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| 1 | +package admission |
| 2 | + |
| 3 | +import ( |
| 4 | + "errors" |
| 5 | + "fmt" |
| 6 | + command "github.com/esonhugh/k8spider/cmd" |
| 7 | + "github.com/esonhugh/k8spider/pkg/admission-webhook/reviewer" |
| 8 | + "github.com/guonaihong/gout" |
| 9 | + log "github.com/sirupsen/logrus" |
| 10 | + "github.com/spf13/cobra" |
| 11 | + v1 "k8s.io/api/admission/v1" |
| 12 | + "os" |
| 13 | +) |
| 14 | + |
| 15 | +var Opts = struct { |
| 16 | + As string |
| 17 | + Group []string |
| 18 | + Indent int |
| 19 | + Action string |
| 20 | + SendToController bool |
| 21 | + ControllerEndpoint string |
| 22 | + |
| 23 | + FileContent [][]byte |
| 24 | +}{} |
| 25 | + |
| 26 | +func init() { |
| 27 | + AdmitCmd.Flags().StringVarP(&Opts.As, "as", "a", "", "as username ") |
| 28 | + AdmitCmd.Flags().StringSliceVarP(&Opts.Group, "group", "g", []string{}, "group") |
| 29 | + AdmitCmd.Flags().IntVarP(&Opts.Indent, "indent", "I", 2, "indent") |
| 30 | + AdmitCmd.Flags().StringVarP(&Opts.Action, "action", "A", "create", "action") |
| 31 | + AdmitCmd.Flags().BoolVarP(&Opts.SendToController, "send-to-controller", "s", false, "send to controller") |
| 32 | + AdmitCmd.Flags().StringVarP(&Opts.ControllerEndpoint, "controller-endpoint", "e", "", "controller endpoint") |
| 33 | + command.RootCmd.AddCommand(AdmitCmd) |
| 34 | +} |
| 35 | + |
| 36 | +var AdmitCmd = &cobra.Command{ |
| 37 | + Use: "admit [file]", |
| 38 | + Short: "admit is a tool to testing kubernetes admission controllers", |
| 39 | + Long: "admit is a tool to testing kubernetes admission controllers", |
| 40 | + PersistentPreRunE: func(cmd *cobra.Command, args []string) error { |
| 41 | + if Opts.SendToController { |
| 42 | + if Opts.ControllerEndpoint == "" { |
| 43 | + return errors.New("if send to controller is ture, controller-endpoint can't be empty") |
| 44 | + } |
| 45 | + } |
| 46 | + if len(args) == 0 { |
| 47 | + return errors.New("file args can't be empty") |
| 48 | + } |
| 49 | + for _, file := range args { |
| 50 | + f, err := os.ReadFile(file) |
| 51 | + if err != nil { |
| 52 | + return err |
| 53 | + } |
| 54 | + Opts.FileContent = append(Opts.FileContent, f) |
| 55 | + } |
| 56 | + return nil |
| 57 | + }, |
| 58 | + Run: func(cmd *cobra.Command, args []string) { |
| 59 | + for _, input := range Opts.FileContent { |
| 60 | + content, err := reviewer.CreateAdmissionReviewRequest(input, Opts.Action, Opts.As, Opts.Group, Opts.Indent) |
| 61 | + if err != nil { |
| 62 | + log.Errorf("create admission review request failed: %v", err) |
| 63 | + return |
| 64 | + } |
| 65 | + log.Debugf("admission review request: %v", string(content)) |
| 66 | + if Opts.SendToController { |
| 67 | + log.Tracef("sending to the controller: %v", Opts.ControllerEndpoint) |
| 68 | + gp := gout.POST(Opts.ControllerEndpoint).SetJSON(content) |
| 69 | + if command.Opts.Verbose > 0 { |
| 70 | + gp.Debug(true) |
| 71 | + } |
| 72 | + var resp v1.AdmissionReview |
| 73 | + err := gp.BindJSON(&resp).Do() |
| 74 | + if err != nil { |
| 75 | + log.Errorf("send to controller failed: %v", err) |
| 76 | + } |
| 77 | + if resp.Response == nil { |
| 78 | + log.Errorf("get empty admission reviewed response") |
| 79 | + } |
| 80 | + log.Infof("get admission reviewed response") |
| 81 | + log.Infof("Allowed: %v", resp.Response.Allowed) |
| 82 | + log.Infof("UID: %v", resp.Response.UID) |
| 83 | + log.Infof("PatchType: %v", *resp.Response.PatchType) |
| 84 | + log.Infof("Patch: %v", string(resp.Response.Patch)) |
| 85 | + for k, v := range resp.Response.AuditAnnotations { |
| 86 | + log.Infof("AuditAnnotation[%v]: %v", k, v) |
| 87 | + } |
| 88 | + for _, w := range resp.Response.Warnings { |
| 89 | + log.Infof("Warning: %v", w) |
| 90 | + } |
| 91 | + return |
| 92 | + } else { |
| 93 | + fmt.Println(string(content)) |
| 94 | + if command.Opts.OutputFile != "" { |
| 95 | + err := os.WriteFile(command.Opts.OutputFile, content, 0644) |
| 96 | + if err != nil { |
| 97 | + log.Errorf("write to file failed: %v", err) |
| 98 | + } |
| 99 | + } |
| 100 | + } |
| 101 | + } |
| 102 | + }, |
| 103 | +} |
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