Remove containerd files
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby
parent
992fdbfd76
commit
e115b52ce2
74 changed files with 0 additions and 9757 deletions
140
hack/example/main.go
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140
hack/example/main.go
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@ -0,0 +1,140 @@
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package main
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import (
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"flag"
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"fmt"
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"io"
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"os"
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"strconv"
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"github.com/Sirupsen/logrus"
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"github.com/docker/containerkit"
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"github.com/docker/containerkit/osutils"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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func reloadContainer() error {
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dockerContainer := &testConfig{}
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container, err := containerkit.LoadContainer(dockerContainer)
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if err != nil {
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return err
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}
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// wait for it to exit and get the exit status
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logrus.Info("wait container")
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status, err := container.Wait()
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if err != nil {
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return err
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}
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// delete the container after it is done
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logrus.Info("delete container")
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if container.Delete(); err != nil {
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return err
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}
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logrus.Infof("exit status %d", status)
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return nil
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}
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func runContainer() error {
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// create a new runtime runtime that implements the ExecutionDriver interface
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dockerContainer := &testConfig{}
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// create a new container
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container, err := containerkit.NewContainer(dockerContainer)
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if err != nil {
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return err
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}
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// setup some stdio for our container
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container.Stdin = Stdin("")
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container.Stdout = Stdout("")
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container.Stderr = Stderr("")
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// go ahead and set the container in the create state and have it ready to start
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logrus.Info("create container")
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if err := container.Create(); err != nil {
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return err
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}
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// start the user defined process in the container
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logrus.Info("start container")
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if err := container.Start(); err != nil {
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return err
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}
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for i := 0; i < exec; i++ {
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process, err := container.NewProcess(&specs.Process{
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Args: []string{
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"sh", "-c",
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"echo " + fmt.Sprintf("sup from itteration %d", i),
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},
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Env: env,
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Terminal: false,
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Cwd: "/",
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NoNewPrivileges: true,
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Capabilities: caps,
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})
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process.Stdin = Stdin(strconv.Itoa(i))
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stdout := Stdout(strconv.Itoa(i))
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stderr := Stderr(strconv.Itoa(i))
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go io.Copy(os.Stdout, stdout)
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go io.Copy(os.Stdout, stderr)
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process.Stdout = stdout
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process.Stderr = stderr
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if err := process.Start(); err != nil {
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return err
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}
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procStatus, err := process.Wait()
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if err != nil {
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return err
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}
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logrus.Infof("process %d returned with %d", i, procStatus)
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}
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if load {
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return nil
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}
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// wait for it to exit and get the exit status
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logrus.Info("wait container")
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status, err := container.Wait()
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if err != nil {
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return err
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}
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// delete the container after it is done
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logrus.Info("delete container")
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if container.Delete(); err != nil {
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return err
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}
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logrus.Infof("exit status %d", status)
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return nil
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}
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var (
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exec int
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load bool
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reload bool
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)
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// "Hooks do optional work. Drivers do mandatory work"
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func main() {
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flag.IntVar(&exec, "exec", 0, "run n number of execs")
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flag.BoolVar(&load, "load", false, "reload the container")
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flag.BoolVar(&reload, "reload", false, "reload the container live")
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flag.Parse()
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if err := osutils.SetSubreaper(1); err != nil {
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logrus.Fatal(err)
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}
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if reload {
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if err := reloadContainer(); err != nil {
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logrus.Fatal(err)
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}
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return
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}
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if err := runContainer(); err != nil {
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logrus.Fatal(err)
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}
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}
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232
hack/example/utils.go
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232
hack/example/utils.go
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package main
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import (
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"os"
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"path/filepath"
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"runtime"
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"syscall"
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"time"
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"golang.org/x/sys/unix"
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"github.com/docker/containerd/shim"
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"github.com/docker/containerkit"
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specs "github.com/opencontainers/runtime-spec/specs-go"
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)
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var (
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RWM = "rwm"
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caps = []string{
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"CAP_AUDIT_WRITE",
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"CAP_KILL",
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"CAP_FOWNER",
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"CAP_CHOWN",
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"CAP_MKNOD",
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"CAP_FSETID",
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"CAP_DAC_OVERRIDE",
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"CAP_SETFCAP",
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"CAP_SETPCAP",
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"CAP_SETGID",
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"CAP_SETUID",
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"CAP_NET_BIND_SERVICE",
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}
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env = []string{
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"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
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}
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)
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type testConfig struct {
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}
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func (t *testConfig) ID() string {
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return "test"
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}
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func (t *testConfig) Root() string {
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return "/var/lib/containerkit"
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}
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func (t *testConfig) Runtime() (containerkit.Runtime, error) {
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return shim.New(shim.Opts{
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Root: "/run/cshim/test",
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Name: "containerd-shim",
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RuntimeName: "runc",
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RuntimeRoot: "/run/runc",
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Timeout: 5 * time.Second,
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})
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// TODO: support loading of runtime
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// create a new runtime runtime that implements the ExecutionDriver interface
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return shim.Load("/run/cshim/test")
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}
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func (t *testConfig) Spec() (*specs.Spec, error) {
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var (
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cgpath = filepath.Join("/containerkit", t.ID())
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m = &containerkit.Mount{
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Target: "/",
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Type: "bind",
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Source: "/containers/redis/rootfs",
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Options: []string{
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"rbind",
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"rw",
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},
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}
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)
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return &specs.Spec{
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Version: specs.Version,
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Platform: specs.Platform{
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OS: runtime.GOOS,
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Arch: runtime.GOARCH,
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},
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Root: specs.Root{
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Path: "rootfs",
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Readonly: false,
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},
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Process: specs.Process{
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Env: env,
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Args: []string{"sleep", "30"},
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Terminal: false,
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Cwd: "/",
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NoNewPrivileges: true,
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Capabilities: caps,
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},
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Hostname: "containerkit",
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Mounts: []specs.Mount{
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{
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Destination: m.Target,
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Type: m.Type,
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Source: m.Source,
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Options: m.Options,
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},
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{
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Destination: "/proc",
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Type: "proc",
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Source: "proc",
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},
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{
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Destination: "/dev",
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Type: "tmpfs",
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Source: "tmpfs",
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Options: []string{"nosuid", "strictatime", "mode=755", "size=65536k"},
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},
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{
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Destination: "/dev/pts",
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Type: "devpts",
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Source: "devpts",
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Options: []string{"nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620", "gid=5"},
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},
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{
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Destination: "/dev/shm",
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Type: "tmpfs",
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Source: "shm",
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Options: []string{"nosuid", "noexec", "nodev", "mode=1777", "size=65536k"},
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},
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{
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Destination: "/dev/mqueue",
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Type: "mqueue",
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Source: "mqueue",
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Options: []string{"nosuid", "noexec", "nodev"},
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},
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{
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Destination: "/sys",
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Type: "sysfs",
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Source: "sysfs",
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Options: []string{"nosuid", "noexec", "nodev"},
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},
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{
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Destination: "/run",
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Type: "tmpfs",
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Source: "tmpfs",
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Options: []string{"nosuid", "strictatime", "mode=755", "size=65536k"},
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},
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{
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Destination: "/etc/resolv.conf",
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Type: "bind",
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Source: "/etc/resolv.conf",
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Options: []string{"rbind", "ro"},
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},
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{
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Destination: "/etc/hosts",
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Type: "bind",
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Source: "/etc/hosts",
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Options: []string{"rbind", "ro"},
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},
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{
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Destination: "/etc/localtime",
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Type: "bind",
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Source: "/etc/localtime",
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Options: []string{"rbind", "ro"},
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},
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},
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Linux: &specs.Linux{
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CgroupsPath: &cgpath,
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Resources: &specs.LinuxResources{
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Devices: []specs.LinuxDeviceCgroup{
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{
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Allow: false,
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Access: &RWM,
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},
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},
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},
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Namespaces: []specs.LinuxNamespace{
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{
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Type: "pid",
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},
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{
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Type: "ipc",
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},
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{
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Type: "uts",
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},
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{
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Type: "mount",
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},
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},
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},
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}, nil
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}
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func Stdin(n string) *os.File {
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abs, err := filepath.Abs("stdin" + n)
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if err != nil {
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panic(err)
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}
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if err := unix.Mkfifo(abs, 0755); err != nil && !os.IsExist(err) {
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panic(err)
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}
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f, err := os.OpenFile(abs, syscall.O_RDWR, 0)
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if err != nil {
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panic(err)
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}
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return f
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}
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func Stdout(n string) *os.File {
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abs, err := filepath.Abs("stdout" + n)
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if err != nil {
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panic(err)
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}
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if err := unix.Mkfifo(abs, 0755); err != nil && !os.IsExist(err) {
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panic(err)
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}
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f, err := os.OpenFile(abs, syscall.O_RDWR, 0)
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if err != nil {
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panic(err)
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}
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return f
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}
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func Stderr(n string) *os.File {
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abs, err := filepath.Abs("stderr" + n)
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if err != nil {
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panic(err)
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}
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if err := unix.Mkfifo(abs, 0755); err != nil && !os.IsExist(err) {
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panic(err)
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}
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f, err := os.OpenFile(abs, syscall.O_RDWR, 0)
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if err != nil {
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panic(err)
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}
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return f
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}
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