title: Command docker run create empty container
body: <p>Command <code>docker run</code> create empty container. I mean that docker image builds successfully but when I run container there is no my changes. I am working on ubuntu 16.04 with vagrant. My docker file:</p>
  
  <pre><code>FROM node:6.2.0-wheezy
  
  MAINTAINER Lukasz Migut
  
  RUN mkdir -p /app
  
  ADD package.json /app/package.json
  
  RUN cd /app/ &amp;&amp; \
  npm cache clear &amp;&amp; \
  npm install --no-bin-links --quiet
  
  RUN mkdir -p /var/www/backend
  
  WORKDIR /var/www/backend
  
  COPY entrypoint.sh /entrypoint.sh
  
  CMD ["/bin/bash", "/entrypoint.sh"]
  
  EXPOSE 8080
  </code></pre>
  
  <p>This is output after <code>docker build .</code></p>
  
  <pre><code>Sending build context to Docker daemon 6.144 kB
  Step 1 : FROM node:6.2.0-wheezy
  6.2.0-wheezy: Pulling from library/node
  47994b92ab73: Already exists 
  a3ed95caeb02: Already exists 
  9b7b75987c3c: Already exists 
  d66c4af59bfb: Already exists 
  26df7d6a7371: Already exists 
  b656b9b4e7eb: Already exists 
  e3753c84bc68: Already exists 
  Digest:       sha256:9a04df0cd52487e2fb6d6316890380780209f9211f4767934c5f80f2da83a6bf
  Status: Downloaded newer image for node:6.2.0-wheezy
  ---&gt; ecbd08787958
  Step 2 : MAINTAINER Lukasz Migut
  ---&gt; Running in 2a1d31015aea
  ---&gt; 6d6ff7769ec5
  Removing intermediate container 2a1d31015aea
  Step 3 : ADD package.json /app/package.json
  ---&gt; 5a28cc87577c
  Removing intermediate container 3df429908e6c
  Step 4 : RUN cd /app/ &amp;&amp;     npm cache clear &amp;&amp;     npm install --no-    bin-links --quiet
  ---&gt; Running in 1fc442eb449a
  npm info it worked if it ends with ok
  npm info using npm@3.8.9
  npm info using node@v6.2.0
  npm info ok 
  blog-backend@0.0.1 /app
  `-- hapi@13.4.1 
  +-- accept@2.1.1 
  +-- ammo@2.0.1 
  +-- boom@3.2.0 
  +-- call@3.0.1 
  +-- catbox@7.1.1 
  +-- catbox-memory@2.0.2 
  +-- cryptiles@3.0.1 
  +-- heavy@4.0.1 
  +-- hoek@4.0.0 
  +-- iron@4.0.1 
  +-- items@2.1.0 
  +-- joi@8.1.0 
  | +-- isemail@2.1.2 
  | `-- moment@2.13.0 
  +-- kilt@2.0.1 
  +-- mimos@3.0.1 
  | `-- mime-db@1.23.0 
  +-- peekaboo@2.0.1 
  +-- shot@3.0.1 
  +-- statehood@4.0.1 
  +-- subtext@4.0.3 
  | +-- content@3.0.1 
  | +-- pez@2.1.1 
  | | +-- b64@3.0.1 
  | | `-- nigel@2.0.1 
  | |   `-- vise@2.0.1 
  | `-- wreck@7.2.1 
  `-- topo@2.0.1 
  
  ---&gt; ad5bf17db156
  Removing intermediate container 1fc442eb449a
  Step 5 : WORKDIR /var/www/backend
  ---&gt; Running in 3f75e64f3880
  ---&gt; 477162d999c0
  Removing intermediate container 3f75e64f3880
  Step 6 : COPY entrypoint.sh /entrypoint.sh
  ---&gt; b0918e5611e2
  Removing intermediate container b1c46f9175dd
  Step 7 : CMD /bin/bash /entrypoint.sh
  ---&gt; Running in fd2c72465c11
  ---&gt; 275911ac22ca
  Removing intermediate container fd2c72465c11
  Step 8 : EXPOSE 8080
  ---&gt; Running in d54c25afb6a1
  ---&gt; f4ba799427cc
  Removing intermediate container d54c25afb6a1
  Successfully built f4ba799427cc
  </code></pre>
  
  <p>Command <code>docker images</code></p>
  
  <pre><code>REPOSITORY          TAG                 IMAGE ID            CREATED               SIZE
  &lt;none&gt;              &lt;none&gt;              f4ba799427cc        28 minutes  ago      514.2 MB
  node                6.2.0-wheezy        ecbd08787958        8 days ago           503.9 MB
  </code></pre>
  
  <p>Next i try to run container with <code>docker run -it node:6.2.0-wheezy /bin/bash
  </code>
  and when i login on container i can't see for example created folders form  Dockerfile and no node_modules.</p>
  
  <p>What i do wrong, why i can't see changes?</p>