JCloud seems to try to publish artifacts to blob store but tries to contact localhost:5000 which is the wrong place to look for keystone endpoint. I also couldn't figure out where to configure that for JCloud plugin the UI seems terse for the blob store.

Publish artifacts to JClouds Clouds Storage Using JClouds blobStoreProfile: jenkins
Publish artifacts to JClouds Clouds Storage container=output_rpms, path=epel-6-x86_64/cdo, file=cdo-1.6.2-1.el6.src.rpm
ERROR: Publisher jenkins.plugins.jclouds.blobstore.BlobStorePublisher aborted due to exception
org.jclouds.http.HttpResponseException: Connection refused connecting to POST http://localhost:5000/v2.0/tokens HTTP/1.1
at org.jclouds.http.internal.BaseHttpCommandExecutorService.invoke(BaseHttpCommandExecutorService.java:162)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.invoke(InvokeSyncToAsyncHttpMethod.java:129)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.apply(InvokeSyncToAsyncHttpMethod.java:95)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.apply(InvokeSyncToAsyncHttpMethod.java:56)
at org.jclouds.rest.internal.DelegatesToInvocationFunction.handle(DelegatesToInvocationFunction.java:156)
at org.jclouds.rest.internal.DelegatesToInvocationFunction.invoke(DelegatesToInvocationFunction.java:123)
at com.sun.proxy.$Proxy95.authenticateWithTenantNameAndCredentials(Unknown Source)
at org.jclouds.openstack.keystone.v2_0.functions.AuthenticatePasswordCredentials.authenticateWithTenantName(AuthenticatePasswordCredentials.java:43)
at org.jclouds.openstack.keystone.v2_0.functions.AuthenticatePasswordCredentials.authenticateWithTenantName(AuthenticatePasswordCredentials.java:31)
at org.jclouds.openstack.keystone.v2_0.functions.internal.BaseAuthenticator.apply(BaseAuthenticator.java:79)
at org.jclouds.openstack.keystone.v2_0.functions.internal.BaseAuthenticator.apply(BaseAuthenticator.java:36)
at shaded.com.google.common.cache.CacheLoader$FunctionToCacheLoader.load(CacheLoader.java:148)
at shaded.com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3522)
at shaded.com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2315)
at shaded.com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2278)
at shaded.com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193)
at shaded.com.google.common.cache.LocalCache.get(LocalCache.java:3932)
at shaded.com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3936)
at shaded.com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4806)
at shaded.com.google.common.cache.LocalCache$LocalLoadingCache.getUnchecked(LocalCache.java:4812)
at org.jclouds.openstack.keystone.v2_0.config.KeystoneAuthenticationModule$2.get(KeystoneAuthenticationModule.java:234)
at org.jclouds.openstack.keystone.v2_0.config.KeystoneAuthenticationModule$2.get(KeystoneAuthenticationModule.java:231)
at org.jclouds.openstack.keystone.v2_0.suppliers.LocationIdToURIFromAccessForTypeAndVersion.get(LocationIdToURIFromAccessForTypeAndVersion.java:95)
at org.jclouds.openstack.keystone.v2_0.suppliers.LocationIdToURIFromAccessForTypeAndVersion.get(LocationIdToURIFromAccessForTypeAndVersion.java:54)
at org.jclouds.util.Suppliers2$1.get(Suppliers2.java:39)
at org.jclouds.rest.internal.RestAnnotationProcessor.getEndpointFor(RestAnnotationProcessor.java:533)
at org.jclouds.rest.internal.RestAnnotationProcessor.findEndpoint(RestAnnotationProcessor.java:374)
at org.jclouds.rest.internal.RestAnnotationProcessor.apply(RestAnnotationProcessor.java:198)
at org.jclouds.rest.internal.RestAnnotationProcessor.apply(RestAnnotationProcessor.java:133)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.toCommand(InvokeSyncToAsyncHttpMethod.java:238)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.invoke(InvokeSyncToAsyncHttpMethod.java:123)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.apply(InvokeSyncToAsyncHttpMethod.java:95)
at org.jclouds.rest.internal.InvokeSyncToAsyncHttpMethod.apply(InvokeSyncToAsyncHttpMethod.java:56)
at org.jclouds.rest.internal.DelegatesToInvocationFunction.handle(DelegatesToInvocationFunction.java:156)
at org.jclouds.rest.internal.DelegatesToInvocationFunction.invoke(DelegatesToInvocationFunction.java:123)
at com.sun.proxy.$Proxy163.containerExists(Unknown Source)
at org.jclouds.openstack.swift.blobstore.SwiftBlobStore.containerExists(SwiftBlobStore.java:123)
at jenkins.plugins.jclouds.blobstore.BlobStoreProfile.upload(BlobStoreProfile.java:108)
at jenkins.plugins.jclouds.blobstore.BlobStorePublisher.perform(BlobStorePublisher.java:159)
at hudson.tasks.BuildStepMonitor$2.perform(BuildStepMonitor.java:32)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:714)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:663)
at hudson.model.Run.execute(Run.java:1713)
at hudson.matrix.MatrixRun.run(MatrixRun.java:146)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:231)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:385)
at java.net.Socket.connect(Socket.java:546)
at sun.net.NetworkClient.doConnect(NetworkClient.java:173)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
at sun.net.www.http.HttpClient.New(HttpClient.java:321)
at sun.net.www.http.HttpClient.New(HttpClient.java:338)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:935)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:914)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:801)
at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:979)
at org.jclouds.http.internal.JavaUrlHttpCommandExecutorService.writePayloadToConnection(JavaUrlHttpCommandExecutorService.java:305)
at org.jclouds.http.internal.JavaUrlHttpCommandExecutorService.convert(JavaUrlHttpCommandExecutorService.java:192)
at org.jclouds.http.internal.JavaUrlHttpCommandExecutorService.convert(JavaUrlHttpCommandExecutorService.java:72)
at org.jclouds.http.internal.BaseHttpCommandExecutorService.invoke(BaseHttpCommandExecutorService.java:140)
... 47 more
Finished: FAILURE