build tags for no 9pfs support

Signed-off-by: Harshal Patil <harshal.patil@in.ibm.com>

Makefile.am

@@ -1,4 +1,10 @@
 export GO15VENDOREXPERIMENT=1
+if WITH_9P
+9P_BUILD_TAG=with_9p
+else
+9P_BUILD_TAG=
+endif
+
 if WITH_XEN
 XEN_BUILD_TAG=with_xen
 else
@@ -13,7 +19,7 @@ endif
 
 COMMIT=`git describe --dirty --always --tags 2> /dev/null || true`
 GOLDFLAGS="-X main.gitCommit=${COMMIT} -X main.version=${VERSION}"
-HYPER_BULD_TAGS=$(XEN_BUILD_TAG) $(LIBVIRT_BUILD_TAG)
+HYPER_BULD_TAGS=$(XEN_BUILD_TAG) $(LIBVIRT_BUILD_TAG) $(9P_BUILD_TAG)
 
 all-local: build-runv
 clean-local:

cli/sandbox.go

@@ -69,11 +69,12 @@ func setupFactory(context *cli.Context, spec *specs.Spec) (factory.Factory, erro
 		return singlefactory.New(templatefactory.NewFromExisted(tconfig)), nil
 	}
 	bootConfig := hypervisor.BootConfig{
-		Kernel:      kernel,
-		Initrd:      initrd,
-		Bios:        bios,
-		Cbfs:        cbfs,
-		EnableVsock: vsock,
+		Kernel:          kernel,
+		Initrd:          initrd,
+		Bios:            bios,
+		Cbfs:            cbfs,
+		EnableVsock:     vsock,
+		ContainerRootFs: spec.Root.Path,
 	}
 	return singlefactory.Dummy(bootConfig), nil
 }
@@ -153,6 +154,7 @@ func destroySandbox(vm *hypervisor.Vm, lockFile *os.File) {
 		glog.Errorf("StopPod timeout")
 	}
 	vm.Kill()
+	os.RemoveAll("/tmp/" + vm.Id)
 
 	// cli refactor todo: kill the proxy if vm.Shutdown() failed.
 

configure.ac

@@ -31,6 +31,12 @@ esac
 
 # Checks for libraries.
 
+AC_ARG_WITH([9p],
+            [AS_HELP_STRING([--without-9p],
+                            [run runv with 9p])],
+            [with_9p=no],[with_9p=yes])
+
+
 LIBVIRT_REQUIRED="1.2.2"
 
 AC_ARG_WITH([libvirt],
@@ -76,6 +82,8 @@ fi
 
 AM_CONDITIONAL([WITH_XEN], [test "x$with_xen" == "xyes"])
 
+AM_CONDITIONAL([WITH_9P], [test "x$with_9p" == "xyes"])
+
 AC_CONFIG_FILES([Makefile])
 
 AC_OUTPUT
@@ -90,4 +98,6 @@ AC_MSG_RESULT([
 	with xen:   ${with_xen}
 
 	with libvirt: ${with_libvirt}
+
+	with 9p: ${with_9p}
 ])

hyperstart/api/json/spec.go

@@ -108,7 +108,7 @@ type Pod struct {
 	DnsOptions            []string              `json:"dnsOptions,omitempty"`
 	DnsSearch             []string              `json:"dnsSearch,omitempty"`
 	DeprecatedRoutes      []Route               `json:"routes,omitempty"`
-	ShareDir              string                `json:"shareDir"`
+	ShareDir              string                `json:"shareDir,omitempty"`
 	PortmappingWhiteLists *PortmappingWhiteList `json:"portmappingWhiteLists,omitempty"`
 }
 

hyperstart/proxy/proxy.go

@@ -10,6 +10,7 @@ import (
 	hyperstartgrpc "github.com/hyperhq/runv/hyperstart/api/grpc"
 	hyperstartjson "github.com/hyperhq/runv/hyperstart/api/json"
 	"github.com/hyperhq/runv/hyperstart/libhyperstart"
+	"github.com/hyperhq/runv/hypervisor"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/health"
@@ -108,10 +109,16 @@ func (proxy *jsonProxy) TtyWinResize(ctx context.Context, req *hyperstartgrpc.Tt
 }
 
 func (proxy *jsonProxy) StartSandbox(ctx context.Context, req *hyperstartgrpc.StartSandboxRequest) (*google_protobuf.Empty, error) {
+	var sharedDir string
+	if hypervisor.Is9pfsSupported() {
+		sharedDir = "share_dir"
+	} else {
+		sharedDir = ""
+	}
 	pod := &hyperstartjson.Pod{
 		Hostname: req.Hostname,
 		Dns:      req.Dns,
-		ShareDir: "share_dir",
+		ShareDir: sharedDir,
 	}
 	err := proxy.json.StartSandbox(pod)
 	return pbEmpty(err), err

hypervisor/driver.go

@@ -22,6 +22,7 @@ type BootConfig struct {
 	Initrd           string
 	Bios             string
 	Cbfs             string
+	ContainerRootFs  string
 
 	// For network QoS (kilobytes/s)
 	InboundAverage  string

hypervisor/qemu/qemu_amd64.go

@@ -56,6 +56,17 @@ func (qc *QemuContext) arguments(ctx *hypervisor.VmContext) []string {
 			"-kernel", boot.Kernel, "-initrd", boot.Initrd, "-append", cmdline)
 	}
 
+	if !hypervisor.Is9pfsSupported() {
+		params = append(params, "-device", "virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x6")
+		params = append(params, "-drive", "file=/tmp/"+ctx.Id+"/rootfs.img,format=qcow2,if=none,id=drive-scsi0-1-0-0")
+		params = append(params, "-device", "scsi-hd,bus=scsi0.0,channel=0,scsi-id=1,lun=0,drive=drive-scsi0-1-0-0,id=scsi0-1-0-0")
+		params = append(params, "-device", "virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x2", "-device", "virtio-scsi-pci,id=scsi1,bus=pci.0,addr=0x3")
+	} else {
+		params = append(params, "-device", "virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x2", "-device", "virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3")
+		params = append(params, "-fsdev", fmt.Sprintf("local,id=virtio9p,path=%s,security_model=none", ctx.ShareDir))
+		params = append(params, "-device", fmt.Sprintf("virtio-9p-pci,fsdev=virtio9p,mount_tag=%s", hypervisor.ShareDirTag))
+	}
+
 	params = append(params,
 		"-realtime", "mlock=off", "-no-user-config", "-nodefaults", "-no-hpet",
 		"-rtc", "base=utc,clock=vm,driftfix=slew", "-no-reboot", "-display", "none", "-boot", "strict=on",
@@ -82,12 +93,9 @@ func (qc *QemuContext) arguments(ctx *hypervisor.VmContext) []string {
 	}
 
 	return append(params, "-qmp", fmt.Sprintf("unix:%s,server,nowait", qc.qmpSockName), "-serial", fmt.Sprintf("unix:%s,server,nowait", ctx.ConsoleSockName),
-		"-device", "virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x2", "-device", "virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3",
 		"-chardev", fmt.Sprintf("socket,id=charch0,path=%s,server,nowait", ctx.HyperSockName),
 		"-device", "virtserialport,bus=virtio-serial0.0,nr=1,chardev=charch0,id=channel0,name=sh.hyper.channel.0",
 		"-chardev", fmt.Sprintf("socket,id=charch1,path=%s,server,nowait", ctx.TtySockName),
 		"-device", "virtserialport,bus=virtio-serial0.0,nr=2,chardev=charch1,id=channel1,name=sh.hyper.channel.1",
-		"-fsdev", fmt.Sprintf("local,id=virtio9p,path=%s,security_model=none", ctx.ShareDir),
-		"-device", fmt.Sprintf("virtio-9p-pci,fsdev=virtio9p,mount_tag=%s", hypervisor.ShareDirTag),
 	)
 }

hypervisor/vm.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"strings"
 	"syscall"
@@ -771,6 +772,18 @@ func GetVm(vmId string, b *BootConfig, waitStarted bool) (*Vm, error) {
 		}
 	}
 
+	if !Is9pfsSupported() {
+		_, err := exec.LookPath("virt-make-fs")
+		if err != nil {
+			return nil, err
+		} else {
+			err = createRootFSDisk(id, b.ContainerRootFs)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
 	vm := newVm(id, b.CPU, b.Memory)
 	if err := vm.launch(b); err != nil {
 		return nil, err
@@ -788,3 +801,30 @@ func GetVm(vmId string, b *BootConfig, waitStarted bool) (*Vm, error) {
 	vm.Log(TRACE, "GetVm succeeded")
 	return vm, nil
 }
+
+func createRootFSDisk(containerID string, rootfsPath string) error {
+
+	//Container RootFS spec.Root.Path
+	//Create RootFS raw image at runqQemuRoot + "/vm_image" + vmdata.ContainerID
+	cmd := exec.Command("/bin/mkdir", "-p", "/tmp/"+containerID)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("runq error: mkdir failed: %v", err)
+	}
+	//Create rootfs.img
+	cmd = exec.Command("/usr/bin/virt-make-fs", "--label=rootfs", "-F", "qcow2", "-s", "+512M", "-t", "ext4", rootfsPath,
+		"/tmp/"+containerID+"/rootfs.img")
+	var out bytes.Buffer
+	var stderr bytes.Buffer
+	cmd.Stdout = &out
+	cmd.Stderr = &stderr
+	err = cmd.Run()
+	if err != nil {
+		fmt.Printf("Stderr %s", cmd.Stderr)
+		fmt.Printf("Stdout %s", cmd.Stdout)
+		return fmt.Errorf("runq error: virt-make-fs failed: %v", err)
+	}
+
+	return nil
+
+}

hypervisor/with_9pfs.go

@@ -0,0 +1,7 @@
+// +build linux,amd64,with_9p
+
+package hypervisor
+
+func Is9pfsSupported() bool {
+	return true
+}

hypervisor/without_9pfs.go

@@ -0,0 +1,7 @@
+// +build linux,amd64,!with_9p
+
+package hypervisor
+
+func Is9pfsSupported() bool {
+	return false
+}