AWS Systems Manager Parameter Store

  • Component of AWS Systems Manager(ASM).
  • Secure serverless storage for configuration and secrets
  • Passwords
    • Database connection strings
    • License codes
    • API keys
  • values can be stored encrypted(KMS) or plaintext.
  • Separate data from source control.
  • Store parameters in hierarchies.
  • Track Versions
  • Set TTL to expire values such as passwords.
  • Use get parameters by path API call to retrive all parameters in a hierarchy.
    • /dev gives entire hierarchy under dev path
  • We can use parameter store in our cloud formation templates.
  • boto3 is aws SDK for python.
  • When we need to store parameters of a system.
  • This information needs to be passed to your EC2 instances, is as a bootstrap script.
  • For example, system administrator for a bank may need to store parameters used by the applications like license keys, database connection, information, user names and passwords, etc.
  • This information needs to be passed to you are EC2 instances as a bootstrap Script.
  • You maintain the confidentiality of the information and avoid hard coding parameters in your code.
  • Store confidential information
    • You can store passwords, database connection, strings, license codes, etc.
  • Plaintext or Encrypt it
    • We can store values as plain text or encrypt them.
  • Reference
    • We can reference our parameters using the parameter name (example in a bootstrap script).
  • Integrated with AWS services
    • You can use parameter store with EC2, cloud formation, lambda, code build, Code pipeline, and code deploy.

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