nginx的keepalived启动脚本
时间: 2023-11-22 10:48:19 浏览: 131
以下是一个nginx的keepalived启动脚本的示例:
```bash
#!/bin/bash
#在/etc/keepalived目录下创建nginx检测脚本 check_nginx.sh
A=`ps -C nginx --no-header |wc -l`
if [ $A -eq 0 ];then
systemctl start nginx
if [ `ps -C nginx --no-header |wc -l` -eq 0 ];then
killall keepalived
fi
fi
```
该脚本会检测nginx进程是否存在,如果不存在则启动nginx,并检测nginx是否启动成功,如果启动失败则停止keepalived服务进行VIP转移。该脚本需要放在/etc/keepalived目录下,并赋予执行权限。
相关问题
docker nginx keepalived
Docker是一个开源的容器化平台,它可以帮助用户以更轻量、更快速的方式部署和运行应用程序。Nginx是一个高性能的Web服务器软件,而Keepalived是一个用于实现高可用性的软件。在引用的内容中,演示了如何使用Docker来启动Nginx容器并挂载相关的配置文件和目录,以及如何使用Keepalived来监测Nginx的状态并进行相应的操作。
首先,通过执行"Docker run"命令来启动一个名为nginx的容器,同时指定了容器的名称、挂载的目录和端口映射。这样,我们就可以在本地访问到容器中运行的Nginx服务了。
接下来,引用中的脚本"docker_check.sh"用于检测Nginx是否已经启动。如果没有启动,则会尝试重新启动Nginx,并且如果重新启动失败,则会停止Keepalived服务以进行VIP转移。
另外,引用中还给出了一个名为"nginx_check.sh"的脚本,它用于检测Nginx的运行状态。如果发现Nginx进程没有运行,则会启动Nginx,并且在再次检测Nginx状态失败时,会结束Keepalived进程。
通过以上的步骤和脚本,可以实现使用Docker启动Nginx容器,并使用Keepalived监测和管理Nginx的状态,从而实现高可用性和负载均衡的功能。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [docker-部署Keepalived实现Nginx高可用](https://blog.csdn.net/W_Meng_H/article/details/127297084)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *3* [docker+nginx+keepalived](https://blog.csdn.net/qq_45576674/article/details/131192233)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]
nginx keepalived搭建
要搭建nginx和keepalived,可以按照以下步骤进行操作:
1. 首先,安装nginx。在主服务器和备份服务器上都需要安装nginx。可以通过YUM安装或者手动编译安装。如果选择手动编译安装,可以按照以下步骤进行操作:
- 下载nginx安装包并解压缩:
```
cd /tools/
ls nginx-1.12.0.tar.gz
tar -zxf nginxnx-1.12.0.tar.gz
cd nginxnx-1.12.0
```
- 配置并安装nginx:
```
./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_stub_status_module --with-http_ssl_module
make && make install
```
- 添加nginx用户并启动nginx:
```
useradd www
/usr/local/nginx/sbin/nginx
```
2. 接下来,安装keepalived。keepalived用于实现高可用性,将主服务器和备份服务器配置为虚拟IP地址。可以通过以下步骤安装keepalived:
- 创建check_nginx.sh脚本并设置执行权限:
```
#!/bin/bash
counter=$(ps -C nginx --no-heading|wc -l)
if [ "${counter}" = "0" ]; then
/usr/local/nginx/sbin/nginx
sleep 2
counter=$(ps -C nginx --no-heading|wc -l)
if [ "${counter}" = "0" ]; then
systemctl stop keepalived
fi
fi
```
- 配置keepalived的主服务器(192.168.92.100)上的配置文件:
```
Configuration File for keepalived
global_defs {
router_id Nginx_01
}
vrrp_script check_nginx {
script "/etc/keepalived/check_nginx.sh"
interval 2
weight -5
fall 3
rise 2
}
vrrp_instance VI_1 {
state MASTER
interface ens33
virtual_router_id 51
priority 150
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
192.168.92.200
}
track_script {
check_nginx
}
}
```
- 在备份服务器上配置keepalived的配置文件,与主服务器配置文件相似,只需将state设置为BACKUP。
- 启动keepalived服务:`systemctl start keepalived`
通过以上步骤,您可以搭建nginx和keepalived来实现高可用性,当nginx服务出现故障时,keepalived会将虚拟IP地址迁移到备份服务器上,确保服务的持续可用性。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [搭建keepalived+nginx热备高可用(主备+双主模式)](https://blog.csdn.net/qq_38055805/article/details/127916599)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [Keepalived+Nginx搭建](https://blog.csdn.net/qq_44777969/article/details/107436999)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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