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Provide more verbose empty config error based on the context

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This commit is contained in:
Maciej Szulik 2020-03-03 18:42:19 +01:00
parent b19ad9e7a7
commit 07dc17ffd9
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GPG Key ID: F15E55D276FA84C4
2 changed files with 19 additions and 3 deletions
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20
staging/src/k8s.io/cli-runtime/pkg/genericclioptions/config_flags.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package genericclioptions
import (
"errors"
"os"
"path/filepath"
"regexp"
@ -54,7 +55,17 @@ const (
flagHTTPCacheDir = "cache-dir"
)
var defaultCacheDir = filepath.Join(homedir.HomeDir(), ".kube", "http-cache")
var (
defaultCacheDir = filepath.Join(homedir.HomeDir(), ".kube", "http-cache")
ErrEmptyConfig = errors.New(`Missing or incomplete configuration info. Please point to an existing, complete config file:
1. Via the command-line flag --kubeconfig
2. Via the KUBECONFIG environment variable
3. In your home directory as ~/.kube/config
To view or setup config directly use the 'config' command.`)
)
// RESTClientGetter is an interface that the ConfigFlags describe to provide an easier way to mock for commands
// and eliminate the direct coupling to a struct type. Users may wish to duplicate this type in their own packages
@ -108,7 +119,12 @@ type ConfigFlags struct {
// to a .kubeconfig file, loading rules, and config flag overrides.
// Expects the AddFlags method to have been called.
func (f *ConfigFlags) ToRESTConfig() (*rest.Config, error) {
return f.ToRawKubeConfigLoader().ClientConfig()
config, err := f.ToRawKubeConfigLoader().ClientConfig()
// replace client-go's ErrEmptyConfig error with our custom, more verbose version
if clientcmd.IsEmptyConfig(err) {
return nil, ErrEmptyConfig
}
return config, err
}
// ToRawKubeConfigLoader binds config flag values to config overrides

2
staging/src/k8s.io/client-go/tools/clientcmd/validation.go
View File

@ -30,7 +30,7 @@ import (
var (
ErrNoContext = errors.New("no context chosen")
ErrEmptyConfig = errors.New("no configuration has been provided")
ErrEmptyConfig = errors.New("no configuration has been provided, try setting KUBERNETES_MASTER environment variable")
// message is for consistency with old behavior
ErrEmptyCluster = errors.New("cluster has no server defined")
)