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[AWS] Set max results if its not set

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* If max results is not set and instance IDs are not provided for the
  describe instances call in the aws cloud provider, set max results.
* This prevents an expensive call against the EC2 API, which can
  result in timeouts.
This commit is contained in:
Nick Turner 2021-11-09 18:50:19 +00:00
parent 6ac2d8edc8
commit 98f26a2731
1 changed files with 7 additions and 0 deletions
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7
staging/src/k8s.io/legacy-cloud-providers/aws/aws.go
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@ -960,6 +960,13 @@ func (s *awsSdkEC2) DescribeInstances(request *ec2.DescribeInstancesInput) ([]*e
results := []*ec2.Instance{} results := []*ec2.Instance{}
var nextToken *string var nextToken *string
requestTime := time.Now() requestTime := time.Now()
if request.MaxResults == nil && request.InstanceIds == nil {
// MaxResults must be set in order for pagination to work
// MaxResults cannot be set with InstanceIds
request.MaxResults = aws.Int64(1000)
}
for { for {
response, err := s.ec2.DescribeInstances(request) response, err := s.ec2.DescribeInstances(request)
if err != nil { if err != nil {