ssh.go

Documentation: k8s.io/kubernetes/test/e2e/framework/node

     1  /*
     2  Copyright 2019 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package node
    18  
    19  import (
    20  	"context"
    21  	"time"
    22  
    23  	"k8s.io/apimachinery/pkg/util/wait"
    24  	"k8s.io/kubernetes/test/e2e/framework"
    25  	e2ekubectl "k8s.io/kubernetes/test/e2e/framework/kubectl"
    26  )
    27  
    28  // WaitForSSHTunnels waits for establishing SSH tunnel to busybox pod.
    29  func WaitForSSHTunnels(ctx context.Context, namespace string) {
    30  	framework.Logf("Waiting for SSH tunnels to establish")
    31  	e2ekubectl.RunKubectl(namespace, "run", "ssh-tunnel-test",
    32  		"--image=busybox",
    33  		"--restart=Never",
    34  		"--command", "--",
    35  		"echo", "Hello")
    36  	defer e2ekubectl.RunKubectl(namespace, "delete", "pod", "ssh-tunnel-test")
    37  
    38  	// allow up to a minute for new ssh tunnels to establish
    39  	wait.PollUntilContextTimeout(ctx, 5*time.Second, time.Minute, true, func(ctx context.Context) (bool, error) {
    40  		_, err := e2ekubectl.RunKubectl(namespace, "logs", "ssh-tunnel-test")
    41  		return err == nil, nil
    42  	})
    43  }
    44
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