%YAML 1.2
---
version: 1.1

secret1:
  description: the first variable
  type: secret
  params:
    min_len: 10

secret2:
  description: the second variable
  type: secret
  params:
    max_len: 10
    forbidden_char:
      - $
      - ^
  default: value

secret3:
  description: the third variable
  type: secret
  params:
    max_len: 10
    forbidden_char:
      - $
  default: value
...