Guidance on how to generate YAML stream sub to multi file layout.

The general idea:

{
  'stream.yaml': [],
  'normal.json`: {},
}

Is this possible? I tried using the stdlib functions for YAML and YAML stream, but output ends up with a lot of \n chars to stream.yaml.

related: kubernetes/kubeadm#1502

[sbarzowski]

The reason you get \n in the output is that std.manifestYamlDoc and similar functions simply return strings. Jsonnet by default applies applies then JSON manifestation to on the final result. So you get "double escaping".

To output multiple files, some as JSON some as YAML you can use stdlib library and pass "raw string" option to Jsonnet command, so that automatic JSON manifestation is not applied. Take a look at the example below.

files.jsonnet:

{
  'foo.json': std.manifestJson({bar: 'a'}),
  'some.yaml': std.manifestYamlDoc({something: ['a', 'b', 'c']})
}

the command to run:

jsonnet files.jsonnet -m . -S

Of course you are not limited to std.manifestJson and other standard functions - any string producing function will do, so you can output any format (when you write or find an appropriate function, but the point is there is nothing special about std.manifestJson).

Thanks for the help, @sbarzowski! I'll give this a try and report back.

I ended up using std.manifestYamlStream(value) as the function, which worked perfectly.

This is so awesome! Thanks again!