Update nodejs_web_app.md
The image centos:centos6.4 doesn't exist. Instead you have to choose between the official centos6 or centos7. Both images does not work together with de yum npm install. When choosing an centos6.5 from another distributor (tutum) it works.
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@ -69,7 +69,7 @@ top of. Here, we'll use
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[CentOS](https://registry.hub.docker.com/_/centos/) (tag: `6.4`)
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available on the [Docker Hub](https://hub.docker.com/):
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FROM centos:6.4
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FROM tutum/centos-6.4
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Since we're building a Node.js app, you'll have to install Node.js as
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well as npm on your CentOS image. Node.js is required to run your app
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@ -109,7 +109,7 @@ defines your runtime, i.e. `node`, and the path to our app, i.e. `src/index.js`
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Your `Dockerfile` should now look like this:
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# DOCKER-VERSION 0.3.4
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FROM centos:6.4
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FROM tutum/centos-6.4
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# Enable EPEL for Node.js
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RUN rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
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@ -137,9 +137,9 @@ Your image will now be listed by Docker:
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$ sudo docker images
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# Example
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REPOSITORY TAG ID CREATED
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centos 6.4 539c0211cd76 8 weeks ago
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<your username>/centos-node-hello latest d64d3505b0d2 2 hours ago
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REPOSITORY TAG ID CREATED
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tutum centos-6.4 539c0211cd76 8 weeks ago
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<your username>/centos-node-hello latest d64d3505b0d2 2 hours ago
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## Run the image
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