首先安装docker-compose，我觉得用起来比较方便。
curl -L https://github.com/docker/compose/releases/download/1.24.1/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
然后可以在一个你喜欢的目录下，创建docker-compose.yml文件。我是在/use/local/docker/nginx/下创建的。
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docker-compose.yml
version: '3.1' services: nginx: restart: always image: nginx container_name: nginx ports: - 81:80 volumes: - ./conf/nginx.conf:/etc/nginx/nginx.conf - ./wwwroot:/usr/share/nginx/wwwroot注：在创建./conf 目录下创建nginx.conf文件，在./wwwroot下创建 html80文件夹
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nginx.conf配置内容
a. 基于端口的虚拟主机
worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; # 配置虚拟主机 192.168.75.145 server { # 监听的ip和端口，配置 192.168.75.145:80 listen 80; # 虚拟主机名称这里配置ip地址 server_name 192.168.75.145; # 所有的请求都以 / 开始，所有的请求都可以匹配此 location location / { # 使用 root 指令指定虚拟主机目录即网页存放目录 # 比如访问 http://ip/index.html 将找到 /usr/local/docker/nginx/wwwroot/html80/index.html # 比如访问 http://ip/item/index.html 将找到 /usr/local/docker/nginx/wwwroot/html80/item/index.html root /usr/share/nginx/wwwroot/html80; # 指定欢迎页面，按从左到右顺序查找 index index.html index.htm; } } # 配置虚拟主机 192.168.75.245 server { listen 8080; server_name 192.168.75.145; location / { root /usr/share/nginx/wwwroot/html8080; index index.html index.htm; } } }
b. 基于域名的虚拟主机
user nginx;
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
server {
listen 80;
server_name admin.service.itoken.funtl.com;
location / {
root /usr/share/nginx/wwwroot/htmlservice;
index index.html index.htm;
}
}
server {
listen 80;
server_name admin.web.itoken.funtl.com;
location / {
root /usr/share/nginx/wwwroot/htmlweb;
index index.html index.htm;
}
}
}
c. 反向代理
user nginx;
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
# 配置一个代理即 tomcat1 服务器
upstream tomcatServer1 {
server 192.168.75.145:9090;
}
# 配置一个代理即 tomcat2 服务器
upstream tomcatServer2 {
server 192.168.75.145:9091;
}
# 配置一个虚拟主机
server {
listen 80;
server_name admin.service.itoken.funtl.com;
location / {
# 域名 admin.service.itoken.funtl.com 的请求全部转发到 tomcat_server1 即 tomcat1 服务上
proxy_pass http://tomcatServer1;
# 欢迎页面，按照从左到右的顺序查找页面
index index.jsp index.html index.htm;
}
}
server {
listen 80;
server_name admin.web.itoken.funtl.com;
location / {
# 域名 admin.web.itoken.funtl.com 的请求全部转发到 tomcat_server2 即 tomcat2 服务上
proxy_pass http://tomcatServer2;
index index.jsp index.html index.htm;
}
}
}
注意：新版 Nginx 的 upstream 配置中的名称不可以有下划线("_")，否则会报 400 错误
d.负载均衡
user nginx;
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream myapp1 {
server 192.168.75.145:9090 weight=10;
server 192.168.75.145:9091 weight=10;
}
server {
listen 80;
server_name nginx.funtl.com;
location / {
proxy_pass http://myapp1;
index index.jsp index.html index.htm;
}
}
}
相关配置说明：
# 定义负载均衡设备的 Ip及设备状态
upstream myServer {
server 127.0.0.1:9090 down;
server 127.0.0.1:8080 weight=2;
server 127.0.0.1:6060;
server 127.0.0.1:7070 backup;
}
-
upstream：每个设备的状态: -
down：表示当前的server暂时不参与负载 -
weight：默认为 1weight越大，负载的权重就越大。 -
max_fails：允许请求失败的次数默认为 1 当超过最大次数时，返回proxy_next_upstream模块定义的错误 -
fail_timeout:max_fails次失败后，暂停的时间。 -
backup：其它所有的非backup机器down或者忙的时候，请求backup机器。所以这台机器压力会最轻
