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Diffstat (limited to 'packaging/installer/netdata-uninstaller.sh')
| -rwxr-xr-x | packaging/installer/netdata-uninstaller.sh | 499 |
1 files changed, 499 insertions, 0 deletions
diff --git a/packaging/installer/netdata-uninstaller.sh b/packaging/installer/netdata-uninstaller.sh new file mode 100755 index 0000000..f62934f --- /dev/null +++ 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" || : |