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feat: Support karpenter.sh/instance-network-bandwidth (aws#3432)
Co-authored-by: Brandon Wagner <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| /* | ||
| 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 main | ||
|
|
||
| import ( | ||
| "flag" | ||
| "fmt" | ||
| "go/format" | ||
| "log" | ||
| "net/http" | ||
| "os" | ||
| "sort" | ||
| "strconv" | ||
|
|
||
| "github.com/PuerkitoBio/goquery" | ||
| "github.com/aws/aws-sdk-go/aws/session" | ||
| "github.com/aws/aws-sdk-go/service/ec2" | ||
| "github.com/samber/lo" | ||
| ) | ||
|
|
||
| var uriSelectors = map[string]string{ | ||
| "https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/general-purpose-instances.html": "#general-purpose-network-performance", | ||
| "https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/compute-optimized-instances.html": "#compute-network-performance", | ||
| "https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/memory-optimized-instances.html": "#memory-network-perf", | ||
| "https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/storage-optimized-instances.html": "#storage-network-performance", | ||
| "https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/accelerated-computing-instances.html": "#gpu-network-performance", | ||
| } | ||
|
|
||
| const fileFormat = ` | ||
| package cloudprovider | ||
| // GENERATED FILE. DO NOT EDIT DIRECTLY. | ||
| // Update hack/code/bandwidth_gen.go and re-generate to edit | ||
| // You can add instance types by adding to the --instance-types CLI flag | ||
| var ( | ||
| InstanceTypeBandwidthMegabits = map[string]int64{ | ||
| %s | ||
| } | ||
| ) | ||
| ` | ||
| func main() { | ||
| flag.Parse() | ||
| if flag.NArg() != 1 { | ||
| log.Fatalf("Usage: `bandwidth_gen.go pkg/cloudprovider/zz_generated.pricing.go`") | ||
| } | ||
|
|
||
| bandwidth := map[string]int64{} | ||
|
|
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| for uri, selector := range uriSelectors { | ||
| response := lo.Must(http.Get(uri)) | ||
| defer response.Body.Close() | ||
|
|
||
| doc := lo.Must(goquery.NewDocumentFromReader(response.Body)) | ||
| for _, row := range doc.Find(selector).Next().Next().Next().Find("tbody").Find("tr").Nodes { | ||
| instanceTypeData := row.FirstChild.NextSibling.FirstChild.FirstChild.Data | ||
| bandwidthData := row.FirstChild.NextSibling.NextSibling.NextSibling.FirstChild.Data | ||
| bandwidth[instanceTypeData] = int64(lo.Must(strconv.ParseFloat(bandwidthData, 64)) * 1000) | ||
| } | ||
| } | ||
|
|
||
| sess := session.Must(session.NewSession()) | ||
| ec2api := ec2.New(sess) | ||
| instanceTypesOutput := lo.Must(ec2api.DescribeInstanceTypes(&ec2.DescribeInstanceTypesInput{})) | ||
| allInstanceTypes := lo.Map(instanceTypesOutput.InstanceTypes, func(info *ec2.InstanceTypeInfo, _ int) string { return *info.InstanceType }) | ||
|
|
||
| instanceTypes := lo.Keys(bandwidth) | ||
| // 2d sort for readability | ||
| sort.Strings(instanceTypes) | ||
| sort.SliceStable(instanceTypes, func(i, j int) bool { | ||
| return bandwidth[instanceTypes[i]] < bandwidth[instanceTypes[j]] | ||
| }) | ||
|
|
||
| // Generate body | ||
| var body string | ||
| for _, instanceType := range lo.Without(allInstanceTypes, instanceTypes...) { | ||
| body += fmt.Sprintf("// %s is not available in https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-network-bandwidth.html\n", instanceType) | ||
| } | ||
| for _, instanceType := range instanceTypes { | ||
| body += fmt.Sprintf("\t\"%s\": %d,\n", instanceType, bandwidth[instanceType]) | ||
| } | ||
|
|
||
| // Format and print to the file | ||
| formatted := lo.Must(format.Source([]byte(fmt.Sprintf(fileFormat, body)))) | ||
| file := lo.Must(os.Create(flag.Args()[0])) | ||
| lo.Must(file.Write(formatted)) | ||
| file.Close() | ||
| } |
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