func getServicePrincipal(client ad.ServicePrincipalsClient) (ad.ServicePrincipal, error) {
// TODO(axw) filter by Service Principal Name (SPN).
// It works without that, but the response is noisy.
result, err := client.List("")
if err != nil {
return ad.ServicePrincipal{}, errors.Annotate(err, "listing service principals")
}
for _, sp := range result.Value {
if sp.ApplicationID == jujuApplicationId {
return sp, nil
}
}
return ad.ServicePrincipal{}, errors.NotFoundf("service principal")
}
