Cannot exchange AccessToken from Google API inside Docker container
问题 I have a web app written in Go, use oauth2 (package golang.org/x/oauth2 ) to sign user in by Google (follow this tutorial https://developers.google.com/identity/sign-in/web/server-side-flow). When I test app on local, it works fine but when I deploy app and run inside a Docker container (base on alpine:latest , run binary file), it has an error: Post https://accounts.google.com/o/oauth2/token: x509: certificate signed by unknown authority Here is my code to exchange the accessToken: ctx =