在CentOS上實現GitLab的負載均衡,通常需要以下幾個步驟:
準備多臺服務器:
配置Nginx作為反向代理:
配置Keepalived實現高可用:
假設你有兩臺服務器:gitlab-server1
和 gitlab-server2
。
在每臺服務器上安裝Nginx:
sudo yum install epel-release
sudo yum install nginx
編輯Nginx配置文件 /etc/nginx/nginx.conf
或創建一個新的配置文件 /etc/nginx/conf.d/gitlab.conf
:
upstream gitlab {
server gitlab-server1:80;
server gitlab-server2:80;
}
server {
listen 80;
server_name yourdomain.com;
location / {
proxy_pass http://gitlab;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
}
}
在每臺服務器上安裝Keepalived:
sudo yum install keepalived
編輯Keepalived配置文件 /etc/keepalived/keepalived.conf
:
vrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 51
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass your_password
}
virtual_ipaddress {
yourdomain.com
}
}
在備用服務器上,將 state
改為 BACKUP
,并將 priority
改為低于主服務器的值(例如90)。
啟動Nginx和Keepalived服務:
sudo systemctl start nginx
sudo systemctl enable nginx
sudo systemctl start keepalived
sudo systemctl enable keepalived
確保Nginx和Keepalived服務正常運行,并且VIP已經分配到主服務器上。你可以通過以下命令檢查VIP是否分配成功:
ip addr show eth0 | grep 'inet '
通過以上步驟,你可以在CentOS上實現GitLab的負載均衡和高可用性。