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jclouds High Level Overview by Adrian Cole
 

jclouds High Level Overview by Adrian Cole

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    jclouds High Level Overview by Adrian Cole jclouds High Level Overview by Adrian Cole Presentation Transcript

    • Overview@jclouds
    • Agenda• What is jclouds?• What does it do?• Relationship to other projects• Code examples• Extras
    • What is jclouds?• Apache licensed Java multi-cloud SDK• b 3/2009; ~525k loc; 110 contributors• connects tools portably regardless of, yet also availing backend• Over 40 cloud providers supported• next release is 1.6 (March)
    • What does it do?• Helps projects become cloud projects, and developers become cloud developers. • through consistency in • Tools vs Services • Services vs Model • API approach
    • Tools vs Services• jclouds helps existing tools connect to cloud services • a consistent integration pattern and configuration • adjustable library dependencies • sample patterns, integrations, and abstractions
    • Services vs Model• jclouds simplifies modeling of cloud services • Standards focus with pragmatic extensions. (JSR-330, 311) • Clean means of addressing service quirks • pluggable strategies for error/retry
    • API Approach• Backend before abstraction • proprietary features, multiple abstractions• Async/Sync api mirroring • scalably deal with 400ms-3m response time• Guava• Universal Testing Approach • unit, “expect”, and live tests
    • Who’s integrating? you?
    • Alternatives• Roll-your-own • Jersey, RESTEasy• EC2-based cloud apis • typica, jets3t• Dasein Cloud API• Proprietary Service Provider SDKs
    • Portable APIs BlobStore LoadBalancer DNS, Block Storage, Compute Network, IdentityProvider-Specific HooksEmbeddable40 built-in providers & 20 apis and dialects!
    • java overview github jclouds/jclouds// initcontext = ContextBuilder.newBuilder(“cloudfiles-us”) .credentials(apikey, secret) .buildView(BlobStoreContext.class);blobStore = context.getBlobStore();// create containerblobStore.createContainerInLocation(null, “adriansmovies”);// add blobblob = blobStore.blobBuilder("sushi.avi").payload(file).build();blobStore.putBlob(“adriansmovies”, blob);
    • java overview github jclouds/jclouds// initcontext = ContextBuilder.newBuilder(“openstack-nova”) .endpoint(“https://keystone:5000/v2.0”) .credentials(tenantUser, password) .modules(singleton(new SshjSshClientModule())) .buildView(ComputeServiceContext.class);compute = context.getComputeService();// create a couple nodes and open a couple portsnodes = compute.createNodesInGroup(“hbase-master”, 1, runScript(install). inboundPorts(60000, 60010));// gather my ip addressesfor (NodeMetadata node : nodes) { node.getPublicAddresses(); node.getPrivateAddresses();} @jclouds 12
    • jclouds locationsLocation helpsnormalize placementacross resource typesAll top-level resources listAssignableLocationshave a location USLocation metadata is IE SGextensible
    • jclouds modularityAPIs are softwarefocused jclouds-blobstoreProviders are offering s3focused aws-s3 scality-ring walrusAPI + location + googlestorage scaleup-storagedefaults = Provider eucaluptus-partnercloud-s3
    • New  Toys• Fluent  Pagina,on  (1.5)• Small  distribu,on  (1.6)@jclouds
    • Fluent Pagination• Many apis == pagination differences• Desire ease, but also ability to “opt-out” of lazy continuations• Can we make it easier to filter/transform resources?
    • FluentIterablelazy advance through all your metrics:FluentIterable<Metric> allMetrics = cloudwatch.getMetricApi().list().concat();advance only until we find the load balancer we want:Optional<LoadBalancer> firstInterestingLoadBalancer = elb .getLoadBalancerApi().list() .concat() .firstMatch(isInterestingLB());get only the first page of google instancesIterableWithMarker<Instance> firstPage = gce.getInstanceApiForProject("myproject").listFirstPage();
    • Small Distribution• Before 1.6 we had more deps• We now have much less deps• You can now make a <5MB cloud app!
    • Where  now?• jclouds.org• github/jclouds/jclouds-­‐examples• jclouds@googlegroups.com• @jclouds@jclouds
    • java overview github jclouds/jclouds// create a couple nodes and open a couple portsnodes = compute.createNodesInGroup(“web-prod”, 2, runScript(installApache). inboundPorts(22, 8080));// load balance the nodes mapping port 80 -> 8080lb = lbapi.createLoadBalancerInLocation(null, “web-prod”, “HTTP”, 80, 8080, nodes);// gather my lb addressesfor (String lbAddress : lb.getAddresses()) {} @jclouds 20
    • chef integration github jclouds/jclouds-chefif (any(cookbookVersions, containsRecipe("apache2"))) runList = new RunListBuilder().addRecipe("apache2").build();chef.updateRunListForGroup(runList, “web-prod”);boot = chef.createClientAndBootstrapScriptForGroup(“web-prod”);nodes = compute.createNodesInGroup(“web-prod”, 1, runScript(boot));
    • CLI github jclouds/jclouds-cli
    • BYON github jclouds/jclouds