func FromName(provider, project, region, cachePath string) (Client, error) {
switch provider {
case "ec2":
return ec2.GetClient(project, region, cachePath)
case "rackspace":
return rackspace.GetClient(project, region, cachePath)
case "google":
return gce.GetClient(project, region, cachePath)
}
return nil, errors.New("Unable to find provider")
}
func GetClient(project string, region string, cache_path string) (Client, error) {
// this will cause the google cache to be populated
gce.GetClient(project, region, cache_path)
c := Client{}
cache, err := config.LoadCredCache(cache_path)
if err != nil {
return c, err
}
c.cache = cache
if region == "" {
region = defaultRegion
}
c.region = region
if cache.AWS.RoleARN == "" {
var arn string
fmt.Printf("amazon role arn: ")
_, err = fmt.Scanf("%s", &arn)
if err != nil {
return c, err
}
c.cache.AWS.RoleARN = strings.TrimSpace(arn)
c.cache.Save()
}
if c.cache.AWS.Token.Expiry.Before(time.Now()) {
auth, err := authAWSFromToken(&c.cache.GCE.Token, c.cache.AWS.RoleARN)
if err != nil {
return c, err
}
c.cache.AWS.Token = *auth
c.cache.Save()
}
if _, ok := aws.Regions[c.region]; !ok {
return c, errors.New("could not find region " + c.region)
}
c.client = ec2.New(c.cache.AWS.Token.Auth, aws.Regions[c.region])
return c, nil
}