talos/internal/pkg/kubeconfig/kubeconfig.go
Tim Jones 95d900de77
feat: use kubeconfig env var
When interating with the kubeconfig it can be
expected that a user may have the KUBECONFIG
environment variable set, so we need to use
it when appropriate.
Closes #5091

Signed-off-by: Tim Jones <tim.jones@siderolabs.com>
2022-03-31 15:30:26 +02:00

37 lines
932 B
Go

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Package kubeconfig provides Kubernetes config file handling.
package kubeconfig
import (
"fmt"
"os"
"path/filepath"
)
// DefaultPath returns path to ~/.kube/config.
func DefaultPath() (string, error) {
home, err := os.UserHomeDir()
if err != nil {
return "", err
}
return filepath.Join(home, ".kube/config"), nil
}
// SinglePath parses KUBECONFIG and the default kubeconfig file location
// and ensures there is only one to return.
func SinglePath() (string, error) {
envVarFilePaths := filepath.SplitList(os.Getenv("KUBECONFIG"))
switch len(envVarFilePaths) {
case 0:
return DefaultPath()
case 1:
return envVarFilePaths[0], nil
default:
return "", fmt.Errorf("multiple kubeconfig files defined")
}
}