diff options
Diffstat (limited to 'packaging/installer/netdata-uninstaller.sh')
| -rwxr-xr-x | packaging/installer/netdata-uninstaller.sh | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/packaging/installer/netdata-uninstaller.sh b/packaging/installer/netdata-uninstaller.sh new file mode 100755 index 00000000..96dd6290 --- /dev/null +++ b/packaging/installer/netdata-uninstaller.sh @@ -0,0 +1,169 @@ +#!/usr/bin/env bash +#shellcheck disable=SC2181 + +# this script will uninstall netdata + +# Variables needed by script and taken from '.environment' file: +# - NETDATA_PREFIX +# - NETDATA_ADDED_TO_GROUPS + +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 "This script will REMOVE netdata from your system." + echo "Run it again with --yes to do it." + exit 1 +fi + +if [[ $EUID -ne 0 ]]; then + echo "This script SHOULD be run as root or otherwise it won't delete all installed components." + key="n" + read -r -s -n 1 -p "Do you want to continue as non-root user [y/n] ? " key + if [ "$key" != "y" ] && [ "$key" != "Y" ]; then + exit 1 + fi +fi + +function quit_msg() { + echo + if [ "$FILE_REMOVAL_STATUS" -eq 0 ]; then + echo "Something went wrong :(" + else + echo "Netdata files were successfully removed from your system" + fi +} + +function user_input() { + TEXT="$1" + if [ "${INTERACTIVITY}" == "-i" ]; then + read -r -p "$TEXT" >&2 + fi +} + +function rm_file() { + FILE="$1" + if [ -f "${FILE}" ]; then + rm -v ${INTERACTIVITY} "${FILE}" + fi +} + +function rm_dir() { + DIR="$1" + if [ -n "$DIR" ] && [ -d "$DIR" ]; then + user_input "Press ENTER to recursively delete directory '$DIR' > " + rm -v -f -R "${DIR}" + fi +} + +netdata_pids() { + local p myns ns + myns="$(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) \ + $(pidof netdata 2>/dev/null); do + + ns="$(readlink "/proc/${p}/ns/pid" 2>/dev/null)" + #shellcheck disable=SC2002 + if [ -z "${myns}" ] || [ -z "${ns}" ] || [ "${myns}" = "${ns}" ]; then + name="$(cat "/proc/${p}/stat" 2>/dev/null | cut -d '(' -f 2 | cut -d ')' -f 1)" + if [ "${name}" = "netdata" ]; then + echo "${p}" + fi + fi + done +} + +trap quit_msg EXIT + +#shellcheck source=/dev/null +source "${ENVIRONMENT_FILE}" || exit 1 + +#### STOP NETDATA +echo "Stopping a possibly running netdata..." +for p in $(netdata_pids); do + i=0 + while kill "${p}" 2>/dev/null; do + if [ "$i" -gt 30 ]; then + echo "Forcefully stopping netdata with pid ${p}" + kill -9 "${p}" + sleep 2 + break + fi + sleep 1 + i=$((i + 1)) + done +done +sleep 2 + +#### REMOVE NETDATA FILES +rm_file /etc/logrotate.d/netdata +rm_file /etc/systemd/system/netdata.service +rm_file /lib/systemd/system/netdata.service +rm_file /usr/lib/systemd/system/netdata.service +rm_file /etc/init.d/netdata +rm_file /etc/periodic/daily/netdata-updater +rm_file /etc/cron.daily/netdata-updater + +if [ -n "${NETDATA_PREFIX}" ] && [ -d "${NETDATA_PREFIX}" ]; then + rm_dir "${NETDATA_PREFIX}" +else + rm_file "/usr/sbin/netdata" + 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 & GROUP +if [ -n "$NETDATA_ADDED_TO_GROUPS" ]; then + user_input "Press ENTER to delete 'netdata' from following groups: '$NETDATA_ADDED_TO_GROUPS' > " + for group in $NETDATA_ADDED_TO_GROUPS; do + gpasswd -d netdata "${group}" + done +fi + +user_input "Press ENTER to delete 'netdata' system user > " +userdel -f netdata || : +user_input "Press ENTER to delete 'netdata' system group > " +groupdel -f netdata || : |