[AWS] Systems Manager

Systems Manager (formerly known as SSM) manages EC2 instances at scale (EC2 fleet).

AWS Systems Manager

  • An agent software is installed on each VM.
  • Run command is used to install, patch, or uninstall software.
  • You can run a command to multiple instances using Resource groups.

Systems Manager Parameter Store

Parameter Store provides secure serverless storage for the management of configuration data and secrets.

  • You can store confidential data such as passwords, database strings, and license codes as parameter values.
  • Values can be saved as plain text or encrypted values (using the key from KMS).
  • Parameters are stored in hierarchies.
    • e.g. /prod/db/aurora/connection, /dev/db/aurora/connection
  • The service can be used with EC2, ECS, or Lambda.

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