forked from dabeck/kube-resource-explorer
/
main.go
73 lines (57 loc) · 1.85 KB
/
main.go
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package main
import (
"flag"
"fmt"
"os"
"path/filepath"
"runtime"
"strings"
"github.com/morganhoward/kube-resource-explorer/pkg/kube"
"k8s.io/client-go/kubernetes"
_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
"k8s.io/client-go/tools/clientcmd"
)
var GitCommit string
func homeDir() string {
if h := os.Getenv("HOME"); h != "" {
return h
}
return os.Getenv("USERPROFILE") // windows
}
func main() {
var (
namespace = flag.String("namespace", "", "filter by namespace (defaults to all)")
sort = flag.String("sort", "CpuReq", "field to sort by")
reverse = flag.Bool("reverse", false, "reverse sort output")
csv = flag.Bool("csv", false, "Export results to csv file")
version = flag.Bool("version", false, "show binary version")
kubeconfig *string
)
if kubeenv := os.Getenv("KUBECONFIG"); kubeenv != "" {
kubeconfig = flag.String("kubeconfig", kubeenv, "absolute path to the kubeconfig file")
} else if home := homeDir(); home != "" {
kubeconfig = flag.String("kubeconfig", filepath.Join(home, ".kube", "config"), "(optional) absolute path to the kubeconfig file")
} else {
kubeconfig = flag.String("kubeconfig", "", "absolute path to the kubeconfig file")
}
flag.Parse()
if *version {
fmt.Printf("Build information {OS:%q Arch:%q GitCommit:%q, GoVersion:%q}\n", runtime.GOOS, runtime.GOARCH, GitCommit, runtime.Version())
os.Exit(0)
}
config, err := clientcmd.BuildConfigFromFlags("", *kubeconfig)
if err != nil {
panic(err.Error())
}
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
panic(err.Error())
}
k := kube.NewKubeClient(clientset)
r := kube.ContainerResources{}
if !r.Validate(*sort) {
fmt.Printf("\"%s\" is not a valid field. Possible values are:\n\n%s\n", *sort, strings.Join(kube.GetFields(r), ", "))
os.Exit(1)
}
k.ResourceUsage(*namespace, *sort, *reverse, *csv)
}