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generate_kms_password

Generate a password, then encrypt that password using an encryption context and a KMS key.

Assumptions/Requirements

  • The AWS CLI is already installed on your machine. See: https://aws.amazon.com/cli/
  • You've configured your CLI to have KMS access to an AWS Account. I like to use vault_exec, but use whatever works for you.
  • This was written on OSX, but should work on a Unix-based system

How to generate a password

Run the generate_password script

> ./bin/generate_kms_password <encryption_context> <kms_key>

Example:

> ./bin/generate_kms_password environment=dev,application=bookstore,username=admin alias/team_key

Files will be generated in your current directory. The plain text password is available in: password.plain_text - do not share this. The base64 encrypted password is in password.plain_text.encrypted_base64.

Adjust the password length

By default, the password will be 30 characters long. You can adjust it by setting the PASSWORD_LENGTH environment variable.

Example, 50 characters:

> PASSWORD_LENGTH=50 ./bin/generate_kms_password environment=dev,application=bookstore,username=admin alias/team_key