73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
/*
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Copyright 2017 Heptio Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package client
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import (
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"os"
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"github.com/spf13/pflag"
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"github.com/heptio/ark/pkg/generated/clientset"
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)
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// Factory knows how to create an ArkClient.
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type Factory interface {
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// BindFlags binds common flags such as --kubeconfig to the passed-in FlagSet.
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BindFlags(flags *pflag.FlagSet)
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// Client returns an ArkClient. It uses the following priority to specify the cluster
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// configuration: --kubeconfig flag, KUBECONFIG environment variable, in-cluster configuration.
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Client() (clientset.Interface, error)
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}
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type factory struct {
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flags *pflag.FlagSet
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kubeconfig string
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}
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// NewFactory returns a Factory.
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func NewFactory() Factory {
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f := &factory{
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flags: pflag.NewFlagSet("", pflag.ContinueOnError),
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}
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f.flags.StringVar(&f.kubeconfig, "kubeconfig", "", "Path to the kubeconfig file to use to talk to the Kubernetes apiserver. If unset, try the environment variable KUBECONFIG, as well as in-cluster configuration")
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return f
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}
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func (f *factory) BindFlags(flags *pflag.FlagSet) {
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flags.AddFlagSet(f.flags)
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}
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func (f *factory) Client() (clientset.Interface, error) {
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kubeconfig := f.kubeconfig
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if kubeconfig == "" {
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// if the command line flag was not specified, try the environment variable
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kubeconfig = os.Getenv("KUBECONFIG")
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}
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clientConfig, err := Config(kubeconfig)
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if err != nil {
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return nil, err
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}
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arkClient, err := clientset.NewForConfig(clientConfig)
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if err != nil {
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return nil, err
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}
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return arkClient, nil
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}
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