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INTRO openresty는 nginx와 lua 기반의 웹개발 플랫폼이다. lua는 luajit 을 사용하고 엔진이 포함되어 있다. 서버에서 동작한다. 대부분의 리눅스 배포판은 패키지를 지원한다. 여기에서는 docker 이미지로 설치하고 사용하는 방법을 정리한다. System Info: RaspberryPi 3 Model B Rev 1.2 OS: Raspbian (Debian 11, Bullseye) Docker: version 24.0.5 Getting Started Hello World # Install Docker and Relogin after exit curl -sSL https://get.docker.com | sh sudo usermod -aG docker $usermod exit ... docker run hello-world # Docker Image get docker pull openresty/openresty:alpine # Setup mkdir ~/www cd ~/www mkdir conf html vi conf/nginx.conf ... worker_processes 1; error_log error.log; events { worker_connections 1024; } http { server { listen 8000; location / { default_type text/html; content_by_lua ' ngx.say("<p>hello world!</p>") '; } } } ... # Run openresty docker image docker run --name mresty --rm --volume `pwd`/conf/:/usr/local/openresty/nginx/conf/ \ -p 127.0.0.1:8000:8000 openresty/openresty:alpine # docker process check docker ps # openresty web server test curl localhost:8000 <p>hello world!</p> Openresty Comandline Utility # version check resty -v # Hello World resty -e 'print("Hello World")' echo 'print("Hello World")' > hello.lua resty hello.lua # resty ngx module test time resty -e 'gnx.sleep(1) ngx.say("done")' resty -e 'local sock = ngx.socket.tcp() print(socke:connect("openresty.com",443))' resty -e 'ngx.thread.wait(ngx.thread.spawn(function () print("in thread!") end))' mkdir lua/ vim lua/test.lua ... local _M = {} function _M.hello() print("Hello") end return _M ... resty -e 'require "test".hello()' # Error resty -I lua/ -e 'require "test".hello()' # Hello resty -e 'local ok, stdout = require "resty.shell".run([[echo ok]]) print(stdout)' # ok resty --shdict 'dogs 10m' -e 'print(ngx.shared.dogs:set("age",11))' # truenilfalse resty --shdict 'dogs 7m' --shdict 'cats 5m' -e 'print(ngx.shared.dogs, " ", ngx.shared.cats)' resty --http-conf 'lua_regex_match_limit 102400;' -e 'print "ok"' # Bench Test echo 'local a = 0 for 1, 1e8 do a = a+1 end print(a)' > bench.lua time resty -joff bench.lua # without Jit Compiler time resty bench.lua # with Jit Compiler (Fast) resty -jv bench.lua resty -jdump bench.lua | less # Help resty -h | less # See Help restydoc resty-cli # See Document Structure and Lua Module Create Project Folder and Modules mkdir test-module cd test-module mkdir logs conf lua vim lua/hello.lua ... local _M = {} function _M.greet(name) ngx.say("Greetings from ", name) end return _M ... Setup nginx.conf vim conf/nginx.conf ... worker_processes 1; events { worker_connections 1024; } http { # Lua module Preload for performance and Cache init_by_lua_block { require "hello" } # add module path to lua package path: $prefix means nginx -p option value lua_package_path "$prefix/lua/?.lua;;" # Server Setup: port, lua block... server { listen 8080 reuseport; location / { content_by_lua_block { local hello = require "hello" hello.greet("a Lua module") } } } } ... Server start and Test # server configuration test nginx -p $PWD/ -t # server start nginx -p $PWD/ # Chech Error Log tail logs/error.log # client request test : Browser also available curl 'http://127.0.0.1:8080' Greetins from a Lua module Server Admin # check server process ps aux | grep nginx | grep -v /tmp/ pgrep -l nginx # Edit nginx.conf vim conf/nginx.conf # Server Restart (After editting of nginx.conf) kill -HUP `cat logs/nginx.pid` # client request again curl 'http://127.0.0.1:8080' Build Develop Environment Makefile을 만들고 도커이미지를 제어하고 로그 등을 확인할 수 있는 환경을 만든다. Makefile conf/nginx.conf Test REFERENCE awesome-resty - https://github.com/bungle/awesome-resty ...