fluffycore-mock-oauth2

Have you ever wanted a dev oauth2 server just for client_credentials flow? Also known as Machine-2-Machine tokens.
This project has a simple docker-compose and a secure traefik configuration.

docker-compose that hosts a static configurable client_credentials flow oauth server.

Docker-Compose

docker-compose up - ./docker-compose.yml -d

Health Check

The healthcheck is self contained in the dockerfile.
Look at the whoami service's depends_on: entry.

Client Config

example.

{
	"claims": {
		"permissions": ["read", "write"],
		"sub": "client1"
	},
	"client_id": "client1",
	"client_secret": "secret",
	"expiration": 3600,
	"issuer": ""
}

If issuer is empty or nil then the issuer will be the the base url of the request.

i.e. http://host.docker.internal:8084, http://localhost:8084, etc

TODO: test with traefik reverse proxy.

 curl --location 'http://host.docker.internal:8084/oauth/token' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--header 'Authorization: Basic Y2xpZW50MTpzZWNyZXQ=' \
--data-urlencode 'grant_type=client_credentials'

The jwt contents.

{
  "client_id": "client1",
  "exp": 1699310389,
  "iat": 1699306789,
  "iss": "http://host.docker.internal:8084",
  "permissions": [
    "read",
    "write"
  ],
  "sub": "client1"
}

You can set your issuer to whatever you like.

Traefik

# If it's the firt install of mkcert, run
mkcert -install

# Generate certificate for domain "docker.localhost"

mkcert -cert-file certs/local-cert.pem -key-file certs/local-key.pem "docker.localhost" "*.docker.localhost"  

docker-compose up - ./docker-compose.traefik.yml -d

links

traefik

whoami

sts-discovery

{
    "issuer": "http://sts.docker.localhost",
    "jwks_uri": "http://sts.docker.localhost/.well-known/jwks",
    "token_endpoint": "http://sts.docker.localhost/oauth/token",
    "scopes_supported": [
        "offline_access"
    ],
    "grant_types_supported": [
        "client_credentials"
    ],
    "token_endpoint_auth_methods_supported": [
        "client_secret_basic",
        "client_secret_post"
    ]
}

sts-jwks

{
    "keys": [
        {
            "alg": "ES256",
            "crv": "P-256",
            "kid": "0b2cd2e54c924ce89f010f242862367d",
            "kty": "EC",
            "use": "sig",
            "x": "YMrUm_S5-d-euQHrrzQMWJSFafSYcgUE0RYjfI7sErI",
            "y": "u-YUnRNGozzTF2mgxt_ecw9fFcY7Jqj01qJte53FZ58"
        }
    ]
}