66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
/*
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Copyright 2017, 2019 the Velero contributors.
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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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"fmt"
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"runtime"
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"github.com/pkg/errors"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/clientcmd"
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"github.com/vmware-tanzu/velero/pkg/buildinfo"
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)
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// Config returns a *rest.Config, using either the kubeconfig (if specified) or an in-cluster
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// configuration.
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func Config(kubeconfig, kubecontext, baseName string, qps float32, burst int) (*rest.Config, error) {
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loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
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loadingRules.ExplicitPath = kubeconfig
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configOverrides := &clientcmd.ConfigOverrides{CurrentContext: kubecontext}
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kubeConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, configOverrides)
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clientConfig, err := kubeConfig.ClientConfig()
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if err != nil {
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return nil, errors.Wrap(err, "error finding Kubernetes API server config in --kubeconfig, $KUBECONFIG, or in-cluster configuration")
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}
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if qps > 0.0 {
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clientConfig.QPS = qps
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}
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if burst > 0 {
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clientConfig.Burst = burst
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}
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clientConfig.UserAgent = buildUserAgent(
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baseName,
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buildinfo.Version,
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buildinfo.FormattedGitSHA(),
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runtime.GOOS,
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runtime.GOARCH,
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)
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return clientConfig, nil
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}
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// buildUserAgent builds a User-Agent string from given args.
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func buildUserAgent(command, version, formattedSha, os, arch string) string {
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return fmt.Sprintf(
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"%s/%s (%s/%s) %s", command, version, os, arch, formattedSha)
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}
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