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Cloud Computing · Intermediate

AWS Systems Manager Parameter Store

Systems Manager capability for hierarchical storage of configuration data and secrets as plaintext or KMS-encrypted SecureString values.

Definition

Parameter Store holds configuration values and secrets with versioning, IAM access control and CloudTrail auditing. Standard parameters are free; advanced parameters support larger sizes and policies such as expiration. Unlike Secrets Manager, it has no built-in automatic rotation.

Example

aws ssm get-parameter --name /prod/db/endpoint retrieves a configuration value at application startup.

Exam tip

Choose Secrets Manager when automatic rotation of database credentials is required; Parameter Store is cheaper for configuration data.

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