golang yaml LoadYAML

 

 

type Config struct {
    Kube struct {
        OutCluster bool   `yaml:"outCluster" json:"outCluster"`
        ConfigPath string `yaml:"configPath" json:"configPath" default:"kubeconfig.yaml"`
    } `yaml:"kube" json:"kube"`
}

 

root@ubuntu:~/crd_demo# cat etc/config.yaml
kube:
  outCluster: true
  configPath: /etc/kubernetes/admin.conf
root@ubuntu:~/crd_demo# 

 

 

 

if err := utils.LoadYAML(path, &cfg); err != nil {
        return nil, err
    }

    kubeConfig, err := func() (*rest.Config, error) {
        if !cfg.Kube.OutCluster {
            return rest.InClusterConfig()
        }
        return clientcmd.BuildConfigFromFlags(
            "", cfg.Kube.ConfigPath)
    }()

 

 

(dlv) p cfg.Kube
struct { OutCluster bool "yaml:\"outCluster\" json:\"outCluster\""; ConfigPath string "yaml:\"configPath\" json:\"configPath\" default:\"kubeconfig.yaml\"" } {
        OutCluster: true,
        ConfigPath: "/etc/kubernetes/admin.conf",}
(dlv) quit

 

 

 

root@ubuntu:~/crd_demo# dlv exec  ./igh
Type 'help' for list of commands.
(dlv) b kube/controller.go:76
Breakpoint 1 (enabled) set at 0xce713c for /kube.NewClient() ./kube/controller.go:76
(dlv) c
>  /kube.NewClient() ./kube/controller.go:76 (hits goroutine(1):1 total:1) (PC: 0xce713c)
Warning: debugging optimized function
    71:         recorder record.EventRecorder
    72: }
    73:
    74: func NewClient(ctx context.Context, path string) (*Client, error) {
    75:         var cfg Config
=>  76:         if err := utils.LoadYAML(path, &cfg); err != nil {
    77:                 return nil, err
    78:         }
    79:
    80:         kubeConfig, err := func() (*rest.Config, error) {
    81:                 if !cfg.Kube.OutCluster {
(dlv) n
> kube.NewClient() ./kube/controller.go:86 (PC: 0xce716c)
Warning: debugging optimized function
    81:                 if !cfg.Kube.OutCluster {
    82:                         return rest.InClusterConfig()
    83:                 }
    84:                 return clientcmd.BuildConfigFromFlags(
    85:                         "", cfg.Kube.ConfigPath)
=>  86:         }()
    87:         if err != nil {
    88:                 return nil, err
    89:         }
    90:
    91:         // client
(dlv) p  cfg
 kube.Config {
        Kube: struct { OutCluster bool "yaml:\"outCluster\" json:\"outCluster\""; ConfigPath string "yaml:\"configPath\" json:\"configPath\" default:\"kubeconfig.yaml\"" } {
                OutCluster: true,
                ConfigPath: "/etc/kubernetes/admin.conf",},}
(dlv) p cfg.Kube
struct { OutCluster bool "yaml:\"outCluster\" json:\"outCluster\""; ConfigPath string "yaml:\"configPath\" json:\"configPath\" default:\"kubeconfig.yaml\"" } {
        OutCluster: true,
        ConfigPath: "/etc/kubernetes/admin.conf",}
(dlv)