Remove EmailDomain verification from GitLab provider

This is handled globally

CHANGELOG.md

@@ -26,11 +26,10 @@
 ## Changes since v6.1.1
 
 - [#825](https://github.com/oauth2-proxy/oauth2-proxy/pull/825) Fix code coverage reporting on GitHub actions(@JoelSpeed)
-- [#767](https://github.com/oauth2-proxy/oauth2-proxy/pull/796) Deprecate GetUserName & GetEmailAdress for EnrichSessionState (@NickMeves)
+- [#796](https://github.com/oauth2-proxy/oauth2-proxy/pull/796) Deprecate GetUserName & GetEmailAdress for EnrichSessionState (@NickMeves)
 - [#705](https://github.com/oauth2-proxy/oauth2-proxy/pull/705) Add generic Header injectors for upstream request and response headers (@JoelSpeed)
 - [#753](https://github.com/oauth2-proxy/oauth2-proxy/pull/753) Pass resource parameter in login url (@codablock)
 - [#789](https://github.com/oauth2-proxy/oauth2-proxy/pull/789) Add `--skip-auth-route` configuration option for `METHOD=pathRegex` based allowlists (@NickMeves)
-- [#767](https://github.com/oauth2-proxy/oauth2-proxy/pull/796) Deprecate GetUserName & GetEmailAdress for EnrichSessionState (@NickMeves)
 - [#575](https://github.com/oauth2-proxy/oauth2-proxy/pull/575) Stop accepting legacy SHA1 signed cookies (@NickMeves)
 - [#722](https://github.com/oauth2-proxy/oauth2-proxy/pull/722) Validate Redis configuration options at startup (@NickMeves)
 - [#791](https://github.com/oauth2-proxy/oauth2-proxy/pull/791) Remove GetPreferredUsername method from provider interface (@NickMeves)

pkg/validation/options.go

@@ -273,7 +273,6 @@ func parseProviderInfo(o *options.Options, msgs []string) []string {
 	case *providers.GitLabProvider:
 		p.AllowUnverifiedEmail = o.InsecureOIDCAllowUnverifiedEmail
 		p.Groups = o.GitLabGroup
-		p.EmailDomains = o.EmailDomains
 
 		if o.GetOIDCVerifier() != nil {
 			p.Verifier = o.GetOIDCVerifier()

providers/gitlab.go

@@ -15,9 +15,7 @@ import (
 type GitLabProvider struct {
 	*ProviderData
 
-	Groups       []string
-	EmailDomains []string
-
+	Groups               []string
 	Verifier             *oidc.IDTokenVerifier
 	AllowUnverifiedEmail bool
 }