97623ab0cd
The new AuthorizerOpt `WithFetchRefreshToken` allows fetching "refresh token" (aka "identity token", "offline token"). For HTTP GET mode (`FetchToken`), `offline_token=true` is set in the request. https://docs.docker.com/registry/spec/auth/token/#requesting-a-token For HTTP POST mode (`FetchTokenWithOAuth`), `access_type=offline` is set in the request. https://docs.docker.com/registry/spec/auth/oauth/#getting-a-token Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>