灰度发布 (一): https://www.jianshu.com/p/4b5da484d339
灰度发布 (二): https://www.jianshu.com/p/0d2e808ce8b4
最终用 nginx+lua实现 灰度发布篇:
copy docker-compose文件内容如果格式不对: 就去 https://www.bejson.com/validators/yaml/
这个 校验一下格式. 废话不多说 直接贴内容:
nginx.conf 内容:
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include 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 logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
lua_package_path "/home/?.lua;;";
#gzip on;
server {
listen 80;
server_name localhost;
default_type text/html;
#charset koi8-r;
#access_log logs/host.access.log main;
add_header Myip $remote_addr; #加个自定义头，看效果
#location / {
# root html;
# index index.html index.htm;
#}
location / {
content_by_lua_file /home/hello.lua;
}
location @old{
proxy_pass http://myjava1:8080;
}
location @new{
proxy_pass http://myjava2:8080;
}
#location / {
# proxy_set_header Host $host;
# proxy_set_header X-Real-IP $remote_addr;
# proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
# proxy_buffering off;
# proxy_pass http://$weburl;
#}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
}
hello.lua 内容:
local function close_redis(red)
if not red then
return
end
local pool_max_idle_time = 10000 --毫秒
local pool_size = 100 --连接池大小
local ok, err = red:set_keepalive(pool_max_idle_time, pool_size)
if not ok then
ngx.say("set keepalive error : ", err)
end
end
local redis = require("resty.redis")
local red = redis:new()
red:set_timeout(1000)
local ip = "192.138.0.2"
local port = 6379
local ok, err = red:connect(ip, port)
if not ok then
ngx.say("connect to redis error : ", err)
return close_redis(red)
end
local headers=ngx.req.get_headers()
local cip=headers["X-REAL-IP"] or headers["X_FORWARDED_FOR"] or ngx.var.remote_addr or "0.0.0.0"
local resp, err = red:get(cip)
if not resp then
ngx.say("get msg error : ", err)
return close_redis(red)
end
if resp == ngx.null then
resp = ''
end
close_redis(red)
if "1" == resp then
ngx.log(ngx.ERR, "resp:", 1)
ngx.exec("@new")
return
end
ngx.log(ngx.ERR, "resp !!!:", 1)
ngx.exec("@old")
docker-compose 内容:
version: '3'
services:
redis:
image: redis:3.2
container_name: redis
ports:
- 6379:6379
networks:
myjavanet:
ipv4_address: 192.138.0.2
myjava1:
image: registry.cn-hangzhou.aliyuncs.com/wuy2009123/tomcat8-1
container_name: myjava1
ports:
- 8081:8080
volumes:
- /root/tom/java-docker-compose/tomcat-users.xml:/usr/local/tomcat8/conf/tomcat-users.xml
- /root/tom/java-docker-compose/manager.xml:/usr/local/tomcat8/conf/Catalina/localhost/manager.xml
- /root/tom/java-docker-compose/index1.html:/usr/local/tomcat8/webapps/ROOT/index.html
command: ["catalina.sh","run"]
networks:
myjavanet:
myjava2:
image: registry.cn-hangzhou.aliyuncs.com/wuy2009123/tomcat8-1
container_name: myjava2
ports:
- 8082:8080
volumes:
- /root/tom/java-docker-compose/tomcat-users.xml:/usr/local/tomcat8/conf/tomcat-users.xml
- /root/tom/java-docker-compose/manager.xml:/usr/local/tomcat8/conf/Catalina/localhost/manager.xml
- /root/tom/java-docker-compose/index2.html:/usr/local/tomcat8/webapps/ROOT/index.html
command: ["catalina.sh","run"]
networks:
myjavanet:
openresty:
image: registry.cn-hangzhou.aliyuncs.com/wuy2009123/openresty-1
ports:
- 88:80
volumes:
- /root/tom/java-docker-compose/nginx.conf:/usr/local/openresty/nginx/conf/nginx.conf
- /root/tom/java-docker-compose/hello.lua:/home/hello.lua
networks:
myjavanet:
networks:
myjavanet:
driver: bridge
ipam:
config:
- subnet: 192.138.0.0/16