tools installed, like:
gcc make autoconf automake pkg-config
Autoconf version 2.60 or higher is required.
If you still cannot get it to build, ask for help at github:
https://github.com/firehol/netdata/issues
EOF
trap - EXIT
exit 1
}
if [ ${LIBS_ARE_HERE} -eq 1 ]
then
shift
echo >&2 "ok, assuming libs are really installed."
export ZLIB_CFLAGS=" "
export ZLIB_LIBS="-lz"
export UUID_CFLAGS=" "
export UUID_LIBS="-luuid"
fi
trap build_error EXIT
# -----------------------------------------------------------------------------
echo >&2
progress "Run autotools to configure the build environment"
if [ "$have_autotools" ]
then
run ./autogen.sh || exit 1
fi
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
# -----------------------------------------------------------------------------
progress "Cleanup compilation directory"
[ -f src/netdata ] && run make clean
# -----------------------------------------------------------------------------
progress "Compile netdata"
run make -j${processors} || exit 1
# -----------------------------------------------------------------------------
progress "Migrate configuration files for node.d.plugin and charts.d.plugin"
# migrate existing configuration files
# for node.d and charts.d
if [ -d "${NETDATA_PREFIX}/etc/netdata" ]
then
# the configuration directory exists
if [ ! -d "${NETDATA_PREFIX}/etc/netdata/charts.d" ]
then
run mkdir "${NETDATA_PREFIX}/etc/netdata/charts.d"
fi
# move the charts.d config files
for x in apache ap cpu_apps cpufreq example exim hddtemp load_average mem_apps mysql nginx nut opensips phpfpm postfix sensors squid tomcat
do
for y in "" ".old" ".orig"
do
if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" -a ! -f "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}" ]
then
run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}"
fi
done
done
if [ ! -d "${NETDATA_PREFIX}/etc/netdata/node.d" ]
then
run mkdir "${NETDATA_PREFIX}/etc/netdata/node.d"
fi
# move the node.d config files
for x in named sma_webbox snmp
do
for y in "" ".old" ".orig"
do
if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" -a ! -f "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}" ]
then
run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}"
fi
done
done
fi
# -----------------------------------------------------------------------------
progress "Backup existing netdata configuration before installing it"
if [ "${BASH_VERSINFO[0]}" -ge "4" ]
then
declare -A configs_signatures=()
if [ -f "configs.signatures" ]
then
source "configs.signatures" || echo >&2 "ERROR: Failed to load configs.signatures !"
fi
fi
# backup user configurations
installer_backup_suffix="${PID}.${RANDOM}"
for x in $(find "${NETDATA_PREFIX}/etc/netdata/" -name '*.conf' -type f)
do
if [ -f "${x}" ]
then
# make a backup of the configuration file
cp -p "${x}" "${x}.old"
if [ -z "${md5sum}" -o ! -x "${md5sum}" ]
then
# we don't have md5sum - keep it
echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RET}is not known to distribution${TPUT_RESET}. Keeping it."
run cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
else
# find it relative filename
f="${x/*\/etc\/netdata\//}"
# find its checksum
md5="$(cat "${x}" | ${md5sum} | cut -d ' ' -f 1)"
# copy the original
if [ -f "conf.d/${f}" ]
then
cp "conf.d/${f}" "${x}.orig"
fi
if [ "${BASH_VERSINFO[0]}" -ge "4" ]
then
if [ "${configs_signatures[${md5}]}" = "${f}" ]
then
# it is a stock version - don't keep it
echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' is stock version."
else
# edited by user - keep it
echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RED} has been edited by user${TPUT_RESET}. Keeping it."
run cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
fi
else
echo >&2 "File '${TPUT_CYAN}${x}${TPUT_RESET}' ${TPUT_RET}cannot be checked for custom edits${TPUT_RESET}. Keeping it."
run cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
fi
fi
elif [ -f "${x}.installer_backup.${installer_backup_suffix}" ]
then
rm -f "${x}.installer_backup.${installer_backup_suffix}"
fi
done
# -----------------------------------------------------------------------------
progress "Install netdata"
run make install || exit 1
# -----------------------------------------------------------------------------
progress "Restore user edited netdata configuration files"
for x in $(find "${NETDATA_PREFIX}/etc/netdata/" -name '*.conf' -type f)
do
if [ -f "${x}.installer_backup.${installer_backup_suffix}" ]
then
run cp -p "${x}.installer_backup.${installer_backup_suffix}" "${x}" && \
run rm -f "${x}.installer_backup.${installer_backup_suffix}"
fi
done
# -----------------------------------------------------------------------------
progress "Fix generated files permissions"
run find ./system/ -type f -a \! -name \*.in -a \! -name Makefile\* -a \! -name \*.conf -a \! -name \*.service -a \! -name \*.logrotate -exec chmod 755 {} \;
# -----------------------------------------------------------------------------
progress "Add user netdata to required user groups"
NETDATA_ADDED_TO_DOCKER=0
NETDATA_ADDED_TO_NGINX=0
NETDATA_ADDED_TO_VARNISH=0
NETDATA_ADDED_TO_HAPROXY=0
NETDATA_ADDED_TO_ADM=0
if [ ${UID} -eq 0 ]
then
portable_add_group netdata
portable_add_user netdata
portable_add_user_to_group docker netdata && NETDATA_ADDED_TO_DOCKER=1
portable_add_user_to_group nginx netdata && NETDATA_ADDED_TO_NGINX=1
portable_add_user_to_group varnish netdata && NETDATA_ADDED_TO_VARNISH=1
portable_add_user_to_group haproxy netdata && NETDATA_ADDED_TO_HAPROXY=1
portable_add_user_to_group adm netdata && NETDATA_ADDED_TO_ADM=1
run_ok
else
run_failed "The installer does not run as root."
fi
# -----------------------------------------------------------------------------
progress "Install logrotate configuration for netdata"
if [ ${UID} -eq 0 ]
then
if [ -d /etc/logrotate.d -a ! -f /etc/logrotate.d/netdata ]
then
run cp system/netdata.logrotate /etc/logrotate.d/netdata
fi
if [ -f /etc/logrotate.d/netdata ]
then
run chmod 644 /etc/logrotate.d/netdata
fi
fi
# -----------------------------------------------------------------------------
progress "Read installation options from netdata.conf"
# create an empty config if it does not exist
[ ! -f "${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}"
}
# the user netdata will run as
if [ "${UID}" = "0" ]
then
NETDATA_USER="$( config_option "run as user" "netdata" )"
else
NETDATA_USER="${USER}"
fi
# the owners of the web files
NETDATA_WEB_USER="$( config_option "web files owner" "${NETDATA_USER}" )"
NETDATA_WEB_GROUP="$( config_option "web files group" "${NETDATA_WEB_USER}" )"
# debug flags
NETDATA_DEBUG="$( config_option "debug flags" 0 )"
# port
defport=19999
NETDATA_PORT="$( config_option "default port" ${defport} )"
NETDATA_PORT2="$( config_option "port" ${defport} )"
if [ "${NETDATA_PORT}" != "${NETDATA_PORT2}" ]
then
if [ "${NETDATA_PORT2}" != "${defport}" ]
then
NETDATA_PORT="${NETDATA_PORT2}"
fi
fi
# directories
NETDATA_LIB_DIR="$( config_option "lib directory" "${NETDATA_PREFIX}/var/lib/netdata" )"
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" )"
NETDATA_RUN_DIR="${NETDATA_PREFIX}/var/run"
# -----------------------------------------------------------------------------
progress "Fix permissions of netdata directories (using user '${NETDATA_USER}')"
if [ ! -d "${NETDATA_RUN_DIR}" ]
then
# this is needed if NETDATA_PREFIX is not empty
run mkdir -p "${NETDATA_RUN_DIR}" || exit 1
fi
# --- conf dir ----
for x in "python.d" "charts.d" "node.d"
do
if [ ! -d "${NETDATA_CONF_DIR}/${x}" ]
then
echo >&2 "Creating directory '${NETDATA_CONF_DIR}/${x}'"
run mkdir -p "${NETDATA_CONF_DIR}/${x}" || exit 1
fi
done
run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${NETDATA_CONF_DIR}"
run find "${NETDATA_CONF_DIR}" -type f -exec chmod 0660 {} \;
run find "${NETDATA_CONF_DIR}" -type d -exec chmod 0775 {} \;
# --- web dir ----
if [ ! -d "${NETDATA_WEB_DIR}" ]
then
echo >&2 "Creating directory '${NETDATA_WEB_DIR}'"
run mkdir -p "${NETDATA_WEB_DIR}" || exit 1
fi
run chown -R "${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}" "${NETDATA_WEB_DIR}"
run find "${NETDATA_WEB_DIR}" -type f -exec chmod 0664 {} \;
run find "${NETDATA_WEB_DIR}" -type d -exec chmod 0775 {} \;
# --- data dirs ----
for x in "${NETDATA_LIB_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}"
#run find "${x}" -type f -exec chmod 0660 {} \;
#run find "${x}" -type d -exec chmod 0770 {} \;
done
run chmod 755 "${NETDATA_LOG_DIR}"
# --- plugins ----
if [ ${UID} -eq 0 ]
then
run chown "${NETDATA_USER}:root" "${NETDATA_LOG_DIR}"
run chown -R root "${NETDATA_PREFIX}/usr/libexec/netdata"
run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \;
run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0644 {} \;
run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.plugin -exec chmod 0755 {} \;
run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -a -name \*.sh -exec chmod 0755 {} \;
setcap_ret=1
if ! iscontainer
then
if [ ! -z "${setcap}" ]
then
run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
setcap_ret=$?
fi
if [ ${setcap_ret} -eq 0 ]
then
# if we managed to setcap
# but we fail to execute apps.plugin
# trigger setuid to root
"${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" -v >/dev/null 2>&1
setcap_ret=$?
fi
fi
if [ ${setcap_ret} -ne 0 ]
then
# fix apps.plugin to be setuid to root
run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
run chmod 4755 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
fi
else
run chown "${NETDATA_USER}:${NETDATA_USER}" "${NETDATA_LOG_DIR}"
run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${NETDATA_PREFIX}/usr/libexec/netdata"
run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type f -exec chmod 0755 {} \;
run find "${NETDATA_PREFIX}/usr/libexec/netdata" -type d -exec chmod 0755 {} \;
fi
# --- fix #1292 bug ---
[ -d "${NETDATA_PREFIX}/usr/libexec" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/libexec"
[ -d "${NETDATA_PREFIX}/usr/share/netdata" ] && run chmod a+rX "${NETDATA_PREFIX}/usr/share/netdata"
# -----------------------------------------------------------------------------
progress "Install netdata at system init"
installed_init_d=0
install_non_systemd_init() {
[ "${UID}" != 0 ] && return 1
local key="unknown"
if [ -f /etc/os-release ]
then
source /etc/os-release || return 1
key="${ID}-${VERSION_ID}"
elif [ -f /etc/centos-release ]
then
key=$(</etc/centos-release)
fi
if [ -d /etc/init.d -a ! -f /etc/init.d/netdata ]
then
if [ "${key}" = "gentoo" ]
then
run cp system/netdata-openrc /etc/init.d/netdata && \
run chmod 755 /etc/init.d/netdata && \
run rc-update add netdata default && \
installed_init_d=1
elif [ "${key}" = "ubuntu-12.04" -o "${key}" = "ubuntu-14.04" -o "${key}" = "debian-7" ]
then
run cp system/netdata-lsb /etc/init.d/netdata && \
run chmod 755 /etc/init.d/netdata && \
run update-rc.d netdata defaults && \
run update-rc.d netdata enable && \
installed_init_d=1
elif [ "${key}" = "CentOS release 6.8 (Final)" -o "${key}" = "amzn-2016.09" ]
then
run cp system/netdata-init-d /etc/init.d/netdata && \
run chmod 755 /etc/init.d/netdata && \
run chkconfig netdata on && \
installed_init_d=1
fi
fi
return 0
}
if [ "${UID}" -eq 0 ]
then
if issystemd
then
# systemd is running on this system
if [ ! -f /etc/systemd/system/netdata.service ]
then
echo >&2 "Installing systemd service..."
run cp system/netdata.service /etc/systemd/system/netdata.service && \
run systemctl daemon-reload && \
run systemctl enable netdata
fi
else
install_non_systemd_init
fi
fi
# -----------------------------------------------------------------------------
# check if we can re-start netdata
started=0
isnetdata() {
if [ -d /proc/self ]
then
[ -z "$1" -o ! -f "/proc/$1/stat" ] && return 1
[ "$(cat "/proc/$1/stat" | cut -d '(' -f 2 | cut -d ')' -f 1)" = "netdata" ] && return 0
return 1
fi
return 0
}
stop_netdata_on_pid() {
local pid="${1}" ret=0 count=0
isnetdata ${pid} || return 0
printf >&2 "Stopping netdata on pid ${pid} ..."
while [ ! -z "$pid" -a ${ret} -eq 0 ]
do
if [ ${count} -gt 45 ]
then
echo >&2 "Cannot stop the running netdata on pid ${pid}."
return 1
fi
count=$(( count + 1 ))
run kill ${pid} 2>/dev/null
ret=$?
test ${ret} -eq 0 && printf >&2 "." && sleep 2
done
echo >&2
if [ ${ret} -eq 0 ]
then
echo >&2 "SORRY! CANNOT STOP netdata ON PID ${pid} !"
return 1
fi
echo >&2 "netdata on pid ${pid} stopped."
return 0
}
stop_all_netdata() {
local p myns ns
myns="$(readlink /proc/self/ns/pid 2>/dev/null)"
# echo >&2 "Stopping a (possibly) running netdata (namespace '${myns}')..."
for p in $(cat "${NETDATA_RUN_DIR}/netdata.pid" 2>/dev/null) \
$(cat /var/run/netdata.pid 2>/dev/null) \
$(cat /var/run/netdata/netdata.pid 2>/dev/null) \
$(pidof netdata 2>/dev/null)
do
ns="$(readlink /proc/${p}/ns/pid 2>/dev/null)"
if [ -z "${myns}" -o -z "${ns}" -o "${myns}" = "${ns}" ]
then
stop_netdata_on_pid ${p}
fi
done
}
if [ ${DONOTSTART} -eq 1 ]
then
if [ ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
then
echo "# Get config from http://127.0.0.1:${NETDATA_PORT}/netdata.conf" >"${NETDATA_PREFIX}/etc/netdata/netdata.conf"
if [ "${UID}" -eq 0 ]
then
chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
chmod 0644 "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
else
progress "Start netdata"
if [ "${UID}" -eq 0 ]
then
service netdata stop
stop_all_netdata
service netdata restart && started=1
if [ ${started} -eq 0 ]
then
service netdata start && started=1
fi
fi
if [ ${started} -eq 0 ]
then
# still not started...
stop_all_netdata
echo >&2 "Starting netdata..."
run ${NETDATA_PREFIX}/usr/sbin/netdata -P ${NETDATA_RUN_DIR}/netdata.pid "${@}"
if [ $? -ne 0 ]
then
echo >&2
echo >&2 "SORRY! FAILED TO START NETDATA!"
exit 1
else
echo >&2 "OK. NetData Started!"
fi
echo >&2
fi
# -----------------------------------------------------------------------------
# save a config file, if it is not already there
if [ ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
then
echo >&2
echo >&2 "-------------------------------------------------------------------------------"
echo >&2
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"
# disable a proxy to get data from the local netdata
export http_proxy=
export https_proxy=
# 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 ${NETDATA_PREFIX}/etc/netdata/netdata.conf"
if [ "${UID}" -eq 0 ]
then
chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
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
fi
# -----------------------------------------------------------------------------
progress "Check KSM (kernel memory deduper)"
ksm_is_available_but_disabled() {
cat <<KSM1
${TPUT_BOLD}Memory de-duplication instructions${TPUT_RESET}
You have kernel memory de-duper (called Kernel Same-page Merging,
or KSM) available, but it is not currently enabled.
To enable it run:
${TPUT_YELLOW}${TPUT_BOLD}echo 1 >/sys/kernel/mm/ksm/run${TPUT_RESET}
${TPUT_YELLOW}${TPUT_BOLD}echo 1000 >/sys/kernel/mm/ksm/sleep_millisecs${TPUT_RESET}
If you enable it, you will save 40-60% of netdata memory.
KSM1
}