jclouds/demos/test/ComputeAndBlobStoreTogether...

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/**
*
* Copyright (C) 2010 Cloud Conscious, LLC. <info@cloudconscious.com>
*
* ====================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ====================================================================
*/
package org.jclouds.aws;
import static org.jclouds.compute.ComputeTestUtils.buildScript;
import static org.jclouds.compute.options.TemplateOptions.Builder.runScript;
import static org.jclouds.compute.util.ComputeServiceUtils.execHttpResponse;
import static org.jclouds.compute.util.ComputeServiceUtils.extractTargzIntoDirectory;
import static org.jclouds.scriptbuilder.domain.Statements.newStatementList;
import java.net.URI;
import org.jclouds.aws.ec2.compute.BlobStoreAndComputeServiceLiveTest;
import org.jclouds.blobstore.BlobStore;
import org.jclouds.compute.RunNodesException;
import org.jclouds.compute.domain.NodeMetadata;
import org.jclouds.compute.domain.OperatingSystem;
import org.jclouds.http.HttpRequest;
import org.jclouds.scriptbuilder.domain.OsFamily;
import org.jclouds.scriptbuilder.domain.Statement;
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import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
/**
* This test helps us understand how we can use the power of blobstores to our favor.
* <p/>
* This test is in aws only because it happens to have both blobstore and compute
*
* TODO create a blobstore and compute integration module
*
* @author Adrian Cole
*/
@Test(groups = "live")
public class ComputeAndBlobStoreTogetherHappilyLiveTest extends BlobStoreAndComputeServiceLiveTest {
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@BeforeClass
protected void setupCredentials() {
blobStoreProvider = "s3";
computeServiceProvider = "ec2";
}
/**
* This test generates a bootstrap script based on the default operating system of the compute
* provider.
* <p/>
* It then uploads this to a blobstore, in a private location. Now, we want the bootstrap of the
* server to be able to load from this location without sending credentials to the starting
* machine. Accordingly, we send a signed url instead.
* <p/>
* Using the {@link BlobStore} api, we get a signed url corresponding to the bootstrap script. We
* next convert this into something that can be invoked via the commandline. Looking around, it
* seems like alestic runurl is pretty close. However, it is limited as it only works on requests
* that can be fully specified without headers (ex. Amazon S3). Instead, we use a variant
* (execHttpResponse).
* <p/>
* execHttpResponse simply assembles an http request, headers and all, and passes it to bash
* <p/>
* With this script ready, any node or nodes will take instructions from the blobstore when it
* boots up. we verify this with an assertion.
*
*/
@Test
public void testWeCanIndirectBootstrapInstructionsToAnArbitraryAndPrivateBlobStore() throws RunNodesException {
OperatingSystem defaultOperatingSystem = computeContext.getComputeService().templateBuilder().build().getImage()
.getOperatingSystem();
// using jclouds ability to detect operating systems before we launch them, we can avoid
// the bad practice of assuming everything is ubuntu.
uploadBlob(tag, "openjdk/install", buildScript(defaultOperatingSystem).render(OsFamily.UNIX));
// instead of hard-coding to amazon s3, we can use any blobstore, conceding this test is
// configured for amz. Note we are getting temporary access to a private blob.
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HttpRequest signedRequestOfInstallScript = blobContext.getSigner().signGetBlob(tag, "openjdk/install");
// so one of our commands is to execute the contents of the blob above
Statement installOpenJDK = execHttpResponse(signedRequestOfInstallScript);
// if we want to, we can mix and match batched and ad-hoc commands, such as extracting maven
String mavenVersion = "3.0";
Statement extractMavenIntoUsrLocal = extractTargzIntoDirectory(
URI.create("http://mirrors.ibiblio.org/pub/mirrors/apache//maven/binaries/apache-maven-" + mavenVersion
+ "-bin.tar.gz"), "/usr/local");
// have both of these commands occur on boot
Statement bootstrapInstructions = newStatementList(installOpenJDK, extractMavenIntoUsrLocal);
// now that we have the correct instructions, kick-off the provisioner
Iterable<? extends NodeMetadata> nodes = computeContext.getComputeService().runNodesWithTag(tag, 2,
runScript(bootstrapInstructions));
// ensure the bootstrap operated by checking for the components we installed at boot time.
// Note this test will ensure both nodes are in sync.
assertSshOutputOfCommandContains(nodes, "java -version", "OpenJDK");
assertSshOutputOfCommandContains(nodes, "/usr/local/apache-maven-" + mavenVersion + "/bin/mvn -version",
"Apache Maven " + mavenVersion + "");
}
}