docker openresty

Dockerfile

# Dockerfile for openresty

FROM centos:7
MAINTAINER matt murphy
ENV http_proxy http://10.0.2.2:3128/
ENV https_proxy https://10.0.2.2:3128/

ENV PKG ngx_openresty-${openresty_version:-"1.7.10.1"}
RUN yum install -y readline-devel pcre-devel openssl-devel gcc wget perl make
RUN wget http://openresty.org/download/${PKG}.tar.gz \
    && wget http://openresty.org/download/${PKG}.tar.gz.asc \
    && gpg --keyserver pgpkeys.mit.edu --recv-key A0E98066 \
    && gpg --fingerprint A0E98066 \
    && gpg --verify ${PKG}.tar.gz.asc ${PKG}.tar.gz \
    && tar xzvf ${PKG}.tar.gz
RUN cd ${PKG} \
    && ./configure --with-pcre-jit \
            --with-ipv6 \
    && make \
    && make install

RUN rm /usr/local/openresty/nginx/conf/nginx.conf
ADD nginx.conf /usr/local/openresty/nginx/conf/nginx.conf
ADD myapp /usr/local/openresty/lualib/myapp

CMD /usr/local/openresty/nginx/sbin/nginx
EXPOSE 8080

nginx.conf

worker_processes 1;
error_log stderr notice;
daemon off;
events {
    worker_connections 1024;
}

http {
    variables_hash_max_size 1024;
    access_log off;
    include /usr/local/openresty/nginx/conf/mime.types;
    charset utf-8;
    init_by_lua '
        require "resty.core"
    ';
    resolver 8.8.8.8;
    default_type text/html;

    server {
        listen 80;
        lua_code_cache off;

        location / {
            set $proxy_to "";
            rewrite_by_lua '
              local app = require "myapp.stuff"
              local proxy_to = app.proxy_map(ngx.var.uri)
              if proxy_to == nil  then
                app.say_hi("dude")
              end
              ngx.var.proxy_to = proxy_to;
            ';
            proxy_pass $proxy_to;
        }

        location /dude/ {
          content_by_lua '
            local app = require "myapp.stuff"
            app.say_hi("dude")
         ';
        }



        location /static/ {
            alias static/;
        }
    }
}

stuff.lua

_M = {}

local proxy_map = {
  ["/google"]="http://www.google.com.au/",
  ["/cats"]="http://www.catsthemusical.com/"
}

function _M.say_hi(name)
  local hi = 'Hello ' .. name
  ngx.say(hi)
  ngx.exit(200)
end

function _M.proxy_map(path)
  return proxy_map[path]
end

return _M