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-rwxr-xr-xpackaging/installer/netdata-uninstaller.sh499
1 files changed, 499 insertions, 0 deletions
diff --git a/packaging/installer/netdata-uninstaller.sh b/packaging/installer/netdata-uninstaller.sh
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+++ b/packaging/installer/netdata-uninstaller.sh
@@ -0,0 +1,499 @@
+#!/usr/bin/env bash
+#
+# 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>
+
+usage="$(basename "$0") [-h] [-f ] -- program to calculate the answer to life, the universe and everything
+
+where:
+ -e, --env path to environment file (defauls 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"
+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
+ shift
+ ;;
+ -e | --env)
+ ENVIRONMENT_FILE="$2"
+ shift 2
+ ;;
+ -*)
+ echo "$usage" >&2
+ exit 1
+ ;;
+ *) break ;;
+ esac
+done
+
+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 1
+fi
+
+if [[ $EUID -ne 0 ]]; then
+ echo >&2 "This script SHOULD be run as root or otherwise it won't delete all installed components."
+ key="n"
+ read -r -s -n 1 -p "Do you want to continue as non-root user [y/n] ? " key
+ if [ "$key" != "y" ] && [ "$key" != "Y" ]; then
+ exit 1
+ fi
+fi
+
+# -----------------------------------------------------------------------------
+# portable service command
+
+service_cmd="$(command -v service 2> /dev/null)"
+rcservice_cmd="$(command -v rc-service 2> /dev/null)"
+systemctl_cmd="$(command -v systemctl 2> /dev/null)"
+service() {
+
+ local 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="$(tput dim)"
+ fi
+ fi
+
+ return 0
+}
+setup_terminal || echo > /dev/null
+
+run_ok() {
+ printf >&2 "%s OK %s\n\n" "${TPUT_BGGREEN}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}"
+}
+
+run_failed() {
+ printf >&2 "%s FAILED %s\n\n" "${TPUT_BGRED}${TPUT_WHITE}${TPUT_BOLD}" "${TPUT_RESET}"
+}
+
+ESCAPED_PRINT_METHOD=
+if printf "%q " test > /dev/null 2>&1; then
+ ESCAPED_PRINT_METHOD="printfq"
+fi
+escaped_print() {
+ if [ "${ESCAPED_PRINT_METHOD}" = "printfq" ]; then
+ printf "%q " "${@}"
+ else
+ printf "%s" "${*}"
+ fi
+ return 0
+}
+
+run_logfile="/dev/null"
+run() {
+ local user="${USER--}" dir="${PWD}" info info_console
+
+ if [ "${UID}" = "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
+
+ "${@}"
+
+ local ret=$?
+ if [ ${ret} -ne 0 ]; then
+ run_failed
+ printf >> "${run_logfile}" "FAILED with exit code %s\n" "${ret}"
+ else
+ run_ok
+ printf >> "${run_logfile}" "OK\n"
+ fi
+
+ return ${ret}
+}
+
+portable_del_group() {
+ local groupname="${1}"
+
+ # Check if group exist
+ echo >&2 "Removing ${groupname} user group ..."
+
+ # Linux
+ if command -v groupdel 1> /dev/null 2>&1; then
+ if grep -q "${groupname}" /etc/group; then
+ run groupdel "${groupname}" && return 0
+ else
+ echo >&2 "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
+ echo >&2 "Could not find group ${groupname}, nothing to do"
+ return 0
+ fi
+ fi
+
+ echo >&2 "Group ${groupname} was not automatically removed, you might have to remove it manually"
+ return 1
+}
+
+issystemd() {
+ local pids p myns ns systemctl
+
+ # if the directory /lib/systemd/system OR /usr/lib/systemd/system (SLES 12.x) does not exit, it is not systemd
+ if [ ! -d /lib/systemd/system ] && [ ! -d /usr/lib/systemd/system ]; then
+ return 1
+ fi
+
+ # if there is no systemctl command, it is not systemd
+ systemctl=$(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() {
+ local username="${1}"
+ echo >&2 "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
+
+ echo >&2 "User ${username} could not be deleted from system, you might have to remove it manually"
+ return 1
+}
+
+portable_del_user_from_group() {
+ local groupname="${1}" username="${2}"
+
+ # username is not in group
+ echo >&2 "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
+
+ echo >&2 "Failed to delete user ${username} from group ${groupname} !"
+ return 1
+}
+
+quit_msg() {
+ echo
+ if [ "$FILE_REMOVAL_STATUS" -eq 0 ]; then
+ echo >&2 "Something went wrong :("
+ else
+ echo >&2 "Netdata files were successfully removed from your system"
+ fi
+}
+
+user_input() {
+ TEXT="$1"
+ if [ "${INTERACTIVITY}" = "-i" ]; then
+ read -r -p "$TEXT" >&2
+ fi
+}
+
+rm_file() {
+ FILE="$1"
+ if [ -f "${FILE}" ]; then
+ run rm -v ${INTERACTIVITY} "${FILE}"
+ fi
+}
+
+rm_dir() {
+ DIR="$1"
+ if [ -n "$DIR" ] && [ -d "$DIR" ]; then
+ user_input "Press ENTER to recursively delete directory '$DIR' > "
+ run rm -v -f -R "${DIR}"
+ fi
+}
+
+safe_pidof() {
+ local pidof_cmd
+ pidof_cmd="$(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/$1/stat" | cut -d ')' -f 1)" = "netdata" ] && return 0
+ return 1
+ fi
+ return 0
+}
+
+stop_netdata_on_pid() {
+ local pid="${1}" ret=0 count=0
+
+ pidisnetdata "${pid}" || return 0
+
+ printf >&2 "Stopping netdata on pid %s ..." "${pid}"
+ while [ -n "$pid" ] && [ ${ret} -eq 0 ]; do
+ if [ ${count} -gt 24 ]; then
+ echo >&2 "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
+ echo >&2 "SORRY! CANNOT STOP netdata ON PID ${pid} !"
+ return 1
+ fi
+
+ echo >&2 "netdata on pid ${pid} stopped."
+ return 0
+}
+
+netdata_pids() {
+ local p myns ns
+
+ myns="$(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 "${p}"
+ fi
+ done
+}
+
+stop_all_netdata() {
+ local p
+
+ if [ "${UID}" -eq 0 ]; then
+ uname="$(uname 2> /dev/null)"
+
+ # Any of these may fail, but we need to not bail if they do.
+ if issystemd; then
+ if systemctl stop netdata; then
+ sleep 5
+ fi
+ elif [ "${uname}" = "Darwin" ]; then
+ if launchctl stop netdata; then
+ sleep 5
+ fi
+ elif [ "${uname}" = "FreeBSD" ]; then
+ if /etc/rc.d/netdata stop; then
+ sleep 5
+ fi
+ else
+ if service netdata stop; then
+ sleep 5
+ fi
+ fi
+ fi
+
+ if [ -n "$(netdata_pids)" ] && [ -n "$(builtin type -P netdatacli)" ]; then
+ netdatacli shutdown-agent
+ sleep 20
+ fi
+
+ for p in $(netdata_pids); do
+ # shellcheck disable=SC2086
+ stop_netdata_on_pid ${p}
+ done
+}
+
+trap quit_msg EXIT
+
+#shellcheck source=/dev/null
+source "${ENVIRONMENT_FILE}" || exit 1
+
+#### STOP NETDATA
+echo >&2 "Stopping a possibly running netdata..."
+stop_all_netdata
+
+#### REMOVE NETDATA FILES
+rm_file /etc/logrotate.d/netdata
+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 /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
+
+
+if [ -n "${NETDATA_PREFIX}" ] && [ -d "${NETDATA_PREFIX}" ]; then
+ rm_dir "${NETDATA_PREFIX}"
+else
+ rm_file "/usr/sbin/netdata"
+ rm_file "/usr/sbin/netdatacli"
+ rm_file "/tmp/netdata-ipc"
+ rm_file "/usr/sbin/netdata-claim.sh"
+ rm_dir "/usr/share/netdata"
+ rm_dir "/usr/libexec/netdata"
+ rm_dir "/var/lib/netdata"
+ rm_dir "/var/cache/netdata"
+ rm_dir "/var/log/netdata"
+ rm_dir "/etc/netdata"
+fi
+
+FILE_REMOVAL_STATUS=1
+
+#### REMOVE NETDATA USER FROM ADDED GROUPS
+if [ -n "$NETDATA_ADDED_TO_GROUPS" ]; then
+ user_input "Press ENTER to delete 'netdata' from following groups: '$NETDATA_ADDED_TO_GROUPS' > "
+ for group in $NETDATA_ADDED_TO_GROUPS; do
+ portable_del_user_from_group "${group}" "netdata"
+ done
+fi
+
+#### REMOVE USER
+user_input "Press ENTER to delete 'netdata' system user > "
+portable_del_user "netdata" || :
+
+### REMOVE GROUP
+user_input "Press ENTER to delete 'netdata' system group > "
+portable_del_group "netdata" || :
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