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-rwxr-xr-xpackaging/installer/netdata-uninstaller.sh169
1 files changed, 169 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 +1,169 @@
+#!/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 || :