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aws_apitarget.go
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aws_apitarget.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 awsup
import (
"fmt"
"time"
"github.com/aws/aws-sdk-go/aws"
"k8s.io/klog/v2"
"k8s.io/kops/upup/pkg/fi"
)
type AWSAPITarget struct {
Cloud AWSCloud
}
var _ fi.Target = &AWSAPITarget{}
func NewAWSAPITarget(cloud AWSCloud) *AWSAPITarget {
return &AWSAPITarget{
Cloud: cloud,
}
}
func (t *AWSAPITarget) ProcessDeletions() bool {
return true
}
func (t *AWSAPITarget) Finish(taskMap map[string]fi.Task) error {
return nil
}
func (t *AWSAPITarget) AddAWSTags(id string, expected map[string]string) error {
return t.Cloud.AddAWSTags(id, expected)
}
func (t *AWSAPITarget) GetTags(id string) (map[string]string, error) {
return t.Cloud.GetTags(id)
}
func (t *AWSAPITarget) CreateTags(id string, tags map[string]string) error {
return t.Cloud.CreateTags(id, tags)
}
func (t *AWSAPITarget) DeleteTags(id string, tags map[string]string) error {
return t.Cloud.DeleteTags(id, tags)
}
func (t *AWSAPITarget) UpdateTags(id string, tags map[string]string) error {
return t.Cloud.UpdateTags(id, tags)
}
func (t *AWSAPITarget) AddELBV2Tags(ResourceArn string, expected map[string]string) error {
actual, err := t.Cloud.GetELBV2Tags(ResourceArn)
if err != nil {
return fmt.Errorf("unexpected error fetching tags for resource: %v", err)
}
missing := map[string]string{}
for k, v := range expected {
actualValue, found := actual[k]
if found && actualValue == v {
continue
}
missing[k] = v
}
if len(missing) != 0 {
klog.V(4).Infof("adding tags to %q: %v", ResourceArn, missing)
err := t.Cloud.CreateELBV2Tags(ResourceArn, missing)
if err != nil {
return fmt.Errorf("error adding tags to ELBV2 %q: %v", ResourceArn, err)
}
}
return nil
}
func (t *AWSAPITarget) RemoveELBV2Tags(ResourceArn string, expected map[string]string) error {
actual, err := t.Cloud.GetELBV2Tags(ResourceArn)
if err != nil {
return fmt.Errorf("unexpected error fetching tags for resource: %v", err)
}
extra := map[string]string{}
for k, v := range actual {
expectedValue, found := expected[k]
if found && expectedValue == v {
continue
}
extra[k] = v
}
if len(extra) != 0 {
klog.V(4).Infof("removing tags from %q: %v", ResourceArn, extra)
err := t.Cloud.RemoveELBV2Tags(ResourceArn, extra)
if err != nil {
return fmt.Errorf("error removing tags from ELBV2 %q: %v", ResourceArn, err)
}
}
return nil
}
func (t *AWSAPITarget) AddELBTags(loadBalancerName string, expected map[string]string) error {
actual, err := t.Cloud.GetELBTags(loadBalancerName)
if err != nil {
return fmt.Errorf("unexpected error fetching tags for resource: %v", err)
}
missing := map[string]string{}
for k, v := range expected {
actualValue, found := actual[k]
if found && actualValue == v {
continue
}
missing[k] = v
}
if len(missing) != 0 {
klog.V(4).Infof("adding tags to %q: %v", loadBalancerName, missing)
err := t.Cloud.CreateELBTags(loadBalancerName, missing)
if err != nil {
return fmt.Errorf("error adding tags to ELB %q: %v", loadBalancerName, err)
}
}
return nil
}
func (t *AWSAPITarget) RemoveELBTags(loadBalancerName string, expected map[string]string) error {
actual, err := t.Cloud.GetELBTags(loadBalancerName)
if err != nil {
return fmt.Errorf("unexpected error fetching tags for resource: %v", err)
}
extra := map[string]string{}
for k, v := range actual {
expectedValue, found := expected[k]
if found && expectedValue == v {
continue
}
extra[k] = v
}
if len(extra) != 0 {
klog.V(4).Infof("removing tags from %q: %v", loadBalancerName, extra)
err := t.Cloud.RemoveELBTags(loadBalancerName, extra)
if err != nil {
return fmt.Errorf("error removing tags from ELB %q: %v", loadBalancerName, err)
}
}
return nil
}
func (t *AWSAPITarget) WaitForInstanceRunning(instanceID string) error {
attempt := 0
for {
instance, err := t.Cloud.DescribeInstance(instanceID)
if err != nil {
return fmt.Errorf("error while waiting for instance to be running: %v", err)
}
if instance == nil {
// TODO: Wait if we _just_ created the instance?
return fmt.Errorf("instance not found while waiting for instance to be running")
}
state := "?"
if instance.State != nil {
state = aws.StringValue(instance.State.Name)
}
if state == "running" {
return nil
}
klog.Infof("Waiting for instance %q to be running (current state is %q)", instanceID, state)
time.Sleep(10 * time.Second)
attempt++
if attempt > 30 {
return fmt.Errorf("timeout waiting for instance %q to be running, state was %q", instanceID, state)
}
}
}