Add LXD support

scan/base.go

@@ -90,6 +90,12 @@ func (l base) allContainers() (containers []config.Container, err error) {
 			return containers, err
 		}
 		return l.parseDockerPs(stdout)
+	case "lxd":
+		stdout, err := l.lxdPs("-c n")
+		if err != nil {
+			return containers, err
+		}
+		return l.parseLxdPs(stdout)
 	default:
 		return containers, fmt.Errorf(
 			"Not supported yet: %s", l.ServerInfo.Container.Type)
@@ -104,6 +110,12 @@ func (l *base) runningContainers() (containers []config.Container, err error) {
 			return containers, err
 		}
 		return l.parseDockerPs(stdout)
+	case "lxd":
+		stdout, err := l.lxdPs("volatile.last_state.power=RUNNING -c n")
+		if err != nil {
+			return containers, err
+		}
+		return l.parseLxdPs(stdout)
 	default:
 		return containers, fmt.Errorf(
 			"Not supported yet: %s", l.ServerInfo.Container.Type)
@@ -118,6 +130,12 @@ func (l *base) exitedContainers() (containers []config.Container, err error) {
 			return containers, err
 		}
 		return l.parseDockerPs(stdout)
+	case "lxd":
+		stdout, err := l.lxdPs("volatile.last_state.power=STOPPED -c n")
+		if err != nil {
+			return containers, err
+		}
+		return l.parseLxdPs(stdout)
 	default:
 		return containers, fmt.Errorf(
 			"Not supported yet: %s", l.ServerInfo.Container.Type)
@@ -133,6 +151,15 @@ func (l *base) dockerPs(option string) (string, error) {
 	return r.Stdout, nil
 }
 
+func (l *base) lxdPs(option string) (string, error) {
+	cmd := fmt.Sprintf("lxc list %s", option)
+	r := l.ssh(cmd, noSudo)
+	if !r.isSuccess() {
+		return "", fmt.Errorf("failed to SSH: %s", r)
+	}
+	return r.Stdout, nil
+}
+
 func (l *base) parseDockerPs(stdout string) (containers []config.Container, err error) {
 	lines := strings.Split(stdout, "\n")
 	for _, line := range lines {
@@ -151,6 +178,27 @@ func (l *base) parseDockerPs(stdout string) (containers []config.Container, err
 	return
 }
 
+func (l *base) parseLxdPs(stdout string) (containers []config.Container, err error) {
+	lines := strings.Split(stdout, "\n")
+	for i, line := range lines[3:] {
+		if i % 2 == 1 {
+			continue
+		}
+		fields := strings.Fields(strings.Replace(line, "|", " ", -1))
+		if len(fields) == 0 {
+			break
+		}
+		if len(fields) != 1 {
+			return containers, fmt.Errorf("Unknown format: %s", line)
+		}
+		containers = append(containers, config.Container{
+			ContainerID: fields[0],
+			Name:        fields[0],
+		})
+	}
+	return
+}
+
 func (l *base) detectPlatform() error {
 	ok, instanceID, err := l.detectRunningOnAws()
 	if err != nil {

scan/base_test.go

@@ -57,6 +57,44 @@ f570ae647edc agitated_lovelace`,
 	}
 }
 
+func TestParseLxdPs(t *testing.T) {
+
+	var test = struct {
+		in       string
+		expected []config.Container
+	}{
+		`+-------+
+| NAME  |
++-------+
+| test1 |
++-------+
+| test2 |
++-------+` ,
+		[]config.Container{
+			{
+				ContainerID: "test1",
+				Name:        "test1",
+			},
+			{
+				ContainerID: "test2",
+				Name:        "test2",
+			},
+		},
+	}
+
+	r := newRedhat(config.ServerInfo{})
+	actual, err := r.parseLxdPs(test.in)
+	if err != nil {
+		t.Errorf("Error occurred. in: %s, err: %s", test.in, err)
+		return
+	}
+	for i, e := range test.expected {
+		if !reflect.DeepEqual(e, actual[i]) {
+			t.Errorf("expected %v, actual %v", e, actual[i])
+		}
+	}
+}
+
 func TestIsAwsInstanceID(t *testing.T) {
 	var tests = []struct {
 		in       string

scan/serverapi.go

@@ -330,6 +330,7 @@ func detectContainerOSesOnServer(containerHost osTypeInterface) (oses []osTypeIn
 			copied.SetContainer(config.Container{
 				ContainerID: containerInfo.ContainerID,
 				Name:        containerInfo.Name,
+				Type:        containerHostInfo.Container.Type,
 			})
 			os := detectOS(copied)
 			oses = append(oses, os)

scan/sshutil.go

@@ -307,6 +307,8 @@ func decolateCmd(c conf.ServerInfo, cmd string, sudo bool) string {
 		switch c.Container.Type {
 		case "", "docker":
 			cmd = fmt.Sprintf(`docker exec %s /bin/bash -c "%s"`, c.Container.ContainerID, cmd)
+		case "lxd":
+			cmd = fmt.Sprintf(`lxc exec %s -- /bin/bash -c "%s"`, c.Container.Name, cmd)
 		}
 	}
 	//  cmd = fmt.Sprintf("set -x; %s", cmd)