55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
package karmadactl
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import (
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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)
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// KarmadaConfig provides a rest config based on the filesystem kubeconfig (via
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// pathOptions) and context in order to talk to the control plane
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// and the joining kubernetes cluster.
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type KarmadaConfig interface {
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// GetRestConfig used to get a cluster's rest config.
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GetRestConfig(context, kubeconfigPath string) (*rest.Config, error)
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// GetClientConfig returns a ClientConfig from kubeconfigPath.
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// If kubeconfigPath is empty, will search KUBECONFIG from default path.
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// If context is not empty, the returned ClientConfig's current-context is the input context.
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GetClientConfig(context, kubeconfigPath string) clientcmd.ClientConfig
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}
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// karmadaConfig implements the KarmadaConfig interface.
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type karmadaConfig struct {
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pathOptions *clientcmd.PathOptions
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}
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// NewKarmadaConfig creates a karmadaConfig for `karmadactl` commands.
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func NewKarmadaConfig(pathOptions *clientcmd.PathOptions) KarmadaConfig {
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return &karmadaConfig{
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pathOptions: pathOptions,
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}
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}
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func (a *karmadaConfig) GetRestConfig(context, kubeconfigPath string) (*rest.Config, error) {
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clientConfig := a.GetClientConfig(context, kubeconfigPath)
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restConfig, err := clientConfig.ClientConfig()
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if err != nil {
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return nil, err
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}
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return restConfig, nil
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}
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// GetClientConfig is a helper method to create a client config from the
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// context and kubeconfig passed as arguments.
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func (a *karmadaConfig) GetClientConfig(context, kubeconfigPath string) clientcmd.ClientConfig {
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loadingRules := *a.pathOptions.LoadingRules
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loadingRules.Precedence = a.pathOptions.GetLoadingPrecedence()
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loadingRules.ExplicitPath = kubeconfigPath
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overrides := &clientcmd.ConfigOverrides{
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CurrentContext: context,
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}
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return clientcmd.NewNonInteractiveDeferredLoadingClientConfig(&loadingRules, overrides)
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}
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