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README.md

compute-basics

This is a simple example command line client that creates a node in a ComputeService provider and executes echo hello on everything in its group.

Build

Ensure you have maven 3.02 or higher installed, then execute mvn install to build the example. Note you also need an ssh key setup in your home directory.

If you don't already have ~/.ssh/id_rsa present, generate a key with the command ssh-keygen -t rsa and leave the passphrase blank.

Run

Invoke the jar, passing the name of the cloud provider you with to access (ex. aws-ec2, gogrid), identity (ex. accesskey, username), credential (ex. secretkey, password), then the name of the group you'd like to add the node to.

The 4th parameter represents the action you want to run. Supported actions are:

  • add
  • exec
  • run
  • destroy
  • listnodes
  • listimages

Noting that destroy will destroy all nodes in the group. If the 4th parameter is exec, you must quote a command to execute across the group of nodes.

To add a node to the group mygroup:

java -jar target/compute-basics-jar-with-dependencies.jar provider identity credential mygroup add

To execute a command to all nodes of the group mygroup:

java -jar target/compute-basics-jar-with-dependencies.jar provider identity credential mygroup exec "echo hello"

To run a script file in all nodes of the group mygroup

java -jar target/compute-basics-jar-with-dependencies.jar provider identity credential mygroup run /path/to/script-file

To destroy all nodes of the group mygroup:

java -jar target/compute-basics-jar-with-dependencies.jar provider identity credential mygroup destroy

To list all nodes (the groupname parameter is not used):

java -jar target/compute-basics-jar-with-dependencies.jar provider identity credential mygroup listnodes

To list all images (the groupname parameter is not used):

java -jar target/compute-basics-jar-with-dependencies.jar provider identity credential mygroup listimages

Amazon EC2

java -jar target/compute-basics-jar-with-dependencies.jar aws-ec2 \
      accesskey secretkey mygroup add

HP Cloud

java -jar target/compute-basics-jar-with-dependencies.jar hpcloud-compute \
      tenantId:accesskey secretkey mygroup add

TryStack.org

java -jar target/compute-basics-jar-with-dependencies.jar trystack-nova tenantId:user password mygroup add

Your own OpenStack Nova

java \
     -Dopenstack-nova.image-id=RegionOne/15 \
     -Dopenstack-nova.login-user=ubuntu \
     -Djclouds.trust-all-certs=true \
     -Djclouds.keystone.credential-type=passwordCredentials \
     -Dopenstack-nova.endpoint=https://keystone:35357 \
     -jar target/compute-basics-jar-with-dependencies.jar \
     openstack-nova tenantId:user password mygroup add

Your own OpenStack Nova emulating EC2

java \
     -Dopenstack-nova-ec2.image-id=nova/ami-00000009 \
     -Dopenstack-nova-ec2.login-user=ubuntu \
     -Djclouds.trust-all-certs=true \
     -Dopenstack-nova-ec2.endpoint=https://novahost/services/Cloud \
     -jar target/compute-basics-jar-with-dependencies.jar \
     openstack-nova-ec2 tenantId:accesskey secretkey mygroup add

Google Compute Engine provider

java -jar target/compute-basics-jar-with-dependencies.jar \
     google-compute-engine \
     [email protected] \
     /path/to/json-key.json \
     mygroup add

For more information on service accounts and getting a JSON key see here

License

Copyright (C) 2009-2014 The Apache Software Foundation

Licensed under the Apache License, Version 2.0