com.amazonaws.services.cloudformation.model.DescribeStacksRequest Java Examples

@Test
void getObject_stackWithTagsDefined_createTagsMap() throws Exception {
	// Arrange
	AmazonCloudFormation cloudFormation = mock(AmazonCloudFormation.class);
	StackNameProvider stackNameProvider = mock(StackNameProvider.class);

	when(stackNameProvider.getStackName()).thenReturn("testStack");
	when(cloudFormation
			.describeStacks(new DescribeStacksRequest().withStackName("testStack")))
					.thenReturn(new DescribeStacksResult().withStacks(new Stack()
							.withTags(new Tag().withKey("key1").withValue("value1"),
									new Tag().withKey("key2").withValue("value2"))));

	StackResourceUserTagsFactoryBean factoryBean = new StackResourceUserTagsFactoryBean(
			cloudFormation, stackNameProvider);

	// Act
	factoryBean.afterPropertiesSet();
	Map<String, String> factoryBeanObject = factoryBean.getObject();

	// Assert
	assertThat(factoryBeanObject.get("key1")).isEqualTo("value1");
	assertThat(factoryBeanObject.get("key2")).isEqualTo("value2");
}
 

public CFTStackInfo getStackInfo() throws Exception {
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest();
    describeStacksRequest.setStackName(stackName);

    List<Stack> stacks = amazonCloudFormation.describeStacks(describeStacksRequest).getStacks();
    CFTStackInfo cftStackInfo = null;
    if (!stacks.isEmpty()) {
        for (Stack stack : stacks) {
            cftStackInfo = new CFTStackInfo(stack);
        }
    }
    else {
        throw new Exception("Stack not found " + stackName);
    }
    return cftStackInfo;
}
 

@Test
public void createStackWithStackChangeSetReviewInProgress() throws ExecutionException {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	Mockito.when(client.waiters()).thenReturn(new AmazonCloudFormationWaiters(client));
	Mockito.when(client.describeStacks(new DescribeStacksRequest().withStackName("foo")))
			.thenReturn(new DescribeStacksResult().withStacks(new Stack().withStackStatus("REVIEW_IN_PROGRESS")));

	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);

	stack.createChangeSet("c1", "templateBody", null, Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), PollConfiguration.DEFAULT, ChangeSetType.UPDATE, "myarn", null);

	ArgumentCaptor<CreateChangeSetRequest> captor = ArgumentCaptor.forClass(CreateChangeSetRequest.class);
	Mockito.verify(client).createChangeSet(captor.capture());
	Assertions.assertThat(captor.getValue()).isEqualTo(new CreateChangeSetRequest()
															   .withChangeSetType(ChangeSetType.CREATE)
															   .withStackName("foo")
															   .withTemplateBody("templateBody")
															   .withCapabilities(Capability.values())
															   .withParameters(Collections.emptyList())
															   .withChangeSetName("c1")
															   .withRoleARN("myarn")
	);
	Mockito.verify(this.eventPrinter).waitAndPrintChangeSetEvents(Mockito.eq("foo"), Mockito.eq("c1"), Mockito.any(Waiter.class), Mockito.eq(PollConfiguration.DEFAULT));
}
 

private static Properties getCloudformationOutputs(AmazonCloudFormation cloudFormation, CreateStackResult stack) {
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest();
    describeStacksRequest.setStackName(stack.getStackId());
    final DescribeStacksResult describeStacksResult = cloudFormation
            .describeStacks(describeStacksRequest);

    Properties outputProps = new Properties();
    for (Stack st : describeStacksResult.getStacks()) {
        StringBuilder outputsStr = new StringBuilder("Infrastructure/Deployment outputs {\n");
        for (Output output : st.getOutputs()) {
            outputProps.setProperty(output.getOutputKey(), output.getOutputValue());
            outputsStr.append(output.getOutputKey()).append("=").append(output.getOutputValue()).append("\n");
        }
        //Log cfn outputs
        logger.info(outputsStr.toString() + "\n}");
    }
    return outputProps;
}
 

@Test
public void updateStackWithStackChangeSet() throws ExecutionException {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	Mockito.when(client.waiters()).thenReturn(new AmazonCloudFormationWaiters(client));
	Mockito.when(client.describeStacks(new DescribeStacksRequest().withStackName("foo")))
			.thenReturn(new DescribeStacksResult().withStacks(new Stack().withStackStatus("CREATE_COMPLETE")));

	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);

	stack.createChangeSet("c1", "templateBody", null, Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), PollConfiguration.DEFAULT, ChangeSetType.UPDATE, "myarn", null);

	ArgumentCaptor<CreateChangeSetRequest> captor = ArgumentCaptor.forClass(CreateChangeSetRequest.class);
	Mockito.verify(client).createChangeSet(captor.capture());
	Assertions.assertThat(captor.getValue()).isEqualTo(new CreateChangeSetRequest()
															   .withChangeSetType(ChangeSetType.UPDATE)
															   .withStackName("foo")
															   .withTemplateBody("templateBody")
															   .withCapabilities(Capability.values())
															   .withParameters(Collections.emptyList())
															   .withChangeSetName("c1")
															   .withRoleARN("myarn")
	);
	Mockito.verify(this.eventPrinter).waitAndPrintChangeSetEvents(Mockito.eq("foo"), Mockito.eq("c1"), Mockito.any(Waiter.class), Mockito.eq(PollConfiguration.DEFAULT));
}
 

@Override
public CreatedCloudNetwork createNetworkWithSubnets(NetworkCreationRequest networkRequest) {
    AwsCredentialView credentialView = new AwsCredentialView(networkRequest.getCloudCredential());
    AmazonCloudFormationRetryClient cloudFormationRetryClient = getCloudFormationRetryClient(credentialView, networkRequest.getRegion().value());
    List<SubnetRequest> subnetRequests = getCloudSubNets(networkRequest);
    String cfStackName = networkRequest.getStackName();
    try {
        cloudFormationRetryClient.describeStacks(new DescribeStacksRequest().withStackName(cfStackName));
        LOGGER.warn("AWS CloudFormation stack for Network with stack name: '{}' already exists. Attaching this one to the network.", cfStackName);
        return getCreatedNetworkWithPolling(networkRequest, credentialView, cloudFormationRetryClient, subnetRequests);
    } catch (AmazonServiceException e) {
        if (networkDoesNotExist(e)) {
            LOGGER.warn("{} occurred during describe AWS CloudFormation stack for Network with stack name: '{}'. "
                    + "Assuming the CF Stack does not exist, so creating a new one. Exception message: {}", e.getClass(), cfStackName, e.getMessage());
            String cloudFormationTemplate = createTemplate(networkRequest, subnetRequests);
            return createNewCfNetworkStack(networkRequest, credentialView, cloudFormationRetryClient, cloudFormationTemplate, subnetRequests);
        } else {
            throw new CloudConnectorException("Failed to create network.", e);
        }
    }
}
 

@Test
public void createNewStackChangeSet() throws ExecutionException {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	Mockito.when(client.waiters()).thenReturn(new AmazonCloudFormationWaiters(client));
	Mockito.when(client.describeStacks(new DescribeStacksRequest().withStackName("foo")))
			.thenReturn(new DescribeStacksResult());

	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);

	stack.createChangeSet("c1", "templateBody", null, Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), PollConfiguration.DEFAULT, ChangeSetType.CREATE, "myarn", null);

	ArgumentCaptor<CreateChangeSetRequest> captor = ArgumentCaptor.forClass(CreateChangeSetRequest.class);
	Mockito.verify(client).createChangeSet(captor.capture());
	Assertions.assertThat(captor.getValue()).isEqualTo(new CreateChangeSetRequest()
															   .withChangeSetType(ChangeSetType.CREATE)
															   .withStackName("foo")
															   .withTemplateBody("templateBody")
															   .withCapabilities(Capability.values())
															   .withParameters(Collections.emptyList())
															   .withChangeSetName("c1")
															   .withRoleARN("myarn")
	);
	Mockito.verify(this.eventPrinter).waitAndPrintChangeSetEvents(Mockito.eq("foo"), Mockito.eq("c1"), Mockito.any(Waiter.class), Mockito.eq(PollConfiguration.DEFAULT));
}
 

void waitAndPrintStackEvents(String stack, Waiter<DescribeStacksRequest> waiter, PollConfiguration pollConfiguration) throws ExecutionException {

		final BasicFuture<AmazonWebServiceRequest> waitResult = new BasicFuture<>(null);

		waiter.runAsync(new WaiterParameters<>(new DescribeStacksRequest().withStackName(stack)).withPollingStrategy(this.pollingStrategy(pollConfiguration)), new WaiterHandler() {
			@Override
			public void onWaitSuccess(AmazonWebServiceRequest request) {
				waitResult.completed(request);
			}

			@Override
			public void onWaitFailure(Exception e) {
				waitResult.failed(e);
			}
		});
		this.waitAndPrintEvents(stack, pollConfiguration, waitResult);
	}
 

@Test
public void noExecuteChangeSetIfNoChanges() throws ExecutionException {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);
	Mockito.when(client.describeChangeSet(new DescribeChangeSetRequest()
												  .withStackName("foo")
												  .withChangeSetName("bar")
	)).thenReturn(new DescribeChangeSetResult());
	Mockito.when(client.describeStacks(new DescribeStacksRequest().withStackName("foo")))
			.thenReturn(new DescribeStacksResult().withStacks(new Stack().withOutputs(new Output().withOutputKey("bar").withOutputValue("baz"))));

	Map<String, String> outputs = stack.executeChangeSet("bar", PollConfiguration.DEFAULT);
	Mockito.verify(client, Mockito.never()).executeChangeSet(Mockito.any(ExecuteChangeSetRequest.class));
	Assertions.assertThat(outputs).containsEntry("bar", "baz").containsEntry("jenkinsStackUpdateStatus", "false");
}
 

@Test
public void executeChangeSetWithChanges() throws ExecutionException {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	Mockito.when(client.waiters()).thenReturn(new AmazonCloudFormationWaiters(client));

	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);
	Mockito.when(client.describeChangeSet(new DescribeChangeSetRequest()
												  .withStackName("foo")
												  .withChangeSetName("bar")
	)).thenReturn(new DescribeChangeSetResult()
						  .withChanges(new Change())
	);

	Mockito.when(client.describeStacks(new DescribeStacksRequest().withStackName("foo")))
			.thenReturn(new DescribeStacksResult().withStacks(new Stack().withStackStatus("CREATE_COMPLETE").withOutputs(new Output().withOutputKey("bar").withOutputValue("baz"))));

	Map<String, String> outputs = stack.executeChangeSet("bar", PollConfiguration.DEFAULT);

	Mockito.verify(client).executeChangeSet(Mockito.any(ExecuteChangeSetRequest.class));
	Mockito.verify(this.eventPrinter).waitAndPrintStackEvents(Mockito.eq("foo"), Mockito.any(Waiter.class), Mockito.eq(PollConfiguration.DEFAULT));
	Assertions.assertThat(outputs).containsEntry("bar", "baz").containsEntry("jenkinsStackUpdateStatus", "true");
}
 

private void waitAndDeleteCloudformationStack(AuthenticatedContext ac, CloudStack stack, List<CloudResource> resources,
        AmazonCloudFormationClient amazonCloudFormationClient) {
    CloudResource stackResource = cfStackUtil.getCloudFormationStackResource(resources);
    if (stackResource == null) {
        LOGGER.debug("No cloudformation stack in resources");
        return;
    }
    String cFStackName = stackResource.getName();
    AmazonCloudFormationRetryClient cfRetryClient = awsClient.createCloudFormationRetryClient(amazonCloudFormationClient);
    LOGGER.debug("Search and wait stack with name: {}", cFStackName);
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest().withStackName(cFStackName);
    try {
        retryService.testWith2SecDelayMax15Times(() -> isStackExist(cfRetryClient, cFStackName, describeStacksRequest));
    } catch (ActionFailedException ignored) {
        LOGGER.debug("Stack not found with name: {}", cFStackName);
        return;
    }

    resumeAutoScalingPolicies(ac, stack);
    LOGGER.debug("Delete cloudformation stack from resources");
    DeleteStackRequest deleteStackRequest = new DeleteStackRequest().withStackName(cFStackName);
    cfRetryClient.deleteStack(deleteStackRequest);
    Waiter<DescribeStacksRequest> stackDeleteCompleteWaiter = amazonCloudFormationClient.waiters().stackDeleteComplete();
    try {
        WaiterParameters<DescribeStacksRequest> describeStacksRequestWaiterParameters = new WaiterParameters<>(describeStacksRequest)
                .withPollingStrategy(getBackoffCancellablePollingStrategy(null));
        stackDeleteCompleteWaiter.run(describeStacksRequestWaiterParameters);
    } catch (Exception e) {
        LOGGER.debug("Cloudformation stack delete failed ", e);
        throw new CloudConnectorException(e.getMessage(), e);
    }
    LOGGER.debug("Cloudformation stack from resources has been deleted");
}
 

@Override
protected Map<String, String> createInstance() throws Exception {
	LinkedHashMap<String, String> userTags = new LinkedHashMap<>();
	DescribeStacksResult stacksResult = this.amazonCloudFormation
			.describeStacks(new DescribeStacksRequest()
					.withStackName(this.stackNameProvider.getStackName()));
	for (Stack stack : stacksResult.getStacks()) {
		for (Tag tag : stack.getTags()) {
			userTags.put(tag.getKey(), tag.getValue());
		}
	}
	return userTags;
}
 

private DescribeStackResourcesResult getStackResources(String stackName)
		throws InterruptedException, IOException {
	try {
		DescribeStacksResult describeStacksResult = this.amazonCloudFormationClient
				.describeStacks(new DescribeStacksRequest().withStackName(stackName));
		for (Stack stack : describeStacksResult.getStacks()) {
			if (isAvailable(stack)) {
				return this.amazonCloudFormationClient
						.describeStackResources(new DescribeStackResourcesRequest()
								.withStackName(stack.getStackName()));
			}
			if (isError(stack)) {
				if (this.stackCreatedByThisInstance) {
					throw new IllegalArgumentException("Could not create stack");
				}
				this.amazonCloudFormationClient.deleteStack(
						new DeleteStackRequest().withStackName(stack.getStackName()));
				return getStackResources(stackName);
			}
			if (isInProgress(stack)) {
				// noinspection BusyWait
				Thread.sleep(5000L);
				return getStackResources(stackName);
			}
		}
	}
	catch (AmazonClientException e) {
		String templateBody = FileCopyUtils.copyToString(new InputStreamReader(
				new ClassPathResource(TEMPLATE_PATH).getInputStream()));
		this.amazonCloudFormationClient.createStack(new CreateStackRequest()
				.withTemplateBody(templateBody).withOnFailure(OnFailure.DELETE)
				.withStackName(stackName)
				.withTags(new Tag().withKey("tag1").withValue("value1"))
				.withParameters(new Parameter().withParameterKey("RdsPassword")
						.withParameterValue(this.rdsPassword)));
		this.stackCreatedByThisInstance = true;
	}

	return getStackResources(stackName);
}
 

@Override
public String getInstanceId() {
	DescribeStacksResult describeStacksResult = this.amazonCloudFormationClient
			.describeStacks(new DescribeStacksRequest());
	Stack stack = getStack(describeStacksResult, this.stackName);

	return getOutputValue(stack, this.outputKey);
}
 

public static boolean waitForCloudFormationStackToReachStatus(
        AmazonCloudFormationClient client, String stackName, String status) {
    int count = 0;
    while (true) {
        if (count++ == 100) {
            System.out
                    .println(stackName + " never reached state " + status);
            return false;
        }
        try {
            Thread.sleep(1000 * 30);
        } catch (InterruptedException e) {
            System.out.println(e.getMessage());
            return false;
        }
        String stackStatus = client
                .describeStacks(
                        new DescribeStacksRequest()
                                .withStackName(stackName)).getStacks()
                .get(0).getStackStatus();
        if (stackStatus.equals(status)) {
            return true;
        } else if (stackStatus.contains(FAILED)) {
            System.out.println("The process failed with status " + stackStatus);
            return false;
        }
        System.out.println(stackName + " is in status " + stackStatus);
    }
}
 

public Map<String, String> getOutputs(String cFStackName, AmazonCloudFormationRetryClient client) {
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest().withStackName(cFStackName);
    String outputNotFound = String.format("Couldn't get Cloudformation stack's('%s') output", cFStackName);
    List<Output> cfStackOutputs = client.describeStacks(describeStacksRequest).getStacks()
            .stream().findFirst().orElseThrow(getCloudConnectorExceptionSupplier(outputNotFound)).getOutputs();
    return cfStackOutputs.stream().collect(Collectors.toMap(Output::getOutputKey, Output::getOutputValue));
}
 

@Test
public void createStack() throws ExecutionException {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	Mockito.when(client.waiters()).thenReturn(new AmazonCloudFormationWaiters(client));
	Mockito.when(client.describeStacks(new DescribeStacksRequest().withStackName("foo")))
			.thenReturn(new DescribeStacksResult().withStacks(new Stack().withOutputs(new Output().withOutputKey("bar").withOutputValue("baz"))));

	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);

	Map<String, String> outputs = stack.create("templateBody", null, Collections.emptyList(), Collections.emptyList(), Collections.emptyList(), PollConfiguration.DEFAULT, "myarn", OnFailure.DO_NOTHING.toString(), null);

	ArgumentCaptor<CreateStackRequest> captor = ArgumentCaptor.forClass(CreateStackRequest.class);
	Mockito.verify(client).createStack(captor.capture());
	Assertions.assertThat(captor.getValue()).isEqualTo(new CreateStackRequest()
															   .withStackName("foo")
															   .withTemplateBody("templateBody")
															   .withCapabilities(Capability.values())
															   .withParameters(Collections.emptyList())
															   .withTimeoutInMinutes((int) PollConfiguration.DEFAULT.getTimeout().toMinutes())
															   .withOnFailure(OnFailure.DO_NOTHING)
															   .withRoleARN("myarn")
	);
	Mockito.verify(this.eventPrinter).waitAndPrintStackEvents(Mockito.eq("foo"), Mockito.any(Waiter.class), Mockito.eq(PollConfiguration.DEFAULT));
	Assertions.assertThat(outputs).containsEntry("bar", "baz").containsEntry("jenkinsStackUpdateStatus", "true");
}
 

private Boolean isStackExist(AmazonCloudFormationRetryClient cfRetryClient, String cFStackName, DescribeStacksRequest describeStacksRequest) {
    try {
        cfRetryClient.describeStacks(describeStacksRequest);
    } catch (AmazonServiceException e) {
        if (!e.getErrorMessage().contains(cFStackName + " does not exist")) {
            throw e;
        }
        throw new ActionFailedException("Stack not exists");
    }
    return Boolean.TRUE;
}
 

private CreatedCloudNetwork getCreatedNetworkWithPolling(NetworkCreationRequest networkRequest, AwsCredentialView credentialView,
        AmazonCloudFormationRetryClient cloudFormationRetryClient, List<SubnetRequest> subnetRequests) {

    AmazonCloudFormationClient cfClient = awsClient.createCloudFormationClient(credentialView, networkRequest.getRegion().value());
    Waiter<DescribeStacksRequest> creationWaiter = cfClient.waiters().stackCreateComplete();
    DescribeStacksRequest stackRequestWithStackId = new DescribeStacksRequest().withStackName(networkRequest.getStackName());
    EnvironmentCancellationCheck environmentCancellationCheck = new EnvironmentCancellationCheck(networkRequest.getEnvId(), networkRequest.getEnvName());

    run(creationWaiter, stackRequestWithStackId,
            environmentCancellationCheck);

    return getCreatedCloudNetwork(cloudFormationRetryClient, networkRequest, subnetRequests);
}
 

@Override
public void deleteNetworkWithSubnets(NetworkDeletionRequest networkDeletionRequest) {
    if (!networkDeletionRequest.isExisting()) {
        AwsCredentialView credentialView = new AwsCredentialView(networkDeletionRequest.getCloudCredential());
        AmazonCloudFormationRetryClient cloudFormationRetryClient = getCloudFormationRetryClient(credentialView, networkDeletionRequest.getRegion());
        DeleteStackRequest deleteStackRequest = new DeleteStackRequest();
        deleteStackRequest.setStackName(networkDeletionRequest.getStackName());
        cloudFormationRetryClient.deleteStack(deleteStackRequest);
        AmazonCloudFormationClient cfClient = awsClient.createCloudFormationClient(credentialView, networkDeletionRequest.getRegion());
        Waiter<DescribeStacksRequest> deletionWaiter = cfClient.waiters().stackDeleteComplete();
        LOGGER.debug("CloudFormation stack deletion request sent with stack name: '{}' ", networkDeletionRequest.getStackName());
        DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest().withStackName(networkDeletionRequest.getStackName());
        run(deletionWaiter, describeStacksRequest, null);
    }
}
 

@Override
public void validate(AuthenticatedContext ac, CloudStack cloudStack) {
    AwsCredentialView credentialView = new AwsCredentialView(ac.getCloudCredential());
    String regionName = ac.getCloudContext().getLocation().getRegion().value();
    AmazonCloudFormationRetryClient cfClient = awsClient.createCloudFormationRetryClient(credentialView, regionName);
    String cFStackName = cfStackUtil.getCfStackName(ac);
    try {
        cfClient.describeStacks(new DescribeStacksRequest().withStackName(cFStackName));
        throw new CloudConnectorException(String.format("Stack is already exists with the given name: %s", cFStackName));
    } catch (AmazonServiceException ignored) {

    }
}
 

@Test
public void testCreateNewNetworkWithSubnetsShouldCreateTheNetworkAndSubnets() {
    String networkCidr = "0.0.0.0/16";
    Set<NetworkSubnetRequest> subnets = Set.of(new NetworkSubnetRequest("1.1.1.1/8", PUBLIC), new NetworkSubnetRequest("1.1.1.2/8", PUBLIC));
    AmazonCloudFormationRetryClient cloudFormationRetryClient = mock(AmazonCloudFormationRetryClient.class);
    AmazonServiceException amazonServiceException = new AmazonServiceException("does not exist");
    amazonServiceException.setStatusCode(400);
    when(cloudFormationRetryClient.describeStacks(any(DescribeStacksRequest.class))).thenThrow(amazonServiceException);
    AmazonCloudFormationClient cfClient = mock(AmazonCloudFormationClient.class);
    AmazonEC2Client ec2Client = mock(AmazonEC2Client.class);
    Map<String, String> output = createOutput();
    NetworkCreationRequest networkCreationRequest = createNetworkRequest(networkCidr, subnets);
    List<SubnetRequest> subnetRequestList = createSubnetRequestList();
    Set<CreatedSubnet> createdSubnets = Set.of(new CreatedSubnet(), new CreatedSubnet(), new CreatedSubnet());

    when(awsClient.createAccess(any(), any())).thenReturn(ec2Client);
    when(awsSubnetRequestProvider.provide(ec2Client, new ArrayList<>(subnets), new ArrayList<>(subnets))).thenReturn(subnetRequestList);
    when(awsClient.createCloudFormationRetryClient(any(AwsCredentialView.class), eq(REGION.value()))).thenReturn(cloudFormationRetryClient);
    when(awsClient.createCloudFormationClient(any(AwsCredentialView.class), eq(REGION.value()))).thenReturn(cfClient);
    when(cfClient.waiters()).thenReturn(cfWaiters);
    when(cfWaiters.stackCreateComplete()).thenReturn(creationWaiter);
    when(cfStackUtil.getOutputs(NETWORK_ID, cloudFormationRetryClient)).thenReturn(output);
    when(awsCreatedSubnetProvider.provide(output, subnetRequestList, true)).thenReturn(createdSubnets);

    CreatedCloudNetwork actual = underTest.createNetworkWithSubnets(networkCreationRequest);

    verify(awsClient).createCloudFormationRetryClient(any(AwsCredentialView.class), eq(REGION.value()));
    verify(awsNetworkCfTemplateProvider).provide(networkCreationRequest, subnetRequestList);
    verify(awsClient).createCloudFormationClient(any(AwsCredentialView.class), eq(REGION.value()));
    verify(creationWaiter, times(1)).run(any());
    verify(awsTaggingService).prepareCloudformationTags(any(), any());
    verify(cloudFormationRetryClient).createStack(any(CreateStackRequest.class));
    verify(cfStackUtil).getOutputs(NETWORK_ID, cloudFormationRetryClient);
    assertEquals(VPC_ID, actual.getNetworkId());
    assertEquals(NUMBER_OF_SUBNETS, actual.getSubnets().size());
}
 

private static boolean stackExists(AmazonCloudFormation client, String stackName) {
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest();
    describeStacksRequest.setStackName(stackName);
    try {
        client.describeStacks(describeStacksRequest);
        return true;
    } catch (AmazonServiceException e) {
        return false;
    }
}
 

private static StackStatus stackStatus(AmazonCloudFormation client, String stackName) {
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest();
    describeStacksRequest.setStackName(stackName);
    // describeStacks (with stack name specified) will return list of size 1 if found
    // and throw AmazonServiceException if no stack with that name exists
    try {
        return StackStatus.fromValue(client.describeStacks(describeStacksRequest)
                .getStacks()
                .get(0)
                .getStackStatus());
    } catch (AmazonServiceException ase) {
        return null;
    }
}
 

@Test
public void stackExists() {
	TaskListener taskListener = Mockito.mock(TaskListener.class);
	Mockito.when(taskListener.getLogger()).thenReturn(System.out);
	AmazonCloudFormation client = Mockito.mock(AmazonCloudFormation.class);
	CloudFormationStack stack = new CloudFormationStack(client, "foo", taskListener);
	Mockito.when(client.describeStacks(new DescribeStacksRequest()
											   .withStackName("foo")
	)).thenReturn(new DescribeStacksResult()
						  .withStacks(new Stack()
						  )
	);
	Assertions.assertThat(stack.exists()).isTrue();
}
 

/**
 * Fetch cloud formation stack.
 *
 * @param temporaryCredentials the temporary credentials
 * @param skipRegions the skip regions
 * @param accountId the accountId
 * @param accountName the account name
 * @return the map
 */
public static Map<String,List<Stack>> fetchCloudFormationStack(BasicSessionCredentials temporaryCredentials, String skipRegions,String accountId,String accountName){
	AmazonCloudFormation cloudFormClient ;
	Map<String,List<Stack>> stacks = new LinkedHashMap<>();
	String expPrefix = InventoryConstants.ERROR_PREFIX_CODE+accountId + "\",\"Message\": \"Exception in fetching info for resource in specific region\" ,\"type\": \"Stack\" , \"region\":\"" ;
	for(Region region : RegionUtils.getRegions()){
		try{
			if(!skipRegions.contains(region.getName())){
				List<Stack> stacksTemp = new ArrayList<>();
				String nextToken = null;
				cloudFormClient = AmazonCloudFormationClientBuilder.standard().
						 withCredentials(new AWSStaticCredentialsProvider(temporaryCredentials)).withRegion(region.getName()).build();
				DescribeStacksResult describeResult ;
				do{
					describeResult =  cloudFormClient.describeStacks(new DescribeStacksRequest().withNextToken(nextToken));
					stacksTemp.addAll(describeResult.getStacks());
					nextToken = describeResult.getNextToken();
				}while(nextToken!=null);

				if(! stacksTemp.isEmpty() ){
					log.debug(InventoryConstants.ACCOUNT + accountId +" Type : Cloud Formation Stack "+region.getName() + " >> " + stacksTemp.size());
					stacks.put(accountId+delimiter+accountName+delimiter+region.getName(), stacksTemp);
				}
			}
		}catch(Exception e){
			log.warn(expPrefix+ region.getName()+InventoryConstants.ERROR_CAUSE +e.getMessage()+"\"}");
			ErrorManageUtil.uploadError(accountId,region.getName(),"stack",e.getMessage());
		}
	}
	return stacks;
}
 

public boolean stackExists(String stackName){
    LOGGER.info("Check if stack exists or not :" + stackName);
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest();
    describeStacksRequest.setStackName(stackName);
    try {
        List<Stack> stacks = amazonCloudFormation.describeStacks(describeStacksRequest).getStacks();
    } catch (AmazonCloudFormationException e) {
        if (e.getErrorCode().equals("ValidationError")){
            return false;
        }
    }
    return true;
}
 

public Stack getStackByName(String stackName) {
    DescribeStacksRequest describeStacksRequest = new DescribeStacksRequest();
    describeStacksRequest.setStackName(stackName);
    List<Stack> stacksList = amazonCloudFormation.describeStacks(describeStacksRequest).getStacks();
    assertNotNull("stack list cannot be null", stacksList);
    assertEquals("only 1 stack is expected, but getting " + stacksList.size(), 1,
            stacksList.size());
    return stacksList.get(0);
}
 

/**
 * This method releases the provisioned AWS infrastructure.
 *
 * @param script            the script config
 * @param inputs
 * @return true or false to indicate the result of destroy operation.
 * @throws TestGridInfrastructureException when AWS error occurs in deletion process.
 * @throws InterruptedException            when there is an interruption while waiting for the result.
 */
private boolean doRelease(Script script, Properties inputs, TestPlan testPlan)
        throws TestGridInfrastructureException, InterruptedException, TestGridDAOException {
    Path configFilePath;
    String stackName = script.getName();
    String region = inputs.getProperty(AWS_REGION_PARAMETER);
    configFilePath = TestGridUtil.getConfigFilePath();
    AmazonCloudFormation stackdestroy = AmazonCloudFormationClientBuilder.standard()
            .withCredentials(new PropertiesFileCredentialsProvider(configFilePath.toString()))
            .withRegion(region)
            .build();
    DeleteStackRequest deleteStackRequest = new DeleteStackRequest();
    deleteStackRequest.setStackName(stackName);
    stackdestroy.deleteStack(deleteStackRequest);
    logger.info(StringUtil.concatStrings("Stack : ", stackName, " is handed over for deletion!"));

    //Notify AWSResourceManager about stack destruction to release acquired resources
    AWSResourceManager awsResourceManager = new AWSResourceManager();
    awsResourceManager.notifyStackDeletion(testPlan, script, region);

    boolean waitForStackDeletion = Boolean
            .parseBoolean(getProperty(ConfigurationProperties.WAIT_FOR_STACK_DELETION));
    if (waitForStackDeletion) {
        logger.info(StringUtil.concatStrings("Waiting for stack : ", stackName, " to delete.."));
        Waiter<DescribeStacksRequest> describeStacksRequestWaiter = new
                AmazonCloudFormationWaiters(stackdestroy).stackDeleteComplete();
        try {
            describeStacksRequestWaiter.run(new WaiterParameters<>(new DescribeStacksRequest()
                    .withStackName(stackName)));
        } catch (WaiterUnrecoverableException e) {

            throw new TestGridInfrastructureException("Error occurred while waiting for Stack :"
                                                      + stackName + " deletion !");
        }
    }
    return true;
}
 

public Map<String, String> describeOutputs() {
	DescribeStacksResult result = this.client.describeStacks(new DescribeStacksRequest().withStackName(this.stack));
	Stack cfnStack = result.getStacks().get(0);
	Map<String, String> map = new HashMap<>();
	for (Output output : cfnStack.getOutputs()) {
		map.put(output.getOutputKey(), output.getOutputValue());
	}
	return map;
}