Support Keystone v3 domains

Fix #679

Signed-off-by: Guillaume Giamarchi <guillaume.giamarchi@gmail.com>

docs/index.md

@@ -767,6 +767,7 @@ Mandatory:
 Options:
 
  - `--openstack-auth-url`: Keystone service base URL.
+ - `--openstack-domain-name` or `--openstack-domain-id`: Domain to use for authentication (Keystone v3 only)
  - `--openstack-username`: User identifer to authenticate with.
  - `--openstack-password`: User password. It can be omitted if the standard environment variable `OS_PASSWORD` is set.
  - `--openstack-tenant-name` or `--openstack-tenant-id`: Identify the tenant in which the machine will be created.
@@ -791,6 +792,8 @@ and CLI option are provided the CLI option takes the precedence.
 | Environment variable | CLI option                  |
 |----------------------|-----------------------------|
 | `OS_AUTH_URL`        | `--openstack-auth-url`      |
+| `OS_DOMAIN_ID`       | `--openstack-domain-id`     |
+| `OS_DOMAIN_NAME`     | `--openstack-domain-name`   |
 | `OS_USERNAME`        | `--openstack-username`      |
 | `OS_PASSWORD`        | `--openstack-password`      |
 | `OS_TENANT_NAME`     | `--openstack-tenant-name`   |

drivers/openstack/client.go

@@ -399,6 +399,8 @@ func (c *GenericClient) Authenticate(d *Driver) error {
 	log.WithFields(log.Fields{
 		"AuthUrl":    d.AuthUrl,
 		"Insecure":   d.Insecure,
+		"DomainID":   d.DomainID,
+		"DomainName": d.DomainName,
 		"Username":   d.Username,
 		"TenantName": d.TenantName,
 		"TenantID":   d.TenantId,
@@ -406,6 +408,8 @@ func (c *GenericClient) Authenticate(d *Driver) error {
 
 	opts := gophercloud.AuthOptions{
 		IdentityEndpoint: d.AuthUrl,
+		DomainID:         d.DomainID,
+		DomainName:       d.DomainName,
 		Username:         d.Username,
 		Password:         d.Password,
 		TenantName:       d.TenantName,

drivers/openstack/openstack.go

@@ -23,6 +23,8 @@ const (
 type Driver struct {
 	AuthUrl          string
 	Insecure         bool
+	DomainID         string
+	DomainName       string
 	Username         string
 	Password         string
 	TenantName       string
@@ -72,6 +74,18 @@ func GetCreateFlags() []cli.Flag {
 			Name:  "openstack-insecure",
 			Usage: "Disable TLS credential checking.",
 		},
+		cli.StringFlag{
+			EnvVar: "OS_DOMAIN_ID",
+			Name:   "openstack-domain-id",
+			Usage:  "OpenStack domain ID (identity v3 only)",
+			Value:  "",
+		},
+		cli.StringFlag{
+			EnvVar: "OS_DOMAIN_NAME",
+			Name:   "openstack-domain-name",
+			Usage:  "OpenStack domain name (identity v3 only)",
+			Value:  "",
+		},
 		cli.StringFlag{
 			EnvVar: "OS_USERNAME",
 			Name:   "openstack-username",
@@ -229,6 +243,8 @@ func (d *Driver) DriverName() string {
 func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
 	d.AuthUrl = flags.String("openstack-auth-url")
 	d.Insecure = flags.Bool("openstack-insecure")
+	d.DomainID = flags.String("openstack-domain-id")
+	d.DomainName = flags.String("openstack-domain-name")
 	d.Username = flags.String("openstack-username")
 	d.Password = flags.String("openstack-password")
 	d.TenantName = flags.String("openstack-tenant-name")