2019-07-01-wondering-way-to-merge-yaml.md

title	date	tags
Wondering Way to Merge YAML	2019-07-01 23:30:00 +0900	yaml

With merge, YAML can be more readable and easy to configure.

# some-app-config.yaml
default: &default
  server: example.com
  port: 8080
  user: test-foo
  passwprd: test-bar

environments:
  test:
    <<: *default
  production:
    <<: *default
    user: foo
    password: bar

But this is not good if "some-app" would need the config for default key.

We do not know all config-keys of "some-app", so what we can do is getting key of &default more unique that (probably) some-app does not use it.

my-awsome-default: &default

# or

_default: &default

Is it beautiful way to be underscored?