forked from kyma-project/kyma
/
oidc.go
38 lines (34 loc) · 1.3 KB
/
oidc.go
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package authn
import (
"k8s.io/apiserver/pkg/authentication/authenticator"
"k8s.io/apiserver/pkg/authentication/request/bearertoken"
"k8s.io/apiserver/plugin/pkg/authenticator/token/oidc"
)
// OIDCConfig represents configuration used for JWT request authentication
type OIDCConfig struct {
IssuerURL string
ClientID string
CAFile string `envconfig:"optional"`
UsernameClaim string `envconfig:"default=email"`
UsernamePrefix string `envconfig:"optional"`
GroupsClaim string `envconfig:"default=groups"`
GroupsPrefix string `envconfig:"optional"`
SupportedSigningAlgs []string `envconfig:"default=RS256"`
}
// NewOIDCAuthenticator returns OIDC authenticator
func NewOIDCAuthenticator(config *OIDCConfig) (authenticator.Request, error) {
tokenAuthenticator, err := oidc.New(oidc.Options{
IssuerURL: config.IssuerURL,
ClientID: config.ClientID,
CAFile: config.CAFile,
UsernameClaim: config.UsernameClaim,
UsernamePrefix: config.UsernamePrefix,
GroupsClaim: config.GroupsClaim,
GroupsPrefix: config.GroupsPrefix,
SupportedSigningAlgs: config.SupportedSigningAlgs,
})
if err != nil {
return nil, err
}
return bearertoken.New(tokenAuthenticator), nil
}