k9s/internal/config/data/context.go

90 lines
2.0 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of K9s
package data
import (
"os"
"sync"
"github.com/derailed/k9s/internal/client"
"k8s.io/client-go/tools/clientcmd/api"
)
// Context tracks K9s context configuration.
type Context struct {
ClusterName string `yaml:"cluster,omitempty"`
ReadOnly *bool `yaml:"readOnly,omitempty"`
Skin string `yaml:"skin,omitempty"`
Namespace *Namespace `yaml:"namespace"`
View *View `yaml:"view"`
FeatureGates FeatureGates `yaml:"featureGates"`
Proxy *Proxy `yaml:"proxy"`
mx sync.RWMutex
}
// NewContext creates a new cluster configuration.
func NewContext() *Context {
return &Context{
Namespace: NewNamespace(),
View: NewView(),
FeatureGates: NewFeatureGates(),
}
}
// NewContextFromConfig returns a config based on a kubecontext.
func NewContextFromConfig(cfg *api.Context) *Context {
ct := NewContext()
ct.Namespace, ct.ClusterName = NewActiveNamespace(cfg.Namespace), cfg.Cluster
return ct
}
// NewContextFromKubeConfig returns a new instance based on kubesettings or an error.
func NewContextFromKubeConfig(ks KubeSettings) (*Context, error) {
ct, err := ks.CurrentContext()
if err != nil {
return nil, err
}
return NewContextFromConfig(ct), nil
}
func (c *Context) merge(old *Context) {
if old == nil || old.Namespace == nil {
return
}
if c.Namespace == nil {
c.Namespace = NewNamespace()
}
c.Namespace.merge(old.Namespace)
}
func (c *Context) GetClusterName() string {
c.mx.RLock()
defer c.mx.RUnlock()
return c.ClusterName
}
// Validate ensures a context config is tip top.
func (c *Context) Validate(conn client.Connection, contextName, clusterName string) {
c.mx.Lock()
defer c.mx.Unlock()
c.ClusterName = clusterName
if b := os.Getenv(envFGNodeShell); b != "" {
c.FeatureGates.NodeShell = defaultFGNodeShell()
}
if c.Namespace == nil {
c.Namespace = NewNamespace()
}
c.Namespace.Validate(conn)
if c.View == nil {
c.View = NewView()
}
c.View.Validate()
}