This mirrors a similar side fix for the API server authenticator.
Don't trim the issuer URL provided by the user since OpenID Connect
mandates that this URL exactly matches the URL returned by the
issuer during discovery.
Not test updates since this is already tested by the go-oidc client
package.
See: https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationValidation
The issuer URL passed to the plugin must identically match the issuer
URL returned by OpenID Connect discovery. However, the plugin currently
trims all trailing slashes from issuer URLs, causing a mismatch. Since
the go-oidc client already handles this case correctly, don't trim the
path.
* Use an interface for OIDC Client, so that we're testing the behavior
of the client, not the go-oidc package itself
* add backoff and retry when server rejects token
This commit handles:
* Passing ID Token as Bearer token
* Refreshing of tokens using refresh-tokens
* Persisting refreshed tokens
* ability to add arbitrary extra scopes via config
* this is what enables the cross-client/azp stuff
Eric Chiang