Use DeleteDBClusterParameterGroup
with an Amazon SDK
The following code examples show how to use DeleteDBClusterParameterGroup
.
Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example:
- .NET
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- Amazon SDK for .NET
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. /// <summary> /// Delete a particular parameter group by name. /// </summary> /// <param name="groupName">The name of the parameter group.</param> /// <returns>True if successful.</returns> public async Task<bool> DeleteClusterParameterGroupByNameAsync(string groupName) { var request = new DeleteDBClusterParameterGroupRequest { DBClusterParameterGroupName = groupName, }; var response = await _amazonRDS.DeleteDBClusterParameterGroupAsync(request); return response.HttpStatusCode == System.Net.HttpStatusCode.OK; }
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For API details, see DeleteDBClusterParameterGroup in Amazon SDK for .NET API Reference.
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- C++
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- SDK for C++
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. Aws::Client::ClientConfiguration clientConfig; // Optional: Set to the AWS Region (overrides config file). // clientConfig.region = "us-east-1"; Aws::RDS::RDSClient client(clientConfig); Aws::RDS::Model::DeleteDBClusterParameterGroupRequest request; request.SetDBClusterParameterGroupName(parameterGroupName); Aws::RDS::Model::DeleteDBClusterParameterGroupOutcome outcome = client.DeleteDBClusterParameterGroup(request); if (outcome.IsSuccess()) { std::cout << "The DB parameter group was successfully deleted." << std::endl; } else { std::cerr << "Error with Aurora::DeleteDBClusterParameterGroup. " << outcome.GetError().GetMessage() << std::endl; result = false; }
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For API details, see DeleteDBClusterParameterGroup in Amazon SDK for C++ API Reference.
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- Go
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- SDK for Go V2
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. import ( "context" "errors" "log" "github.com/aws/aws-sdk-go-v2/aws" "github.com/aws/aws-sdk-go-v2/service/rds" "github.com/aws/aws-sdk-go-v2/service/rds/types" ) type DbClusters struct { AuroraClient *rds.Client } // DeleteParameterGroup deletes the named DB cluster parameter group. func (clusters *DbClusters) DeleteParameterGroup(ctx context.Context, parameterGroupName string) error { _, err := clusters.AuroraClient.DeleteDBClusterParameterGroup(ctx, &rds.DeleteDBClusterParameterGroupInput{ DBClusterParameterGroupName: aws.String(parameterGroupName), }) if err != nil { log.Printf("Couldn't delete parameter group %v: %v\n", parameterGroupName, err) return err } else { return nil } }
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For API details, see DeleteDBClusterParameterGroup
in Amazon SDK for Go API Reference.
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- Java
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- SDK for Java 2.x
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. public static void deleteDBClusterGroup(RdsClient rdsClient, String dbClusterGroupName, String clusterDBARN) throws InterruptedException { try { boolean isDataDel = false; boolean didFind; String instanceARN; // Make sure that the database has been deleted. while (!isDataDel) { DescribeDbInstancesResponse response = rdsClient.describeDBInstances(); List<DBInstance> instanceList = response.dbInstances(); int listSize = instanceList.size(); didFind = false; int index = 1; for (DBInstance instance : instanceList) { instanceARN = instance.dbInstanceArn(); if (instanceARN.compareTo(clusterDBARN) == 0) { System.out.println(clusterDBARN + " still exists"); didFind = true; } if ((index == listSize) && (!didFind)) { // Went through the entire list and did not find the database ARN. isDataDel = true; } Thread.sleep(sleepTime * 1000); index++; } } DeleteDbClusterParameterGroupRequest clusterParameterGroupRequest = DeleteDbClusterParameterGroupRequest .builder() .dbClusterParameterGroupName(dbClusterGroupName) .build(); rdsClient.deleteDBClusterParameterGroup(clusterParameterGroupRequest); System.out.println(dbClusterGroupName + " was deleted."); } catch (RdsException e) { System.out.println(e.getLocalizedMessage()); System.exit(1); } }
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For API details, see DeleteDBClusterParameterGroup in Amazon SDK for Java 2.x API Reference.
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- Kotlin
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- SDK for Kotlin
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. @Throws(InterruptedException::class) suspend fun deleteDBClusterGroup( dbClusterGroupName: String, clusterDBARN: String, ) { var isDataDel = false var didFind: Boolean var instanceARN: String RdsClient { region = "us-west-2" }.use { rdsClient -> // Make sure that the database has been deleted. while (!isDataDel) { val response = rdsClient.describeDbInstances() val instanceList = response.dbInstances val listSize = instanceList?.size isDataDel = false didFind = false var index = 1 if (instanceList != null) { for (instance in instanceList) { instanceARN = instance.dbInstanceArn.toString() if (instanceARN.compareTo(clusterDBARN) == 0) { println("$clusterDBARN still exists") didFind = true } if (index == listSize && !didFind) { // Went through the entire list and did not find the database ARN. isDataDel = true } delay(slTime * 1000) index++ } } } val clusterParameterGroupRequest = DeleteDbClusterParameterGroupRequest { dbClusterParameterGroupName = dbClusterGroupName } rdsClient.deleteDbClusterParameterGroup(clusterParameterGroupRequest) println("$dbClusterGroupName was deleted.") } }
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For API details, see DeleteDBClusterParameterGroup
in Amazon SDK for Kotlin API reference.
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- Python
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- SDK for Python (Boto3)
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. class AuroraWrapper: """Encapsulates Aurora DB cluster actions.""" def __init__(self, rds_client): """ :param rds_client: A Boto3 Amazon Relational Database Service (Amazon RDS) client. """ self.rds_client = rds_client @classmethod def from_client(cls): """ Instantiates this class from a Boto3 client. """ rds_client = boto3.client("rds") return cls(rds_client) def delete_parameter_group(self, parameter_group_name): """ Deletes a DB cluster parameter group. :param parameter_group_name: The name of the parameter group to delete. :return: Data about the parameter group. """ try: response = self.rds_client.delete_db_cluster_parameter_group( DBClusterParameterGroupName=parameter_group_name ) except ClientError as err: logger.error( "Couldn't delete parameter group %s. Here's why: %s: %s", parameter_group_name, err.response["Error"]["Code"], err.response["Error"]["Message"], ) raise else: return response
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For API details, see DeleteDBClusterParameterGroup in Amazon SDK for Python (Boto3) API Reference.
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- Rust
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- SDK for Rust
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Note
There's more on GitHub. Find the complete example and learn how to set up and run in the Amazon Code Examples Repository
. pub async fn clean_up(self) -> Result<(), Vec<ScenarioError>> { let mut clean_up_errors: Vec<ScenarioError> = vec![]; // Delete the instance. rds.DeleteDbInstance. let delete_db_instance = self .rds .delete_db_instance( self.db_instance_identifier .as_deref() .expect("instance identifier"), ) .await; if let Err(err) = delete_db_instance { let identifier = self .db_instance_identifier .as_deref() .unwrap_or("Missing Instance Identifier"); let message = format!("failed to delete db instance {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance to delete let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_instances = self.rds.describe_db_instances().await; if let Err(err) = describe_db_instances { clean_up_errors.push(ScenarioError::new( "Failed to check instance state during deletion", &err, )); break; } let db_instances = describe_db_instances .unwrap() .db_instances() .iter() .filter(|instance| instance.db_cluster_identifier == self.db_cluster_identifier) .cloned() .collect::<Vec<DbInstance>>(); if db_instances.is_empty() { trace!("Delete Instance waited and no instances were found"); break; } match db_instances.first().unwrap().db_instance_status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but instances is in {status}"); continue; } None => { warn!("No status for DB instance"); break; } } } } // Delete the DB cluster. rds.DeleteDbCluster. let delete_db_cluster = self .rds .delete_db_cluster( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = delete_db_cluster { let identifier = self .db_cluster_identifier .as_deref() .unwrap_or("Missing DB Cluster Identifier"); let message = format!("failed to delete db cluster {identifier}"); clean_up_errors.push(ScenarioError::new(message, &err)); } else { // Wait for the instance and cluster to fully delete. rds.DescribeDbInstances and rds.DescribeDbClusters until both are not found. let waiter = Waiter::default(); while waiter.sleep().await.is_ok() { let describe_db_clusters = self .rds .describe_db_clusters( self.db_cluster_identifier .as_deref() .expect("cluster identifier"), ) .await; if let Err(err) = describe_db_clusters { clean_up_errors.push(ScenarioError::new( "Failed to check cluster state during deletion", &err, )); break; } let describe_db_clusters = describe_db_clusters.unwrap(); let db_clusters = describe_db_clusters.db_clusters(); if db_clusters.is_empty() { trace!("Delete cluster waited and no clusters were found"); break; } match db_clusters.first().unwrap().status() { Some("Deleting") => continue, Some(status) => { info!("Attempting to delete but clusters is in {status}"); continue; } None => { warn!("No status for DB cluster"); break; } } } } // Delete the DB cluster parameter group. rds.DeleteDbClusterParameterGroup. let delete_db_cluster_parameter_group = self .rds .delete_db_cluster_parameter_group( self.db_cluster_parameter_group .map(|g| { g.db_cluster_parameter_group_name .unwrap_or_else(|| DB_CLUSTER_PARAMETER_GROUP_NAME.to_string()) }) .as_deref() .expect("cluster parameter group name"), ) .await; if let Err(error) = delete_db_cluster_parameter_group { clean_up_errors.push(ScenarioError::new( "Failed to delete the db cluster parameter group", &error, )) } if clean_up_errors.is_empty() { Ok(()) } else { Err(clean_up_errors) } } pub async fn delete_db_cluster_parameter_group( &self, name: &str, ) -> Result<DeleteDbClusterParameterGroupOutput, SdkError<DeleteDBClusterParameterGroupError>> { self.inner .delete_db_cluster_parameter_group() .db_cluster_parameter_group_name(name) .send() .await } #[tokio::test] async fn test_scenario_clean_up() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| Ok(DescribeDbInstancesOutput::builder().build())); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| Ok(DescribeDbClustersOutput::builder().build())); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_ok()); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; } #[tokio::test] async fn test_scenario_clean_up_errors() { let mut mock_rds = MockRdsImpl::default(); mock_rds .expect_delete_db_instance() .with(eq("MockInstance")) .return_once(|_| Ok(DeleteDbInstanceOutput::builder().build())); mock_rds .expect_describe_db_instances() .with() .times(1) .returning(|| { Ok(DescribeDbInstancesOutput::builder() .db_instances( DbInstance::builder() .db_cluster_identifier("MockCluster") .db_instance_status("Deleting") .build(), ) .build()) }) .with() .times(1) .returning(|| { Err(SdkError::service_error( DescribeDBInstancesError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db instances error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster() .with(eq("MockCluster")) .return_once(|_| Ok(DeleteDbClusterOutput::builder().build())); mock_rds .expect_describe_db_clusters() .with(eq("MockCluster")) .times(1) .returning(|id| { Ok(DescribeDbClustersOutput::builder() .db_clusters( DbCluster::builder() .db_cluster_identifier(id) .status("Deleting") .build(), ) .build()) }) .with(eq("MockCluster")) .times(1) .returning(|_| { Err(SdkError::service_error( DescribeDBClustersError::unhandled(Box::new(Error::new( ErrorKind::Other, "describe db clusters error", ))), Response::new(StatusCode::try_from(400).unwrap(), SdkBody::empty()), )) }); mock_rds .expect_delete_db_cluster_parameter_group() .with(eq("MockParamGroup")) .return_once(|_| Ok(DeleteDbClusterParameterGroupOutput::builder().build())); let mut scenario = AuroraScenario::new(mock_rds); scenario.db_cluster_identifier = Some(String::from("MockCluster")); scenario.db_instance_identifier = Some(String::from("MockInstance")); scenario.db_cluster_parameter_group = Some( DbClusterParameterGroup::builder() .db_cluster_parameter_group_name("MockParamGroup") .build(), ); tokio::time::pause(); let assertions = tokio::spawn(async move { let clean_up = scenario.clean_up().await; assert!(clean_up.is_err()); let errs = clean_up.unwrap_err(); assert_eq!(errs.len(), 2); assert_matches!(errs.first(), Some(ScenarioError {message, context: _}) if message == "Failed to check instance state during deletion"); assert_matches!(errs.get(1), Some(ScenarioError {message, context: _}) if message == "Failed to check cluster state during deletion"); }); tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Instances tokio::time::advance(Duration::from_secs(1)).await; // Wait for first Describe Cluster tokio::time::advance(Duration::from_secs(1)).await; // Wait for second Describe Cluster tokio::time::resume(); let _ = assertions.await; }
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For API details, see DeleteDBClusterParameterGroup
in Amazon SDK for Rust API reference.
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For a complete list of Amazon SDK developer guides and code examples, see Using this service with an Amazon SDK. This topic also includes information about getting started and details about previous SDK versions.