summaryrefslogtreecommitdiffstats
path: root/netdata-installer.sh
diff options
context:
space:
mode:
authorLennart Weller <lhw@ring0.de>2017-01-24 15:21:09 +0000
committerLennart Weller <lhw@ring0.de>2017-01-24 15:21:09 +0000
commit3ed3b02ed96ddab1c084811f3579b3a2aec83e04 (patch)
tree7a61ab288ae47800c4f11be5677d6ad8288dcd98 /netdata-installer.sh
parentNew upstream version 1.4.0+dfsg (diff)
downloadnetdata-3ed3b02ed96ddab1c084811f3579b3a2aec83e04.tar.xz
netdata-3ed3b02ed96ddab1c084811f3579b3a2aec83e04.zip
New upstream version 1.5.0+dfsgupstream/1.5.0+dfsg
Diffstat (limited to 'netdata-installer.sh')
-rwxr-xr-xnetdata-installer.sh450
1 files changed, 375 insertions, 75 deletions
diff --git a/netdata-installer.sh b/netdata-installer.sh
index c3b97243b..fa69de196 100755
--- a/netdata-installer.sh
+++ b/netdata-installer.sh
@@ -13,10 +13,17 @@ then
fi
LC_ALL=C
-umask 022
+umask 002
+
+# 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}"
+CFLAGS="${CFLAGS--O2}"
+[ "z${CFLAGS}" = "z-O3" ] && CFLAGS="-O2"
# keep a log of this command
printf "\n# " >>netdata-installer.log
@@ -106,7 +113,7 @@ Valid <installer options> are:
Use this option to allow it continue
without checking pkg-config.
-Netdata will by default be compiled with gcc optimization -O3
+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>
@@ -141,7 +148,7 @@ get_git_config_signatures() {
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 >>configs.signatures.tmp "${s}:${x}"
echo " ${s}"
done
git checkout HEAD "conf.d/${x}" || break
@@ -153,7 +160,7 @@ get_git_config_signatures() {
{
echo "declare -A configs_signatures=("
IFS=":"
- while read file md5
+ while read md5 file
do
echo " ['${md5}']='${file}'"
done
@@ -427,7 +434,7 @@ if [ -f src/netdata ]
fi
echo >&2 "Compiling netdata ..."
-run make || exit 1
+run make -j${processors} || exit 1
if [ "${BASH_VERSINFO[0]}" -ge "4" ]
then
@@ -541,46 +548,173 @@ do
fi
done
-NETDATA_ADDED_TO_DOCKER=0
-if [ ${UID} -eq 0 ]
+echo >&2 "Fixing permissions ..."
+
+check_cmd() {
+ which "${1}" >/dev/null 2>&1 && return 0
+ command -v "${1}" >/dev/null 2>&1 && return 0
+ return 1
+}
+
+portable_add_user() {
+ local username="${1}"
+
+ getent passwd "${username}" > /dev/null 2>&1
+ [ $? -eq 0 ] && return 0
+
+ echo >&2 "Adding ${username} user account ..."
+
+ local nologin="$(which nologin 2>/dev/null || command -v nologin 2>/dev/null || echo '/bin/false')"
+
+ # Linux
+ if check_cmd useradd
then
- getent group netdata > /dev/null
- if [ $? -ne 0 ]
+ run useradd -r -g "${username}" -c "${username}" -s "${nologin}" -d / "${username}" && return 0
+ fi
+
+ # FreeBSD
+ if check_cmd pw
+ then
+ run pw useradd "${username}" -d / -g "${username}" -s "${nologin}" && return 0
+ fi
+
+ # BusyBox
+ if check_cmd adduser
+ then
+ run adduser -D -G "${username}" "${username}" && return 0
+ fi
+
+ echo >&2 "Failed to add ${username} user account !"
+
+ return 1
+}
+
+portable_add_group() {
+ local groupname="${1}"
+
+ getent group "${groupname}" > /dev/null 2>&1
+ [ $? -eq 0 ] && return 0
+
+ echo >&2 "Adding ${groupname} user group ..."
+
+ # Linux
+ if check_cmd groupadd
+ then
+ run groupadd -r "${groupname}" && return 0
+ fi
+
+ # FreeBSD
+ if check_cmd pw
+ then
+ run pw groupadd "${groupname}" && return 0
+ fi
+
+ # BusyBox
+ if check_cmd addgroup
+ then
+ run addgroup "${groupname}" && return 0
+ fi
+
+ echo >&2 "Failed to add ${groupname} user group !"
+ return 1
+}
+
+portable_add_user_to_group() {
+ local groupname="${1}" username="${2}"
+
+ getent group "${groupname}" > /dev/null 2>&1
+ [ $? -ne 0 ] && return 1
+
+ # find the user is already in the group
+ local users=$(getent group "${groupname}" | cut -d ':' -f 4)
+ if [[ ",${users}," =~ ,${username}, ]]
+ then
+ # username is already there
+ return 0
+ else
+ # username is not in group
+ echo >&2 "Adding ${username} user to the ${groupname} group ..."
+
+ # Linux
+ if check_cmd usermod
+ then
+ run usermod -a -G "${groupname}" "${username}" && return 0
+ fi
+
+ # FreeBSD
+ if check_cmd pw
+ then
+ run pw groupmod "${groupname}" -m "${username}" && return 0
+ fi
+
+ # BusyBox
+ if check_cmd addgroup
then
- echo >&2 "Adding netdata user group ..."
- run groupadd -r netdata
+ run addgroup "${username}" "${groupname}" && return 0
+ fi
+
+ echo >&2 "Failed to add user ${username} to group ${groupname} !"
+ return 1
fi
+}
- getent passwd netdata > /dev/null
- if [ $? -ne 0 ]
+iscontainer() {
+ # man systemd-detect-virt
+ local cmd=$(which systemd-detect-virt 2>/dev/null || command -v systemd-detect-virt 2>/dev/null)
+ if [ ! -z "${cmd}" -a -x "${cmd}" ]
then
- echo >&2 "Adding netdata user account ..."
- run useradd -r -g netdata -c netdata -s $(which nologin || echo '/bin/false') -d / netdata
+ "${cmd}" --container >/dev/null 2>&1 && return 0
fi
- getent group docker > /dev/null
- if [ $? -eq 0 ]
+ # /proc/1/sched exposes the host's pid of our init !
+ # http://stackoverflow.com/a/37016302
+ local pid=$( cat /proc/1/sched | head -n 1 | { IFS='(),#:' read name pid th threads; echo $pid; } )
+ local p=$(( pid + 0 ))
+ [ ${pid} -ne 1 ] && return 0
+
+ # lxc sets environment variable 'container'
+ [ ! -z "${container}" ] && return 0
+
+ # docker creates /.dockerenv
+ # http://stackoverflow.com/a/25518345
+ [ -f "/.dockerenv" ] && return 0
+
+ # ubuntu and debian supply /bin/running-in-container
+ # https://www.apt-browse.org/browse/ubuntu/trusty/main/i386/upstart/1.12.1-0ubuntu4/file/bin/running-in-container
+ if [ -x "/bin/running-in-container" ]
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
+ "/bin/running-in-container" >/dev/null 2>&1 && return 0
fi
+ return 1
+}
+
+run find ./system/ -type f -a \! -name \*.in -a \! -name Makefile\* -a \! -name \*.conf -a \! -name \*.service -a \! -name \*.logrotate -exec chmod 755 {} \;
+
+NETDATA_ADDED_TO_DOCKER=0
+NETDATA_ADDED_TO_NGINX=0
+NETDATA_ADDED_TO_VARNISH=0
+NETDATA_ADDED_TO_HAPROXY=0
+if [ ${UID} -eq 0 ]
+ then
+ portable_add_group netdata
+ portable_add_user netdata
+ portable_add_user_to_group docker netdata && NETDATA_ADDED_TO_DOCKER=1
+ portable_add_user_to_group nginx netdata && NETDATA_ADDED_TO_NGINX=1
+ portable_add_user_to_group varnish netdata && NETDATA_ADDED_TO_VARNISH=1
+ portable_add_user_to_group haproxy netdata && NETDATA_ADDED_TO_HAPROXY=1
+
if [ -d /etc/logrotate.d -a ! -f /etc/logrotate.d/netdata ]
then
echo >&2 "Adding netdata logrotate configuration ..."
run cp system/netdata.logrotate /etc/logrotate.d/netdata
fi
+
+ if [ -f /etc/logrotate.d/netdata ]
+ then
+ echo >&2 "Fixing netdata logrotate permissions ..."
+ run chmod 644 /etc/logrotate.d/netdata
+ fi
fi
@@ -603,17 +737,20 @@ config_option() {
echo "${value}"
}
-# user
-defuser="netdata"
-[ ! "${UID}" = "0" ] && defuser="${USER}"
-NETDATA_USER="$( config_option "run as user" "${defuser}" )"
+# the user netdata will run as
+if [ "${UID}" = "0" ]
+ then
+ NETDATA_USER="$( config_option "run as user" "netdata" )"
+else
+ NETDATA_USER="${USER}"
+fi
-NETDATA_WEB_USER="$( config_option "web files owner" "${defuser}" )"
+# the owners of the web files
+NETDATA_WEB_USER="$( config_option "web files owner" "${NETDATA_USER}" )"
NETDATA_WEB_GROUP="$( config_option "web files group" "${NETDATA_WEB_USER}" )"
# debug flags
-defdebug=0
-NETDATA_DEBUG="$( config_option "debug flags" ${defdebug} )"
+NETDATA_DEBUG="$( config_option "debug flags" 0 )"
# port
defport=19999
@@ -648,7 +785,35 @@ 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" "${NETDATA_CONF_DIR}/node.d"
+
+# --- conf dir ----
+
+for x in "python.d" "charts.d" "node.d"
+do
+ if [ ! -d "${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
@@ -656,32 +821,59 @@ do
run mkdir -p "${x}" || exit 1
fi
- if [ ${UID} -eq 0 ]
+ run chown -R "${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 [ "${x}" = "${NETDATA_WEB_DIR}" ]
+ run setcap cap_dac_read_search,cap_sys_ptrace+ep "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin"
+ setcap_ret=$?
+
+ if [ ${setcap_ret} -eq 0 ]
then
- run chown -R "${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 ${NETDATA_USER}..."
+ # if we managed to setcap
+ # but we fail to execute apps.plugin
+ # trigger setuid to root
+ "${NETDATA_PREFIX}/usr/libexec/netdata/plugins.d/apps.plugin" -v >/dev/null 2>&1
+ setcap_ret=$?
fi
fi
- run chmod 0755 "${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 ]
+ 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"
+
+
# -----------------------------------------------------------------------------
# check if we can re-start netdata
@@ -696,7 +888,7 @@ if [ ${DONOTSTART} -eq 1 ]
then
chown "${NETDATA_USER}" "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
- chmod 0664 "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
+ chmod 0644 "${NETDATA_PREFIX}/etc/netdata/netdata.conf"
fi
banner "is installed now!"
echo >&2 " enjoy real-time performance and health monitoring..."
@@ -707,46 +899,52 @@ 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
+ 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="$1" ret=0 count=0
+ local pid="${1}" ret=0 count=0
- isnetdata $pid || return 0
+ isnetdata ${pid} || return 0
- printf >&2 "Stopping netdata on pid $pid ..."
- while [ ! -z "$pid" -a $ret -eq 0 ]
+ printf >&2 "Stopping netdata on pid ${pid} ..."
+ while [ ! -z "$pid" -a ${ret} -eq 0 ]
do
- if [ $count -gt 45 ]
+ if [ ${count} -gt 45 ]
then
- echo >&2 "Cannot stop the running netdata on pid $pid."
+ echo >&2 "Cannot stop the running netdata on pid ${pid}."
return 1
fi
count=$(( count + 1 ))
- run kill $pid 2>/dev/null
+ run kill ${pid} 2>/dev/null
ret=$?
- test $ret -eq 0 && printf >&2 "." && sleep 2
+ test ${ret} -eq 0 && printf >&2 "." && sleep 2
done
echo >&2
- if [ $ret -eq 0 ]
+ if [ ${ret} -eq 0 ]
then
- echo >&2 "SORRY! CANNOT STOP netdata ON PID $pid !"
+ echo >&2 "SORRY! CANNOT STOP netdata ON PID ${pid} !"
return 1
fi
- echo >&2 "netdata on pid $pid stopped."
+ echo >&2 "netdata on pid ${pid} stopped."
return 0
}
stop_all_netdata() {
- local p
+ local p myns ns
+
+ myns="$(readlink /proc/self/ns/pid 2>/dev/null)"
echo >&2 "Stopping a (possibly) running netdata..."
@@ -755,27 +953,93 @@ stop_all_netdata() {
$(cat /var/run/netdata/netdata.pid 2>/dev/null) \
$(pidof netdata 2>/dev/null)
do
- stop_netdata_on_pid $p
+ ns="$(readlink /proc/${p}/ns/pid 2>/dev/null)"
+
+ if [ -z "${myns}" -o -z "${ns}" -o "${myns}" = "${ns}" ]
+ then
+ stop_netdata_on_pid ${p}
+ fi
done
}
# -----------------------------------------------------------------------------
-# check netdata for systemd
+# check for systemd
issystemd() {
+ local pids p myns ns systemctl
+
# if the directory /etc/systemd/system does not exit, it is not systemd
[ ! -d /etc/systemd/system ] && return 1
+ # if there is no systemctl command, it is not systemd
+ systemctl=$(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 $(readlink /proc/1/exe) 2>/dev/null)" = "systemd" ] && return 0
- # if systemd is running, it is systemd
- pidof systemd >/dev/null 2>&1 && return 0
+ # if systemd is not running, it is not systemd
+ pids=$(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 "${key}" = "ubuntu-14.04" -o "${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
+}
+
started=0
if [ "${UID}" -eq 0 ]
then
@@ -796,6 +1060,8 @@ if [ "${UID}" -eq 0 ]
stop_all_netdata
service netdata restart && started=1
+ else
+ install_non_systemd_init
fi
if [ ${started} -eq 0 ]
@@ -854,13 +1120,13 @@ if [ ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf" ]
ret=$?
# try curl
- if [ $ret -ne 0 -o ! -s "${NETDATA_PREFIX}/etc/netdata/netdata.conf.new" ]
+ 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" ]
+ 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"
@@ -1040,6 +1306,12 @@ if [ -f /etc/systemd/system/netdata.service ]
rm -i /etc/systemd/system/netdata.service
fi
+if [ -f /etc/init.d/netdata ]
+ then
+ echo "Deleting /etc/init.d/netdata ..."
+ rm -i /etc/init.d/netdata
+fi
+
getent passwd netdata > /dev/null
if [ $? -eq 0 ]
then
@@ -1067,6 +1339,34 @@ if [ $? -eq 0 -a "${NETDATA_ADDED_TO_DOCKER}" = "1" ]
echo " gpasswd -d netdata docker"
fi
+getent group nginx > /dev/null
+if [ $? -eq 0 -a "${NETDATA_ADDED_TO_NGINX}" = "1" ]
+ then
+ echo
+ echo "You may also want to remove the netdata user from the nginx group"
+ echo "by running:"
+ echo " gpasswd -d netdata nginx"
+fi
+
+getent group varnish > /dev/null
+if [ $? -eq 0 -a "${NETDATA_ADDED_TO_VARNISH}" = "1" ]
+ then
+ echo
+ echo "You may also want to remove the netdata user from the varnish group"
+ echo "by running:"
+ echo " gpasswd -d netdata varnish"
+fi
+
+getent group haproxy > /dev/null
+if [ $? -eq 0 -a "${NETDATA_ADDED_TO_HAPROXY}" = "1" ]
+ then
+ echo
+ echo "You may also want to remove the netdata user from the haproxy group"
+ echo "by running:"
+ echo " gpasswd -d netdata haproxy"
+fi
+
+
UNINSTALL
chmod 750 netdata-uninstaller.sh