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|
package openstack
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"os"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/openstack"
"github.com/hashicorp/go-cleanhttp"
"github.com/hashicorp/packer/template/interpolate"
)
// AccessConfig is for common configuration related to openstack access
type AccessConfig struct {
Username string `mapstructure:"username"`
UserID string `mapstructure:"user_id"`
Password string `mapstructure:"password"`
IdentityEndpoint string `mapstructure:"identity_endpoint"`
TenantID string `mapstructure:"tenant_id"`
TenantName string `mapstructure:"tenant_name"`
DomainID string `mapstructure:"domain_id"`
DomainName string `mapstructure:"domain_name"`
Insecure bool `mapstructure:"insecure"`
Region string `mapstructure:"region"`
EndpointType string `mapstructure:"endpoint_type"`
CACertFile string `mapstructure:"cacert"`
ClientCertFile string `mapstructure:"cert"`
ClientKeyFile string `mapstructure:"key"`
Token string `mapstructure:"token"`
osClient *gophercloud.ProviderClient
}
func (c *AccessConfig) Prepare(ctx *interpolate.Context) []error {
if c.EndpointType != "internal" && c.EndpointType != "internalURL" &&
c.EndpointType != "admin" && c.EndpointType != "adminURL" &&
c.EndpointType != "public" && c.EndpointType != "publicURL" &&
c.EndpointType != "" {
return []error{fmt.Errorf("Invalid endpoint type provided")}
}
// Legacy RackSpace stuff. We're keeping this around to keep things BC.
if c.Password == "" {
c.Password = os.Getenv("SDK_PASSWORD")
}
if c.Region == "" {
c.Region = os.Getenv("SDK_REGION")
}
if c.TenantName == "" {
c.TenantName = os.Getenv("SDK_PROJECT")
}
if c.Username == "" {
c.Username = os.Getenv("SDK_USERNAME")
}
// End RackSpace
if c.Region == "" {
c.Region = os.Getenv("OS_REGION_NAME")
}
if c.CACertFile == "" {
c.CACertFile = os.Getenv("OS_CACERT")
}
if c.ClientCertFile == "" {
c.ClientCertFile = os.Getenv("OS_CERT")
}
if c.ClientKeyFile == "" {
c.ClientKeyFile = os.Getenv("OS_KEY")
}
ao, _ := openstack.AuthOptionsFromEnv()
// Make sure we reauth as needed
ao.AllowReauth = true
// Override values if we have them in our config
overrides := []struct {
From, To *string
}{
{&c.Username, &ao.Username},
{&c.UserID, &ao.UserID},
{&c.Password, &ao.Password},
{&c.IdentityEndpoint, &ao.IdentityEndpoint},
{&c.TenantID, &ao.TenantID},
{&c.TenantName, &ao.TenantName},
{&c.DomainID, &ao.DomainID},
{&c.DomainName, &ao.DomainName},
{&c.Token, &ao.TokenID},
}
for _, s := range overrides {
if *s.From != "" {
*s.To = *s.From
}
}
// Build the client itself
client, err := openstack.NewClient(ao.IdentityEndpoint)
if err != nil {
return []error{err}
}
tls_config := &tls.Config{}
if c.CACertFile != "" {
caCert, err := ioutil.ReadFile(c.CACertFile)
if err != nil {
return []error{err}
}
caCertPool := x509.NewCertPool()
caCertPool.AppendCertsFromPEM(caCert)
tls_config.RootCAs = caCertPool
}
// If we have insecure set, then create a custom HTTP client that
// ignores SSL errors.
if c.Insecure {
tls_config.InsecureSkipVerify = true
}
if c.ClientCertFile != "" && c.ClientKeyFile != "" {
cert, err := tls.LoadX509KeyPair(c.ClientCertFile, c.ClientKeyFile)
if err != nil {
return []error{err}
}
tls_config.Certificates = []tls.Certificate{cert}
}
transport := cleanhttp.DefaultTransport()
transport.TLSClientConfig = tls_config
client.HTTPClient.Transport = transport
// Auth
err = openstack.Authenticate(client, ao)
if err != nil {
return []error{err}
}
c.osClient = client
return nil
}
func (c *AccessConfig) computeV2Client() (*gophercloud.ServiceClient, error) {
return openstack.NewComputeV2(c.osClient, gophercloud.EndpointOpts{
Region: c.Region,
Availability: c.getEndpointType(),
})
}
func (c *AccessConfig) imageV2Client() (*gophercloud.ServiceClient, error) {
return openstack.NewImageServiceV2(c.osClient, gophercloud.EndpointOpts{
Region: c.Region,
Availability: c.getEndpointType(),
})
}
func (c *AccessConfig) blockStorageV3Client() (*gophercloud.ServiceClient, error) {
return openstack.NewBlockStorageV3(c.osClient, gophercloud.EndpointOpts{
Region: c.Region,
Availability: c.getEndpointType(),
})
}
func (c *AccessConfig) networkV2Client() (*gophercloud.ServiceClient, error) {
return openstack.NewNetworkV2(c.osClient, gophercloud.EndpointOpts{
Region: c.Region,
Availability: c.getEndpointType(),
})
}
func (c *AccessConfig) getEndpointType() gophercloud.Availability {
if c.EndpointType == "internal" || c.EndpointType == "internalURL" {
return gophercloud.AvailabilityInternal
}
if c.EndpointType == "admin" || c.EndpointType == "adminURL" {
return gophercloud.AvailabilityAdmin
}
return gophercloud.AvailabilityPublic
}
|
