115 lines
2.6 KiB
Go
115 lines
2.6 KiB
Go
//go:build amd64 || arm64
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// +build amd64 arm64
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package machine
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import (
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"fmt"
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"net/url"
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"github.com/containers/common/pkg/completion"
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"github.com/containers/common/pkg/config"
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"github.com/containers/podman/v4/cmd/podman/registry"
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"github.com/containers/podman/v4/cmd/podman/utils"
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"github.com/containers/podman/v4/pkg/machine"
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"github.com/spf13/cobra"
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)
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var (
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sshCmd = &cobra.Command{
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Use: "ssh [options] [NAME] [COMMAND [ARG ...]]",
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Short: "SSH into an existing machine",
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Long: "SSH into a managed virtual machine ",
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PersistentPreRunE: rootlessOnly,
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RunE: ssh,
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Example: `podman machine ssh myvm
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podman machine ssh myvm echo hello`,
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ValidArgsFunction: autocompleteMachineSSH,
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}
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)
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var (
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sshOpts machine.SSHOptions
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)
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func init() {
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sshCmd.Flags().SetInterspersed(false)
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registry.Commands = append(registry.Commands, registry.CliCommand{
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Command: sshCmd,
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Parent: machineCmd,
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})
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flags := sshCmd.Flags()
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usernameFlagName := "username"
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flags.StringVar(&sshOpts.Username, usernameFlagName, "", "Username to use when ssh-ing into the VM.")
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_ = sshCmd.RegisterFlagCompletionFunc(usernameFlagName, completion.AutocompleteNone)
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}
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func ssh(cmd *cobra.Command, args []string) error {
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var (
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err error
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validVM bool
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vm machine.VM
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)
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// Set the VM to default
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vmName := defaultMachineName
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provider := GetSystemDefaultProvider()
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// If len is greater than 0, it means we may have been
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// provided the VM name. If so, we check. The VM name,
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// if provided, must be in args[0].
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if len(args) > 0 {
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validVM, err = provider.IsValidVMName(args[0])
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if err != nil {
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return err
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}
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if validVM {
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vmName = args[0]
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} else {
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sshOpts.Args = append(sshOpts.Args, args[0])
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}
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}
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// If len is greater than 1, it means we might have been
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// given a vmname and args or just args
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if len(args) > 1 {
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if validVM {
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sshOpts.Args = args[1:]
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} else {
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sshOpts.Args = args
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}
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}
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vm, err = provider.LoadVMByName(vmName)
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if err != nil {
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return fmt.Errorf("vm %s not found: %w", vmName, err)
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}
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if !validVM && sshOpts.Username == "" {
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sshOpts.Username, err = remoteConnectionUsername()
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if err != nil {
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return err
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}
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}
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err = vm.SSH(vmName, sshOpts)
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return utils.HandleOSExecError(err)
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}
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func remoteConnectionUsername() (string, error) {
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cfg, err := config.ReadCustomConfig()
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if err != nil {
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return "", err
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}
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dest, _, _, err := cfg.ActiveDestination()
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if err != nil {
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return "", err
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}
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uri, err := url.Parse(dest)
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if err != nil {
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return "", err
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}
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username := uri.User.String()
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return username, nil
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}
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