| #!/bin/bash |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you under the Apache License, Version 2.0 (the |
| # "License"); you may not use this file except in compliance |
| # with the License. You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, |
| # software distributed under the License is distributed on an |
| # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| # KIND, either express or implied. See the License for the |
| # specific language governing permissions and limitations |
| # under the License. |
| |
| |
| ret=0 |
| |
| new_config=$1 |
| |
| # save previous state |
| mv /etc/haproxy/haproxy.cfg /etc/haproxy/haproxy.cfg.old |
| |
| mv $new_config /etc/haproxy/haproxy.cfg |
| if haproxy -p /var/run/haproxy.pid -f /etc/haproxy/haproxy.cfg -sf $(cat /var/run/haproxy.pid); then |
| logger -t cloud "New haproxy instance successfully loaded, stopping previous one." |
| ret=0 |
| else |
| logger -t cloud "New instance failed to start, resuming previous one." |
| mv /etc/haproxy/haproxy.cfg $new_config |
| mv /etc/haproxy/haproxy.cfg.old /etc/haproxy/haproxy.cfg |
| haproxy -p /var/run/haproxy.pid -f /etc/haproxy/haproxy.cfg -sf $(cat /var/run/haproxy.pid) |
| ret=1 |
| fi |
| |
| exit $ret |