Refactor machine inspect

I was asked to refactor machine inspect output to represent more common
and basic information.  machine inspect now has information that would
be appropriate for different machines.

[NO NEW TESTS NEEDED]

Signed-off-by: Brent Baude <bbaude@redhat.com>

3 files changed, 65 insertions, 164 deletions

diff --git a/pkg/machine/qemu/config.go b/pkg/machine/qemu/config.go
index 9473eef6f..56c95e3b3 100644
--- a/pkg/machine/qemu/config.go
+++ b/pkg/machine/qemu/config.go
@@ -4,13 +4,9 @@
 package qemu
 
 import (
-	"errors"
-	"io/ioutil"
-	"os"
-	"path/filepath"
 	"time"
 
-	"github.com/sirupsen/logrus"
+	"github.com/containers/podman/v4/pkg/machine"
 )
 
 const (
@@ -23,7 +19,7 @@ const (
 	Stable string = "stable"
 
 	// Max length of fully qualified socket path
-	maxSocketPathLength int = 103
+
 )
 
 type Provider struct{}
@@ -36,7 +32,7 @@ type MachineVMV1 struct {
 	// The command line representation of the qemu command
 	CmdLine []string
 	// Mounts is the list of remote filesystems to mount
-	Mounts []Mount
+	Mounts []machine.Mount
 	// IdentityPath is the fq path to the ssh priv key
 	IdentityPath string
 	// IgnitionFilePath is the fq path to the .ign file
@@ -65,27 +61,27 @@ type MachineVMV1 struct {
 
 type MachineVM struct {
 	// ConfigPath is the path to the configuration file
-	ConfigPath MachineFile
+	ConfigPath machine.VMFile
 	// The command line representation of the qemu command
 	CmdLine []string
 	// HostUser contains info about host user
-	HostUser
+	machine.HostUser
 	// ImageConfig describes the bootable image
-	ImageConfig
+	machine.ImageConfig
 	// Mounts is the list of remote filesystems to mount
-	Mounts []Mount
+	Mounts []machine.Mount
 	// Name of VM
 	Name string
 	// PidFilePath is the where the PID file lives
-	PidFilePath MachineFile
+	PidFilePath machine.VMFile
 	// QMPMonitor is the qemu monitor object for sending commands
 	QMPMonitor Monitor
 	// ReadySocket tells host when vm is booted
-	ReadySocket MachineFile
+	ReadySocket machine.VMFile
 	// ResourceConfig is physical attrs of the VM
-	ResourceConfig
+	machine.ResourceConfig
 	// SSHConfig for accessing the remote vm
-	SSHConfig
+	machine.SSHConfig
 	// Starting tells us whether the machine is running or if we have just dialed it to start it
 	Starting bool
 	// Created contains the original created time instead of querying the file mod time
@@ -94,59 +90,6 @@ type MachineVM struct {
 	LastUp time.Time
 }
 
-// ImageConfig describes the bootable image for the VM
-type ImageConfig struct {
-	IgnitionFilePath MachineFile
-	// ImageStream is the update stream for the image
-	ImageStream string
-	// ImagePath is the fq path to
-	ImagePath MachineFile
-}
-
-// HostUser describes the host user
-type HostUser struct {
-	// Whether this machine should run in a rootful or rootless manner
-	Rootful bool
-	// UID is the numerical id of the user that called machine
-	UID int
-}
-
-// SSHConfig contains remote access information for SSH
-type SSHConfig struct {
-	// IdentityPath is the fq path to the ssh priv key
-	IdentityPath string
-	// SSH port for user networking
-	Port int
-	// RemoteUsername of the vm user
-	RemoteUsername string
-}
-
-// ResourceConfig describes physical attributes of the machine
-type ResourceConfig struct {
-	// CPUs to be assigned to the VM
-	CPUs uint64
-	// Memory in megabytes assigned to the vm
-	Memory uint64
-	// Disk size in gigabytes assigned to the vm
-	DiskSize uint64
-}
-
-type MachineFile struct {
-	// Path is the fully qualified path to a file
-	Path string
-	// Symlink is a shortened version of Path by using
-	// a symlink
-	Symlink *string
-}
-
-type Mount struct {
-	Type     string
-	Tag      string
-	Source   string
-	Target   string
-	ReadOnly bool
-}
-
 type Monitorv1 struct {
 	//	Address portion of the qmp monitor (/tmp/tmp.sock)
 	Address string
@@ -158,7 +101,7 @@ type Monitorv1 struct {
 
 type Monitor struct {
 	//	Address portion of the qmp monitor (/tmp/tmp.sock)
-	Address MachineFile
+	Address machine.VMFile
 	// Network portion of the qmp monitor (unix)
 	Network string
 	// Timeout in seconds for qmp monitor transactions
@@ -170,64 +113,3 @@ var (
 	// qmp monitor interactions.
 	defaultQMPTimeout = 2 * time.Second
 )
-
-// GetPath returns the working path for a machinefile.  it returns
-// the symlink unless one does not exist
-func (m *MachineFile) GetPath() string {
-	if m.Symlink == nil {
-		return m.Path
-	}
-	return *m.Symlink
-}
-
-// Delete removes the machinefile symlink (if it exists) and
-// the actual path
-func (m *MachineFile) Delete() error {
-	if m.Symlink != nil {
-		if err := os.Remove(*m.Symlink); err != nil && !errors.Is(err, os.ErrNotExist) {
-			logrus.Errorf("unable to remove symlink %q", *m.Symlink)
-		}
-	}
-	if err := os.Remove(m.Path); err != nil && !errors.Is(err, os.ErrNotExist) {
-		return err
-	}
-	return nil
-}
-
-// Read the contents of a given file and return in []bytes
-func (m *MachineFile) Read() ([]byte, error) {
-	return ioutil.ReadFile(m.GetPath())
-}
-
-// NewMachineFile is a constructor for MachineFile
-func NewMachineFile(path string, symlink *string) (*MachineFile, error) {
-	if len(path) < 1 {
-		return nil, errors.New("invalid machine file path")
-	}
-	if symlink != nil && len(*symlink) < 1 {
-		return nil, errors.New("invalid symlink path")
-	}
-	mf := MachineFile{Path: path}
-	if symlink != nil && len(path) > maxSocketPathLength {
-		if err := mf.makeSymlink(symlink); err != nil && !errors.Is(err, os.ErrExist) {
-			return nil, err
-		}
-	}
-	return &mf, nil
-}
-
-// makeSymlink for macOS creates a symlink in $HOME/.podman/
-// for a machinefile like a socket
-func (m *MachineFile) makeSymlink(symlink *string) error {
-	homedir, err := os.UserHomeDir()
-	if err != nil {
-		return err
-	}
-	sl := filepath.Join(homedir, ".podman", *symlink)
-	// make the symlink dir and throw away if it already exists
-	if err := os.MkdirAll(filepath.Dir(sl), 0700); err != nil && !errors.Is(err, os.ErrNotExist) {
-		return err
-	}
-	m.Symlink = &sl
-	return os.Symlink(m.Path, sl)
-}
diff --git a/pkg/machine/qemu/config_test.go b/pkg/machine/qemu/config_test.go
index 264de9ae8..0fbb5b3bf 100644
--- a/pkg/machine/qemu/config_test.go
+++ b/pkg/machine/qemu/config_test.go
@@ -6,6 +6,7 @@ import (
 	"reflect"
 	"testing"
 
+	"github.com/containers/podman/v4/pkg/machine"
 	"github.com/containers/podman/v4/test/utils"
 )
 
@@ -37,7 +38,7 @@ func TestMachineFile_GetPath(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			m := &MachineFile{
+			m := &machine.VMFile{
 				Path:    tt.fields.Path,    //nolint: scopelint
 				Symlink: tt.fields.Symlink, //nolint: scopelint
 			}
@@ -73,7 +74,7 @@ func TestNewMachineFile(t *testing.T) {
 	sym := "my.sock"
 	longSym := filepath.Join(homedir, ".podman", sym)
 
-	m := MachineFile{
+	m := machine.VMFile{
 		Path:    p,
 		Symlink: nil,
 	}
@@ -84,7 +85,7 @@ func TestNewMachineFile(t *testing.T) {
 	tests := []struct {
 		name    string
 		args    args
-		want    *MachineFile
+		want    *machine.VMFile
 		wantErr bool
 	}{
 		{
@@ -96,7 +97,7 @@ func TestNewMachineFile(t *testing.T) {
 		{
 			name:    "Good with short symlink",
 			args:    args{p, &sym},
-			want:    &MachineFile{p, nil},
+			want:    &machine.VMFile{Path: p},
 			wantErr: false,
 		},
 		{
@@ -114,14 +115,14 @@ func TestNewMachineFile(t *testing.T) {
 		{
 			name:    "Good with long symlink",
 			args:    args{longp, &sym},
-			want:    &MachineFile{longp, &longSym},
+			want:    &machine.VMFile{Path: longp, Symlink: &longSym},
 			wantErr: false,
 		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got, err := NewMachineFile(tt.args.path, tt.args.symlink) //nolint: scopelint
-			if (err != nil) != tt.wantErr {                           //nolint: scopelint
+			got, err := machine.NewMachineFile(tt.args.path, tt.args.symlink) //nolint: scopelint
+			if (err != nil) != tt.wantErr {                                   //nolint: scopelint
 				t.Errorf("NewMachineFile() error = %v, wantErr %v", err, tt.wantErr) //nolint: scopelint
 				return
 			}
diff --git a/pkg/machine/qemu/machine.go b/pkg/machine/qemu/machine.go
index ccfad90f7..44f28f0c7 100644
--- a/pkg/machine/qemu/machine.go
+++ b/pkg/machine/qemu/machine.go
@@ -71,12 +71,12 @@ func (p *Provider) NewMachine(opts machine.InitOptions) (machine.VM, error) {
 	if len(opts.Name) > 0 {
 		vm.Name = opts.Name
 	}
-	ignitionFile, err := NewMachineFile(filepath.Join(vmConfigDir, vm.Name+".ign"), nil)
+	ignitionFile, err := machine.NewMachineFile(filepath.Join(vmConfigDir, vm.Name+".ign"), nil)
 	if err != nil {
 		return nil, err
 	}
-	vm.IgnitionFilePath = *ignitionFile
-	imagePath, err := NewMachineFile(opts.ImagePath, nil)
+	vm.IgnitionFile = *ignitionFile
+	imagePath, err := machine.NewMachineFile(opts.ImagePath, nil)
 	if err != nil {
 		return nil, err
 	}
@@ -105,14 +105,13 @@ func (p *Provider) NewMachine(opts machine.InitOptions) (machine.VM, error) {
 	if err != nil {
 		return nil, err
 	}
-
 	cmd := []string{execPath}
 	// Add memory
 	cmd = append(cmd, []string{"-m", strconv.Itoa(int(vm.Memory))}...)
 	// Add cpus
 	cmd = append(cmd, []string{"-smp", strconv.Itoa(int(vm.CPUs))}...)
 	// Add ignition file
-	cmd = append(cmd, []string{"-fw_cfg", "name=opt/com.coreos/config,file=" + vm.IgnitionFilePath.GetPath()}...)
+	cmd = append(cmd, []string{"-fw_cfg", "name=opt/com.coreos/config,file=" + vm.IgnitionFile.GetPath()}...)
 	// Add qmp socket
 	monitor, err := NewQMPMonitor("unix", vm.Name, defaultQMPTimeout)
 	if err != nil {
@@ -158,9 +157,9 @@ func migrateVM(configPath string, config []byte, vm *MachineVM) error {
 		return err
 	}
 
-	pidFilePath := MachineFile{Path: pidFile}
+	pidFilePath := machine.VMFile{Path: pidFile}
 	qmpMonitor := Monitor{
-		Address: MachineFile{Path: old.QMPMonitor.Address},
+		Address: machine.VMFile{Path: old.QMPMonitor.Address},
 		Network: old.QMPMonitor.Network,
 		Timeout: old.QMPMonitor.Timeout,
 	}
@@ -169,18 +168,18 @@ func migrateVM(configPath string, config []byte, vm *MachineVM) error {
 		return err
 	}
 	virtualSocketPath := filepath.Join(socketPath, "podman", vm.Name+"_ready.sock")
-	readySocket := MachineFile{Path: virtualSocketPath}
+	readySocket := machine.VMFile{Path: virtualSocketPath}
 
-	vm.HostUser = HostUser{}
-	vm.ImageConfig = ImageConfig{}
-	vm.ResourceConfig = ResourceConfig{}
-	vm.SSHConfig = SSHConfig{}
+	vm.HostUser = machine.HostUser{}
+	vm.ImageConfig = machine.ImageConfig{}
+	vm.ResourceConfig = machine.ResourceConfig{}
+	vm.SSHConfig = machine.SSHConfig{}
 
-	ignitionFilePath, err := NewMachineFile(old.IgnitionFilePath, nil)
+	ignitionFilePath, err := machine.NewMachineFile(old.IgnitionFilePath, nil)
 	if err != nil {
 		return err
 	}
-	imagePath, err := NewMachineFile(old.ImagePath, nil)
+	imagePath, err := machine.NewMachineFile(old.ImagePath, nil)
 	if err != nil {
 		return err
 	}
@@ -194,7 +193,7 @@ func migrateVM(configPath string, config []byte, vm *MachineVM) error {
 	vm.CmdLine = old.CmdLine
 	vm.DiskSize = old.DiskSize
 	vm.IdentityPath = old.IdentityPath
-	vm.IgnitionFilePath = *ignitionFilePath
+	vm.IgnitionFile = *ignitionFilePath
 	vm.ImagePath = *imagePath
 	vm.ImageStream = old.ImageStream
 	vm.Memory = old.Memory
@@ -229,7 +228,7 @@ func migrateVM(configPath string, config []byte, vm *MachineVM) error {
 // and returns a vm instance
 func (p *Provider) LoadVMByName(name string) (machine.VM, error) {
 	vm := &MachineVM{Name: name}
-	vm.HostUser = HostUser{UID: -1} // posix reserves -1, so use it to signify undefined
+	vm.HostUser = machine.HostUser{UID: -1} // posix reserves -1, so use it to signify undefined
 	if err := vm.update(); err != nil {
 		return nil, err
 	}
@@ -270,7 +269,7 @@ func (v *MachineVM) Init(opts machine.InitOptions) (bool, error) {
 		if err != nil {
 			return false, err
 		}
-		uncompressedFile, err := NewMachineFile(dd.Get().LocalUncompressedFile, nil)
+		uncompressedFile, err := machine.NewMachineFile(dd.Get().LocalUncompressedFile, nil)
 		if err != nil {
 			return false, err
 		}
@@ -286,7 +285,7 @@ func (v *MachineVM) Init(opts machine.InitOptions) (bool, error) {
 		if err != nil {
 			return false, err
 		}
-		imagePath, err := NewMachineFile(g.Get().LocalUncompressedFile, nil)
+		imagePath, err := machine.NewMachineFile(g.Get().LocalUncompressedFile, nil)
 		if err != nil {
 			return false, err
 		}
@@ -308,7 +307,7 @@ func (v *MachineVM) Init(opts machine.InitOptions) (bool, error) {
 		return false, err
 	}
 
-	mounts := []Mount{}
+	mounts := []machine.Mount{}
 	for i, volume := range opts.Volumes {
 		tag := fmt.Sprintf("vol%d", i)
 		paths := strings.SplitN(volume, ":", 3)
@@ -338,7 +337,7 @@ func (v *MachineVM) Init(opts machine.InitOptions) (bool, error) {
 				virtfsOptions += ",readonly"
 			}
 			v.CmdLine = append(v.CmdLine, []string{"-virtfs", virtfsOptions}...)
-			mounts = append(mounts, Mount{Type: MountType9p, Tag: tag, Source: source, Target: target, ReadOnly: readonly})
+			mounts = append(mounts, machine.Mount{Type: MountType9p, Tag: tag, Source: source, Target: target, ReadOnly: readonly})
 		}
 	}
 	v.Mounts = mounts
@@ -809,7 +808,7 @@ func NewQMPMonitor(network, name string, timeout time.Duration) (Monitor, error)
 	if timeout == 0 {
 		timeout = defaultQMPTimeout
 	}
-	address, err := NewMachineFile(filepath.Join(rtDir, "qmp_"+name+".sock"), nil)
+	address, err := machine.NewMachineFile(filepath.Join(rtDir, "qmp_"+name+".sock"), nil)
 	if err != nil {
 		return Monitor{}, err
 	}
@@ -1238,14 +1237,14 @@ func (v *MachineVM) userGlobalSocketLink() (string, error) {
 	return filepath.Join(filepath.Dir(path), "podman.sock"), err
 }
 
-func (v *MachineVM) forwardSocketPath() (*MachineFile, error) {
+func (v *MachineVM) forwardSocketPath() (*machine.VMFile, error) {
 	sockName := "podman.sock"
 	path, err := machine.GetDataDir(v.Name)
 	if err != nil {
 		logrus.Errorf("Resolving data dir: %s", err.Error())
 		return nil, err
 	}
-	return NewMachineFile(filepath.Join(path, sockName), &sockName)
+	return machine.NewMachineFile(filepath.Join(path, sockName), &sockName)
 }
 
 func (v *MachineVM) setConfigPath() error {
@@ -1254,7 +1253,7 @@ func (v *MachineVM) setConfigPath() error {
 		return err
 	}
 
-	configPath, err := NewMachineFile(filepath.Join(vmConfigDir, v.Name)+".json", nil)
+	configPath, err := machine.NewMachineFile(filepath.Join(vmConfigDir, v.Name)+".json", nil)
 	if err != nil {
 		return err
 	}
@@ -1268,7 +1267,7 @@ func (v *MachineVM) setReadySocket() error {
 	if err != nil {
 		return err
 	}
-	virtualSocketPath, err := NewMachineFile(filepath.Join(rtPath, "podman", readySocketName), &readySocketName)
+	virtualSocketPath, err := machine.NewMachineFile(filepath.Join(rtPath, "podman", readySocketName), &readySocketName)
 	if err != nil {
 		return err
 	}
@@ -1286,7 +1285,7 @@ func (v *MachineVM) setPIDSocket() error {
 	}
 	pidFileName := fmt.Sprintf("%s.pid", v.Name)
 	socketDir := filepath.Join(rtPath, "podman")
-	pidFilePath, err := NewMachineFile(filepath.Join(socketDir, pidFileName), &pidFileName)
+	pidFilePath, err := machine.NewMachineFile(filepath.Join(socketDir, pidFileName), &pidFileName)
 	if err != nil {
 		return err
 	}
@@ -1463,7 +1462,26 @@ func (v *MachineVM) getImageFile() string {
 
 // getIgnitionFile wrapper returns the path to the ignition file
 func (v *MachineVM) getIgnitionFile() string {
-	return v.IgnitionFilePath.GetPath()
+	return v.IgnitionFile.GetPath()
+}
+
+// Inspect returns verbose detail about the machine
+func (v *MachineVM) Inspect() (*machine.InspectInfo, error) {
+	state, err := v.State(false)
+	if err != nil {
+		return nil, err
+	}
+
+	return &machine.InspectInfo{
+		ConfigPath: v.ConfigPath,
+		Created:    v.Created,
+		Image:      v.ImageConfig,
+		LastUp:     v.LastUp,
+		Name:       v.Name,
+		Resources:  v.ResourceConfig,
+		SSHConfig:  v.SSHConfig,
+		State:      state,
+	}, nil
 }
 
 // resizeDisk increases the size of the machine's disk in GB.