airshipctl/pkg/config/options.go
Ian Howell dc0979b65b [#42] Refactor flag operations to be uniform
This also increases unit test coverage

Change-Id: I324954a1216f2204ff3977c05eb9bd087cd87795
2020-02-20 11:25:41 -06:00

132 lines
3.0 KiB
Go

/*
Copyright 2020 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package config
// TODO(howell): Switch to strongly-typed errors
import (
"errors"
"fmt"
"os"
)
type AuthInfoOptions struct {
Name string
ClientCertificate string
ClientKey string
Token string
Username string
Password string
EmbedCertData bool
}
type ContextOptions struct {
Name string
ClusterType string
CurrentContext bool
Cluster string
AuthInfo string
Manifest string
Namespace string
}
type ClusterOptions struct {
Name string
ClusterType string
Server string
InsecureSkipTLSVerify bool
CertificateAuthority string
EmbedCAData bool
}
func (o *AuthInfoOptions) Validate() error {
if o.Token != "" && (o.Username != "" || o.Password != "") {
return fmt.Errorf("you cannot specify more than one authentication method at the same time: --%v or --%v/--%v",
FlagBearerToken, FlagUsername, FlagPassword)
}
if !o.EmbedCertData {
return nil
}
if err := checkExists(FlagCertFile, o.ClientCertificate); err != nil {
return err
}
if err := checkExists(FlagKeyFile, o.ClientKey); err != nil {
return err
}
return nil
}
func (o *ContextOptions) Validate() error {
if o.Name == "" {
return errors.New("you must specify a non-empty context name")
}
// If the user simply wants to change the current context, no further validation is needed
if o.CurrentContext {
return nil
}
// If the cluster-type was specified, verify that it's valid
if o.ClusterType != "" {
if err := ValidClusterType(o.ClusterType); err != nil {
return err
}
}
// TODO Manifest, Cluster could be validated against the existing config maps
return nil
}
func (o *ClusterOptions) Validate() error {
if o.Name == "" {
return errors.New("you must specify a non-empty cluster name")
}
err := ValidClusterType(o.ClusterType)
if err != nil {
return err
}
if o.InsecureSkipTLSVerify && o.CertificateAuthority != "" {
return fmt.Errorf("you cannot specify a %s and %s mode at the same time", FlagCAFile, FlagInsecure)
}
if !o.EmbedCAData {
return nil
}
if err := checkExists(FlagCAFile, o.CertificateAuthority); err != nil {
return err
}
return nil
}
func checkExists(flagName, path string) error {
if path == "" {
return fmt.Errorf("you must specify a --%s to embed", flagName)
}
if _, err := os.Stat(path); err != nil {
return fmt.Errorf("could not read %s data from '%s': %v", flagName, path, err)
}
return nil
}