gcloud auth login

Go to the following link in your browser:
    https://accounts.google.com/o/oauth2/auth?response_type=code&client_id=.../...

Enter verification code: XXXXXXXXXXXXXXXXXXXXXXXXXXXXX

You are now logged in as [your_username@your_domain.com].
Your current project is [None].  You can change this setting by running:
  $ ]]gcloud config set project]] PROJECT_ID

See also

• gcloud auth [ list | login | print-access-token | configure-docker | activate-service-account | application-default login] | print-access-token | print-identity-token | --help]
• gcloud [ config | scheduler | auth | asset | services | gcloud auth login | iam | sql | projects | container | compute | kms | source], gcloud composer environments create | build | gcloud config set project, gcloud source repos create, gcloud composer environments create, gcloud version, gcloud --help