Systems Manager Parameter Store provides secure, hierarchical storage for configuration data management and secrets management.
You can store data such as passwords, database strings, Amazon Machine Image (AMI) IDs, and license codes as parameter values.
You can store values as plain text or encrypted data.
You can reference Systems Manager parameters in your scripts, commands, SSM documents, and configuration and automation workflows by using the unique name that you specified when you created the parameter.
You can associate an alias for versions of your parameter by creating labels.
Labels can help you remember the purpose of a parameter version when there are multiple versions.
Parameter policies help you manage a growing set of parameters by enabling you to assign specific criteria to a parameter such as an expiration date or time to live.
Especially helpful in forcing you to update or delete passwords and configuration data stored in Parameter Store.
Parameter Store offers the following types of policies: Expiration, ExpirationNotification, and NoChangeNotification.