Hi Devs,
I'm experimenting with jclouds Docker, and trying to invoke some Docker API
calls.
The code snippet of the sample client I'm using is as follows...[1] I'm
trying to list the images.
[1]
Properties overrides = new Properties();
overrides.setProperty(Constants.PROPERTY_MAX_RETRIES, "15");
overrides.setProperty("jclouds.ssh.retry-auth", "true");
overrides.setProperty("jclouds.endpoint", "http://127.0.0.1:4243";);
overrides.setProperty("type","docker");
Iterable<Module> modules =
ImmutableSet.<Module> of(new SshjSshClientModule(), new
SLF4JLoggingModule());
ComputeServiceContext computeServiceContext =
ContextBuilder.newBuilder("docker")
.credentials("root","root").modules(modules)
.overrides(overrides).buildView(ComputeServiceContext.class);
ComputeService
computeService=computeServiceContext.getComputeService();
computeService.listImages();
But when this is executed I'm getting following exception [2] , a NPE when
doing a pre-conditions check. I did a debug through the code and found the
values being passed to org.jclouds.docker.domain.Image constructor
are getting null. (for eg, id, parent, created, container etc..).
However, If I do a curl -X GET http://127.0.0.1:4243/images/json, directly
through Docker, I'm getting all the images as the response. [3]
Any idea what could have done wrong in the java client?
[2]
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
details.
Exception in thread "main" org.jclouds.http.HttpResponseException: Error
parsing input
{statusCode=200, message=OK, headers={Date=[Wed, 23 Jul 2014 06:00:25
GMT]}, payload=[content=true, contentMetadata=[contentDisposition=null,
contentEncoding=null, contentLanguage=null, contentLength=1468,
contentMD5=null, contentType=application/json, expires=null],
written=false]}
at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:67)
at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:42)
at
org.jclouds.rest.internal.InvokeHttpMethod.invoke(InvokeHttpMethod.java:90)
at
org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:73)
at
org.jclouds.rest.internal.InvokeHttpMethod.apply(InvokeHttpMethod.java:44)
at
org.jclouds.reflect.FunctionalReflection$FunctionalInvocationHandler.handleInvocation(FunctionalReflection.java:117)
at
com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:87)
at $Proxy49.inspectImage(Unknown Source)
at
org.jclouds.docker.compute.strategy.DockerComputeServiceAdapter.listImages(DockerComputeServiceAdapter.java:161)
at
org.jclouds.docker.compute.strategy.DockerComputeServiceAdapter.listImages(DockerComputeServiceAdapter.java:58)
at
org.jclouds.compute.config.ComputeServiceAdapterContextModule$2.get(ComputeServiceAdapterContextModule.java:121)
at
org.jclouds.compute.config.ComputeServiceAdapterContextModule$2.get(ComputeServiceAdapterContextModule.java:118)
at
org.jclouds.rest.suppliers.MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier$SetAndThrowAuthorizationExceptionSupplierBackedLoader.load(MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier.java:73)
at
org.jclouds.rest.suppliers.MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier$SetAndThrowAuthorizationExceptionSupplierBackedLoader.load(MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier.java:57)
at
com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3524)
at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2317)
at
com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2280)
at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2195)
at com.google.common.cache.LocalCache.get(LocalCache.java:3934)
at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3938)
at
com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4821)
at
org.jclouds.rest.suppliers.MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier.get(MemoizedRetryOnTimeOutButNotOnAuthorizationExceptionSupplier.java:119)
at
org.jclouds.compute.suppliers.ImageCacheSupplier.get(ImageCacheSupplier.java:64)
at
org.jclouds.compute.suppliers.ImageCacheSupplier.get(ImageCacheSupplier.java:45)
at
org.jclouds.compute.internal.BaseComputeService.listImages(BaseComputeService.java:377)
at test.docker.client.MainClass.main(MainClass.java:55)
Caused by: java.lang.NullPointerException: id
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:229)
at org.jclouds.docker.domain.Image.<init>(Image.java:57)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at
com.google.common.reflect.Invokable$ConstructorInvokable.invokeInternal(Invokable.java:242)
at com.google.common.reflect.Invokable.invoke(Invokable.java:102)
at
org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.newInstance(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:212)
at
org.jclouds.json.internal.DeserializationConstructorAndReflectiveTypeAdapterFactory$DeserializeIntoParameterizedConstructor.read(DeserializationConstructorAndReflectiveTypeAdapterFactory.java:192)
at com.google.gson.Gson.fromJson(Gson.java:803)
at com.google.gson.Gson.fromJson(Gson.java:768)
at com.google.gson.Gson.fromJson(Gson.java:717)
at org.jclouds.json.internal.GsonWrapper.fromJson(GsonWrapper.java:42)
at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:82)
at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:76)
at org.jclouds.http.functions.ParseJson.apply(ParseJson.java:62)
... 25 more
[3]
sajith@sajith:/tmp$ curl -X GET http://127.0.0.1:4243/images/json
[{"Created":1404164147,"Id":"58faa899733f1db4bf5722b12da74e6edf3c67c8f6d8db6559f547f9416f3c7e","ParentId":"6c3df001ea12dcf848ff51930954e2129ac8f5717ce98819237d2d5d3e8ddd25","RepoTags":["ubuntu:14.10","ubuntu:utopic"],"Size":0,"VirtualSize":195975166}
,{"Created":1403644956,"Id":"ea7d6801c5389e32dcf9577c3778f1eba9a1ee978db8f48020e4c479bc26e468","ParentId":"a343823119db57543086463ae7da8aaadbcef25781c0c4d121397a2550a419a6","RepoTags":["ubuntu:precise","ubuntu:12.04"],"Size":0,"VirtualSize":127478945}
,{"Created":1403128455,"Id":"c5881f11ded97fd2252adf93268114329e985624c5d7bb86e439a36109d1124e","ParentId":"5796a7edb16bffa3408e0f00b1b8dc0fa4651ac88b68eee5a01b088bedb9c54a","RepoTags":["ubuntu:12.10","ubuntu:quantal"],"Size":70975635,"VirtualSize":172159231}
,{"Created":1403128435,"Id":"463ff6be4238c14f5b88898f17b47a9cf494f9a9be7b6170c3e852568d2b0432","ParentId":"47dd6d11a49fc66a304bb679d545e64335cfb1f12dacf76c89e1cbe50af5574d","RepoTags":["ubuntu:13.04","ubuntu:raring"],"Size":70819651,"VirtualSize":169359891}
,{"Created":1403128415,"Id":"195eb90b534950d334188c3627f860fbdf898e224d8a0a11ec54ff453175e081","ParentId":"209ea56fda6dc2fb013e4d1e40cb678b2af91d1b54a71529f7df0bd867adc961","RepoTags":["ubuntu:saucy","ubuntu:13.10"],"Size":4411741,"VirtualSize":184716170}
,{"Created":1403128361,"Id":"e54ca5efa2e962582a223ca9810f7f1b62ea9b5c3975d14a5da79d3bf6020f37","ParentId":"6c37f792ddacad573016e6aea7fc9fb377127b4767ce6104c9f869314a12041e","RepoTags":["ubuntu:trusty","ubuntu:14.04","ubuntu:latest"],"Size":178365,"VirtualSize":276464769}
,{"Created":1398108230,"Id":"3db9c44f45209632d6050b35958829c3a2aa256d81b9a7be45b362ff85c54710","ParentId":"6cfa4d1f33fb861d4d114f43b25abd0ac737509268065cdfd69d544a59c85ab8","RepoTags":["ubuntu:lucid","ubuntu:10.04"],"Size":182964289,"VirtualSize":182964289}
--
Best Regards
Sajith
