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✨ add hack/tooling and controller setup to use binaries from the proj…
…ect bin
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Camila Macedo
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Nov 23, 2020
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191 changes: 191 additions & 0 deletions
191
pkg/plugin/v2/scaffolds/internal/templates/hack/tooling.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| /* | ||
| Copyright 2020 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 hack | ||
|
|
||
| import ( | ||
| "path/filepath" | ||
|
|
||
| "sigs.k8s.io/kubebuilder/v2/pkg/model/file" | ||
| ) | ||
|
|
||
| var _ file.Template = &Tooling{} | ||
|
|
||
| // Tooling scaffolds the tooling file in the root dir. | ||
| type Tooling struct { | ||
| file.TemplateMixin | ||
| file.BoilerplateMixin | ||
|
|
||
| // KubernetesVersion defines the version used to download the binaries | ||
| KubernetesVersion string | ||
| } | ||
|
|
||
| // SetTemplateDefaults implements input.Template | ||
| func (f *Tooling) SetTemplateDefaults() error { | ||
| if f.Path == "" { | ||
| f.Path = filepath.Join("hack", "tooling.go") | ||
| } | ||
|
|
||
| f.TemplateBody = toolingTemplate | ||
|
|
||
| f.IfExistsAction = file.Error | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // nolint: lll | ||
| const toolingTemplate = `{{ .Boilerplate }} | ||
| package main | ||
| import ( | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "os" | ||
| "os/exec" | ||
| "path/filepath" | ||
| "strings" | ||
| "k8s.io/klog" | ||
| ) | ||
| const ( | ||
| // defaultKubebuilderPath is the fixed value defined in the controller-runtime to looking for the | ||
| // binaries. | ||
| defaultKubebuilderPath = "/usr/local/kubebuilder/bin" | ||
| // kubernetesVersion defines the version used to download the binaries | ||
| kubernetesVersion = "{{ .KubernetesVersion }}" | ||
| ) | ||
| func main() { | ||
| klog.Info("Checking EnvTest binaries") | ||
| assetsEnv := os.Getenv("KUBEBUILDER_ASSETS") | ||
| if strings.TrimSpace(assetsEnv) != "" { | ||
| klog.Infof("EnvTest binaries configured via KUBEBUILDER_ASSETS: %s", assetsEnv) | ||
| os.Exit(0) | ||
| } | ||
| if HasBinaries(defaultKubebuilderPath) { | ||
| klog.Infof("EnvTest binaries found in : %s ", defaultKubebuilderPath) | ||
| os.Exit(0) | ||
| } | ||
| currentPath, err := os.Getwd() | ||
| if err != nil { | ||
| klog.Fatal(err) | ||
| } | ||
| binPath := filepath.Join(currentPath, "bin") | ||
| if HasBinaries(binPath) { | ||
| klog.Info("EnvTest binaries found in bin/") | ||
| os.Exit(0) | ||
| } | ||
| klog.Infof("Downloading EnvTest tools") | ||
| envtest_tools_archive_name := getEnvToolsArchiveName() | ||
| envtest_tools_download_url := "https://storage.googleapis.com/kubebuilder-tools/" + envtest_tools_archive_name | ||
| err = downloadFile(envtest_tools_archive_name, envtest_tools_download_url) | ||
| if err != nil { | ||
| klog.Fatalf("unable to download the file (%v) from (%v): %v", envtest_tools_archive_name, envtest_tools_download_url, err) | ||
| } | ||
| if _, err := os.Stat(binPath); os.IsNotExist(err) { | ||
| klog.Infof("Creating bin/ directory") | ||
| err = os.Mkdir(binPath, 0755) | ||
| if err != nil { | ||
| klog.Fatalf("error to create the bin/ directory : %s", err) | ||
| } | ||
| } | ||
| cmd := exec.Command("tar", "-C", binPath, "--strip-components=2", "-zvxf", envtest_tools_archive_name) | ||
| if err := cmd.Run(); err != nil { | ||
| klog.Fatalf("error to untar bin %v: %v", filepath.Join(binPath, envtest_tools_archive_name ) ,err) | ||
| } | ||
| cmd = exec.Command("rm", "-rf", filepath.Join(currentPath,envtest_tools_archive_name)) | ||
| if err := cmd.Run(); err != nil { | ||
| klog.Fatal(err) | ||
| } | ||
| klog.Infof("EnvTest binaries are in the directory %v", binPath) | ||
| } | ||
| // getEnvToolsArchiveName will return the name of the env tools archive based or the arch and so | ||
| func getEnvToolsArchiveName() string { | ||
| cmd := exec.Command("go", "env", "GOARCH") | ||
| goarch, err := cmd.CombinedOutput() | ||
| if err != nil { | ||
| klog.Fatal(err) | ||
| } | ||
| cmd = exec.Command("go", "env", "GOOS") | ||
| goos, err := cmd.CombinedOutput() | ||
| if err != nil { | ||
| klog.Fatal(err) | ||
| } | ||
| return fmt.Sprintf("kubebuilder-tools-%s-%s-%s.tar.gz", kubernetesVersion, strings.TrimSpace(string(goos)), strings.TrimSpace(string(goarch))) | ||
| } | ||
| // HasBinaries will return true when the testbin exist and has the binaries | ||
| func HasBinaries(path string) bool { | ||
| if _, err := os.Stat(path); os.IsNotExist(err) { | ||
| return false | ||
| } | ||
| if _, err := os.Stat(filepath.Join(path, "etcd")); os.IsNotExist(err) { | ||
| return false | ||
| } | ||
| if _, err := os.Stat(filepath.Join(path, "kube-apiserver")); os.IsNotExist(err) { | ||
| return false | ||
| } | ||
| if _, err := os.Stat(filepath.Join(path, "kubectl")); os.IsNotExist(err) { | ||
| return false | ||
| } | ||
| return true | ||
| } | ||
| // downloadFile will download a url to a local file. | ||
| func downloadFile(filepath string, url string) error { | ||
| // Get the data | ||
| resp, err := http.Get(url) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer resp.Body.Close() | ||
| // Create the file | ||
| out, err := os.Create(filepath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer out.Close() | ||
| // Write the body to file | ||
| _, err = io.Copy(out, resp.Body) | ||
| return err | ||
| } | ||
| ` |
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