Merging upstream version 1.12.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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 || :