Openresty on Heroku Docker

README.md

Use the Heroku toolbelt docker plugin:

heroku docker:start

to run locally and:

heroku docker:release --app APPNAME

to release to heroku

Dockerfile

FROM heroku/cedar:14

RUN useradd -d /app -m app
USER app

ENV HOME=/app PORT=3000 \
    resty_version=1.7.10.2 rocks_version=2.1.2 \
    STDOUT_PIPE="/app/openresty/nginx/logs/access" \
    STDERR_PIPE="/app/openresty/nginx/logs/error"

# Install openresty
RUN SRCPATH="/app/src/ngx_openresty-${resty_version}" \
    && mkdir /app/src /app/bin \
    && curl -L "http://openresty.org/download/ngx_openresty-${resty_version}.tar.gz" \
    | tar -xz -C "/app/src" \
    && cd "$SRCPATH" \
    && ./configure \
    --prefix=/app/openresty \
    --with-pcre-jit \
    && make && make install \
    && rm -r "$SRCPATH"

# Install luarocks
RUN SRCPATH="/app/src/luarocks-${rocks_version}" \
    && curl -L "http://luarocks.org/releases/luarocks-${rocks_version}.tar.gz" \
    | tar -xz -C "/app/src" \
    && cd "$SRCPATH" \
    && ./configure --prefix=/app/openresty/luajit \
    --with-lua=/app/openresty/luajit/ \
    --lua-suffix=jit-2.1.0-alpha \
    --with-lua-include=/app/openresty/luajit/include/luajit-2.1 \
    && make && make install \
    && rm -r "$SRCPATH"

# Install etlua
RUN BINPATH=/app/openresty/luajit/bin \
    && cd "$BINPATH" \
    && ln -s luajit-* lua \
    && PATH=$PATH:$BINPATH ./luarocks install etlua

COPY template-nginx.lua start-openresty.bash /app/bin/
COPY ./nginx.conf /app/src/

WORKDIR /app
EXPOSE 3000

ONBUILD COPY ./nginx.conf /app/src/

nginx.conf

#user  app;
worker_processes  1;
daemon off;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
error_log  <%= os.getenv('STDERR_PIPE') %>;

#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;
    access_log  <%= os.getenv('STDOUT_PIPE') %> main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       <%= os.getenv('PORT') %>;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        }

        #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;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}

Procfile

web: /app/bin/start-openresty.bash

start-openresty.bash

#!/bin/bash

mkfifo $STDOUT_PIPE $STDERR_PIPE

cat < $STDOUT_PIPE &
cat < $STDERR_PIPE >&2 &

/app/bin/template-nginx.lua < /app/src/nginx.conf > /app/openresty/nginx/conf/nginx.conf
exec /app/openresty/nginx/sbin/nginx

template-nginx.lua

#!/app/openresty/luajit/bin/lua

-- Process templated files
--
-- stdin should be a conf file (like /app/src/nginx.conf)

local etlua = require "etlua"
print(etlua.render(io.stdin:read("*all")))