[FEATURE] Allow per-component output inside target

[Moep90]

FEATURE

Whle wng with kapitan, I noticed that having many components inside a target can be tricky to overwatch. Therfore I would suggest to have some sort of per-component output flag.

Expected behavior

Current Situation

.
├── vault-agent-injector-bundle.yml
├── vault-agent-injector-rbac.yml
├── vault-agent-injector-service.yml
├── vault-bundle.yml
├── vault-config.yml
├── vault-csi-provider-bundle.yml
├── vault-csi-provider-rbac.yml
├── vault-namespace.yml
├── vault-rbac.yml
└── vault-service.yml

Future Idea

.
├── namespace.yml
├── vault
│   ├── vault-bundle.yml
│   ├── vault-config.yml
│   ├── vault-rbac.yml
│   └── vault-service.yml
├── vault-agent-injector
│   ├── vault-agent-injector-bundle.yml
│   ├── vault-agent-injector-rbac.yml
│   └── vault-agent-injector-service.yml
└── vault-csi-provider
    ├── vault-csi-provider-bundle.yml
    └── vault-csi-provider-rbac.yml

parameters:
  kapitan:
    dependencies:
    - type: git
      source: https://github.com/kapicorp/kapitan-reference.git
      ref: master
      subdir: components/generators/kubernetes
      output_path: components/generators/kubernetes
    compile:
    - output_path: manifests/${component_name} <---- PSEUDO
      input_type: kadet
      output_type: yml
      input_paths:
        - components/generators/kubernetes

[ademariag]

@ramaro by looking at https://github.com/kapicorp/kapitan/blob/097a711e515453e1acab380a16f3f4962f3b56e7/kapitan/inputs/kadet.py#L137, if item_key container a directory path, this should work?

So if I created an object with key "vault/vault-bundle" it should kind of work. Only thing needed would be to create the directory (and validate that we don't do anything nasty like ../../../etc/passwd and shit

[ramaro]

This should work but isn't great. We need to look better into better path traversal security before going forward with an official feature. Let me get back to you on that.

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