/
openstack_volume.go
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/
openstack_volume.go
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/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package protokube
import (
"fmt"
"net"
"strings"
"k8s.io/klog/v2"
"k8s.io/kops/protokube/pkg/gossip"
gossipos "k8s.io/kops/protokube/pkg/gossip/openstack"
"k8s.io/kops/upup/pkg/fi/cloudup/openstack"
)
// OpenStackCloudProvider is the CloudProvider implementation for OpenStack
type OpenStackCloudProvider struct {
cloud openstack.OpenstackCloud
meta *openstack.InstanceMetadata
clusterName string
project string
instanceName string
internalIP net.IP
storageZone string
}
var _ CloudProvider = &OpenStackCloudProvider{}
// NewOpenStackCloudProvider builds a OpenStackCloudProvider
func NewOpenStackCloudProvider() (*OpenStackCloudProvider, error) {
metadata, err := openstack.GetLocalMetadata()
if err != nil {
return nil, fmt.Errorf("Failed to get server metadata: %v", err)
}
oscloud, err := openstack.NewOpenstackCloud(nil, "protokube")
if err != nil {
return nil, fmt.Errorf("Failed to initialize OpenStackCloudProvider: %v", err)
}
a := &OpenStackCloudProvider{
cloud: oscloud,
meta: metadata,
}
err = a.discoverTags()
if err != nil {
return nil, err
}
return a, nil
}
// Project returns the current OpenStack project
func (a *OpenStackCloudProvider) Project() string {
return a.meta.ProjectID
}
// InstanceInternalIP implements CloudProvider InstanceInternalIP
func (a *OpenStackCloudProvider) InstanceInternalIP() net.IP {
return a.internalIP
}
func (a *OpenStackCloudProvider) discoverTags() error {
// Cluster Name
{
a.clusterName = strings.TrimSpace(string(a.meta.UserMeta.ClusterName))
if a.clusterName == "" {
return fmt.Errorf("cluster name metadata was empty")
}
klog.Infof("Found cluster name=%q", a.clusterName)
}
// Project ID
{
a.project = strings.TrimSpace(a.meta.ProjectID)
if a.project == "" {
return fmt.Errorf("project metadata was empty")
}
klog.Infof("Found project=%q", a.project)
}
// Storage Availability Zone
az, err := a.cloud.GetStorageAZFromCompute(a.meta.AvailabilityZone)
if err != nil {
return fmt.Errorf("Could not establish storage availability zone: %v", err)
}
a.storageZone = az.ZoneName
klog.Infof("Found zone=%q", a.storageZone)
// Instance Name
{
a.instanceName = strings.TrimSpace(a.meta.Name)
if a.instanceName == "" {
return fmt.Errorf("instance name metadata was empty")
}
klog.Infof("Found instanceName=%q", a.instanceName)
}
// Internal IP
{
server, err := a.cloud.GetInstance(strings.TrimSpace(a.meta.ServerID))
if err != nil {
return fmt.Errorf("error getting instance from ID: %v", err)
}
// find kopsNetwork from metadata, fallback to clustername
ifName := a.clusterName
if val, ok := server.Metadata[openstack.TagKopsNetwork]; ok {
ifName = val
}
ip, err := openstack.GetServerFixedIP(server, ifName)
if err != nil {
return fmt.Errorf("error querying InternalIP from name: %v", err)
}
a.internalIP = net.ParseIP(ip)
klog.Infof("Found internalIP=%q", a.internalIP)
}
return nil
}
func (g *OpenStackCloudProvider) GossipSeeds() (gossip.SeedProvider, error) {
return gossipos.NewSeedProvider(g.cloud.ComputeClient(), g.clusterName, g.project)
}
func (g *OpenStackCloudProvider) InstanceID() string {
return g.instanceName
}