krakendio / krakend-flexibleconfig

Extended features for KrakenD config parsers

krakend-flexibleconfig

Extended features for KrakenD config parsers

krakend-flexibleconfig's Issues

Scan the templates recursively with flexible config (subfolders)

It would be nice if we could organize the templates in subfolders, for example:
.
├── templates
│ ├── contextA
│ │ └── endpoints.tmpl
│ │
│ └── contextB
│ │ └── anotherFolder
│ │ │ └── anotherFolderEndpoints.tmpl
│ │ │
│ │ └── serveiceb.tmpl

I am not allowed to do it at this moment because the flexible configuration just scans the root of the path FC_TEMPLATES

The workaround I am using is to copy recursively the templates from the subfolders to the root of the templates folder when creating the docker image.

Thank you, keep up the great work guys!

recursive call

I have 4 files
a.json

{
 "b": {{ include "b.json" }}
}

b.json

{
 "c:" {{ include "c.json" }},
 "d": {{ include "d.json" }}
}

c.json

{
      "id": 1,
      "name": 1,
      "name1": 1
   }

d.json

{
      "id": 2,
      "name": 2,
      "name1": 2
   }

how about this case?

Flexible configuration to scan a settings folder recursively

We are using flexible configuration in such a way settings are grouped by different criteria such as API version, domain...

Ideally the flexible configuration should be able to scan a folder in a recursive manner.

root
│   settings_01.json    
│
└───folder1
│   │   settings_01.json
│   │   settings_02.json
│   │   ...
│   
└───folder2
    │   settings_01.json
    │   settings_02.json

Keys added to the map may include a prefix with a path relative to the root folder such as folder1.settings_01 or folder2.settings_01 to guarantee uniqueness.

Marshal extra_config along with additional items

Consider the following json group, i would like to add a auth validator for the following endpoint, this auth validator is placed in another template file auth.tmpl

endpoint.json

{
    "group": [
        {
            "endpoint": "/nick/{nick}",
            "method": "GET",
            "input_query_strings": [],
            "auth": "validator",        // for adding auth.
            "extra_config": {
                "validation/cel": [       // HOW DO I ADD THIS BLOCK ALONG WITH MY AUTH TEMPLATE?
                    {
                        "check_expr": "req_params.Nick.matches('k.*')"
                    }
                ]
            },
            "backend": [
                {
                    "extra_config": {},
                    "url_pattern": "/demo",
                    "method": "GET",
                    "host": [
                        "http://service-a:8080"
                    ]
                }
            ],
            "input_headers": [
                "Content-Type"
            ]
        }
    ]
}

auth.tmpl

"auth/validator": {
  "alg": "HS256",
  "jwk_local_path": "symmetric.json",
  "roles_key": "roles",
  "roles": [
    "user",
    "admin"
  ],
  "disable_jwk_security": true
}

krakend.tmpl

{
  "$schema": "https://www.krakend.io/schema/v3.json",
  "version": 3,
  "port": 8080,
  "output_encoding": "json",
  "name": "API",
  "endpoints": [
    {{- $first := true -}}
    {{- range $idx, $setting := keys . -}}             // range over all settings files
      {{- range $i, $a :=  (index $ $setting) -}}    // range over all files in settings folder
        {{- range $j, $b :=  . -}}
          {{- if $first -}}
            {{$first = false}}
          {{- else -}},
          {{- end -}}
          {
            "endpoint": "{{ $b.endpoint }}",
            "method": "{{ $b.method }}",
            "input_query_strings": {{ marshal $b.input_query_strings }},
            "extra_config": {
            {{- if $b.auth -}}
              {{- if eq $b.auth "signer" -}}
                {{ include "auth_signer.tmpl" }}
              {{- else if eq $b.auth "validator" -}}
                {{ include "auth.tmpl" }}
              {{- else if eq $b.auth "none" -}}
              {{- end -}}
            {{- end -}}
            },
            "backend": {{ marshal $b.backend }},
            "input_headers": {{ marshal $b.input_headers}}
          }
        {{- end -}}
      {{- end -}}
    {{- end -}}
    ], 
    "extra_config": { 
    {{- include "telemetry.tmpl" -}},
    {{- include "headers.tmpl" -}},
    {{- include "token_revoker.tmpl" -}},
    {{- include "rate_limit_backend.tmpl" -}}
  }
}

my folder structure is as follows

krakend.tmpl
config
|--partials
    |--auth.tmpl
    |--auth_signer.tmpl
|--settings
    |--endpoint.json
    |--endpoint-2.json
    |--endpoint-3.json

Now my question is how do i add other items to extra_config such as following

"validation/json-schema": {
            "type": "object"
        }

I am unable to use {{ marshal $b.extra_config }} since I'm already adding auth to the same extra_config object. Pleas help