@aws-cdk/aws-docdb v1.204.0
Amazon DocumentDB Construct Library
AWS CDK v1 has reached End-of-Support on 2023-06-01. This package is no longer being updated, and users should migrate to AWS CDK v2.
For more information on how to migrate, see the Migrating to AWS CDK v2 guide.
doc: https://docs.aws.amazon.com/cdk/v2/guide/migrating-v2.html
Starting a Clustered Database
To set up a clustered DocumentDB database, define a DatabaseCluster
. You must
always launch a database in a VPC. Use the vpcSubnets
attribute to control whether
your instances will be launched privately or publicly:
declare const vpc: ec2.Vpc;
const cluster = new docdb.DatabaseCluster(this, 'Database', {
masterUser: {
username: 'myuser', // NOTE: 'admin' is reserved by DocumentDB
excludeCharacters: '\"@/:', // optional, defaults to the set "\"@/" and is also used for eventually created rotations
secretName: '/myapp/mydocdb/masteruser', // optional, if you prefer to specify the secret name
},
instanceType: ec2.InstanceType.of(ec2.InstanceClass.R5, ec2.InstanceSize.LARGE),
vpcSubnets: {
subnetType: ec2.SubnetType.PUBLIC,
},
vpc,
});
By default, the master password will be generated and stored in AWS Secrets Manager with auto-generated description.
Your cluster will be empty by default.
Connecting
To control who can access the cluster, use the .connections
attribute. DocumentDB databases have a default port, so
you don't need to specify the port:
declare const cluster: docdb.DatabaseCluster;
cluster.connections.allowDefaultPortFromAnyIpv4('Open to the world');
The endpoints to access your database cluster will be available as the .clusterEndpoint
and .clusterReadEndpoint
attributes:
declare const cluster: docdb.DatabaseCluster;
const writeAddress = cluster.clusterEndpoint.socketAddress; // "HOSTNAME:PORT"
If you have existing security groups you would like to add to the cluster, use the addSecurityGroups
method. Security
groups added in this way will not be managed by the Connections
object of the cluster.
declare const vpc: ec2.Vpc;
declare const cluster: docdb.DatabaseCluster;
const securityGroup = new ec2.SecurityGroup(this, 'SecurityGroup', {
vpc,
});
cluster.addSecurityGroups(securityGroup);
Deletion protection
Deletion protection can be enabled on an Amazon DocumentDB cluster to prevent accidental deletion of the cluster:
declare const vpc: ec2.Vpc;
const cluster = new docdb.DatabaseCluster(this, 'Database', {
masterUser: {
username: 'myuser',
},
instanceType: ec2.InstanceType.of(ec2.InstanceClass.R5, ec2.InstanceSize.LARGE),
vpcSubnets: {
subnetType: ec2.SubnetType.PUBLIC,
},
vpc,
deletionProtection: true, // Enable deletion protection.
});
Rotating credentials
When the master password is generated and stored in AWS Secrets Manager, it can be rotated automatically:
declare const cluster: docdb.DatabaseCluster;
cluster.addRotationSingleUser(); // Will rotate automatically after 30 days
example of setting up master password rotation for a cluster
The multi user rotation scheme is also available:
import * as secretsmanager from '@aws-cdk/aws-secretsmanager';
declare const myImportedSecret: secretsmanager.Secret;
declare const cluster: docdb.DatabaseCluster;
cluster.addRotationMultiUser('MyUser', {
secret: myImportedSecret, // This secret must have the `masterarn` key
});
It's also possible to create user credentials together with the cluster and add rotation:
declare const cluster: docdb.DatabaseCluster;
const myUserSecret = new docdb.DatabaseSecret(this, 'MyUserSecret', {
username: 'myuser',
masterSecret: cluster.secret,
});
const myUserSecretAttached = myUserSecret.attach(cluster); // Adds DB connections information in the secret
cluster.addRotationMultiUser('MyUser', { // Add rotation using the multi user scheme
secret: myUserSecretAttached, // This secret must have the `masterarn` key
});
Note: This user must be created manually in the database using the master credentials. The rotation will start as soon as this user exists.
See also @aws-cdk/aws-secretsmanager for credentials rotation of existing clusters.
Audit and profiler Logs
Sending audit or profiler needs to be configured in two places:
- Check / create the needed options in your ParameterGroup for audit and profiler logs.
- Enable the corresponding option(s) when creating the
DatabaseCluster
:
import * as iam from '@aws-cdk/aws-iam';
import * as logs from'@aws-cdk/aws-logs';
declare const myLogsPublishingRole: iam.Role;
declare const vpc: ec2.Vpc;
const cluster = new docdb.DatabaseCluster(this, 'Database', {
masterUser: {
username: 'myuser',
},
instanceType: ec2.InstanceType.of(ec2.InstanceClass.R5, ec2.InstanceSize.LARGE),
vpcSubnets: {
subnetType: ec2.SubnetType.PUBLIC,
},
vpc,
exportProfilerLogsToCloudWatch: true, // Enable sending profiler logs
exportAuditLogsToCloudWatch: true, // Enable sending audit logs
cloudWatchLogsRetention: logs.RetentionDays.THREE_MONTHS, // Optional - default is to never expire logs
cloudWatchLogsRetentionRole: myLogsPublishingRole, // Optional - a role will be created if not provided
});
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