Introduction to Apache jclouds The java multi-cloud toolkit Ignasi Barrera Apache jclouds PMC [email protected] 

Agenda •  What is Apache jclouds? •  What does it do? •  Code examples •  Roadmap: what’s next? 

What is Apache jclouds? An open source multi-cloud toolkit for the Java platform 

Why does multi-cloud matter? •  High availability •  Privacy •  Cost •  Performance •  Support One size does not fit all Avoid lock-in 

What does it do? Helps existing tools connect to cloud services •  Consistent integration pattern •  Pluggable components •  Addresses service quirks in a clean way •  Error/retry handling •  Pagination •  (Re)Authentication 

How? APIs A P I Endpoint Credentials … APIs are generic and represent common service offerings: EC2, Nova... 

How? Providers P R O V I D E R A P I LOCATION + DEFAULTS Configuration Providers represent concrete cloud services: API + location + defaults AWS, GCE, Rackspace… 

How? Pluggable strategies P R O V I D E R A P I LOCATION + DEFAULTS Configuration Pluggable strategies Error/retry policies Pagination Drivers 

How? Portable abstractions A P I P R O V I D E R S E R V I C E S M O D E L Compute Blob Store Load Balancer 

Connection to a Provider ComputeServiceContext ctx = ContextBuilder.newBuilder(”hpcloud-compute") .credentials("identity", "credential") .buildView(ComputeServiceContext.class); 

Connection to an API ComputeServiceContext ctx = ContextBuilder.newBuilder(”hpcloud-compute") .credentials("identity", "credential") .buildView(ComputeServiceContext.class); ComputeServiceContext ctx = ContextBuilder.newBuilder(”openstack-nova") .credentials("identity", "credential") .endpoint(“http://keystone.endpoint:5000/v2.0/”) .buildView(ComputeServiceContext.class); 

Getting the services ComputeServiceContext ctx = ContextBuilder.newBuilder(”hpcloud-compute") .credentials("identity", "credential") .buildView(ComputeServiceContext.class); ComputeServiceContext ctx = ContextBuilder.newBuilder(”openstack-nova") .credentials("identity", "credential") .endpoint(“http://keystone.endpoint:5000/v2.0/”) .buildView(ComputeServiceContext.class); ComputeService compute = ctx.getComputeService(); NovaApi nova = ctx.unwrapApi(NovaApi. class); 

Compute example ComputeService compute = ctx.getComputeService(); Template template = compute.templateBuilder() .osFamily(OsFamily.UBUNTU) .minRam(2048) .options(inboundPorts(22, 80)) .build(); compute.createNodesInGroup("jclouds", 1, template); 

Configure a node compute.runScriptOnNode(“node-id”, script, options) compute.runScriptOnNodesMatching(filter, script, options) compute.submitScriptOnNode(“node-id”, script, options) 

Access the node SshClient ssh = ctx.utils().sshForNode().apply(“node-id”); 

Access the node SshClient ssh = ctx.utils().sshForNode().apply(“node-id”); ssh.get(path); ssh.put(path, content); ExecResponse result = ssh.exec(script); ExecChannel channel = ssh.execChannel(script); 

Open source ecosystem •  Apache Stratos •  Apache Brooklyn (incubating) •  Jenkins •  Chef •  jclouds CLI 

What’s next? •  Dropping support for Java 6 •  OpenStack Neutron and Swift refactor •  Docker •  DigitalOcean API v2 •  More docs! 

Thank you! http://jclouds.apache.org