[Yaml] how to manage

Certainly! In YAML, you can extend or inherit properties from one YAML file to another using a feature called "anchors" and "aliases". This allows you to reuse and extend configurations. Here's how it works:

1. Anchors (&): Used to mark a node for future reference.

2. Aliases (*): Used to refer to an anchored node.

3. <<: (Merge Key): Used to merge the contents of one map into another.

Here's an example to illustrate:

1. Base YAML file (base.yml):

yamlCopybase: &base
  name: John Doe
  age: 30
  address:
    city: New York
    country: USA

1. Extended YAML file (extended.yml):

yamlCopyperson1:
  <<: *base
  job: Developer

person2:
  <<: *base
  name: Jane Smith
  address:
    <<: *base.address
    city: Los Angeles

In this example:

• &base creates an anchor named "base" in the base.yml file.

• <<: *base in extended.yml merges all properties from the "base" anchor.

• person1 inherits all properties from base and adds a new "job" property.

• person2 inherits from base, overrides the "name", and extends the "address".

When processed, extended.yml would effectively become:

yamlCopyperson1:
  name: John Doe
  age: 30
  address:
    city: New York
    country: USA
  job: Developer

person2:
  name: Jane Smith
  age: 30
  address:
    city: Los Angeles
    country: USA

This technique is particularly useful in complex configurations where you want to reuse common settings while allowing for specific overrides or extensions.

Note: The exact behavior might vary slightly depending on the YAML parser being used, but most modern parsers support this functionality.