![]() ![]() ![]() The first role in the chain must be a role attached to the cluster. For more information, see Using IAM roles in the That allows it to pass its permissions to the previous chained role Turn, the role that passes permissions ( RoleB) must have a trust policy That allows it to assume the next chained role (for example, RoleB). A role thatĪssumes another role (for example, RoleA) must have a permissions policy To chain roles, you establish a trust relationship between the roles. Temporarily assumes RoleB to access the Amazon S3 bucket. For the duration of the COPY operation, RoleA ToĪccess the data in the Company B bucket, Company A runs a COPY command using an RoleB that's authorized to access the data in the Company B bucket. Company A creates an AWS service role for Amazon Redshift named The quota "Cluster IAM roles for Amazon Redshift to access other AWS services" inįor example, suppose Company A wants to access data in an Amazon S3 bucket thatīelongs to Company B. The maximum number of IAM roles that you can associate is subject to a quota. Each role in the chainĪssumes the next role in the chain, until the cluster assumes the role at the end of You can also grant cross-account access by chaining roles. Your cluster then temporarily assumes the chained role to access theĭata. Have access to the necessary resources, you can chain another role, possibly belonging If a role attached to your cluster doesn't When you attach a role to your cluster, your cluster can assume that role to accessĪmazon S3, Amazon Athena, AWS Glue, and AWS Lambda on your behalf. You can associate an IAM role with aĬluster when you create the cluster, or you add the role to an existing cluster.įor more information, see Associating IAM Information, see Restricting access to IAMĪssociate the role with your cluster. ![]() Specific regions, edit the trust relationship for the role. Restrict access to only specific users on specific clusters, or to clusters in The new role is available to all users on clusters that use the role. Redshift Spectrum, in addition to Amazon S3 access, addįor Role name, type a name for your role, for example Only the Amazon S3 buckets and key prefixes that Amazon Redshift requires.įor access to invoke Lambda functions for the CREATE EXTERNAL FUNCTION command, add AWSLambdaRole. Write operations, we recommend enforcing the least privileges and restricting to Restrict access to the desired bucket and prefix accordingly. Using COPY or UNLOAD, we suggest that you can create managed policies that The Attach permissions policy page appears.įor access to Amazon S3 using COPY, as an example, you can useĪmazonS3ReadOnlyAccess and append. Under Select your use case, choose Redshift - Customizable and then choose Next: Permissions. To create an IAM role to allow Amazon RedshiftĬhoose AWS service, and then choose Redshift. The values used in this section areĮxamples, you can choose values based on your needs. ![]() Services on your behalf, take the following steps. To create an IAM role to permit your Amazon Redshift cluster to communicate with other AWS To allow your Amazon Redshift cluster to access AWS services For information, see GRANT in the Amazon Redshift Database Developer Guide. In addition, a superuser can grant the ASSUMEROLE privilege to specific users and groups to provide access to a role for COPY and UNLOAD operations. See Authorizing COPY, UNLOAD, CREATE EXTERNALįUNCTION, and CREATE EXTERNAL SCHEMA operations using IAM roles. You also need to associate the role with your cluster and specify theĪmazon Resource Name (ARN) of the role when you run the Amazon Redshift command. The AWS Command Line Interface User Guide.įor AWS SDKs and tools, see Authenticate using long-term credentials in theįor AWS APIs, see Managing access keys forįollowing, find out how to create an IAM role with the appropriate permissions to access For the AWS CLI, see Authenticating using IAM user credentials in ![]()
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