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netdata-installer.sh
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#!/usr/bin/env bash
# reload the user profile
[ -f /etc/profile ] && . /etc/profile
export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
# fix PKG_CHECK_MODULES error
if [ -d /usr/share/aclocal ]
then
ACLOCAL_PATH=${ACLOCAL_PATH-/usr/share/aclocal}
export ACLOCAL_PATH
fi
LC_ALL=C
umask 022
# Be nice on production environments
renice 19 $$ >/dev/null 2>/dev/null
processors=$(cat /proc/cpuinfo | grep ^processor | wc -l)
[ $(( processors )) -lt 1 ] && processors=1
# you can set CFLAGS before running installer
CFLAGS="${CFLAGS--O3}"
# 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")"
banner() {
local l1=" ^" \
l2=" |.-. .-. .-. .-. .-. .-. .-. .-. .-. .-. .-. .-. .-" \
l3=" | '-' '-' '-' '-' '-' '-' '-' '-' '-' '-' '-' '-' " \
l4=" +----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+--->" \
sp=" " \
netdata="netdata" start end msg="${*}"
[ ${#msg} -lt ${#netdata} ] && msg="${msg}${sp:0:$(( ${#netdata} - ${#msg}))}"
[ ${#msg} -gt $(( ${#l2} - 20 )) ] && msg="${msg:0:$(( ${#l2} - 23 ))}..."
start="$(( ${#l2} / 2 - 4 ))"
[ $(( start + ${#msg} + 4 )) -gt ${#l2} ] && start=$((${#l2} - ${#msg} - 4))
end=$(( ${start} + ${#msg} + 4 ))
echo >&2
echo >&2 "${l1}"
echo >&2 "${l2:0:start}${sp:0:2}${netdata}${sp:0:$((end - start - 2 - ${#netdata}))}${l2:end:$((${#l2} - end))}"
echo >&2 "${l3:0:start}${sp:0:2}${msg}${sp:0:2}${l3:end:$((${#l2} - end))}"
echo >&2 "${l4}"
echo >&2
}
service="$(which service 2>/dev/null || command -v service 2>/dev/null)"
systemctl="$(which systemctl 2>/dev/null || command -v systemctl 2>/dev/null)"
service() {
local cmd="${1}" action="${2}"
if [ ! -z "${service}" ]
then
run "${service}" "${cmd}" "${action}"
return $?
elif [ ! -z "${systemctl}" ]
then
run "${systemctl}" "${action}" "${cmd}"
return $?
fi
return 1
}
ME="$0"
DONOTSTART=0
DONOTWAIT=0
NETDATA_PREFIX=
LIBS_ARE_HERE=0
usage() {
banner "installer command line options"
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
--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 -O3
If you need to pass different CFLAGS, use something like this:
CFLAGS="<gcc options>" ${ME} <installer options>
For the installer to complete successfully, you will need
these packages installed:
gcc make autoconf automake pkg-config zlib1g-dev (or zlib-devel)
uuid-dev (or libuuid-devel)
For the plugins, you will at least need:
curl nodejs
USAGE
}
md5sum="$(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 $(find conf.d -name \*.conf | sort)
do
x="${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 "${x}:${s}"
echo " ${s}"
done
git checkout HEAD "conf.d/${x}" || break
done
cat configs.signatures.tmp |\
grep -v "^$" |\
sort -u |\
{
echo "declare -A configs_signatures=("
IFS=":"
while read file md5
do
echo " ['${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
banner "real-time performance monitoring, done right!"
cat <<BANNER
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/netdata
- plugins at ${NETDATA_PREFIX}/usr/libexec/netdata
- cache files at ${NETDATA_PREFIX}/var/cache/netdata
- db files at ${NETDATA_PREFIX}/var/lib/netdata
- log files at ${NETDATA_PREFIX}/var/log/netdata
- pid file at ${NETDATA_PREFIX}/var/run
This installer allows you to change the installation path.
Press Control-C and run the same command with --help for help.
BANNER
if [ "${UID}" -ne 0 ]
then
if [ -z "${NETDATA_PREFIX}" ]
then
banner "wrong command line options!"
cat <<NONROOTNOPREFIX
Sorry! This will fail!
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
IMPORTANT:
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 permanently on your system, run the
installer like this:
sudo $0 ${@}
NONROOT
fi
fi
have_autotools=
if [ "$(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
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
read -p "Press ENTER to build and install netdata to '${NETDATA_PREFIX}' > "
else
read -p "Press ENTER to build and install netdata to your system > "
fi
fi
build_error() {
banner "sorry, it failed to build..."
cat <<EOF
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sorry! netdata failed to build...
You many need to check these:
1. The package uuid-dev (or libuuid-devel) has to be installed.
If your system cannot find libuuid, although it is installed
run me with the option: --libs-are-really-here
2. The package zlib1g-dev (or zlib-devel) has to be installed.
If your system cannot find zlib, although it is installed
run me with the option: --libs-are-really-here
3. You need basic build tools installed, like:
gcc make autoconf automake pkg-config
Autoconf version 2.60 or higher is required.
If you still cannot get it to build, ask for help at github:
https://github.com/firehol/netdata/issues
EOF
trap - EXIT
exit 1
}
run() {
printf >>netdata-installer.log "# "
printf >>netdata-installer.log "%q " "${@}"
printf >>netdata-installer.log " ... "
printf >&2 "\n"
printf >&2 ":-----------------------------------------------------------------------------\n"
printf >&2 "Running command:\n"
printf >&2 "\n"
printf >&2 "%q " "${@}"
printf >&2 "\n"
"${@}"
local ret=$?
if [ ${ret} -ne 0 ]
then
printf >>netdata-installer.log "FAILED!\n"
else
printf >>netdata-installer.log "OK\n"
fi
return ${ret}
}
if [ ${LIBS_ARE_HERE} -eq 1 ]
then
shift
echo >&2 "ok, assuming libs are really installed."
export ZLIB_CFLAGS=" "
export ZLIB_LIBS="-lz"
export UUID_CFLAGS=" "
export UUID_LIBS="-luuid"
fi
trap build_error EXIT
if [ "$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
if [ -f src/netdata ]
then
echo >&2 "Cleaning a possibly old compilation ..."
run make clean
fi
echo >&2 "Compiling netdata ..."
run make -j${processors} || exit 1
if [ "${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
# 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${y}"
fi
done
done
fi
# backup user configurations
installer_backup_suffix="${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 "${md5sum}" ]
then
# we don't have md5sum - keep it
cp -p "${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 '${x}' is stock version."
else
# edited by user - keep it
echo >&2 "File '${x}' has been edited by user."
cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
fi
else
echo >&2 "File '${x}' cannot be check for custom edits."
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
echo >&2 "Installing netdata ..."
run make install || exit 1
# restore user configurations
for x in $(find "${NETDATA_PREFIX}/etc/netdata/" -name '*.conf' -type f)
do
if [ -f "${x}.installer_backup.${installer_backup_suffix}" ]
then
cp -p "${x}.installer_backup.${installer_backup_suffix}" "${x}"
rm -f "${x}.installer_backup.${installer_backup_suffix}"
fi
done
NETDATA_ADDED_TO_DOCKER=0
if [ ${UID} -eq 0 ]
then
getent group netdata > /dev/null
if [ $? -ne 0 ]
then
echo >&2 "Adding netdata user group ..."
run groupadd -r netdata
fi
getent passwd netdata > /dev/null
if [ $? -ne 0 ]
then
echo >&2 "Adding netdata user account ..."
run useradd -r -g netdata -c netdata -s $(which nologin 2>/dev/null || command -v nologin 2>/dev/null || echo '/bin/false') -d / netdata
fi
getent group docker > /dev/null
if [ $? -eq 0 ]
then
# find the users in the docker group
docker=$(getent group docker | cut -d ':' -f 4)
if [[ ",${docker}," =~ ,netdata, ]]
then
# netdata is already there
:
else
# netdata is not in docker group
echo >&2 "Adding netdata user to the docker group (needed to get container names) ..."
run usermod -a -G docker netdata
fi
# let the uninstall script know
NETDATA_ADDED_TO_DOCKER=1
fi
if [ -d /etc/logrotate.d -a ! -f /etc/logrotate.d/netdata ]
then
echo >&2 "Adding netdata logrotate configuration ..."
run cp system/netdata.logrotate /etc/logrotate.d/netdata
fi
fi
# -----------------------------------------------------------------------------
# load options from the configuration file
# create an empty config if it does not exist
[ ! -f "${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}" )"
NETDATA_WEB_USER="$( config_option "web files owner" "${defuser}" )"
NETDATA_WEB_GROUP="$( config_option "web files group" "${NETDATA_WEB_USER}" )"
# debug flags
defdebug=0
NETDATA_DEBUG="$( config_option "debug flags" ${defdebug} )"
# port
defport=19999
NETDATA_PORT="$( 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="${NETDATA_PREFIX}/var/run"
# -----------------------------------------------------------------------------
# prepare the directories
# this is needed if NETDATA_PREFIX is not empty
if [ ! -d "${NETDATA_RUN_DIR}" ]
then
mkdir -p "${NETDATA_RUN_DIR}" || exit 1
fi
echo >&2
echo >&2 "Fixing directories (user: ${NETDATA_USER})..."
for x in "${NETDATA_WEB_DIR}" "${NETDATA_CONF_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}" "${NETDATA_LIB_DIR}" "${NETDATA_CONF_DIR}/python.d" "${NETDATA_CONF_DIR}/charts.d" "${NETDATA_CONF_DIR}/node.d"
do
if [ ! -d "${x}" ]
then
echo >&2 "Creating directory '${x}'"
run mkdir -p "${x}" || exit 1
fi
if [ ${UID} -eq 0 ]
then
if [ "${x}" = "${NETDATA_WEB_DIR}" ]
then
run chown -R "${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}" "${x}" || echo >&2 "WARNING: Cannot change the ownership of the files in directory ${x} to ${NETDATA_WEB_USER}:${NETDATA_WEB_GROUP}..."
else
run chown -R "${NETDATA_USER}:${NETDATA_USER}" "${x}" || echo >&2 "WARNING: Cannot change the ownership of the files in directory ${x} to ${NETDATA_USER}..."
fi
fi
run chmod 0755 "${x}" || echo >&2 "WARNING: Cannot change the permissions of the directory ${x} to 0755..."
done
if [ ${UID} -eq 0 ]
then
run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
run chmod 0755 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
if [ $? -ne 0 ]
then
# fix apps.plugin to be setuid to root
run chown root "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
run chmod 4755 "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
fi
fi
# -----------------------------------------------------------------------------
# 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" >"${NETDATA_PREFIX}/etc/netdata/netdata.conf"
if [ "${UID}" -eq 0 ]
then
chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
chmod 0664 "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
banner "is installed now!"
echo >&2 " enjoy real-time performance and health monitoring..."
exit 0
fi
# -----------------------------------------------------------------------------
# stop a running netdata
isnetdata() {
[ -z "$1" -o ! -f "/proc/$1/stat" ] && return 1
[ "$(cat "/proc/$1/stat" | cut -d '(' -f 2 | cut -d ')' -f 1)" = "netdata" ] && return 0
return 1
}
stop_netdata_on_pid() {
local pid="${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..."
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 ${p}
fi
done
}
# -----------------------------------------------------------------------------
# check for systemd
issystemd() {
local pids p myns ns systemctl
# if the directory /etc/systemd/system does not exit, it is not systemd
[ ! -d /etc/systemd/system ] && return 1
# if there is no systemctl command, it is not systemd
systemctl=$(which systemctl 2>/dev/null || command -v systemctl 2>/dev/null)
[ -z "${systemctl}" -o ! -x "${systemctl}" ] && return 1
# if pid 1 is systemd, it is systemd
[ "$(basename $(readlink /proc/1/exe) 2>/dev/null)" = "systemd" ] && return 0
# if systemd is not running, it is not systemd
pids=$(pidof systemd 2>/dev/null)
[ -z "${pids}" ] && return 1
# check if the running systemd processes are not in our namespace
myns="$(readlink /proc/self/ns/pid 2>/dev/null)"
for p in ${pids}
do
ns="$(readlink /proc/${p}/ns/pid 2>/dev/null)"
# if pid of systemd is in our namespace, it is systemd
[ ! -z "${myns}" && "${myns}" = "${ns}" ] && return 0
done
# else, it is not systemd
return 1
}
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 "${key}" = "ubuntu-14.04" ]
then
run cp system/netdata-lsb /etc/init.d/netdata && \
run chmod 755 /etc/init.d/netdata && \
run update-rc.d netdata enable && \
installed_init_d=1
elif [ "${key}" = "CentOS release 6.8 (Final)" ]
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
}
started=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
else
service netdata stop
fi
stop_all_netdata
service netdata restart && started=1
else
install_non_systemd_init
fi
if [ ${started} -eq 0 ]
then
# check if we can use the system service
service netdata stop
stop_all_netdata
service netdata restart && started=1
if [ ${started} -eq 0 ]
then
service netdata start && started=1
fi
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
# -----------------------------------------------------------------------------
# Check for KSM
ksm_is_available_but_disabled() {
cat <<KSM1
-------------------------------------------------------------------------------
Memory de-duplication instructions
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 40-60% of netdata memory.
KSM1
}
ksm_is_not_available() {
cat <<KSM2
-------------------------------------------------------------------------------
Memory de-duplication not present in your kernel
It seems 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 40-60% 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