77 lines
1.7 KiB
Go
77 lines
1.7 KiB
Go
package dao
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import (
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"context"
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"github.com/derailed/k9s/internal/client"
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"github.com/derailed/k9s/internal/render"
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"github.com/rs/zerolog/log"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/tools/clientcmd"
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)
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var (
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_ Accessor = (*Context)(nil)
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_ Switchable = (*Context)(nil)
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)
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// Context represents a kubenetes context.
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type Context struct {
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NonResource
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}
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func (c *Context) config() *client.Config {
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return c.Factory.Client().Config()
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}
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// Get a Context.
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func (c *Context) Get(ctx context.Context, path string) (runtime.Object, error) {
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co, err := c.config().GetContext(path)
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if err != nil {
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return nil, err
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}
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return &render.NamedContext{Name: path, Context: co}, nil
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}
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// List all Contexts on the current cluster.
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func (c *Context) List(_ context.Context, _ string) ([]runtime.Object, error) {
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ctxs, err := c.config().Contexts()
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if err != nil {
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return nil, err
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}
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cc := make([]runtime.Object, 0, len(ctxs))
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for k, v := range ctxs {
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cc = append(cc, render.NewNamedContext(c.config(), k, v))
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}
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return cc, nil
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}
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// MustCurrentContextName return the active context name.
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func (c *Context) MustCurrentContextName() string {
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cl, err := c.config().CurrentContextName()
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if err != nil {
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log.Fatal().Err(err).Msg("Fetching current context")
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}
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return cl
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}
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// Switch to another context.
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func (c *Context) Switch(ctx string) error {
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return c.Factory.Client().SwitchContext(ctx)
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}
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// KubeUpdate modifies kubeconfig default context.
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func (c *Context) KubeUpdate(n string) error {
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config, err := c.config().RawConfig()
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if err != nil {
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return err
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}
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if err := c.Switch(n); err != nil {
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return err
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}
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return clientcmd.ModifyConfig(
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clientcmd.NewDefaultPathOptions(), config, true,
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)
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}
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