github.com/mirantis/virtlet@v1.5.2-0.20191204181327-1659b8a48e9b/pkg/tools/ssh_test.go (about)

     1  /*
     2  Copyright 2018 Mirantis
     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 tools
    18  
    19  import (
    20  	"bytes"
    21  	"testing"
    22  )
    23  
    24  func TestSSHCommand(t *testing.T) {
    25  	c := &fakeKubeClient{
    26  		t: t,
    27  		virtletPods: map[string]string{
    28  			"kube-node-1": "virtlet-foo42",
    29  		},
    30  		vmPods: map[string]VMPodInfo{
    31  			"cirros": {
    32  				NodeName:       "kube-node-1",
    33  				VirtletPodName: "virtlet-foo42",
    34  				ContainerID:    "cc349e91-dcf7-4f11-a077-36c3673c3fc4",
    35  				ContainerName:  "foocontainer",
    36  			},
    37  		},
    38  		expectedPortForwards: []string{
    39  			"cirros/default: :22",
    40  		},
    41  	}
    42  	var out bytes.Buffer
    43  	cmd := NewSSHCmd(c, &out, "/bin/echo")
    44  	cmd.SetArgs([]string{"user@cirros", "--", "ls", "-l", "/"})
    45  	cmd.SilenceUsage = true
    46  	cmd.SilenceErrors = true
    47  	if err := cmd.Execute(); err != nil {
    48  		t.Fatalf("ssh error: %v", err)
    49  	}
    50  	expectedCommand := "-q -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p 4242 user@127.0.0.1 ls -l /\n"
    51  	if out.String() != expectedCommand {
    52  		t.Errorf("bad ssh command line: %q instead of %q", out.String(), expectedCommand)
    53  	}
    54  	// TODO: support alternative remote ports
    55  }
    56  
    57  func TestSSHErrorOnNonVMPod(t *testing.T) {
    58  	c := &fakeKubeClient{
    59  		t: t,
    60  		virtletPods: map[string]string{
    61  			"kube-node-1": "virtlet-foo42",
    62  		},
    63  	}
    64  	var out bytes.Buffer
    65  	cmd := NewSSHCmd(c, &out, "/bin/echo")
    66  	cmd.SetArgs([]string{"user@cirros", "--", "ls", "-l", "/"})
    67  	cmd.SilenceUsage = true
    68  	cmd.SilenceErrors = true
    69  	if err := cmd.Execute(); err == nil {
    70  		t.Errorf("didn't get an error for non-VM pod")
    71  	}
    72  }