108 lines
2.8 KiB
Go
108 lines
2.8 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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/*
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Copyright 2022 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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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"strings"
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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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dockerHubUbuntuBaseURL = "https://hub.docker.com/v2/repositories/library/ubuntu/tags"
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)
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var (
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schema = map[string]update.Item{
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"deploy/kicbase/Dockerfile": {
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Replace: map[string]string{
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`UBUNTU_JAMMY_IMAGE=.*`: `UBUNTU_JAMMY_IMAGE="{{.LatestVersion}}"`,
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},
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},
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}
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)
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// Data holds latest Ubuntu jammy version in semver format.
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type Data struct {
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LatestVersion string
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}
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// Response is used to unmarshal the response from Docker Hub
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type Response struct {
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Results []struct {
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Name string `json:"name"`
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}
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}
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func getLatestVersion() (string, error) {
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resp, err := http.Get(dockerHubUbuntuBaseURL)
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if err != nil {
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return "", fmt.Errorf("unable to get Ubuntu jammy's latest version: %v", err)
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}
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defer resp.Body.Close()
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("unable to read HTTP response from Docker Hub: %v", err)
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}
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var content Response
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err = json.Unmarshal(body, &content)
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if err != nil {
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return "", fmt.Errorf("unable to unmarshal response from Docker Hub: %v", err)
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}
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for _, i := range content.Results {
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if strings.Contains(i.Name, "jammy-") {
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return i.Name, nil
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}
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}
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return "", fmt.Errorf("response from Docker Hub does not contain a latest jammy image")
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}
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func main() {
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// get Ubuntu Jammy latest version
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latest, err := getLatestVersion()
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if err != nil {
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klog.Fatalf("Unable to find latest ubuntu:jammy version: %v\n", err)
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}
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data := Data{LatestVersion: fmt.Sprintf("ubuntu:%s", latest)}
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klog.Infof("Ubuntu jammy latest version: %s", latest)
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update.Apply(schema, data)
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}
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