# 創建掛載路徑
mkdir /data/nginx_keep/nginx/conf -p
mkdir /data/nginx_keep/keepalived/vim nginx.conf
user  nginx;
worker_processes  auto;error_log  /var/log/nginx/error.log notice;
pid        /var/run/nginx.pid;events {worker_connections  1024;
}http {include       /etc/nginx/mime.types;default_type  application/octet-stream;log_format  main  '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';access_log  /var/log/nginx/access.log  main;sendfile        on;#tcp_nopush     on;keepalive_timeout  65;#gzip  on;include /etc/nginx/conf.d/*.conf;upstream clickhouse {server 192.168.88.171:8123 weight=1;server 192.168.88.172:8123 weight=1;#server 192.168.88.173:8123 weight=1;ip_hash;}server {listen       8124;server_name  localhost;location / {proxy_pass http://clickhouse;}error_page   500 502 503 504  /50x.html;}
}

啟動nginx

# 準備nginx配置文件# 主機1
docker run -d -p 8124:8124 --name nginx-master \
-v /data/nginx_keep/nginx/conf/nginx.conf:/etc/nginx/nginx.conf \
-v /data/nginx_keep/nginx/logs:/var/log/nginx \
nginx:latest# 主機2
docker run -d -p 8124:8124 --name nginx-backup \
-v /data/nginx_keep/nginx/conf/nginx.conf:/etc/nginx/nginx.conf \
-v /data/nginx_keep/nginx/logs:/var/log/nginx \
nginx:latest

keepalived配置文件

# master
! Configuration File for keepalivedglobal_defs {router_id Ck_Master
}
# 檢測腳本
#vrrp_script chk_nginx {
#       script "/etc/keepalived/nginx_check.sh"
#       interval 2
#       weight -20
#}vrrp_instance VI_1 {state MASTERinterface ens33virtual_router_id 133mcast_src_ip 192.168.88.171priority 100nopreemptadvert_int 1## 設置驗證信息，兩個節點必須一致authentication {auth_type PASSauth_pass 1111}## 將 track_script 塊加入 instance 配置塊
#       track_script {
#               chk_nginx
#       }# 虛擬 IP 池, 兩個節點設置必須一樣virtual_ipaddress {192.168.88.100}
}
-------------------------------------------------------------------------
# backup
! Configuration File for keepalivedglobal_defs {router_id Ck_BACKUP
}
#vrrp_script chk_nginx {
#       script "/etc/keepalived/nginx_check.sh"
#       interval 2
#       weight -20
#}vrrp_instance VI_1 {state BACKUPinterface ens33virtual_router_id 133mcast_src_ip 192.168.88.172priority 90nopreemptadvert_int 1## 設置驗證信息，兩個節點必須一致authentication {auth_type PASSauth_pass 1111}## 將 track_script 塊加入 instance 配置塊
#       track_script {
#               chk_nginx
#       }# 虛擬 IP 池, 兩個節點設置必須一樣virtual_ipaddress {192.168.88.100}
}

啟動keepalived

# 主機1
docker run -it --name keepalived_master \
--net=host --cap-add NET_ADMIN \
-v /data/nginx_keep/keepalived/keepalived.conf:/etc/keepalived/keepalived.conf \
-d fxyfdf/keepalived:2.0.8# 主機2
docker run -it --name keepalived_backup \
--net=host --cap-add NET_ADMIN \
-v /data/nginx_keep/keepalived/keepalived.conf:/etc/keepalived/keepalived.conf \
-d fxyfdf/keepalived:2.0.8

查看vip

ip a |grep 192.168.88.100