jul212016/docker-node-hello

Node.js Hello World app running on CentOS using docker

JavaScript

Node.js Hello World

Node.js Hello World on CentOS using docker.

Prerequisites

Node.js & npm

Getting Started

Start Ubuntu virtual machine using Vagrant (required to run docker):
```
vagrant up
```
SSH into virtual machine:
```
vagrant ssh
```
Install dependencies:
```
cd /vagrant
make install
```

Build docker image:

make build
# docker build -t gasi/centos-node-hello .

Run app:

make run-container
# docker run -p 49160:8080 -d gasi/centos-node-hello

Install curl:
```
sudo apt-get install curl
```

Get mapped port (last column) using, e.g. 49160:

docker ps

> # Example
> ID                  IMAGE                           COMMAND              CREATED             STATUS              PORTS
> ecce33b30ebf        gasi/centos-node-hello:latest   node /src/index.js   10 seconds ago      Up 9 seconds        49160->8080

Test app using the port in previous step, e.g. 49160:
```
curl localhost:<port>

# Example
# curl localhost:49163
```
It should print Hello World to the console.

If you use Boot2Docker on OS X, the port is actually mapped to the Docker host VM, and you should use the following command:
```
curl $(boot2docker ip):<port>
```

Acknowledgements

Many thanks to @shykes and @unclejack for their support on IRC as well as the @dotCloud team for docker.