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render kubecost manifest to managed resource secret
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| package main | ||
|
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| import ( | ||
| "fmt" | ||
|
|
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| "github.com/liquid-reply/gardener-extension-shoot-kubecost/kubecost" | ||
| ) | ||
|
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| func main() { | ||
| out := kubecost.Render(kubecost.KubeCostConfig{ | ||
| ApiKey: "my-kubecost-key", | ||
| }) | ||
| fmt.Println(string(out)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package kubecost | ||
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| import ( | ||
| _ "embed" | ||
| "fmt" | ||
| "os" | ||
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| yttcmd "carvel.dev/ytt/pkg/cmd/template" | ||
| yttui "carvel.dev/ytt/pkg/cmd/ui" | ||
| yttfiles "carvel.dev/ytt/pkg/files" | ||
| ) | ||
|
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| //go:embed kubecost.yaml | ||
| var manifest string | ||
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| type KubeCostConfig struct { | ||
| ApiKey string `yaml:"api_key"` | ||
| } | ||
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| var labelsOverlay string = `#@ load("@ytt:overlay", "overlay") | ||
| #@overlay/match by=overlay.all , expects="1+" | ||
| --- | ||
| metadata: | ||
| labels: | ||
| #@overlay/match missing_ok=True | ||
| app.kubernetes.io/managed-by: gardener-extension-shoot-kubecost | ||
| ` | ||
|
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| func kubeCostTokenOverlay(token string) string { | ||
| return fmt.Sprintf(`#@ load("@ytt:overlay", "overlay") | ||
| #@overlay/match by=overlay.subset({"kind": "ConfigMap", "metadata": {"name": "kubecost-cost-analyzer"}}) | ||
| --- | ||
| data: | ||
| kubecost-token: %q | ||
| `, token) | ||
| } | ||
|
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| func Render(config KubeCostConfig) []byte { | ||
| opts := yttcmd.NewOptions() | ||
| noopUI := yttui.NewCustomWriterTTY(false, os.Stderr, os.Stderr) | ||
|
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| var files []*yttfiles.File | ||
| files = append(files, templateAsFile("manifest.yaml", manifest)) | ||
| files = append(files, templateAsFile("api-key.yaml", kubeCostTokenOverlay(config.ApiKey))) | ||
| files = append(files, templateAsFile("labels.yaml", labelsOverlay)) | ||
| inputs := yttcmd.Input{Files: yttfiles.NewSortedFiles(files)} | ||
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| output := opts.RunWithFiles(inputs, noopUI) | ||
| if output.Err != nil { | ||
| panic(output.Err) | ||
| } | ||
| outputS, err := output.DocSet.AsBytes() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| return outputS | ||
| } | ||
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| type noopWriter struct{} | ||
|
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| func (w noopWriter) Write(data []byte) (int, error) { return len(data), nil } | ||
|
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| func templateAsFile(name, tpl string) *yttfiles.File { | ||
| file, err := yttfiles.NewFileFromSource(yttfiles.NewBytesSource(name, []byte(tpl))) | ||
| if err != nil { | ||
| // should not happen | ||
| panic(err) | ||
| } | ||
|
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| return file | ||
| } |
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