AWS Cloudformation添加确认密码参数

Question

I am creating a cloudformation template on AWS and have successfully added the username and password parameter which is required as a user input. But is there any way to add "Confirm password" field as well ?

Answer 1

It finally worked after I specified 3 parameters - username, password, confirm password and then added the following rule section in the template:

JSON:

"Rules" : {
    "matchPasswords" : {
        "Assertions" : [
        {
            "Assert" : {"Fn::Equals":[{"Ref":"Password"},{"Ref":"ConfirmPassword"}]},
            "AssertDescription" : "Passwords do not match"
        }
        ]
    }}

YAML:

Rules:
  'matchPasswords':
    Assertions:
      - Assert:
          Fn::Equals:
            - Ref: 'Password'
            - Ref: 'ConfirmPassword'
        AssertDescription: 'Passwords do not match'

Answer 2

You could accept 3 parameters - username, password, confirm password. Specify a condition like "password-match" and then, add this condition to all your resources. So if the passwords don't match, nothing will be created.

Check this page to understand the use of conditions better https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/conditions-section-structure.html