title: Docker + Nginx + ngx_http_image_filter_module
body: <p>Help me please in configuring <code>Nginx</code> with the <code>ngx_http_image_filter_module</code> module for <code>Docker</code>.</p>
  <p>I want to create image thumbnails with Nginx. I know that <code>ngx_http_image_filter_module</code> is needed for this. If I take a look at the <a href="https://github.com/nginxinc/docker-nginx/blob/8921999083def7ba43a06fabd5f80e4406651353/mainline/jessie/Dockerfile" rel="noreferrer">Dockerfile</a> for <a href="https://hub.docker.com/_/nginx/" rel="noreferrer">Nginx standard container</a> I can see that it is already built with <code>nginx-module-image-filter</code> (I believe it is what I need). But when I try to use <code>image_filter resize 100 100</code> in Nginx config Docker doesn't start this container and throws an error:</p>
  <blockquote>
  <p>nginx_1       | 2016/11/13 13:28:28 [emerg] 1#1: unknown directive &quot;image_filter&quot; in /etc/nginx/conf.d/nginx.conf:34</p>
  <p>nginx_1       | nginx: [emerg] unknown directive &quot;image_filter&quot; in /etc/nginx/conf.d/nginx.conf:34</p>
  </blockquote>
  <p>I have already tried building container with my own Dockerfile, but nothing changed. <strong>I used this Dockerfile:</strong></p>
  <pre><code>FROM nginx
  
  RUN apt-get update
  
  RUN apt-get install --no-install-recommends --no-install-suggests -y \
                          nginx-module-image-filter
  </code></pre>
  <p><strong>My host config</strong> (located under /etc/nginx/conf.d/)</p>
  <pre><code>server {
    listen 80;
  
    location /images/originals/ {
      alias /site/storage/app/public/images/originals/;
      image_filter resize 100 100;
    }
  }
  </code></pre>
  <h1>Update</h1>
  <p><strong>Nginx config (standard)</strong></p>
  <pre><code>user  nginx;
  worker_processes  1;
  
  error_log  /var/log/nginx/error.log warn;
  pid        /var/run/nginx.pid;
  
  
  events {
      worker_connections  1024;
  }
  
  
  http {
      include       /etc/nginx/mime.types;
      default_type  application/octet-stream;
  
      log_format  main  '$remote_addr - $remote_user [$time_local] &quot;$request&quot; '
                        '$status $body_bytes_sent &quot;$http_referer&quot; '
                        '&quot;$http_user_agent&quot; &quot;$http_x_forwarded_for&quot;';
  
      access_log  /var/log/nginx/access.log  main;
  
      sendfile        on;
      #tcp_nopush     on;
  
      keepalive_timeout  65;
  
      #gzip  on;
  
      include /etc/nginx/conf.d/*.conf;
  }
  </code></pre>
  <p>Btw, if I bash into nginx container and run <code>nginx -V</code> I get the following:</p>
  <blockquote>
  <p>root@8abdbeab3e2e:/etc/nginx/conf.d# nginx -V</p>
  <p>nginx version: nginx/1.11.5</p>
  <p>built by gcc 4.9.2 (Debian 4.9.2-10)</p>
  <p>built with OpenSSL 1.0.1t  3 May 2016</p>
  <p>TLS SNI support enabled</p>
  <p>configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -Wl,--as-needed'</p>
  </blockquote>
  <p>As we can see there's no Image filter module here.</p>
  <h1>Update 2</h1>
  <p><strong>apt-get install nginx-extras-dbg</strong></p>
  <pre><code>root@e124bcecfddc:/# apt-get install nginx-extras-dbg
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  The following extra packages will be installed:
    init-system-helpers libluajit-5.1-2 libluajit-5.1-common nginx-common nginx-extras
  Suggested packages:
    fcgiwrap nginx-doc ssl-cert
  The following NEW packages will be installed:
    init-system-helpers libluajit-5.1-2 libluajit-5.1-common nginx-common nginx-extras nginx-extras-dbg
  0 upgraded, 6 newly installed, 0 to remove and 10 not upgraded.
  Need to get 5920 kB of archives.
  After this operation, 7880 kB of additional disk space will be used.
  Do you want to continue? [Y/n] Y
  Get:1 http://security.debian.org/ jessie/updates/main nginx-common all 1.6.2-5+deb8u4 [88.1 kB]
  Get:2 http://security.debian.org/ jessie/updates/main nginx-extras amd64 1.6.2-5+deb8u4 [595 kB]
  Get:3 http://security.debian.org/ jessie/updates/main nginx-extras-dbg amd64 1.6.2-5+deb8u4 [4982 kB]
  Get:4 http://httpredir.debian.org/debian/ jessie/main libluajit-5.1-common all 2.0.3+dfsg-3 [36.6 kB]
  Get:5 http://httpredir.debian.org/debian/ jessie/main libluajit-5.1-2 amd64 2.0.3+dfsg-3 [204 kB]
  Get:6 http://httpredir.debian.org/debian/ jessie/main init-system-helpers all 1.22 [14.0 kB]
  Fetched 5920 kB in 6s (967 kB/s)
  debconf: delaying package configuration, since apt-utils is not installed
  Selecting previously unselected package libluajit-5.1-common.
  (Reading database ... 9747 files and directories currently installed.)
  Preparing to unpack .../libluajit-5.1-common_2.0.3+dfsg-3_all.deb ...
  Unpacking libluajit-5.1-common (2.0.3+dfsg-3) ...
  Selecting previously unselected package libluajit-5.1-2:amd64.
  Preparing to unpack .../libluajit-5.1-2_2.0.3+dfsg-3_amd64.deb ...
  Unpacking libluajit-5.1-2:amd64 (2.0.3+dfsg-3) ...
  Selecting previously unselected package init-system-helpers.
  Preparing to unpack .../init-system-helpers_1.22_all.deb ...
  Unpacking init-system-helpers (1.22) ...
  Selecting previously unselected package nginx-common.
  Preparing to unpack .../nginx-common_1.6.2-5+deb8u4_all.deb ...
  Unpacking nginx-common (1.6.2-5+deb8u4) ...
  dpkg: error processing archive /var/cache/apt/archives/nginx-common_1.6.2-5+deb8u4_all.deb (--unpack):
   trying to overwrite '/etc/nginx/scgi_params', which is also in package nginx 1.11.5-1~jessie
  dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
  Selecting previously unselected package nginx-extras.
  Preparing to unpack .../nginx-extras_1.6.2-5+deb8u4_amd64.deb ...
  Unpacking nginx-extras (1.6.2-5+deb8u4) ...
  dpkg: error processing archive /var/cache/apt/archives/nginx-extras_1.6.2-5+deb8u4_amd64.deb (--unpack):
   trying to overwrite '/usr/sbin/nginx', which is also in package nginx 1.11.5-1~jessie
  dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
  Selecting previously unselected package nginx-extras-dbg.
  Preparing to unpack .../nginx-extras-dbg_1.6.2-5+deb8u4_amd64.deb ...
  Unpacking nginx-extras-dbg (1.6.2-5+deb8u4) ...
  Errors were encountered while processing:
   /var/cache/apt/archives/nginx-common_1.6.2-5+deb8u4_all.deb
   /var/cache/apt/archives/nginx-extras_1.6.2-5+deb8u4_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  </code></pre>
  <p><strong>apt-get install libgd-dev</strong></p>
  <pre><code>root@e124bcecfddc:/# apt-get install libgd-dev
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  You might want to run 'apt-get -f install' to correct these:
  The following packages have unmet dependencies:
   libgd-dev : Depends: libgd3 (= 2.1.0-5+deb8u7) but 2.1.0-5+deb8u6 is to be installed
               Depends: libpng-dev
               Depends: libz-dev
               Depends: libjpeg-dev
               Depends: libfreetype6-dev but it is not going to be installed
               Depends: libxpm-dev but it is not going to be installed
               Depends: libx11-dev but it is not going to be installed
               Depends: libxt-dev but it is not going to be installed
               Depends: libfontconfig-dev
               Depends: libvpx-dev but it is not going to be installed
               Depends: libtiff-dev
   nginx-extras-dbg : Depends: nginx-extras (= 1.6.2-5+deb8u4) but it is not going to be installed
  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
  </code></pre>
  <p><strong>apt-get -f install</strong></p>
  <pre><code>root@e124bcecfddc:/# apt-get -f install
  Reading package lists... Done
  Building dependency tree
  Reading state information... Done
  Correcting dependencies... Done
  The following extra packages will be installed:
    nginx-common nginx-extras
  Suggested packages:
    fcgiwrap nginx-doc ssl-cert
  The following NEW packages will be installed:
    nginx-common nginx-extras
  0 upgraded, 2 newly installed, 0 to remove and 10 not upgraded.
  4 not fully installed or removed.
  Need to get 683 kB of archives.
  After this operation, 1812 kB of additional disk space will be used.
  Do you want to continue? [Y/n] Y
  Get:1 http://security.debian.org/ jessie/updates/main nginx-common all 1.6.2-5+deb8u4 [88.1 kB]
  Get:2 http://security.debian.org/ jessie/updates/main nginx-extras amd64 1.6.2-5+deb8u4 [595 kB]
  Fetched 683 kB in 0s (1444 kB/s)
  debconf: delaying package configuration, since apt-utils is not installed
  (Reading database ... 9786 files and directories currently installed.)
  Preparing to unpack .../nginx-common_1.6.2-5+deb8u4_all.deb ...
  Unpacking nginx-common (1.6.2-5+deb8u4) ...
  dpkg: error processing archive /var/cache/apt/archives/nginx-common_1.6.2-5+deb8u4_all.deb (--unpack):
   trying to overwrite '/etc/nginx/scgi_params', which is also in package nginx 1.11.5-1~jessie
  dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
  Preparing to unpack .../nginx-extras_1.6.2-5+deb8u4_amd64.deb ...
  Unpacking nginx-extras (1.6.2-5+deb8u4) ...
  dpkg: error processing archive /var/cache/apt/archives/nginx-extras_1.6.2-5+deb8u4_amd64.deb (--unpack):
   trying to overwrite '/usr/sbin/nginx', which is also in package nginx 1.11.5-1~jessie
  dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
  Errors were encountered while processing:
   /var/cache/apt/archives/nginx-common_1.6.2-5+deb8u4_all.deb
   /var/cache/apt/archives/nginx-extras_1.6.2-5+deb8u4_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)
  </code></pre>
  <h1>Update 3</h1>
  <p>I've cleaned up everything, deleted all images and containers and start from scratch.</p>
  <p>I use this docker-compose file for my nginx container:</p>
  <pre><code>nginx:
      image: nginx
      build:
        context: ./env/nginx
      ports:
        - '80:80'
      volumes:
        - ./env/nginx/abmotors.conf:/etc/nginx/conf.d/abmotors.conf:ro
  </code></pre>
  <p>This is the Dockerfile located at ./env/nginx (for building nginx container)</p>
  <pre><code>FROM nginx
  
  RUN apt-get update
  
  RUN apt-get install --no-install-recommends --no-install-suggests -y \
                          libgd-dev \
                          nginx-module-image-filter
  </code></pre>
  <p>Everything builds up, but when I ran and bash into nginx container and run <code>nginx -V</code> it gives me following:</p>
  <pre><code>root@7087db72bdb1:/# nginx -V
  nginx version: nginx/1.11.6
  built by gcc 4.9.2 (Debian 4.9.2-10)
  built with OpenSSL 1.0.1t  3 May 2016
  TLS SNI support enabled
  configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v2_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -Wl,--as-needed'
  </code></pre>
  <p>Still no information about libgd nor image-filter module.</p>
  <p>Thanks in advance.</p>