mirror of https://github.com/k3s-io/k3s
76 lines
2.4 KiB
Go
76 lines
2.4 KiB
Go
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/*
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Copyright 2018 The Kubernetes Authors.
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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 polymorphichelpers
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import (
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"errors"
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"fmt"
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"os"
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"sort"
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"time"
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"k8s.io/api/core/v1"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/client-go/rest"
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coreinternal "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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"k8s.io/kubernetes/pkg/controller"
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"k8s.io/kubernetes/pkg/kubectl/genericclioptions"
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)
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func logsForObject(restClientGetter genericclioptions.RESTClientGetter, object, options runtime.Object, timeout time.Duration) (*rest.Request, error) {
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clientConfig, err := restClientGetter.ToRESTConfig()
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if err != nil {
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return nil, err
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}
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clientset, err := internalclientset.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 logsForObjectWithClient(clientset, object, options, timeout)
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}
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// this is split for easy test-ability
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func logsForObjectWithClient(clientset internalclientset.Interface, object, options runtime.Object, timeout time.Duration) (*rest.Request, error) {
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opts, ok := options.(*coreinternal.PodLogOptions)
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if !ok {
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return nil, errors.New("provided options object is not a PodLogOptions")
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}
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switch t := object.(type) {
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case *coreinternal.Pod:
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return clientset.Core().Pods(t.Namespace).GetLogs(t.Name, opts), nil
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case *corev1.Pod:
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return clientset.Core().Pods(t.Namespace).GetLogs(t.Name, opts), nil
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}
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namespace, selector, err := SelectorsForObject(object)
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if err != nil {
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return nil, fmt.Errorf("cannot get the logs from %T: %v", object, err)
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}
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sortBy := func(pods []*v1.Pod) sort.Interface { return controller.ByLogging(pods) }
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pod, numPods, err := GetFirstPod(clientset.Core(), namespace, selector.String(), timeout, sortBy)
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if err != nil {
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return nil, err
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}
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if numPods > 1 {
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fmt.Fprintf(os.Stderr, "Found %v pods, using pod/%v\n", numPods, pod.Name)
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}
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return clientset.Core().Pods(pod.Namespace).GetLogs(pod.Name, opts), nil
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}
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