/
instance.go
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/
instance.go
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package ccm
import (
"context"
"errors"
log "github.com/sirupsen/logrus"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/kubernetes"
"k8s.io/cloud-provider"
clb "github.com/capitalonline/cloud-controller-manager/pkg/clb/api"
)
type instances struct {
region string
resources *resources
k8sClient *kubernetes.Clientset
}
func newInstances(resources *resources, k8sClientSet *kubernetes.Clientset, region string) cloudprovider.Instances {
return &instances{
resources: resources,
region: region,
k8sClient: k8sClientSet,
}
}
// NodeAddresses returns all the valid addresses of the droplet identified by
// nodeName. Only the public/private IPv4 addresses are considered for now.
//
// When nodeName identifies more than one droplet, only the first will be
// considered.
func (i *instances) NodeAddresses(ctx context.Context, nodeName types.NodeName) ([]v1.NodeAddress, error) {
log.Infof("NodeAddresses:: nodeName is: %s", nodeName)
log.Infof("not support yet")
return nil, nil
}
// NodeAddressesByProviderID returns all the valid addresses of the droplet
// identified by providerID. Only the public/private IPv4 addresses will be
// considered for now.
func (i *instances) NodeAddressesByProviderID(ctx context.Context, providerID string) ([]v1.NodeAddress, error) {
log.Infof("NodeAddressesByProviderID:: providerID is: %s", providerID)
log.Infof("not support yet")
return nil, nil
}
// ExternalID returns the cloud provider ID of the droplet identified by
// nodeName. If the droplet does not exist or is no longer running, the
// returned error will be cloudprovider.InstanceNotFound.
//
// When nodeName identifies more than one droplet, only the first will be
// considered.
func (i *instances) ExternalID(ctx context.Context, nodeName types.NodeName) (string, error) {
log.Infof("ExternalID:: nodeName is: %s", nodeName)
return i.InstanceID(ctx, nodeName)
}
// InstanceID returns the cloud provider ID of the droplet identified by nodeName.
func (i *instances) InstanceID(ctx context.Context, nodeName types.NodeName) (string, error) {
log.Infof("InstanceID:: nodeName is: %s", nodeName)
log.Infof("not support yet")
return "", nil
}
// InstanceType returns the type of the droplet identified by name.
func (i *instances) InstanceType(ctx context.Context, name types.NodeName) (string, error) {
log.Infof("InstanceType:: name is: %s", name)
log.Infof("not support yet")
return "", nil
}
// InstanceTypeByProviderID returns the type of the droplet identified by providerID.
func (i *instances) InstanceTypeByProviderID(ctx context.Context, providerID string) (string, error) {
clusterID := i.resources.clusterID
log.Infof("InstanceTypeByProviderID:: clusterID is: %s, providerID is: %s", clusterID, providerID)
// get node labels and nodeName
res, err := getNodeInstanceTypeAndNodeNameByProviderID(clusterID, providerID)
if err != nil {
log.Errorf("InstanceTypeByProviderID:: getNodeInstanceTypeAndNodeNameByProviderID is error, err is: %s", err)
return "", err
}
log.Infof("InstanceTypeByProviderID:: getNodeInstanceTypeAndNodeNameByProviderID, res is: %+v", res)
if res.Data.NodeName == "" {
log.Errorf("InstanceTypeByProviderID:: getNodeInstanceTypeAndNodeNameByProviderID, nodeName is empty")
return "", errors.New("InstanceTypeByProviderID:: getNodeInstanceTypeAndNodeNameByProviderID, nodeName is empty")
}
// init cluster node labels exclude "node.kubernetes.io/instance-type"
nodeName := res.Data.NodeName
node, err := i.k8sClient.CoreV1().Nodes().Get(nodeName, metav1.GetOptions{})
if err != nil {
log.Errorf("InstanceTypeByProviderID:: k8sClient.CoreV1().Nodes().Get to get node labels error, err is: %s", err)
return "", errors.New("InstanceTypeByProviderID:: k8sClient.CoreV1().Nodes().Get to get node labels error")
}
// set labels
returnInstanceTypeValue := ""
if len(res.Data.Labels) != 0 {
for _, label := range res.Data.Labels {
for key, value := range label {
if key == "node.kubernetes.io/instance-type" {
returnInstanceTypeValue = value
continue
}
node.ObjectMeta.Labels[key] = value
log.Infof("InstanceTypeByProviderID:: set node.ObjectMeta.Labels is: %s", label)
}
}
// update nodes
_, err = i.k8sClient.CoreV1().Nodes().Update(node)
if err != nil {
log.Errorf("InstanceTypeByProviderID:: k8sClient.CoreV1().Nodes().Update(node) error, err is: %s", err)
return "", err
}
log.Infof("InstanceTypeByProviderID: update node's label succeed!")
log.Infof("InstanceTypeByProviderID:: node.ObjectMeta.Labels are: %+v", node.ObjectMeta.Labels)
}
// set taints
var taintStructTmp v1.Taint
// var taintTmpSlice []v1.Taint
taintSliceTmp := node.Spec.Taints
if len(res.Data.Taints) != 0 {
for _, taint := range res.Data.Taints {
for key, value := range taint {
taintStructTmp.Key = key
taintStructTmp.Effect = v1.TaintEffect(value)
}
taintSliceTmp = append(taintSliceTmp, taintStructTmp)
}
log.Infof("InstanceTypeByProviderID:: taintSliceTmp is: %+v", taintSliceTmp)
node.Spec.Taints = taintSliceTmp
// update nodes
_, err = i.k8sClient.CoreV1().Nodes().Update(node)
if err != nil {
log.Errorf("InstanceTypeByProviderID:: k8sClient.CoreV1().Nodes().Update(node) error, err is: %s", err)
return "", err
}
log.Infof("InstanceTypeByProviderID: update node's taints succeed!")
log.Infof("InstanceTypeByProviderID:: node.Spec.Taints are: %+v", node.Spec.Taints)
}
// returnInstanceTypeValue := "cds.vm.8c.8g"
log.Infof("InstanceTypeByProviderID:: succeed, returnInstanceTypeValue is: %s", returnInstanceTypeValue)
// return node label which label.key is "node.kubernetes.io/instance-type"
return returnInstanceTypeValue, nil
}
// AddSSHKeyToAllInstances is not implemented; it always returns an error.
func (i *instances) AddSSHKeyToAllInstances(_ context.Context, _ string, _ []byte) error {
log.Infof("AddSSHKeyToAllInstances:: none")
return errors.New("not implemented")
}
// CurrentNodeName returns hostname as a NodeName value.
func (i *instances) CurrentNodeName(_ context.Context, hostname string) (types.NodeName, error) {
log.Infof("CurrentNodeName:: hostname is: %s", hostname)
return types.NodeName(hostname), nil
}
// InstanceExistsByProviderID returns true if the instance identified by
// providerID is running.
func (i *instances) InstanceExistsByProviderID(ctx context.Context, providerID string) (bool, error) {
log.Infof("InstanceExistsByProviderID:: providerID is: %s", providerID)
ok, err := describeInstanceExistsByProviderID(providerID)
if !ok {
if err != nil {
log.Errorf("InstanceExistsByProviderID:: instance with unknown error")
return false, err
}
log.Errorf("InstanceExistsByProviderID:: instance is not exist")
return false, nil
}
log.Infof("InstanceExistsByProviderID:: instance is exist")
return true, nil
}
// InstanceShutdownByProviderID returns true if the droplet is turned off
func (i *instances) InstanceShutdownByProviderID(ctx context.Context, providerID string) (bool, error) {
log.Infof("InstanceShutdownByProviderID:: providerID is: %s", providerID)
log.Infof("not support yet")
return false, nil
}
func getNodeInstanceTypeAndNodeNameByProviderID(clusterID, providerID string)(*clb.DescribeInstancesLabelsAndNodeNameResponse, error){
response, err := clb.DescribeInstancesLabelsAndNodeName(&clb.DescribeInstancesLabelsAndNodeNameArgs{
ClusterID: clusterID,
NodeID: providerID,
})
// api with error
if err != nil {
return nil, err
}
return response, nil
}
func describeInstanceExistsByProviderID(providerID string) (bool, error) {
response, err := clb.DescribeInstanceExistsByProviderID(&clb.DescribeInstanceExistsByProviderIDArgs{
ProviderID: providerID,
})
// api with error
if err != nil {
return false, err
}
if response.Data.Status == "true" {
return true, nil
} else if response.Data.Status == "false" {
return false, nil
} else {
return false, errors.New("unknown error")
}
}