packaging/installer/netdata-uninstaller.sh
#!/bin/sh
#
# This is the netdata uninstaller script
#
# Variables needed by script and taken from '.environment' file:
# - NETDATA_PREFIX
# - NETDATA_ADDED_TO_GROUPS
#
# Copyright: SPDX-License-Identifier: GPL-3.0-or-later
#
# Author: Paweł Krupa <paulfantom@gmail.com>
# Author: Pavlos Emm. Katsoulakis <paul@netdata.cloud>
#
# Next unused error code: R0005
usage="$(basename "$0") [-h] [-f ] -- program to calculate the answer to life, the universe and everything
where:
-e, --env path to environment file (defaults to '/etc/netdata/.environment'
-f, --force force uninstallation and do not ask any questions
-h show this help text
-y, --yes flag needs to be set to proceed with uninstallation"
FILE_REMOVAL_STATUS=0
ENVIRONMENT_FILE="/etc/netdata/.environment"
# shellcheck disable=SC2034
INTERACTIVITY="-i"
YES=0
while :; do
case "$1" in
-h | --help)
echo "$usage" >&2
exit 1
;;
-f | --force)
INTERACTIVITY="-f"
shift
;;
-y | --yes)
YES=1
FLAG=-y
shift
;;
-e | --env)
ENVIRONMENT_FILE="$2"
shift 2
;;
-*)
echo "$usage" >&2
exit 1
;;
*) break ;;
esac
done
if [ -n "${script_source}" ]; then
script_name="$(basename "${script_source}")"
else
script_name="netdata-uninstaller.sh"
fi
info() {
echo >&2 "$(date) : INFO: ${script_name}: " "${1}"
}
error() {
echo >&2 "$(date) : ERROR: ${script_name}: " "${1}"
if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
NETDATA_WARNINGS="${NETDATA_WARNINGS}\n - ${1}"
fi
}
fatal() {
echo >&2 "$(date) : FATAL: ${script_name}: FAILED TO UNINSTALL NETDATA: " "${1}"
if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
NETDATA_WARNINGS="${NETDATA_WARNINGS}\n - ${1}"
fi
exit_reason "${1}" "${2}"
exit 1
}
exit_reason() {
if [ -n "${NETDATA_SAVE_WARNINGS}" ]; then
EXIT_REASON="${1}"
EXIT_CODE="${2}"
if [ -n "${NETDATA_PROPAGATE_WARNINGS}" ]; then
export EXIT_REASON
export EXIT_CODE
export NETDATA_WARNINGS
fi
fi
}
if [ "$YES" != "1" ]; then
echo >&2 "This script will REMOVE netdata from your system."
echo >&2 "Run it again with --yes to do it."
exit_reason "User did not accept uninstalling." R0001
exit 1
fi
if [ "$(id -u)" -ne 0 ]; then
error "This script SHOULD be run as root or otherwise it won't delete all installed components."
key="n"
read -r 1 -p "Do you want to continue as non-root user [y/n] ? " key
if [ "$key" != "y" ] && [ "$key" != "Y" ]; then
exit_reason "User cancelled uninstall." R0002
exit 1
fi
fi
user_input() {
if [ "${INTERACTIVITY}" = "-i" ]; then
TEXT="$1 [y/n]"
while true; do
echo "$TEXT"
read -r yn
case "$yn" in
[Yy]*) return 0;;
[Nn]*) return 1;;
*) echo "Please answer yes or no.";;
esac
done
fi
}
_cannot_use_tmpdir() {
testfile="$(TMPDIR="${1}" mktemp -q -t netdata-test.XXXXXXXXXX)"
ret=0
if [ -z "${testfile}" ]; then
return "${ret}"
fi
if printf '#!/bin/sh\necho SUCCESS\n' > "${testfile}"; then
if chmod +x "${testfile}"; then
if [ "$("${testfile}")" = "SUCCESS" ]; then
ret=1
fi
fi
fi
rm -f "${testfile}"
return "${ret}"
}
create_tmp_directory() {
if [ -z "${TMPDIR}" ] || _cannot_use_tmpdir "${TMPDIR}"; then
if _cannot_use_tmpdir /tmp; then
if _cannot_use_tmpdir "${PWD}"; then
fatal "Unable to find a usable temporary directory. Please set \$TMPDIR to a path that is both writable and allows execution of files and try again." R0003
else
TMPDIR="${PWD}"
fi
else
TMPDIR="/tmp"
fi
fi
mktemp -d -t netdata-uninstaller-XXXXXXXXXX
}
tmpdir="$(create_tmp_directory)"
detect_existing_install() {
if pkg_installed netdata; then
ndprefix="/"
else
if [ -n "${INSTALL_PREFIX}" ]; then
searchpath="${INSTALL_PREFIX}/bin:${INSTALL_PREFIX}/sbin:${INSTALL_PREFIX}/usr/bin:${INSTALL_PREFIX}/usr/sbin:${PATH}"
searchpath="${INSTALL_PREFIX}/netdata/bin:${INSTALL_PREFIX}/netdata/sbin:${INSTALL_PREFIX}/netdata/usr/bin:${INSTALL_PREFIX}/netdata/usr/sbin:${searchpath}"
else
searchpath="${PATH}"
fi
ndpath="$(PATH="${searchpath}" command -v netdata 2>/dev/null)"
if [ -z "$ndpath" ] && [ -x /opt/netdata/bin/netdata ]; then
ndpath="/opt/netdata/bin/netdata"
fi
if [ -n "${ndpath}" ]; then
ndprefix="$(dirname "$(dirname "${ndpath}")")"
fi
if echo "${ndprefix}" | grep -Eq '/usr$'; then
ndprefix="$(dirname "${ndprefix}")"
fi
fi
if [ -n "${ndprefix}" ]; then
typefile="${ndprefix}/etc/netdata/.install-type"
envfile="${ndprefix}/etc/netdata/.environment"
if [ -r "${typefile}" ]; then
${ROOTCMD} sh -c "cat \"${typefile}\" > \"${tmpdir}/install-type\""
# shellcheck disable=SC1090,SC1091
. "${tmpdir}/install-type"
else
INSTALL_TYPE="unknown"
fi
if [ "${INSTALL_TYPE}" = "unknown" ] || [ "${INSTALL_TYPE}" = "custom" ]; then
if [ -r "${envfile}" ]; then
${ROOTCMD} sh -c "cat \"${envfile}\" > \"${tmpdir}/environment\""
# shellcheck disable=SC1091
. "${tmpdir}/environment"
if [ -n "${NETDATA_IS_STATIC_INSTALL}" ]; then
if [ "${NETDATA_IS_STATIC_INSTALL}" = "yes" ]; then
INSTALL_TYPE="legacy-static"
else
INSTALL_TYPE="legacy-build"
fi
fi
fi
fi
fi
}
pkg_installed() {
case "${DISTRO_COMPAT_NAME}" in
debian|ubuntu)
dpkg-query --show --showformat '${Status}' "${1}" 2>&1 | cut -f 1 -d ' ' | grep -q '^install$'
return $?
;;
centos|fedora|opensuse|ol)
rpm -q "${1}" > /dev/null 2>&1
return $?
;;
*)
return 1
;;
esac
}
detect_existing_install
if [ -x "$(command -v apt-get)" ] && [ "${INSTALL_TYPE}" = "binpkg-deb" ]; then
if dpkg -s netdata > /dev/null; then
echo "Found netdata native installation"
if user_input "Do you want to remove netdata? "; then
# shellcheck disable=SC2086
apt-get remove netdata ${FLAG}
fi
if dpkg -s netdata-repo-edge > /dev/null; then
if user_input "Do you want to remove netdata-repo-edge? "; then
# shellcheck disable=SC2086
apt-get remove netdata-repo-edge ${FLAG}
fi
fi
if dpkg -s netdata-repo > /dev/null; then
if user_input "Do you want to remove netdata-repo? "; then
# shellcheck disable=SC2086
apt-get remove netdata-repo ${FLAG}
fi
fi
exit 0
fi
elif [ -x "$(command -v dnf)" ] && [ "${INSTALL_TYPE}" = "binpkg-rpm" ]; then
if rpm -q netdata > /dev/null; then
echo "Found netdata native installation."
if user_input "Do you want to remove netdata? "; then
# shellcheck disable=SC2086
dnf remove netdata ${FLAG}
fi
if rpm -q netdata-repo-edge > /dev/null; then
if user_input "Do you want to remove netdata-repo-edge? "; then
# shellcheck disable=SC2086
dnf remove netdata-repo-edge ${FLAG}
fi
fi
if rpm -q netdata-repo > /dev/null; then
if user_input "Do you want to remove netdata-repo? "; then
# shellcheck disable=SC2086
dnf remove netdata-repo ${FLAG}
fi
fi
exit 0
fi
elif [ -x "$(command -v yum)" ] && [ "${INSTALL_TYPE}" = "binpkg-rpm" ]; then
if rpm -q netdata > /dev/null; then
echo "Found netdata native installation."
if user_input "Do you want to remove netdata? "; then
# shellcheck disable=SC2086
yum remove netdata ${FLAG}
fi
if rpm -q netdata-repo-edge > /dev/null; then
if user_input "Do you want to remove netdata-repo-edge? "; then
# shellcheck disable=SC2086
yum remove netdata-repo-edge ${FLAG}
fi
fi
if rpm -q netdata-repo > /dev/null; then
if user_input "Do you want to remove netdata-repo? "; then
# shellcheck disable=SC2086
yum remove netdata-repo ${FLAG}
fi
fi
exit 0
fi
elif [ -x "$(command -v zypper)" ] && [ "${INSTALL_TYPE}" = "binpkg-rpm" ]; then
if [ "${FLAG}" = "-y" ]; then
FLAG=-n
fi
if zypper search -i netdata > /dev/null; then
echo "Found netdata native installation."
if user_input "Do you want to remove netdata? "; then
# shellcheck disable=SC2086
zypper ${FLAG} remove netdata
fi
if zypper search -i netdata-repo-edge > /dev/null; then
if user_input "Do you want to remove netdata-repo-edge? "; then
# shellcheck disable=SC2086
zypper ${FLAG} remove netdata-repo-edge
fi
fi
if zypper search -i netdata-repo > /dev/null; then
if user_input "Do you want to remove netdata-repo? "; then
# shellcheck disable=SC2086
zypper ${FLAG} remove netdata-repo
fi
fi
exit 0
fi
fi
# -----------------------------------------------------------------------------
# portable service command
service_cmd="$(command -v service 2> /dev/null)"
rcservice_cmd="$(command -v rc-service 2> /dev/null)"
systemctl_cmd="$(command -v systemctl 2> /dev/null)"
service() {
cmd="${1}"
action="${2}"
if [ -n "${systemctl_cmd}" ]; then
run "${systemctl_cmd}" "${action}" "${cmd}"
return $?
elif [ -n "${service_cmd}" ]; then
run "${service_cmd}" "${cmd}" "${action}"
return $?
elif [ -n "${rcservice_cmd}" ]; then
run "${rcservice_cmd}" "${cmd}" "${action}"
return $?
fi
return 1
}
# -----------------------------------------------------------------------------
setup_terminal() {
TPUT_RESET=""
TPUT_YELLOW=""
TPUT_WHITE=""
TPUT_BGRED=""
TPUT_BGGREEN=""
TPUT_BOLD=""
TPUT_DIM=""
# Is stderr on the terminal? If not, then fail
test -t 2 || return 1
if command -v tput 1> /dev/null 2>&1; then
if [ $(($(tput colors 2> /dev/null))) -ge 8 ]; then
# Enable colors
TPUT_RESET="$(tput sgr 0)"
TPUT_YELLOW="$(tput setaf 3)"
TPUT_WHITE="$(tput setaf 7)"
TPUT_BGRED="$(tput setab 1)"
TPUT_BGGREEN="$(tput setab 2)"
TPUT_BOLD="$(tput bold)"
TPUT_DIM="$(tput dim)"
fi
fi
return 0
}
setup_terminal || echo > /dev/null
ESCAPED_PRINT_METHOD=
if printf "%s " test > /dev/null 2>&1; then
ESCAPED_PRINT_METHOD="printfq"
fi
escaped_print() {
if [ "${ESCAPED_PRINT_METHOD}" = "printfq" ]; then
printf "%s " "${@}"
else
printf "%s" "${*}"
fi
return 0
}
run_logfile="/dev/null"
run() {
user="${USER--}"
dir="${PWD}"
if [ "$(id -u)" = "0" ]; then
info="[root ${dir}]# "
info_console="[${TPUT_DIM}${dir}${TPUT_RESET}]# "
else
info="[${user} ${dir}]$ "
info_console="[${TPUT_DIM}${dir}${TPUT_RESET}]$ "
fi
{
printf "%s" "${info}"
escaped_print "${@}"
printf "%s" " ... "
} >> "${run_logfile}"
printf "%s" "${info_console}${TPUT_BOLD}${TPUT_YELLOW}" >&2
escaped_print >&2 "${@}"
printf "%s\n" "${TPUT_RESET}" >&2
"${@}"
ret=$?
if [ ${ret} -ne 0 ]; then
printf >&2 "%s FAILED %s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}"
printf >> "${run_logfile}" "FAILED with exit code %s\n" "${ret}"
NETDATA_WARNINGS="${NETDATA_WARNINGS}\n - Command \"${*}\" failed with exit code ${ret}."
else
printf >&2 "%s OK %s\n\n" "${TPUT_BGGREEN}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}"
printf >> "${run_logfile}" "OK\n"
fi
return ${ret}
}
portable_del_group() {
groupname="${1}"
# Check if group exist
info "Removing ${groupname} user group ..."
# Linux
if command -v groupdel 1> /dev/null 2>&1; then
if get_group "${groupname}" > /dev/null 2>&1; then
run groupdel "${groupname}" && return 0
else
info "Group ${groupname} already removed in a previous step."
return 0
fi
fi
# mac OS
if command -v dseditgroup 1> /dev/null 2>&1; then
if dseditgroup -o read netdata 1> /dev/null 2>&1; then
run dseditgroup -o delete "${groupname}" && return 0
else
info "Could not find group ${groupname}, nothing to do"
return 0
fi
fi
error "Group ${groupname} was not automatically removed, you might have to remove it manually"
return 1
}
issystemd() {
pids=''
p=''
myns=''
ns=''
systemctl=''
# if the directory /lib/systemd/system OR /usr/lib/systemd/system (SLES 12.x) does not exit, it is not systemd
if [ ! -d /lib/systemd/system ] && [ ! -d /usr/lib/systemd/system ]; then
return 1
fi
# if there is no systemctl command, it is not systemd
systemctl=$(command -v systemctl 2> /dev/null)
if [ -z "${systemctl}" ] || [ ! -x "${systemctl}" ]; then
return 1
fi
# 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=$(safe_pidof systemd 2> /dev/null)
[ -z "${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/${p}/ns/pid" 2> /dev/null)"
# if pid of systemd is in our namespace, it is systemd
[ -n "${myns}" ] && [ "${myns}" = "${ns}" ] && return 0
done
# else, it is not systemd
return 1
}
portable_del_user() {
username="${1}"
info "Deleting ${username} user account ..."
# Linux
if command -v userdel 1> /dev/null 2>&1; then
run userdel -f "${username}" && return 0
fi
# mac OS
if command -v sysadminctl 1> /dev/null 2>&1; then
run sysadminctl -deleteUser "${username}" && return 0
fi
error "User ${username} could not be deleted from system, you might have to remove it manually"
return 1
}
portable_del_user_from_group() {
groupname="${1}"
username="${2}"
if command -v getent > /dev/null 2>&1; then
getent group "${1:-""}" | grep -q "${2}"
else
grep "^${1}:" /etc/group | grep -q "${2}"
fi
ret=$?
[ "${ret}" != "0" ] && return 0
# username is not in group
info "Deleting ${username} user from ${groupname} group ..."
# Linux
if command -v gpasswd 1> /dev/null 2>&1; then
run gpasswd -d "netdata" "${group}" && return 0
fi
# FreeBSD
if command -v pw 1> /dev/null 2>&1; then
run pw groupmod "${groupname}" -d "${username}" && return 0
fi
# BusyBox
if command -v delgroup 1> /dev/null 2>&1; then
run delgroup "${username}" "${groupname}" && return 0
fi
# mac OS
if command -v dseditgroup 1> /dev/null 2>&1; then
run dseditgroup -o delete -u "${username}" "${groupname}" && return 0
fi
error "Failed to delete user ${username} from group ${groupname} !"
return 1
}
quit_msg() {
echo
if [ "$FILE_REMOVAL_STATUS" -eq 0 ]; then
fatal "Failed to completely remove Netdata from this system." R0004
else
info "Netdata files were successfully removed from your system"
fi
}
rm_file() {
FILE="$1"
if [ -f "${FILE}" ]; then
if user_input "Do you want to delete this file '$FILE' ? "; then
run rm -v "${FILE}"
fi
fi
}
rm_dir() {
DIR="$1"
if [ -n "$DIR" ] && [ -d "$DIR" ]; then
if user_input "Do you want to delete this directory '$DIR' ? "; then
run rm -v -f -R "${DIR}"
fi
fi
}
safe_pidof() {
pidof_cmd="$(command -v pidof 2> /dev/null)"
if [ -n "${pidof_cmd}" ]; then
${pidof_cmd} "${@}"
return $?
else
ps -acxo pid,comm |
sed "s/^ *//g" |
grep netdata |
cut -d ' ' -f 1
return $?
fi
}
pidisnetdata() {
if [ -d /proc/self ]; then
if [ -z "$1" ] || [ ! -f "/proc/$1/stat" ]; then
return 1
fi
[ "$(cut -d '(' -f 2 "/proc/$1/stat" | cut -d ')' -f 1)" = "netdata" ] && return 0
return 1
fi
return 0
}
stop_netdata_on_pid() {
pid="${1}"
ret=0
count=0
pidisnetdata "${pid}" || return 0
info "Stopping netdata on pid ${pid} ..."
while [ -n "$pid" ] && [ ${ret} -eq 0 ]; do
if [ ${count} -gt 24 ]; then
error "Cannot stop the running netdata on pid ${pid}."
return 1
fi
count=$((count + 1))
pidisnetdata "${pid}" || ret=1
if [ ${ret} -eq 1 ]; then
break
fi
if [ ${count} -lt 12 ]; then
run kill "${pid}" 2> /dev/null
ret=$?
else
run kill -9 "${pid}" 2> /dev/null
ret=$?
fi
test ${ret} -eq 0 && printf >&2 "." && sleep 5
done
echo >&2
if [ ${ret} -eq 0 ]; then
error "SORRY! CANNOT STOP netdata ON PID ${pid} !"
return 1
fi
info "netdata on pid ${pid} stopped."
return 0
}
netdata_pids() {
p=''
ns=''
myns="$(readlink /proc/self/ns/pid 2> /dev/null)"
for p in \
$(cat /var/run/netdata.pid 2> /dev/null) \
$(cat /var/run/netdata/netdata.pid 2> /dev/null) \
$(safe_pidof netdata 2> /dev/null); do
ns="$(readlink "/proc/${p}/ns/pid" 2> /dev/null)"
if [ -z "${myns}" ] || [ -z "${ns}" ] || [ "${myns}" = "${ns}" ]; then
pidisnetdata "${p}" && echo "${p}"
fi
done
}
stop_all_netdata() {
p=''
stop_success=0
if [ "$(id -u)" -eq 0 ]; then
uname="$(uname 2> /dev/null)"
# Any of these may fail, but we need to not bail if they do.
if issystemd; then
if systemctl stop netdata; then
stop_success=1
sleep 5
fi
elif [ "${uname}" = "Darwin" ]; then
if launchctl stop netdata; then
stop_success=1
sleep 5
fi
elif [ "${uname}" = "FreeBSD" ]; then
if /etc/rc.d/netdata stop; then
stop_success=1
sleep 5
fi
else
if service netdata stop; then
stop_success=1
sleep 5
fi
fi
fi
if [ "$stop_success" = "0" ]; then
if [ -n "$(netdata_pids)" ] && [ -n "$(command -v netdatacli)" ]; then
netdatacli shutdown-agent
sleep 20
fi
for p in $(netdata_pids); do
# shellcheck disable=SC2086
stop_netdata_on_pid ${p}
done
fi
}
trap quit_msg EXIT
# shellcheck source=/dev/null
# shellcheck disable=SC1090
. "${ENVIRONMENT_FILE}" || exit 1
#### STOP NETDATA
info "Stopping a possibly running netdata..."
stop_all_netdata
if [ "$(uname -s)" = "Darwin" ]; then
launchctl unload /Library/LaunchDaemons/com.github.netdata.plist 2>/dev/null
fi
#### REMOVE NETDATA FILES
rm_file /etc/logrotate.d/netdata
rm_file /usr/lib/systemd/journald@netdata.conf.d/netdata.conf
rm_file /etc/systemd/system/netdata.service
rm_file /lib/systemd/system/netdata.service
rm_file /usr/lib/systemd/system/netdata.service
rm_file /etc/systemd/system/netdata-updater.service
rm_file /lib/systemd/system/netdata-updater.service
rm_file /usr/lib/systemd/system/netdata-updater.service
rm_file /etc/systemd/system/netdata-updater.timer
rm_file /lib/systemd/system/netdata-updater.timer
rm_file /usr/lib/systemd/system/netdata-updater.timer
rm_file /usr/lib/systemd/system-preset/50-netdata.preset
rm_file /lib/systemd/system-preset/50-netdata.preset
rm_file /etc/init.d/netdata
rm_file /etc/periodic/daily/netdata-updater
rm_file /etc/cron.daily/netdata-updater
rm_file /etc/cron.d/netdata-updater
rm_file /etc/cron.d/netdata-updater-daily
rm_file /Library/LaunchDaemons/com.github.netdata.plist
if [ -n "${NETDATA_PREFIX}" ] && [ -d "${NETDATA_PREFIX}" ] && [ "netdata" = "$(basename "$NETDATA_PREFIX")" ] ; then
rm_dir "${NETDATA_PREFIX}"
else
rm_file "${NETDATA_PREFIX}/usr/sbin/netdata"
rm_file "${NETDATA_PREFIX}/usr/sbin/netdatacli"
rm_file "${NETDATA_PREFIX}/usr/sbin/netdata-claim.sh"
rm_file "${NETDATA_PREFIX}/usr/sbin/log2journal"
rm_file "${NETDATA_PREFIX}/usr/sbin/systemd-cat-native"
rm_file "/tmp/netdata-ipc"
rm_file "/tmp/netdata-service-cmds"
rm_dir "${NETDATA_PREFIX}/usr/share/netdata"
rm_dir "${NETDATA_PREFIX}/usr/libexec/netdata"
rm_dir "${NETDATA_PREFIX}/var/lib/netdata"
rm_dir "${NETDATA_PREFIX}/var/cache/netdata"
rm_dir "${NETDATA_PREFIX}/var/log/netdata"
rm_dir "${NETDATA_PREFIX}/etc/netdata"
rm_dir /usr/lib/systemd/journald@netdata.conf.d/
fi
if [ -n "${tmpdir}" ]; then
run rm -rf "${tmpdir}" || true
fi
FILE_REMOVAL_STATUS=1
#### REMOVE USER
if user_input "Do you want to delete 'netdata' system user ? "; then
portable_del_user "netdata" || :
elif [ -n "$NETDATA_ADDED_TO_GROUPS" ]; then
if user_input "Do you want to delete 'netdata' from following groups: '$NETDATA_ADDED_TO_GROUPS' ? "; then
for group in $NETDATA_ADDED_TO_GROUPS; do
portable_del_user_from_group "${group}" "netdata"
done
fi
fi
### REMOVE GROUP
if user_input "Do you want to delete 'netdata' system group ? "; then
portable_del_group "netdata" || :
fi