commit b242f91dab291935677710fb1594fdfee5fdfba9
from: mischa <mischa@rx.high5.nl>
date: Fri Jan 03 11:34:05 2020 UTC

add remove script

commit - afac5c8d3cf7812dda4920f73a4dd98a3bce8da4
commit + b242f91dab291935677710fb1594fdfee5fdfba9
blob - /dev/null
blob + 9b6e30f97496a901a3b2a1b049e21b758018eea4 (mode 755)
--- /dev/null
+++ remove.sh
@@ -0,0 +1,88 @@
+main () {
+	CONF_FILE="$PWD/_deploy.conf"
+	[ -f "$CONF_FILE" ] && . "$CONF_FILE"
+
+	file=${VMS}/$1
+
+	if [ -f "$file" ]; then
+		echo "reading $file"
+		. "$file"
+		backup_image "$file"
+		remove_user "$file"
+		move_file "$file"
+	else
+		echo "ERROR file doesn't exist: ${file}"
+	fi
+}
+
+check_instance() {
+	# Check if the instance name exists, otherwise return filename as VM.
+	# Takes vm*.txt and instance
+	# prints either filename or instance variable
+	if test -z "$2"
+	then echo "$1" | sed "s@^$VMS@@;s@^/@@;s/\\.txt$//"
+	else echo "$2"
+	fi
+}       
+
+check_owner() {
+	# Check if the owner name exists, otherwise returns username.
+	# Takes username and owner
+	# prints either owner or username
+	if test -z "$2"
+	then echo "$1"
+	else echo "$2"
+	fi
+}       
+
+check_format() {
+	# Check if the image format exists, otherwise returns img.
+	# Takes format
+	# prints either format or img
+	if test -z "$1"
+	then echo "${FORMAT}"
+	else echo "$1"
+	fi
+}       
+
+backup_image() {
+	filename=$1
+	_instance=$(check_instance "$filename" "$instance")
+	_format=$(check_format "$format")
+	if [ -f "${IMAGES}/${_instance}.${_format}" ]; then
+		mv ${IMAGES}/${_instance}.${_format} ${IMAGES}/${_instance}.${_format}-backup
+		echo "vmm(4)/vmd(8) files moved: ${IMAGES}/${_instance}.${_format} ${IMAGES}/${_instance}.${_format}-backup"
+	else
+		echo "ERROR vmm(4)/vmd(8) files moved: ${IMAGES}/${_instance}.${_format} doesn't exist"
+	fi
+}
+
+remove_user() {
+	_owner=$(check_owner "$username" "$owner")
+	if [ -n "$_owner" ]; then
+		if grep -e "^${_owner}:" /etc/passwd > /dev/null; then
+			userdel -r "$_owner"
+			echo "userdel(8) removal: $_owner"
+		else
+			echo "ERROR userdel(8) removal: $_owner doesn't exist"
+		fi
+
+		if grep -e "^${_owner}:" /etc/group > /dev/null; then
+			groupdel "$_owner"
+			echo "groupdel(8) removal: $_owner"
+		else
+			echo "ERROR groupdel(8) removal: $_owner doesn't exist"
+		fi
+	fi
+}
+
+move_file() {
+	filename=$1
+	cp ${filename} ${filename}-backup
+	echo "cp(1): ${filename} ${filename}-backup"
+	mv ${filename} ${filename}.free
+	echo "mv(1): ${filename} ${filename}.free"
+
+}
+
+main "$@"