Open martin-v opened 6 years ago
The GoogleCredentials for Google Container Registry is created in https://github.com/google/google-auth-library-java/blob/13c2418a6c511765761de9e52a9f03016044dae8/oauth2_http/java/com/google/auth/oauth2/DefaultCredentialsProvider.java#L139
Cause is probably that on the travis build vm image contains some magic ENV variables or GCR build tools. This triggers the automatic support of the GCR in the docker plugin.