mirror of https://github.com/kubernetes/kops.git
118 lines
3.2 KiB
Go
118 lines
3.2 KiB
Go
/*
|
|
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 openstack
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/gophercloud/gophercloud"
|
|
"github.com/gophercloud/gophercloud/openstack"
|
|
"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
|
|
corev1 "k8s.io/api/core/v1"
|
|
"k8s.io/klog/v2"
|
|
"k8s.io/kops/pkg/nodeidentity"
|
|
)
|
|
|
|
// nodeIdentifier identifies a node
|
|
type nodeIdentifier struct {
|
|
novaClient *gophercloud.ServiceClient
|
|
}
|
|
|
|
// New creates and returns a nodeidentity.LegacyIdentifier for Nodes running on OpenStack
|
|
func New() (nodeidentity.LegacyIdentifier, error) {
|
|
env, err := openstack.AuthOptionsFromEnv()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
region := os.Getenv("OS_REGION_NAME")
|
|
if region == "" {
|
|
return nil, fmt.Errorf("unable to find region")
|
|
}
|
|
|
|
provider, err := openstack.NewClient(env.IdentityEndpoint)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
ua := gophercloud.UserAgent{}
|
|
ua.Prepend("kops/nodeidentity")
|
|
provider.UserAgent = ua
|
|
klog.V(4).Infof("Using user-agent %s", ua.Join())
|
|
|
|
// node-controller should be able to renew it tokens against OpenStack API
|
|
env.AllowReauth = true
|
|
|
|
err = openstack.Authenticate(provider, env)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
novaClient, err := openstack.NewComputeV2(provider, gophercloud.EndpointOpts{
|
|
Type: "compute",
|
|
Region: region,
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error building nova client: %v", err)
|
|
}
|
|
|
|
return &nodeIdentifier{
|
|
novaClient: novaClient,
|
|
}, nil
|
|
}
|
|
|
|
// IdentifyNode queries OpenStack for the node identity information
|
|
func (i *nodeIdentifier) IdentifyNode(ctx context.Context, node *corev1.Node) (*nodeidentity.LegacyInfo, error) {
|
|
providerID := node.Spec.ProviderID
|
|
if providerID == "" {
|
|
return nil, fmt.Errorf("providerID was not set for node %s", node.Name)
|
|
}
|
|
if !strings.HasPrefix(providerID, "openstack://") {
|
|
return nil, fmt.Errorf("providerID %q not recognized for node %s", providerID, node.Name)
|
|
}
|
|
|
|
instanceID := strings.TrimPrefix(providerID, "openstack://")
|
|
// instanceid looks like its openstack:/// but no idea is that really correct like that?
|
|
// this supports now both openstack:// and openstack:/// format
|
|
|
|
instanceID = strings.TrimPrefix(instanceID, "/")
|
|
|
|
kopsGroup, err := i.getInstanceGroup(instanceID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
info := &nodeidentity.LegacyInfo{}
|
|
info.InstanceGroup = kopsGroup
|
|
|
|
return info, nil
|
|
}
|
|
|
|
func (i *nodeIdentifier) getInstanceGroup(instanceID string) (string, error) {
|
|
instance, err := servers.Get(i.novaClient, instanceID).Extract()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
if val, ok := instance.Metadata["KopsInstanceGroup"]; ok {
|
|
return val, nil
|
|
}
|
|
return "", fmt.Errorf("could not find tag 'KopsInstanceGroup' from instance metadata")
|
|
}
|