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Move runtime implementation types to pkg

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Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2015-12-01 11:56:08 -08:00
parent 779cb69e6d
commit c24abdde1b
8 changed files with 60 additions and 51 deletions
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9
api/v1/server.go
View file

@ -8,6 +8,7 @@ import (
"github.com/Sirupsen/logrus"
"github.com/docker/containerd"
"github.com/docker/containerd/runtime"
"github.com/gorilla/mux"
"github.com/opencontainers/specs"
)
@ -51,8 +52,8 @@ func (s *server) updateContainer(w http.ResponseWriter, r *http.Request) {
}
e := containerd.NewEvent(containerd.UpdateContainerEventType)
e.ID = id
e.State = &containerd.State{
Status: containerd.Status(string(state.Status)),
e.State = &runtime.State{
Status: runtime.Status(string(state.Status)),
}
s.supervisor.SendEvent(e)
if err := <-e.Err; err != nil {
@ -214,7 +215,7 @@ func writeContainers(w http.ResponseWriter, e *containerd.Event) error {
return json.NewEncoder(w).Encode(&state)
}
func createProcess(in containerd.Process) *Process {
func createProcess(in runtime.Process) *Process {
pid, err := in.Pid()
if err != nil {
logrus.WithField("error", err).Error("get process pid")
@ -248,7 +249,7 @@ func (s *server) createContainer(w http.ResponseWriter, r *http.Request) {
e := containerd.NewEvent(containerd.StartContainerEventType)
e.ID = id
e.BundlePath = c.BundlePath
e.Stdio = &containerd.Stdio{
e.Stdio = &runtime.Stdio{
Stderr: c.Stderr,
Stdout: c.Stdout,
}

7
delete.go
View file

@ -1,6 +1,9 @@
package containerd
import "github.com/Sirupsen/logrus"
import (
"github.com/Sirupsen/logrus"
"github.com/docker/containerd/runtime"
)
type DeleteEvent struct {
s *Supervisor
@ -16,7 +19,7 @@ func (h *DeleteEvent) Handle(e *Event) error {
return nil
}
func (h *DeleteEvent) deleteContainer(container Container) error {
func (h *DeleteEvent) deleteContainer(container runtime.Container) error {
delete(h.s.containers, container.ID())
return container.Delete()
}

30
event.go
View file

@ -4,6 +4,7 @@ import (
"os"
"time"
"github.com/docker/containerd/runtime"
"github.com/opencontainers/specs"
)
@ -27,24 +28,19 @@ func NewEvent(t EventType) *Event {
}
}
type Stdio struct {
Stderr string `json:"stderr,omitempty"`
Stdout string `json:"stdout,omitempty"`
}
type Event struct {
Type EventType `json:"type"`
Timestamp time.Time `json:"timestamp"`
ID string `json:"id,omitempty"`
BundlePath string `json:"bundlePath,omitempty"`
Stdio *Stdio `json:"stdio,omitempty"`
Pid int `json:"pid,omitempty"`
Status int `json:"status,omitempty"`
Signal os.Signal `json:"signal,omitempty"`
Process *specs.Process `json:"process,omitempty"`
State *State `json:"state,omitempty"`
Containers []Container `json:"-"`
Err chan error `json:"-"`
Type EventType `json:"type"`
Timestamp time.Time `json:"timestamp"`
ID string `json:"id,omitempty"`
BundlePath string `json:"bundlePath,omitempty"`
Stdio *runtime.Stdio `json:"stdio,omitempty"`
Pid int `json:"pid,omitempty"`
Status int `json:"status,omitempty"`
Signal os.Signal `json:"signal,omitempty"`
Process *specs.Process `json:"process,omitempty"`
State *runtime.State `json:"state,omitempty"`
Containers []runtime.Container `json:"-"`
Err chan error `json:"-"`
}
type Handler interface {

7
container.go → runtime/container.go
View file

@ -1,4 +1,4 @@
package containerd
package runtime
import (
"os"
@ -22,6 +22,11 @@ type State struct {
Status Status `json:"status,omitempty"`
}
type Stdio struct {
Stderr string `json:"stderr,omitempty"`
Stdout string `json:"stdout,omitempty"`
}
type Container interface {
// ID returns the container ID
ID() string

2
runtime.go → runtime/runtime.go
View file

@ -1,4 +1,4 @@
package containerd
package runtime
import "github.com/opencontainers/specs"

27
runtime_linux.go
View file

@ -8,11 +8,12 @@ import (
"io"
"os"
"path/filepath"
"runtime"
goruntime "runtime"
"strconv"
"strings"
"syscall"
"github.com/docker/containerd/runtime"
"github.com/opencontainers/runc/libcontainer"
"github.com/opencontainers/runc/libcontainer/configs"
_ "github.com/opencontainers/runc/libcontainer/nsenter"
@ -149,8 +150,8 @@ var mountPropagationMapping = map[string]int{
func init() {
if len(os.Args) > 1 && os.Args[1] == "init" {
runtime.GOMAXPROCS(1)
runtime.LockOSThread()
goruntime.GOMAXPROCS(1)
goruntime.LockOSThread()
factory, _ := libcontainer.New("")
if err := factory.StartInitialization(); err != nil {
fmt.Fprint(os.Stderr, err)
@ -199,8 +200,8 @@ func (c *libcontainerContainer) Pause() error {
return c.c.Pause()
}
func (c *libcontainerContainer) State() State {
s := State{}
func (c *libcontainerContainer) State() runtime.State {
s := runtime.State{}
// TODO: what to do with error
state, err := c.c.Status()
if err != nil {
@ -208,9 +209,9 @@ func (c *libcontainerContainer) State() State {
}
switch state {
case libcontainer.Paused, libcontainer.Pausing:
s.Status = Paused
s.Status = runtime.Paused
default:
s.Status = Running
s.Status = runtime.Running
}
return s
}
@ -241,8 +242,8 @@ func (c *libcontainerContainer) Delete() error {
return c.c.Destroy()
}
func (c *libcontainerContainer) Processes() ([]Process, error) {
procs := []Process{
func (c *libcontainerContainer) Processes() ([]runtime.Process, error) {
procs := []runtime.Process{
c.initProcess,
}
for _, p := range c.additionalProcesses {
@ -259,7 +260,7 @@ func (c *libcontainerContainer) RemoveProcess(pid int) error {
return nil
}
func NewRuntime(stateDir string) (Runtime, error) {
func NewRuntime(stateDir string) (runtime.Runtime, error) {
f, err := libcontainer.New(stateDir, libcontainer.Cgroupfs, func(l *libcontainer.LinuxFactory) error {
//l.CriuPath = context.GlobalString("criu")
return nil
@ -276,7 +277,7 @@ type libcontainerRuntime struct {
factory libcontainer.Factory
}
func (r *libcontainerRuntime) Create(id, bundlePath string, stdio *Stdio) (Container, error) {
func (r *libcontainerRuntime) Create(id, bundlePath string, stdio *runtime.Stdio) (runtime.Container, error) {
spec, rspec, err := r.loadSpec(
filepath.Join(bundlePath, "config.json"),
filepath.Join(bundlePath, "runtime.json"),
@ -308,7 +309,7 @@ func (r *libcontainerRuntime) Create(id, bundlePath string, stdio *Stdio) (Conta
return c, nil
}
func (r *libcontainerRuntime) StartProcess(ci Container, p specs.Process, stdio *Stdio) (Process, error) {
func (r *libcontainerRuntime) StartProcess(ci runtime.Container, p specs.Process, stdio *runtime.Stdio) (runtime.Process, error) {
c, ok := ci.(*libcontainerContainer)
if !ok {
return nil, errInvalidContainerType
@ -334,7 +335,7 @@ func (r *libcontainerRuntime) StartProcess(ci Container, p specs.Process, stdio
// newProcess returns a new libcontainer Process with the arguments from the
// spec and stdio from the current process.
func (r *libcontainerRuntime) newProcess(p specs.Process, stdio *Stdio) (*libcontainer.Process, error) {
func (r *libcontainerRuntime) newProcess(p specs.Process, stdio *runtime.Stdio) (*libcontainer.Process, error) {
var (
stderr, stdout io.Writer
)

23
supervisor.go
View file

@ -3,11 +3,12 @@ package containerd
import (
"os"
"path/filepath"
"runtime"
goruntime "runtime"
"sync"
"time"
"github.com/Sirupsen/logrus"
"github.com/docker/containerd/runtime"
"github.com/opencontainers/runc/libcontainer"
)
@ -17,7 +18,7 @@ func NewSupervisor(stateDir string, concurrency int) (*Supervisor, error) {
return nil, err
}
// register counters
runtime, err := NewRuntime(stateDir)
r, err := NewRuntime(stateDir)
if err != nil {
return nil, err
}
@ -27,9 +28,9 @@ func NewSupervisor(stateDir string, concurrency int) (*Supervisor, error) {
}
s := &Supervisor{
stateDir: stateDir,
containers: make(map[string]Container),
processes: make(map[int]Container),
runtime: runtime,
containers: make(map[string]runtime.Container),
processes: make(map[int]runtime.Container),
runtime: r,
tasks: make(chan *startTask, concurrency*100),
journal: j,
}
@ -54,10 +55,10 @@ func NewSupervisor(stateDir string, concurrency int) (*Supervisor, error) {
type Supervisor struct {
// stateDir is the directory on the system to store container runtime state information.
stateDir string
containers map[string]Container
processes map[int]Container
containers map[string]runtime.Container
processes map[int]runtime.Container
handlers map[EventType]Handler
runtime Runtime
runtime runtime.Runtime
journal *journal
events chan *Event
tasks chan *startTask
@ -86,7 +87,7 @@ func (s *Supervisor) Start(events chan *Event) error {
go func() {
// allocate an entire thread to this goroutine for the main event loop
// so that nothing else is scheduled over the top of it.
runtime.LockOSThread()
goruntime.LockOSThread()
for e := range events {
s.journal.write(e)
h, ok := s.handlers[e.Type]
@ -107,7 +108,7 @@ func (s *Supervisor) Start(events chan *Event) error {
return nil
}
func (s *Supervisor) getContainerForPid(pid int) (Container, error) {
func (s *Supervisor) getContainerForPid(pid int) (runtime.Container, error) {
for _, container := range s.containers {
cpid, err := container.Pid()
if err != nil {
@ -131,7 +132,7 @@ func (s *Supervisor) SendEvent(evt *Event) {
}
type startTask struct {
container Container
container runtime.Container
err chan error
}

6
update.go
View file

@ -1,5 +1,7 @@
package containerd
import "github.com/docker/containerd/runtime"
type UpdateEvent struct {
s *Supervisor
}
@ -11,11 +13,11 @@ func (h *UpdateEvent) Handle(e *Event) error {
}
if e.State.Status != "" {
switch e.State.Status {
case Running:
case runtime.Running:
if err := container.Resume(); err != nil {
return ErrUnknownContainerStatus
}
case Paused:
case runtime.Paused:
if err := container.Pause(); err != nil {
return ErrUnknownContainerStatus
}