109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"context"
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"fmt"
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"io"
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"net/http"
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"regexp"
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"strings"
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"time"
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"github.com/google/go-github/v53/github"
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"k8s.io/klog/v2"
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"k8s.io/minikube/hack/update"
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)
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const (
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cxTimeout = 1 * time.Minute
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// ghListPerPage uses max value (100) for PerPage to avoid hitting the rate limits.
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// (ref: https://pkg.go.dev/github.com/google/go-github/github#hdr-Rate_Limiting)
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ghListPerPage = 100
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// ghSearchLimit limits the number of searched items to be <= N * ghListPerPage.
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ghSearchLimit = 300
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)
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var schema = map[string]update.Item{
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"pkg/minikube/assets/addons.go": {
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Replace: map[string]string{
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`ingress-nginx/controller:.*`: `{{.Controller}}",`,
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`ingress-nginx/kube-webhook-certgen.*`: `{{.Webhook}}",`,
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},
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},
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}
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type Data struct {
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Controller string
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Webhook string
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}
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func main() {
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ctx, cancel := context.WithTimeout(context.Background(), cxTimeout)
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defer cancel()
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tag, err := LatestControllerTag(ctx)
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if err != nil {
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klog.Fatalf("Unable to get controller tag: %v", err)
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}
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res, err := http.Get(fmt.Sprintf("https://raw.githubusercontent.com/kubernetes/ingress-nginx/%s/deploy/static/provider/kind/deploy.yaml", tag))
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if err != nil {
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klog.Fatalf("failed to get deploy.yaml: %v", err)
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}
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defer res.Body.Close()
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body, err := io.ReadAll(res.Body)
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if err != nil {
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klog.Fatalf("failed to read body: %v", err)
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}
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controllerRegex := regexp.MustCompile(`ingress-nginx\/controller.*`)
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controllerImage := controllerRegex.Find(body)
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webhookRegex := regexp.MustCompile(`ingress-nginx\/kube-webhook-certgen.*`)
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webhookImage := webhookRegex.Find(body)
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data := Data{Controller: string(controllerImage), Webhook: string(webhookImage)}
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update.Apply(schema, data)
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}
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func LatestControllerTag(ctx context.Context) (string, error) {
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ghc := github.NewClient(nil)
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// walk through the paginated list of up to ghSearchLimit newest releases
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opts := &github.ListOptions{PerPage: ghListPerPage}
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for (opts.Page+1)*ghListPerPage <= ghSearchLimit {
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rls, resp, err := ghc.Repositories.ListReleases(ctx, "kubernetes", "ingress-nginx", opts)
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if err != nil {
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return "", err
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}
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for _, rl := range rls {
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ver := rl.GetTagName()
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if strings.HasPrefix(ver, "controller-") {
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return ver, nil
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}
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}
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if resp.NextPage == 0 {
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break
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}
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opts.Page = resp.NextPage
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}
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return "", fmt.Errorf("no version found")
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}
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