Removes identity providers federation (#1736)

Removes the identity providers federation, and update the documentation for adding new identity providers, including ci-providers.

Ref #1111

Signed-off-by: Javan Lacerda <[email protected]>

config/identity/config.yaml

@@ -17,52 +17,76 @@ oidc-issuers:
     issuer-url: https://accounts.google.com
     client-id: sigstore
     type: email
+    contact: [email protected]
+    description: "Google OIDC auth"
   https://agent.buildkite.com:
     issuer-url: https://agent.buildkite.com
     client-id: sigstore
     type: buildkite-job
+    contact: [email protected]
+    description: "Buildkite Agent OIDC tokens for job identity"
   https://allow.pub:
     issuer-url: https://allow.pub
     client-id: sigstore
     type: spiffe
     spiffe-trust-domain: allow.pub
+    contact: [email protected]
+    description: "Server side signing support for the OCI registry vcr.pub"
   https://auth.eclipse.org/auth/realms/sigstore:
     issuer-url: https://auth.eclipse.org/auth/realms/sigstore
     client-id: sigstore
     type: email
+    contact: [email protected]
+    description: "Eclipse Foundation Production OIDC provider"
   https://dev.gitlab.org:
     issuer-url: https://dev.gitlab.org
     client-id: sigstore
     type: gitlab-pipeline
+    contact: [email protected]
+    description: "GitLab OIDC tokens for job identity"
   https://gitlab.archlinux.org:
     issuer-url: https://gitlab.archlinux.org
     client-id: sigstore
     type: gitlab-pipeline
+    contact: [email protected]
+    description: "GitLab OIDC tokens for job identity"
   https://gitlab.com:
     issuer-url: https://gitlab.com
     client-id: sigstore
     type: gitlab-pipeline
+    contact: [email protected]
+    description: "GitLab OIDC tokens for job identity"
   https://issuer.enforce.dev:
     issuer-url: https://issuer.enforce.dev
     client-id: sigstore
     type: chainguard-identity
+    contact: [email protected]
+    description: "Chainguard identity tokens"
   https://oauth2.sigstore.dev/auth:
     issuer-url: https://oauth2.sigstore.dev/auth
     client-id: sigstore
     type: email
     issuer-claim: $.federated_claims.connector_id
+    contact: [email protected]
+    description: "dex address for fulcio"
   https://oidc.codefresh.io:
     issuer-url: https://oidc.codefresh.io
     client-id: sigstore
     type: codefresh-workflow
+    contact: [email protected]
+    description: "Codefresh OIDC tokens for job identity"
   https://ops.gitlab.net:
     issuer-url: https://ops.gitlab.net
     client-id: sigstore
     type: gitlab-pipeline
+    contact: [email protected]
+    description: "GitLab OIDC tokens for job identity"
   https://token.actions.githubusercontent.com:
     issuer-url: https://token.actions.githubusercontent.com
     client-id: sigstore
     type: github-workflow
+    contact: [email protected]
+    description: "GitHub Actions OIDC auth"
 meta-issuers:
   https://*.oic.prod-aks.azure.com/*:
     client-id: sigstore
@@ -79,3 +103,4 @@ meta-issuers:
   https://token.actions.githubusercontent.com/*:
     client-id: sigstore
     type: github-workflow
+

docs/oidc.md

@@ -10,13 +10,18 @@ Sigstore runs a federated OIDC identity provider, Dex. Users authenticate to the
 
 To add a new OIDC issuer:
 
-* Add the new issuer to the [configuration](https://github.com/sigstore/fulcio/blob/main/config/identity/config.yaml) and to the [`identity` folder](https://github.com/sigstore/fulcio/tree/main/pkg/identity) ([example](https://github.com/sigstore/fulcio/tree/main/pkg/identity/buildkite)). You will define an `Issuer` type and a way to map the token to the certificate extensions.
-* Define a constant with the issuer type name in the [configuration](https://github.com/sigstore/fulcio/blob/afeadb3b7d11f704489637cabc4e150dea3e00ed/pkg/config/config.go#L213-L221), add update the [tests](https://github.com/sigstore/fulcio/blob/afeadb3b7d11f704489637cabc4e150dea3e00ed/pkg/config/config_test.go#L473-L503)
-* Map the issuer type to the token claim that will be signed over when requesting a token [here](https://github.com/sigstore/fulcio/blob/afeadb3b7d11f704489637cabc4e150dea3e00ed/pkg/config/config.go#L464-L486). You can likely just use `sub`.
-* Add a case statement to map the issuer constant to the issuer type you created [here](https://github.com/sigstore/fulcio/blob/4d9d96a/pkg/server/issuer_pool.go#L40-L62)
-* Update the end-to-end gRPC tests:
-   * Update the [configuration test](https://github.com/sigstore/fulcio/blob/572b7c8496c29a04721f608dd0307ba08773c60c/pkg/server/grpc_server_test.go#L175)
-   * Add a test for the new issuer ([example](https://github.com/sigstore/fulcio/blob/572b7c8496c29a04721f608dd0307ba08773c60c/pkg/server/grpc_server_test.go#L331))
+* Add the new issuer to the [configuration](https://github.com/sigstore/fulcio/blob/main/config/identity/config.yaml).
+  * Attention: If your issuer is for a CI provider, you should set the `type` as `ci-provider` and set the field `ci-provider` with the name of your provider. You should also fill the `ci-issuer-metadata` with the `default-template-values`, `extension-templates` and `subject-alternative-name-template`, following the pattern defined on the example ([example](tbd after migrating the github to ci-provider)).
+  * Important notes: The `extension-templates` and the `subject-alternative-name-template` follows the templates [pattern](https://pkg.go.dev/text/template). The name used to fill the `ci-provider` field has to be the same used as key for `ci-issuer-metadata`, we suggest to use a variable for this.
+* If your issuer is not for a CI provider, you need to follow the next steps:
+  * Add the new issuer to the [`identity` folder](https://github.com/sigstore/fulcio/tree/main/pkg/identity) ([example](https://github.com/sigstore/fulcio/tree/main/pkg/identity/email)). You will define an `Issuer` type and a way to map the token to the certificate extensions.
+  * Define a constant with the issuer type name in the [configuration](https://github.com/sigstore/fulcio/blob/afeadb3b7d11f704489637cabc4e150dea3e00ed/pkg/config/config.go#L213-L221), add update the [tests](https://github.com/sigstore/fulcio/blob/afeadb3b7d11f704489637cabc4e150dea3e00ed/pkg/config/config_test.go#L473-L503)
+  * Map the issuer type to the token claim that will be signed over when requesting a token [here](https://github.com/sigstore/fulcio/blob/afeadb3b7d11f704489637cabc4e150dea3e00ed/pkg/config/config.go#L464-L486). You can likely just use `sub`.
+  * Add a case statement to map the issuer constant to the issuer type you created [here](https://github.com/sigstore/fulcio/blob/4d9d96a/pkg/server/issuer_pool.go#L40-L62)
+* These next steps are required only for non-ci issuers, as it is already tested for generically. Although, you are welcome to add tests for your provider if you want to.
+  * Update the end-to-end gRPC tests:
+    * Update the [configuration test](https://github.com/sigstore/fulcio/blob/572b7c8496c29a04721f608dd0307ba08773c60c/pkg/server/grpc_server_test.go#L175)
+    * Add a test for the new issuer ([example](https://github.com/sigstore/fulcio/blob/572b7c8496c29a04721f608dd0307ba08773c60c/pkg/server/grpc_server_test.go#L331))
 
 See [this example](https://github.com/sigstore/fulcio/pull/890), although it is out of date as you'll now need to create an issuer type.
 

pkg/config/config.go

@@ -111,6 +111,11 @@ type OIDCIssuer struct {
 	// Optional, the challenge claim expected for the issuer
 	// Set if using a custom issuer
 	ChallengeClaim string `json:"ChallengeClaim,omitempty" yaml:"challenge-claim,omitempty"`
+	// Optional, the description for the issuer
+	Description string `json:"Description,omitempty" yaml:"description,omitempty"`
+	// Optional, the contact for the issuer team
+	// Usually it is a email
+	Contact string `json:"Contact,omitempty" yaml:"contact,omitempty"`
 }
 
 func metaRegex(issuer string) (*regexp.Regexp, error) {