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Project Description
# ec2ansible: EC2 inventory generator for Ansible

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`ec2ansible` is a cli tool written in Python (2.7+) for generating realtime AWS EC2 inventory for [Ansible](http://docs.ansible.com/)

There is an [official script](http://docs.ansible.com/intro_dynamic_inventory.html#example-aws-ec2-external-inventory-script) doing the similar thing. But usually when we are provisioning a server, we only care about its **role**, eg. web server, database server, proxy server, etc, instead of its availability zone, AMI ID, nor instance type. `ec2ansible` groups your EC2 servers into Ansible inventory hierarchically based on the `Role` tag associated with them.

## Use Case
Asumming we have two main types of servers in the us-east-1 region: web servers and worker servers. And we have totally 5 servers as follow:
- Apache
- Nginx reverse proxy
- HAProxy reverse proxy
- Gearman worker
- Celery worker

Firstly we will add a `Role` tag for each of them with the following values:
- web_apache
- web_proxy_nginx
- web_proxy_haproxy
- worker_gearman
- worker_celery

Here is a sample grouping generated by `ec2ansible`:

```
use1 (us-east-1)
└─── web
│ web_apache
└─── web_proxy
│ web_proxy_nginx
│ web_proxy_haproxy
└─── worker
│ worker_gearman
│ worker_celery
```

## Installation
`ec2ansible` is available via [pypi](https://pypi.python.org/pypi/ec2ansible) and can be installed with easy_install or [pip](https://pip.pypa.io/en/latest/index.html):
```bash
pip install ec2ansible
```

## Usage
1. Save [ec2ansible-sample.ini](/hehachris/ec2ansible/blob/master/ec2ansible-sample.ini) to `~/.ec2ansible` and modify it if needed
2. Specify `/usr/local/bin/ec2ansible` as the inventory for Ansible

```bash
ansible web_apache -i /usr/local/bin/ec2ansible -u ec2-user -m ping
```
or set in `ansible.cfg`
```
hostfile = /usr/local/bin/ec2ansible
```
Release History

Release History

0.1.2

This version

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0.1.1

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0.1

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TODO: Figure out how to actually get changelog content.

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Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ec2ansible-0.1.2.tar.gz (5.3 kB) Copy SHA256 Checksum SHA256 Source May 1, 2015

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