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Nephele

Nephele is a thin administration layer around major cloud service API's. Its main goals are simplicity and a unified command line interface for common tasks.

Planned support

  • Rackspace
  • EC2

Setting Your Credentials

Currently, Nephele expects environment variables to set your service keys.

RACKSPACE_KEY=your_api_key
RACKSPACE_USER=your_user_name
NEPHELE_SERVICE_DEFAULT=rackspace

Examples

Here's an example of someone inspecting available images and flavors on a Rackspace account, deciding to create and save various 'foo' images based on roles and recipes from joeuser's chef git repo:

neph images | grep lucid

neph flavors | grep 512

neph create foo 'Ubuntu 10.04 LTS (lucid)' '512 server'

neph destroy foo

neph bootstrap foo 'Ubuntu 10.04 LTS (lucid)' '512 server' -r webserver -c git@github.com:joeuser/cookbooks.git

neph save foo lucid-webserver

neph restrap foo lucid-webserver '512 server' -r webserver-prod -c git@github.com:joeuser/cookbooks.git

neph save foo 'lucid-webserver-prod'

neph destroy foo

Usage

Example usage at time of writing:

$ neph --help
Commands

list                                             # Display a list of servers
images                                           # Display available images
flavors                                          # List available flavors
status                                           # Display server status
create [name] [image] [flavor]                   # Creates a node with name, image name, flavor
  -C/--count=[NUMERIC]                           # create foo, foo2, foo3, ...
save [nodename] [savename]                       # Save an image of the node
destroy [name]                                   # Destroy a given node
password [node] [password]                       # Change a password on given node
delete [image]                                   # Delete an image
bootstrap [name] [image] [flavor]                # Create a VM and run a chef bootstrapper, optional recipe, bootstrap, cookbooks args
restrap [name] [image] [flavor]                  # Destroy and bootstrap
archive [name] [image] [flavor] [savename]       # Boostrap a VM and save an image of it

Global options

-c/--cookbooks=[STRING]                          # optional cookbooks URI
-p/--personality=[STRING]                        # comma-separated tuple of contents,targetfile to be placed at startup
-b/--bootstrap=[STRING]                          # optional bootstrapper URI, defaults to https://github.com/jodell/cookbooks/raw/master/bin/bootstrap.sh
-r/--recipe=[STRING]                             # run this recipe after bootstrapping
-v/--vpn-credential-file=[STRING]                # specify a vpnpass file to seed the target vm
-P/--prestrap=[STRING]                           # Executes a command or the contents of a file on a VM prior to bootstrapping
-?/--help                                        # Print help message

Extra Hooks

  • personality: Uses the rackspace API hook of dropping custom files onto the new VM at creation time. By default, your DSA or RSA public key from your home is added to the root user's authorized_key file.
  • vpn credentials: If you expose a ~/.vpnpass file on the machine where nephele is invoked, this will get added as a part of the personality of a new VM, ideally used by an openvpn setup on the target.
  • prestrap: Specific to my bootstrapper at the moment, this allows for twiddling chef-solo log settings at the time of nephele creation. This will change over time.

LICENSE

SEE LICENSE

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