Dockerfile

FROM heroku/cedar:14

RUN mkdir -p /app/user /app/.heroku/nginx/conf /app/.heroku/nginx/logs /app/.heroku/nginx/sbin /app/.heroku/nginx/run
RUN curl --silent --location https://github.com/ngs/heroku-docker-nginx/raw/master/nginx.tar.gz | tar xz -C /app/.heroku/nginx/sbin

RUN echo 'daemon off;\n\
error_log stderr info;\n\
worker_processes auto;\n\
pid /app/.heroku/nginx/run/nginx.pid;\n\
\n\
events {\n\
  worker_connections 768;\n\
}\n\
\n\
http {\n\
  sendfile on;\n\
  tcp_nopush on;\n\
  tcp_nodelay on;\n\
  keepalive_timeout 65;\n\
  types_hash_max_size 2048;\n\
  types {\n\
      text/html                             html htm shtml;\n\
      text/css                              css;\n\
      text/xml                              xml;\n\
      image/gif                             gif;\n\
      image/jpeg                            jpeg jpg;\n\
      application/javascript                js;\n\
      application/atom+xml                  atom;\n\
      application/rss+xml                   rss;\n\
\n\
      text/mathml                           mml;\n\
      text/plain                            txt;\n\
      text/vnd.sun.j2me.app-descriptor      jad;\n\
      text/vnd.wap.wml                      wml;\n\
      text/x-component                      htc;\n\
\n\
      image/png                             png;\n\
      image/tiff                            tif tiff;\n\
      image/vnd.wap.wbmp                    wbmp;\n\
      image/x-icon                          ico;\n\
      image/x-jng                           jng;\n\
      image/x-ms-bmp                        bmp;\n\
      image/svg+xml                         svg svgz;\n\
      image/webp                            webp;\n\
\n\
      application/font-woff                 woff;\n\
      application/java-archive              jar war ear;\n\
      application/json                      json;\n\
      application/mac-binhex40              hqx;\n\
      application/msword                    doc;\n\
      application/pdf                       pdf;\n\
      application/postscript                ps eps ai;\n\
      application/rtf                       rtf;\n\
      application/vnd.apple.mpegurl         m3u8;\n\
      application/vnd.ms-excel              xls;\n\
      application/vnd.ms-fontobject         eot;\n\
      application/vnd.ms-powerpoint         ppt;\n\
      application/vnd.wap.wmlc              wmlc;\n\
      application/vnd.google-earth.kml+xml  kml;\n\
      application/vnd.google-earth.kmz      kmz;\n\
      application/x-7z-compressed           7z;\n\
      application/x-cocoa                   cco;\n\
      application/x-java-archive-diff       jardiff;\n\
      application/x-java-jnlp-file          jnlp;\n\
      application/x-makeself                run;\n\
      application/x-perl                    pl pm;\n\
      application/x-pilot                   prc pdb;\n\
      application/x-rar-compressed          rar;\n\
      application/x-redhat-package-manager  rpm;\n\
      application/x-sea                     sea;\n\
      application/x-shockwave-flash         swf;\n\
      application/x-stuffit                 sit;\n\
      application/x-tcl                     tcl tk;\n\
      application/x-x509-ca-cert            der pem crt;\n\
      application/x-xpinstall               xpi;\n\
      application/xhtml+xml                 xhtml;\n\
      application/xspf+xml                  xspf;\n\
      application/zip                       zip;\n\
\n\
      application/octet-stream              bin exe dll;\n\
      application/octet-stream              deb;\n\
      application/octet-stream              dmg;\n\
      application/octet-stream              iso img;\n\
      application/octet-stream              msi msp msm;\n\
\n\
      application/vnd.openxmlformats-officedocument.wordprocessingml.document    docx;\n\
      application/vnd.openxmlformats-officedocument.spreadsheetml.sheet          xlsx;\n\
      application/vnd.openxmlformats-officedocument.presentationml.presentation  pptx;\n\
\n\
      audio/midi                            mid midi kar;\n\
      audio/mpeg                            mp3;\n\
      audio/ogg                             ogg;\n\
      audio/x-m4a                           m4a;\n\
      audio/x-realaudio                     ra;\n\
\n\
      video/3gpp                            3gpp 3gp;\n\
      video/mp2t                            ts;\n\
      video/mp4                             mp4;\n\
      video/mpeg                            mpeg mpg;\n\
      video/quicktime                       mov;\n\
      video/webm                            webm;\n\
      video/x-flv                           flv;\n\
      video/x-m4v                           m4v;\n\
      video/x-mng                           mng;\n\
      video/x-ms-asf                        asx asf;\n\
      video/x-ms-wmv                        wmv;\n\
      video/x-msvideo                       avi;\n\
  }\n\
\n\
  default_type application/octet-stream;\n\
\n\
  gzip on;\n\
  gzip_disable "msie6";\n\
\n\
  access_log stdout;\n\
\n\
  server {\n\
    listen 8080 default_server;\n\
\n\
    root /app/user/www;\n\
    server_name _;\n\
\n\
    location / {\n\
      try_files $uri $uri/ =404;\n\
    }\n\
  }\n\
}\n' > /app/.heroku/nginx/conf/nginx.conf

WORKDIR /app/user
ONBUILD ADD . /app/user
ONBUILD RUN echo '#!/bin/sh\n\
\n\
PORT="${PORT:-8080}"\n\
/bin/sed -i.bk "s/listen 8080/listen ${PORT}/" /app/.heroku/nginx/conf/nginx.conf\n\
/app/.heroku/nginx/sbin/nginx' > /app/user/nginx-start.sh && chmod +x /app/user/nginx-start.sh