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Outputs a valid hostname for a given AWS instance

Project description

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aws-hostname
=============

Outputs a valid hostname for a given AWS instance

Installation
============

Using PIP via PyPI::

pip install aws-hostname

Using PIP via Github::

pip install git+git://github.com/josegonzalez/python-aws-hostname.git#egg=aws-hostname

Usage
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CLI Usage is as follows::

usage: aws-hostname [-h] [-i EC2_INSTANCE_ID] [-r EC2_REGION]
[-a AWS_ACCESS_KEY_ID] [-s AWS_SECRET_ACCESS_KEY]
[-t AWS_TAG] [-n] [-u] [-d]

You can also use the equivalent environment variables in place of command arguments.

This command will use the instance id and the tag ``aws:autoscaling:groupName`` to construct a valid hostname. It is useful for setting readable hostnames for autoscale groups like so::

aws-hostname -r $REGION -a $ACCESS_ID -s $SECRET_KEY -i $INSTANCE_ID > /etc/hostname
hostname -F /etc/hostname

You can also run it with the -u flag to connect using IAM profile instead of the access/secret key.

In cases where it is run against a non-autoscale group node, it will fallback to the ``Name`` attribute of the instance.

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