terraform/vendor/github.com/rackspace/gophercloud/openstack/auth_env.go

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package openstack
import (
"fmt"
"os"
"github.com/rackspace/gophercloud"
)
var nilOptions = gophercloud.AuthOptions{}
// ErrNoAuthUrl, ErrNoUsername, and ErrNoPassword errors indicate of the required OS_AUTH_URL, OS_USERNAME, or OS_PASSWORD
// environment variables, respectively, remain undefined. See the AuthOptions() function for more details.
var (
ErrNoAuthURL = fmt.Errorf("Environment variable OS_AUTH_URL needs to be set.")
ErrNoUsername = fmt.Errorf("Environment variable OS_USERNAME, OS_USERID, or OS_TOKEN needs to be set.")
ErrNoPassword = fmt.Errorf("Environment variable OS_PASSWORD or OS_TOKEN needs to be set.")
)
// AuthOptionsFromEnv fills out an AuthOptions structure from the environment
// variables: OS_AUTH_URL, OS_USERNAME, OS_USERID, OS_PASSWORD, OS_TENANT_ID,
// OS_TENANT_NAME, OS_DOMAIN_ID, OS_DOMAIN_NAME, OS_TOKEN. It checks that
// (1) OS_AUTH_URL is set, (2) OS_USERNAME, OS_USERID, or OS_TOKEN is set,
// (3) OS_PASSWORD or OS_TOKEN is set.
func AuthOptionsFromEnv() (gophercloud.AuthOptions, error) {
authURL := os.Getenv("OS_AUTH_URL")
username := os.Getenv("OS_USERNAME")
userID := os.Getenv("OS_USERID")
password := os.Getenv("OS_PASSWORD")
tenantID := os.Getenv("OS_TENANT_ID")
tenantName := os.Getenv("OS_TENANT_NAME")
domainID := os.Getenv("OS_DOMAIN_ID")
domainName := os.Getenv("OS_DOMAIN_NAME")
tokenID := os.Getenv("OS_TOKEN")
if authURL == "" {
return nilOptions, ErrNoAuthURL
}
if username == "" && userID == "" && tokenID == "" {
return nilOptions, ErrNoUsername
}
if password == "" && tokenID == "" {
return nilOptions, ErrNoPassword
}
ao := gophercloud.AuthOptions{
IdentityEndpoint: authURL,
UserID: userID,
Username: username,
Password: password,
TenantID: tenantID,
TenantName: tenantName,
DomainID: domainID,
DomainName: domainName,
TokenID: tokenID,
}
return ao, nil
}