/
kubenventoree.go
98 lines (84 loc) · 2.26 KB
/
kubenventoree.go
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package main
import (
"context"
"encoding/json"
"fmt"
"kubenventoree/kubenventoree"
"log"
"os"
"github.com/alecthomas/kong"
"gopkg.in/yaml.v2"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
var cliOptions kubenventoree.Cmdoptions
type DiscoveryResult struct {
ImageInventory *kubenventoree.ClusterImageInventory `json:"image_inventory"`
WokloadInventory *kubenventoree.WorkloadInventory `json:"workload_inventory"`
ClusterInfo *kubenventoree.ClusterInfo `json:"cluster_info"`
}
func main() {
ctx := kong.Parse(&cliOptions)
//fmt.Printf("Command: %s\n", ctx.Command())
//fmt.Printf("Struct: %s %s", cliOptions.Output, cliOptions.OutputFormat)
cs, err := kubenventoree.GetK8sClientset(cliOptions.KubeConfigPath)
if err != nil {
log.Fatalf("Cannot access kubernetes config file (%s)", err)
ctx.Exit(1)
}
_, err = cs.CoreV1().Namespaces().List(context.Background(), metav1.ListOptions{})
if err != nil {
log.Fatalf("Cannot access kubernetes API (%s)", err)
ctx.Exit(1)
}
result := DiscoveryResult{}
k := kubenventoree.Kubenventoree{Options: &cliOptions, ClientSet: cs}
result.ImageInventory, err = k.ReadImageInventory()
if err != nil {
log.Fatalf("Cannot read image inventory (%s)", err)
ctx.Exit(1)
}
result.WokloadInventory, err = k.ReadWorkloadInventory()
if err != nil {
log.Fatalf("Cannot read workload inventory (%s)", err)
ctx.Exit(1)
}
result.ClusterInfo, err = k.ReadClusterInfo()
if err != nil {
log.Fatalf("Cannot read cluster information (%s)", err)
ctx.Exit(1)
}
var result_text string
switch cliOptions.OutputFormat {
case "json":
{
result_bytes, err := json.Marshal(result)
if err != nil {
log.Fatalf("json conversion failed %s", err)
}
result_text = string(result_bytes)
}
case "yaml":
{
result_bytes, err := yaml.Marshal(result)
if err != nil {
log.Fatalf("yaml conversion failed %s", err)
}
result_text = string(result_bytes)
}
default:
{
log.Fatalf("Unsupported output format %s", cliOptions.OutputFormat)
}
}
if cliOptions.Output == "-" {
fmt.Println(result_text)
} else {
f, err := os.Create(cliOptions.Output)
if err != nil {
log.Fatalf("cannot open output file (%s)", err)
}
defer f.Close()
f.WriteString(result_text)
}
os.Exit(0)
}