New function assertVarsNotEmpty()

lib/functions.sh

@@ -80,6 +80,23 @@ fetchVarsFromVaultByFile() {
 	return 0
 }
 
+assertVarsNotEmpty() {
+	MISSING_VARS=""
+
+	for VAR in $@; do
+	if [ -z "${!VAR}" ]; then
+			MISSING_VARS+="$VAR "
+		fi
+	done
+
+	if [ -n "$MISSING_VARS" ]; then
+		log "ERROR" "Mandatory variables not defined: $MISSING_VARS"
+		return 1
+	fi
+
+	return 0
+}
+
 ##Setting Network properties
 export HOSTIP=$(MSYS_NO_PATHCONV=1 docker run --rm --add-host=host.docker.internal:host-gateway ubuntu cat /etc/hosts | grep 'host.docker.internal' | awk '{print $1}');
 export HOST=$(hostname)