@@ -10,9 +10,8 @@ parent = "smn_third_party"

 # Using Supervisor with Docker

-> **Note**:

-> - **If you don't like sudo** then see [*Giving non-root

->   access*](/installation/binaries/#giving-non-root-access)

+> **Note**: **If you don't like sudo** then see [*Giving non-root

+> access*](/installation/binaries/#giving-non-root-access)

 Traditionally a Docker container runs a single process when it is

 launched, for example an Apache daemon or a SSH server daemon. Often

@@ -10,11 +10,10 @@ parent = "smn_applied"

 # Dockerizing an apt-cacher-ng service

-> **Note**: 

-> - **If you don't like sudo** then see [*Giving non-root

->   access*](/installation/binaries/#giving-non-root-access).

-> - **If you're using OS X or docker via TCP** then you shouldn't use

->   sudo.

+> **Note**: **If you don't like sudo** then see [*Giving non-root

+> access*](/installation/binaries/#giving-non-root-access).

+> **If you're using OS X or Docker via TCP** then you shouldn't use

+> sudo.

 When you have multiple Docker servers, or build unrelated Docker

 containers which can't make use of the Docker build cache, it can be

@@ -10,9 +10,8 @@ parent = "smn_applied"

 # Dockerizing a CouchDB service

-> **Note**: 

-> - **If you don't like sudo** then see [*Giving non-root

->   access*](/installation/binaries/#giving-non-root-access)

+> **Note**: **If you don't like sudo** then see [*Giving non-root

+> access*](/installation/binaries/#giving-non-root-access)

 Here's an example of using data volumes to share the same data between

 two CouchDB containers. This could be used for hot upgrades, testing

@@ -16,9 +16,7 @@ In this example, we are going to learn how to build a Docker image with

 MongoDB pre-installed.  We'll also see how to `push` that image to the

 [Docker Hub registry](https://hub.docker.com) and share it with others!

-> **Note:**

->

-> This guide will show the mechanics of building a MongoDB container, but

+> **Note:** This guide will show the mechanics of building a MongoDB container, but

 > you will probably want to use the official image on [Docker Hub]( https://registry.hub.docker.com/_/mongo/)

 Using Docker and containers for deploying [MongoDB](https://www.mongodb.org/)

@@ -148,7 +146,7 @@ as daemon process(es).

     # Dockerized MongoDB, lean and mean!

     # Usage: docker run --name <name for container> -d <user-name>/<repository> --noprealloc --smallfiles

-    $ docker run -p 27017:27017 --name mongo_instance_001 -d my/repo --noprealloc --smallfiles

+    $ docker run -p 27017:27017 --name mongo_instance_001 -d my/repo --smallfiles

     # Checking out the logs of a MongoDB container

     # Usage: docker logs <name for container>

@@ -10,14 +10,11 @@ parent = "smn_applied"

 # Dockerizing a Node.js web app

-> **Note**: 

-> - **If you don't like sudo** then see [*Giving non-root

->   access*](/installation/binaries/#giving-non-root-access)

-

-The goal of this example is to show you how you can build your own

-Docker images from a parent image using a `Dockerfile`

-. We will do that by making a simple Node.js hello world web

-application running on CentOS. You can get the full source code at

+> **Note**: **If you don't like sudo** then see [*Giving non-root

+> access*](/installation/binaries/#giving-non-root-access)

+

+In this example, we are going to learn how to build a Docker image to run a

+simple Node.js "hello world" web application on CentOS. You can get the full source code at

 [https://github.com/enokd/docker-node-hello/](https://github.com/enokd/docker-node-hello/).

 ## Create Node.js app

@@ -75,16 +72,16 @@ available on the [Docker Hub](https://hub.docker.com/):

 Since we're building a Node.js app, you'll have to install Node.js as

 well as npm on your CentOS image. Node.js is required to run your app

-and npm to install your app's dependencies defined in

+and npm is required to install your app's dependencies defined in

 `package.json`. To install the right package for

 CentOS, we'll use the instructions from the [Node.js wiki](

 https://github.com/joyent/node/wiki/Installing-Node.js-

 via-package-manager#rhelcentosscientific-linux-6):

-    # Enable EPEL for Node.js

-    RUN     rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

+    # Enable Extra Packages for Enterprise Linux (EPEL) for CentOS

+    RUN     yum install -y epel-release

     # Install Node.js and npm

-    RUN     yum install -y npm

+    RUN     yum install -y nodejs npm

 To bundle your app's source code inside the Docker image, use the `COPY`

 instruction:

@@ -97,7 +94,7 @@ Install your app dependencies using the `npm` binary:

     # Install app dependencies

     RUN cd /src; npm install

-Your app binds to port `8080` so you'll use the` EXPOSE` instruction to have

+Your app binds to port `8080` so you'll use the `EXPOSE` instruction to have

 it mapped by the `docker` daemon:

     EXPOSE  8080

@@ -112,10 +109,10 @@ Your `Dockerfile` should now look like this:

     FROM    centos:centos6

-    # Enable EPEL for Node.js

-    RUN     rpm -Uvh http://download.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm

+    # Enable Extra Packages for Enterprise Linux (EPEL) for CentOS

+    RUN     yum install -y epel-release

     # Install Node.js and npm

-    RUN     yum install -y npm

+    RUN     yum install -y nodejs npm

     # Bundle app source

     COPY . /src

@@ -10,9 +10,8 @@ parent = "smn_applied"

 # Dockerizing PostgreSQL

-> **Note**: 

-> - **If you don't like sudo** then see [*Giving non-root

->   access*](/installation/binaries/#giving-non-root-access)

+> **Note**: **If you don't like sudo** then see [*Giving non-root

+> access*](/installation/binaries/#giving-non-root-access)

 ## Installing PostgreSQL on Docker

@@ -21,7 +20,7 @@ Hub](http://hub.docker.com), you can create one yourself.

 Start by creating a new `Dockerfile`:

-> **Note**: 

+> **Note**:

 > This PostgreSQL setup is for development-only purposes. Refer to the

 > PostgreSQL documentation to fine-tune these settings so that it is

 > suitably secure.

@@ -61,7 +60,7 @@ Start by creating a new `Dockerfile`:

         createdb -O docker docker

     # Adjust PostgreSQL configuration so that remote connections to the

-    # database are possible. 

+    # database are possible.

     RUN echo "host all  all    0.0.0.0/0  md5" >> /etc/postgresql/9.3/main/pg_hba.conf

     # And add ``listen_addresses`` to ``/etc/postgresql/9.3/main/postgresql.conf``

@@ -88,7 +87,7 @@ There are 2 ways to connect to the PostgreSQL server. We can use [*Link

 Containers*](/userguide/dockerlinks), or we can access it from our host

 (or the network).

-> **Note**: 

+> **Note**:

 > The `--rm` removes the container and its image when

 > the container exits successfully.