1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
// +build amd64,!windows arm64,!windows
package machine
import (
"net/url"
"github.com/containers/common/pkg/config"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/pkg/machine"
"github.com/containers/podman/v3/pkg/machine/qemu"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
sshCmd = &cobra.Command{
Use: "ssh [NAME] [COMMAND [ARG ...]]",
Short: "SSH into an existing machine",
Long: "SSH into a managed virtual machine ",
RunE: ssh,
Example: `podman machine ssh myvm
podman machine ssh myvm echo hello`,
ValidArgsFunction: autocompleteMachineSSH,
}
)
var (
sshOpts machine.SSHOptions
)
func init() {
sshCmd.Flags().SetInterspersed(false)
registry.Commands = append(registry.Commands, registry.CliCommand{
Command: sshCmd,
Parent: machineCmd,
})
}
func ssh(cmd *cobra.Command, args []string) error {
var (
err error
validVM bool
vm machine.VM
vmType string
)
// Set the VM to default
vmName := defaultMachineName
// If we're not given a VM name, use the remote username from the connection config
if len(args) == 0 {
sshOpts.Username, err = remoteConnectionUsername()
if err != nil {
return err
}
}
// If len is greater than 0, it means we may have been
// provided the VM name. If so, we check. The VM name,
// if provided, must be in args[0].
if len(args) > 0 {
switch vmType {
default:
validVM, err = qemu.IsValidVMName(args[0])
if err != nil {
return err
}
if validVM {
vmName = args[0]
} else {
sshOpts.Username, err = remoteConnectionUsername()
if err != nil {
return err
}
sshOpts.Args = append(sshOpts.Args, args[0])
}
}
}
// If len is greater than 1, it means we might have been
// given a vmname and args or just args
if len(args) > 1 {
if validVM {
sshOpts.Args = args[1:]
} else {
sshOpts.Username, err = remoteConnectionUsername()
if err != nil {
return err
}
sshOpts.Args = args
}
}
switch vmType {
default:
vm, err = qemu.LoadVMByName(vmName)
}
if err != nil {
return errors.Wrapf(err, "vm %s not found", vmName)
}
return vm.SSH(vmName, sshOpts)
}
func remoteConnectionUsername() (string, error) {
cfg, err := config.ReadCustomConfig()
if err != nil {
return "", err
}
dest, _, err := cfg.ActiveDestination()
if err != nil {
return "", err
}
uri, err := url.Parse(dest)
if err != nil {
return "", err
}
username := uri.User.String()
return username, nil
}
|
