-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
ssh.go
139 lines (119 loc) · 3.43 KB
/
ssh.go
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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
//go:build amd64 || arm64
package machine
import (
"fmt"
"net/url"
"github.com/containers/podman/v5/pkg/machine/define"
"github.com/containers/podman/v5/pkg/machine/env"
"github.com/containers/common/pkg/completion"
"github.com/containers/podman/v5/cmd/podman/registry"
"github.com/containers/podman/v5/cmd/podman/utils"
"github.com/containers/podman/v5/pkg/machine"
"github.com/containers/podman/v5/pkg/machine/vmconfigs"
"github.com/spf13/cobra"
)
var (
sshCmd = &cobra.Command{
Use: "ssh [options] [NAME] [COMMAND [ARG ...]]",
Short: "SSH into an existing machine",
Long: "SSH into a managed virtual machine ",
PersistentPreRunE: machinePreRunE,
RunE: ssh,
Example: `podman machine ssh podman-machine-default
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,
})
flags := sshCmd.Flags()
usernameFlagName := "username"
flags.StringVar(&sshOpts.Username, usernameFlagName, "", "Username to use when ssh-ing into the VM.")
_ = sshCmd.RegisterFlagCompletionFunc(usernameFlagName, completion.AutocompleteNone)
}
// TODO Remember that this changed upstream and needs to updated as such!
func ssh(cmd *cobra.Command, args []string) error {
var (
err error
mc *vmconfigs.MachineConfig
validVM bool
)
dirs, err := env.GetMachineDirs(provider.VMType())
if err != nil {
return err
}
// Set the VM to default
vmName := defaultMachineName
// 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 {
// note: previous incantations of this up by a specific name
// and errors were ignored. this error is not ignored because
// it implies podman cannot read its machine files, which is bad
machines, err := vmconfigs.LoadMachinesInDir(dirs)
if err != nil {
return err
}
mc, validVM = machines[args[0]]
if validVM {
vmName = args[0]
} else {
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.Args = args
}
}
// If the machine config was not loaded earlier, we load it now
if mc == nil {
mc, err = vmconfigs.LoadMachineByName(vmName, dirs)
if err != nil {
return fmt.Errorf("vm %s not found: %w", vmName, err)
}
}
if !validVM && sshOpts.Username == "" {
sshOpts.Username, err = remoteConnectionUsername()
if err != nil {
return err
}
}
state, err := provider.State(mc, false)
if err != nil {
return err
}
if state != define.Running {
return fmt.Errorf("vm %q is not running", mc.Name)
}
username := sshOpts.Username
if username == "" {
username = mc.SSH.RemoteUsername
}
err = machine.CommonSSHShell(username, mc.SSH.IdentityPath, mc.Name, mc.SSH.Port, sshOpts.Args)
return utils.HandleOSExecError(err)
}
func remoteConnectionUsername() (string, error) {
con, err := registry.PodmanConfig().ContainersConfDefaultsRO.GetConnection("", true)
if err != nil {
return "", err
}
uri, err := url.Parse(con.URI)
if err != nil {
return "", err
}
username := uri.User.String()
return username, nil
}