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config.go
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config.go
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package openstack
import (
"crypto/tls"
"crypto/x509"
"fmt"
"io/ioutil"
"net/http"
"github.com/gophercloud/gophercloud"
"github.com/gophercloud/gophercloud/openstack"
"github.com/gophercloud/gophercloud/openstack/objectstorage/v1/swauth"
)
type Config struct {
CACertFile string
ClientCertFile string
ClientKeyFile string
DomainID string
DomainName string
EndpointType string
IdentityEndpoint string
Insecure bool
Password string
Swauth bool
TenantID string
TenantName string
Token string
Username string
UserID string
osClient *gophercloud.ProviderClient
}
func (c *Config) loadAndValidate() error {
validEndpoint := false
validEndpoints := []string{
"internal", "internalURL",
"admin", "adminURL",
"public", "publicURL",
"",
}
for _, endpoint := range validEndpoints {
if c.EndpointType == endpoint {
validEndpoint = true
}
}
if !validEndpoint {
return fmt.Errorf("Invalid endpoint type provided")
}
ao := gophercloud.AuthOptions{
DomainID: c.DomainID,
DomainName: c.DomainName,
IdentityEndpoint: c.IdentityEndpoint,
Password: c.Password,
TenantID: c.TenantID,
TenantName: c.TenantName,
TokenID: c.Token,
Username: c.Username,
UserID: c.UserID,
}
client, err := openstack.NewClient(ao.IdentityEndpoint)
if err != nil {
return err
}
config := &tls.Config{}
if c.CACertFile != "" {
caCert, err := ioutil.ReadFile(c.CACertFile)
if err != nil {
return err
}
caCertPool := x509.NewCertPool()
caCertPool.AppendCertsFromPEM(caCert)
config.RootCAs = caCertPool
}
if c.Insecure {
config.InsecureSkipVerify = true
}
if c.ClientCertFile != "" && c.ClientKeyFile != "" {
cert, err := tls.LoadX509KeyPair(c.ClientCertFile, c.ClientKeyFile)
if err != nil {
return err
}
config.Certificates = []tls.Certificate{cert}
config.BuildNameToCertificate()
}
transport := &http.Transport{Proxy: http.ProxyFromEnvironment, TLSClientConfig: config}
client.HTTPClient.Transport = transport
// If using Swift Authentication, there's no need to validate authentication normally.
if !c.Swauth {
err = openstack.Authenticate(client, ao)
if err != nil {
return err
}
}
c.osClient = client
return nil
}
func (c *Config) blockStorageV1Client(region string) (*gophercloud.ServiceClient, error) {
return openstack.NewBlockStorageV1(c.osClient, gophercloud.EndpointOpts{
Region: region,
Availability: c.getEndpointType(),
})
}
func (c *Config) blockStorageV2Client(region string) (*gophercloud.ServiceClient, error) {
return openstack.NewBlockStorageV2(c.osClient, gophercloud.EndpointOpts{
Region: region,
Availability: c.getEndpointType(),
})
}
func (c *Config) computeV2Client(region string) (*gophercloud.ServiceClient, error) {
return openstack.NewComputeV2(c.osClient, gophercloud.EndpointOpts{
Region: region,
Availability: c.getEndpointType(),
})
}
func (c *Config) networkingV2Client(region string) (*gophercloud.ServiceClient, error) {
return openstack.NewNetworkV2(c.osClient, gophercloud.EndpointOpts{
Region: region,
Availability: c.getEndpointType(),
})
}
func (c *Config) objectStorageV1Client(region string) (*gophercloud.ServiceClient, error) {
// If Swift Authentication is being used, return a swauth client.
if c.Swauth {
return swauth.NewObjectStorageV1(c.osClient, swauth.AuthOpts{
User: c.Username,
Key: c.Password,
})
}
return openstack.NewObjectStorageV1(c.osClient, gophercloud.EndpointOpts{
Region: region,
Availability: c.getEndpointType(),
})
}
func (c *Config) 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
}