How to add a dynamic set of keys to a new yaml file?

[gangofnuns]

Describe the bug
I've been Googling for awhile, and can't find a way to do this.
It seems like it should be simple, so I am missing something obvious.

I want to create a yaml file with yaml keys defined dynamically at run time.
Example:
environment variables: foo bar baz

Result in yaml:
.this.foo:
-- stuff here
.this.bar:
-- stuff here
.this.baz:
-- stuff here

The tool is very complicated, but I cannot seem to find an example of dynamic key creation
that would apply to this simple scenario. Hoping there is an easy answer I've overlooked.

Input Yaml
NONE

[gangofnuns]

reopening as v4 issue.

[gangofnuns]

Describe the bug
I've been Googling for awhile, and can't find a way to do this.
It seems like it should be simple, so I am missing something obvious.

I want to create a yaml file with yaml keys defined dynamically at run time.
Example:
environment variables: foo bar baz

Result in yaml:
.this.foo:
-- foo stuff here
.this.bar:
-- bar stuff here
.this.baz:
-- baz stuff here

The tool is very feature rich, but I cannot seem to find a simple example of dynamic key creation.
Hoping there is an easy answer I've overlooked.

[gangofnuns]

• [v4]

[mikefarah]

I think you are looking for a variation of this https://mikefarah.gitbook.io/yq/operators/env-variable-operators#dynamic-key-lookup-with-environment-variable

You can create entries like:

foo=cat ./yq -n '.[strenv(foo)] = "meow"'
cat: meow

[mikefarah]

https://mikefarah.gitbook.io/yq/operators/env-variable-operators#dynamically-update-a-path-from-an-environment-variable

may also be of interest