mirror of https://github.com/kubernetes/kops.git
119 lines
3.6 KiB
Go
119 lines
3.6 KiB
Go
/*
|
|
Copyright 2016 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 kutil
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/aws/aws-sdk-go/aws"
|
|
"github.com/aws/aws-sdk-go/service/autoscaling"
|
|
"github.com/golang/glog"
|
|
"k8s.io/kops/upup/pkg/fi/cloudup/awsup"
|
|
)
|
|
|
|
// findAutoscalingGroups finds autoscaling groups matching the specified tags
|
|
// This isn't entirely trivial because autoscaling doesn't let us filter with as much precision as we would like
|
|
func findAutoscalingGroups(cloud awsup.AWSCloud, tags map[string]string) ([]*autoscaling.Group, error) {
|
|
var asgs []*autoscaling.Group
|
|
|
|
glog.V(2).Infof("Listing all Autoscaling groups matching cluster tags")
|
|
var asgNames []*string
|
|
{
|
|
var asFilters []*autoscaling.Filter
|
|
for _, v := range tags {
|
|
// Not an exact match, but likely the best we can do
|
|
asFilters = append(asFilters, &autoscaling.Filter{
|
|
Name: aws.String("value"),
|
|
Values: []*string{aws.String(v)},
|
|
})
|
|
}
|
|
request := &autoscaling.DescribeTagsInput{
|
|
Filters: asFilters,
|
|
}
|
|
|
|
err := cloud.Autoscaling().DescribeTagsPages(request, func(p *autoscaling.DescribeTagsOutput, lastPage bool) bool {
|
|
for _, t := range p.Tags {
|
|
switch *t.ResourceType {
|
|
case "auto-scaling-group":
|
|
asgNames = append(asgNames, t.ResourceId)
|
|
default:
|
|
glog.Warningf("Unknown resource type: %v", *t.ResourceType)
|
|
|
|
}
|
|
}
|
|
return true
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error listing autoscaling cluster tags: %v", err)
|
|
}
|
|
}
|
|
|
|
if len(asgNames) != 0 {
|
|
request := &autoscaling.DescribeAutoScalingGroupsInput{
|
|
AutoScalingGroupNames: asgNames,
|
|
}
|
|
err := cloud.Autoscaling().DescribeAutoScalingGroupsPages(request, func(p *autoscaling.DescribeAutoScalingGroupsOutput, lastPage bool) bool {
|
|
for _, asg := range p.AutoScalingGroups {
|
|
if !matchesAsgTags(tags, asg.Tags) {
|
|
// We used an inexact filter above
|
|
continue
|
|
}
|
|
// Check for "Delete in progress" (the only use of .Status)
|
|
if asg.Status != nil {
|
|
glog.Warningf("Skipping ASG %v (which matches tags): %v", *asg.AutoScalingGroupARN, *asg.Status)
|
|
continue
|
|
}
|
|
asgs = append(asgs, asg)
|
|
}
|
|
return true
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error listing autoscaling groups: %v", err)
|
|
}
|
|
|
|
}
|
|
|
|
return asgs, nil
|
|
}
|
|
|
|
func findAutoscalingLaunchConfiguration(cloud awsup.AWSCloud, name string) (*autoscaling.LaunchConfiguration, error) {
|
|
glog.V(2).Infof("Retrieving Autoscaling LaunchConfigurations %q", name)
|
|
|
|
var results []*autoscaling.LaunchConfiguration
|
|
|
|
request := &autoscaling.DescribeLaunchConfigurationsInput{
|
|
LaunchConfigurationNames: []*string{&name},
|
|
}
|
|
err := cloud.Autoscaling().DescribeLaunchConfigurationsPages(request, func(p *autoscaling.DescribeLaunchConfigurationsOutput, lastPage bool) bool {
|
|
for _, t := range p.LaunchConfigurations {
|
|
results = append(results, t)
|
|
}
|
|
return true
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("error listing autoscaling LaunchConfigurations: %v", err)
|
|
}
|
|
|
|
if len(results) == 0 {
|
|
return nil, nil
|
|
}
|
|
if len(results) != 1 {
|
|
return nil, fmt.Errorf("Found multiple LaunchConfigurations with name %q", name)
|
|
}
|
|
return results[0], nil
|
|
}
|