799 lines
20 KiB
Go
799 lines
20 KiB
Go
// +build linux
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package main
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"syscall"
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"github.com/codegangsta/cli"
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"github.com/opencontainers/runc/libcontainer/cgroups"
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"github.com/opencontainers/runc/libcontainer/configs"
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"github.com/opencontainers/runc/libcontainer/seccomp"
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libcontainerUtils "github.com/opencontainers/runc/libcontainer/utils"
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"github.com/opencontainers/specs/specs-go"
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)
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var specCommand = cli.Command{
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Name: "spec",
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Usage: "create a new specification file",
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ArgsUsage: "",
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Description: `The spec command creates the new specification file named "` + specConfig + `" for the bundle." `,
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Flags: []cli.Flag{
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cli.StringFlag{
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Name: "bundle, b",
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Value: "",
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Usage: "path to the root of the bundle directory",
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},
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},
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Action: func(context *cli.Context) {
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spec := 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: true,
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},
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Process: specs.Process{
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Terminal: true,
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User: specs.User{},
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Args: []string{
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"sh",
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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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"TERM=xterm",
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},
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Cwd: "/",
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NoNewPrivileges: true,
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Capabilities: []string{
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"CAP_AUDIT_WRITE",
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"CAP_KILL",
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"CAP_NET_BIND_SERVICE",
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},
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Rlimits: []specs.Rlimit{
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{
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Type: "RLIMIT_NOFILE",
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Hard: uint64(1024),
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Soft: uint64(1024),
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},
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},
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},
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Hostname: "runc",
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Mounts: []specs.Mount{
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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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Options: nil,
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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", "ro"},
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},
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{
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Destination: "/sys/fs/cgroup",
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Type: "cgroup",
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Source: "cgroup",
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Options: []string{"nosuid", "noexec", "nodev", "relatime", "ro"},
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},
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},
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Linux: specs.Linux{
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Resources: &specs.Resources{
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Devices: []specs.DeviceCgroup{
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{
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Allow: false,
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Access: sPtr("rwm"),
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},
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},
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},
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Namespaces: []specs.Namespace{
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{
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Type: "pid",
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},
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{
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Type: "network",
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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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}
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checkNoFile := func(name string) error {
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_, err := os.Stat(name)
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if err == nil {
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return fmt.Errorf("File %s exists. Remove it first", name)
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}
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if !os.IsNotExist(err) {
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return err
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}
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return nil
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}
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bundle := context.String("bundle")
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if bundle != "" {
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if err := os.Chdir(bundle); err != nil {
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fatal(err)
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}
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}
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if err := checkNoFile(specConfig); err != nil {
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fatal(err)
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}
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data, err := json.MarshalIndent(&spec, "", "\t")
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if err != nil {
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fatal(err)
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}
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if err := ioutil.WriteFile(specConfig, data, 0666); err != nil {
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fatal(err)
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}
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},
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}
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func sPtr(s string) *string { return &s }
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func rPtr(r rune) *rune { return &r }
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func iPtr(i int64) *int64 { return &i }
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func u32Ptr(i int64) *uint32 { u := uint32(i); return &u }
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func fmPtr(i int64) *os.FileMode { fm := os.FileMode(i); return &fm }
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var namespaceMapping = map[specs.NamespaceType]configs.NamespaceType{
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specs.PIDNamespace: configs.NEWPID,
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specs.NetworkNamespace: configs.NEWNET,
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specs.MountNamespace: configs.NEWNS,
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specs.UserNamespace: configs.NEWUSER,
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specs.IPCNamespace: configs.NEWIPC,
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specs.UTSNamespace: configs.NEWUTS,
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}
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var mountPropagationMapping = map[string]int{
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"rprivate": syscall.MS_PRIVATE | syscall.MS_REC,
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"private": syscall.MS_PRIVATE,
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"rslave": syscall.MS_SLAVE | syscall.MS_REC,
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"slave": syscall.MS_SLAVE,
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"rshared": syscall.MS_SHARED | syscall.MS_REC,
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"shared": syscall.MS_SHARED,
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"": syscall.MS_PRIVATE | syscall.MS_REC,
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}
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// validateSpec validates the fields in the spec
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// TODO: Add validation for other fields where applicable
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func validateSpec(spec *specs.Spec) error {
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if spec.Process.Cwd == "" {
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return fmt.Errorf("Cwd property must not be empty")
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}
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if !filepath.IsAbs(spec.Process.Cwd) {
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return fmt.Errorf("Cwd must be an absolute path")
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}
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return nil
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}
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// loadSpec loads the specification from the provided path.
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// If the path is empty then the default path will be "config.json"
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func loadSpec(cPath string) (spec *specs.Spec, err error) {
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cf, err := os.Open(cPath)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, fmt.Errorf("JSON specification file %s not found", cPath)
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}
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return nil, err
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}
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defer cf.Close()
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if err = json.NewDecoder(cf).Decode(&spec); err != nil {
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return nil, err
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}
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return spec, validateSpec(spec)
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}
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func createLibcontainerConfig(cgroupName string, spec *specs.Spec) (*configs.Config, error) {
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// runc's cwd will always be the bundle path
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rcwd, err := os.Getwd()
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if err != nil {
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return nil, err
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}
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cwd, err := filepath.Abs(rcwd)
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if err != nil {
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return nil, err
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}
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rootfsPath := spec.Root.Path
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if !filepath.IsAbs(rootfsPath) {
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rootfsPath = filepath.Join(cwd, rootfsPath)
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}
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config := &configs.Config{
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Rootfs: rootfsPath,
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Readonlyfs: spec.Root.Readonly,
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Hostname: spec.Hostname,
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Labels: []string{
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"bundle=" + cwd,
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},
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}
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exists := false
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if config.RootPropagation, exists = mountPropagationMapping[spec.Linux.RootfsPropagation]; !exists {
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return nil, fmt.Errorf("rootfsPropagation=%v is not supported", spec.Linux.RootfsPropagation)
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}
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for _, ns := range spec.Linux.Namespaces {
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t, exists := namespaceMapping[ns.Type]
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if !exists {
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return nil, fmt.Errorf("namespace %q does not exist", ns)
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}
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config.Namespaces.Add(t, ns.Path)
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}
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if config.Namespaces.Contains(configs.NEWNET) {
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config.Networks = []*configs.Network{
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{
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Type: "loopback",
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},
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}
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}
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for _, m := range spec.Mounts {
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config.Mounts = append(config.Mounts, createLibcontainerMount(cwd, m))
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}
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if err := createDevices(spec, config); err != nil {
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return nil, err
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}
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if err := setupUserNamespace(spec, config); err != nil {
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return nil, err
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}
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c, err := createCgroupConfig(cgroupName, spec)
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if err != nil {
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return nil, err
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}
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config.Cgroups = c
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// set extra path masking for libcontainer for the various unsafe places in proc
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config.MaskPaths = maskedPaths
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config.ReadonlyPaths = readonlyPaths
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if spec.Linux.Seccomp != nil {
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seccomp, err := setupSeccomp(spec.Linux.Seccomp)
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if err != nil {
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return nil, err
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}
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config.Seccomp = seccomp
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}
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config.Sysctl = spec.Linux.Sysctl
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if oomScoreAdj := spec.Linux.Resources.OOMScoreAdj; oomScoreAdj != nil {
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config.OomScoreAdj = *oomScoreAdj
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}
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for _, g := range spec.Process.User.AdditionalGids {
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config.AdditionalGroups = append(config.AdditionalGroups, strconv.FormatUint(uint64(g), 10))
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}
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createHooks(spec, config)
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config.Version = specs.Version
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return config, nil
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}
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func createLibcontainerMount(cwd string, m specs.Mount) *configs.Mount {
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flags, pgflags, data := parseMountOptions(m.Options)
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source := m.Source
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if m.Type == "bind" {
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if !filepath.IsAbs(source) {
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source = filepath.Join(cwd, m.Source)
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}
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}
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return &configs.Mount{
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Device: m.Type,
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Source: source,
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Destination: m.Destination,
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Data: data,
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Flags: flags,
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PropagationFlags: pgflags,
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}
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}
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func createCgroupConfig(name string, spec *specs.Spec) (*configs.Cgroup, error) {
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var (
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err error
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myCgroupPath string
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)
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if spec.Linux.CgroupsPath != nil {
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myCgroupPath = libcontainerUtils.CleanPath(*spec.Linux.CgroupsPath)
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} else {
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myCgroupPath, err = cgroups.GetThisCgroupDir("devices")
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if err != nil {
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return nil, err
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}
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myCgroupPath = filepath.Join(myCgroupPath, name)
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}
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c := &configs.Cgroup{
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Path: myCgroupPath,
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Resources: &configs.Resources{},
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}
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c.Resources.AllowedDevices = allowedDevices
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r := spec.Linux.Resources
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if r == nil {
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return c, nil
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}
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for i, d := range spec.Linux.Resources.Devices {
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var (
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t = "a"
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major = int64(-1)
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minor = int64(-1)
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)
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if d.Type != nil {
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t = *d.Type
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}
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if d.Major != nil {
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major = *d.Major
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}
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if d.Minor != nil {
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minor = *d.Minor
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}
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if d.Access == nil || *d.Access == "" {
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return nil, fmt.Errorf("device access at %d field canot be empty", i)
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}
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dt, err := stringToDeviceRune(t)
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if err != nil {
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return nil, err
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}
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dd := &configs.Device{
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Type: dt,
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Major: major,
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Minor: minor,
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Permissions: *d.Access,
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Allow: d.Allow,
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}
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c.Resources.Devices = append(c.Resources.Devices, dd)
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}
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// append the default allowed devices to the end of the list
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c.Resources.Devices = append(c.Resources.Devices, allowedDevices...)
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if r.Memory != nil {
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if r.Memory.Limit != nil {
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c.Resources.Memory = int64(*r.Memory.Limit)
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}
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if r.Memory.Reservation != nil {
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c.Resources.MemoryReservation = int64(*r.Memory.Reservation)
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}
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if r.Memory.Swap != nil {
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c.Resources.MemorySwap = int64(*r.Memory.Swap)
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}
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if r.Memory.Kernel != nil {
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c.Resources.KernelMemory = int64(*r.Memory.Kernel)
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}
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if r.Memory.Swappiness != nil {
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swappiness := int64(*r.Memory.Swappiness)
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c.Resources.MemorySwappiness = &swappiness
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}
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}
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if r.CPU != nil {
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if r.CPU.Shares != nil {
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c.Resources.CpuShares = int64(*r.CPU.Shares)
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}
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if r.CPU.Quota != nil {
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c.Resources.CpuQuota = int64(*r.CPU.Quota)
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}
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if r.CPU.Period != nil {
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c.Resources.CpuPeriod = int64(*r.CPU.Period)
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}
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if r.CPU.RealtimeRuntime != nil {
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c.Resources.CpuRtRuntime = int64(*r.CPU.RealtimeRuntime)
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}
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if r.CPU.RealtimePeriod != nil {
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c.Resources.CpuRtPeriod = int64(*r.CPU.RealtimePeriod)
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}
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if r.CPU.Cpus != nil {
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c.Resources.CpusetCpus = *r.CPU.Cpus
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}
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if r.CPU.Mems != nil {
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c.Resources.CpusetMems = *r.CPU.Mems
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}
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}
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if r.Pids != nil {
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c.Resources.PidsLimit = *r.Pids.Limit
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}
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if r.BlockIO != nil {
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if r.BlockIO.Weight != nil {
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c.Resources.BlkioWeight = *r.BlockIO.Weight
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}
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if r.BlockIO.LeafWeight != nil {
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c.Resources.BlkioLeafWeight = *r.BlockIO.LeafWeight
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}
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if r.BlockIO.WeightDevice != nil {
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for _, wd := range r.BlockIO.WeightDevice {
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weightDevice := configs.NewWeightDevice(wd.Major, wd.Minor, *wd.Weight, *wd.LeafWeight)
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c.Resources.BlkioWeightDevice = append(c.Resources.BlkioWeightDevice, weightDevice)
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}
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}
|
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if r.BlockIO.ThrottleReadBpsDevice != nil {
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for _, td := range r.BlockIO.ThrottleReadBpsDevice {
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throttleDevice := configs.NewThrottleDevice(td.Major, td.Minor, *td.Rate)
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c.Resources.BlkioThrottleReadBpsDevice = append(c.Resources.BlkioThrottleReadBpsDevice, throttleDevice)
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}
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}
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if r.BlockIO.ThrottleWriteBpsDevice != nil {
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for _, td := range r.BlockIO.ThrottleWriteBpsDevice {
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throttleDevice := configs.NewThrottleDevice(td.Major, td.Minor, *td.Rate)
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c.Resources.BlkioThrottleWriteBpsDevice = append(c.Resources.BlkioThrottleWriteBpsDevice, throttleDevice)
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}
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}
|
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if r.BlockIO.ThrottleReadIOPSDevice != nil {
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for _, td := range r.BlockIO.ThrottleReadIOPSDevice {
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throttleDevice := configs.NewThrottleDevice(td.Major, td.Minor, *td.Rate)
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c.Resources.BlkioThrottleReadIOPSDevice = append(c.Resources.BlkioThrottleReadIOPSDevice, throttleDevice)
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}
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}
|
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if r.BlockIO.ThrottleWriteIOPSDevice != nil {
|
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for _, td := range r.BlockIO.ThrottleWriteIOPSDevice {
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throttleDevice := configs.NewThrottleDevice(td.Major, td.Minor, *td.Rate)
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c.Resources.BlkioThrottleWriteIOPSDevice = append(c.Resources.BlkioThrottleWriteIOPSDevice, throttleDevice)
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}
|
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}
|
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}
|
|
for _, l := range r.HugepageLimits {
|
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c.Resources.HugetlbLimit = append(c.Resources.HugetlbLimit, &configs.HugepageLimit{
|
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Pagesize: *l.Pagesize,
|
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Limit: *l.Limit,
|
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})
|
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}
|
|
if r.DisableOOMKiller != nil {
|
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c.Resources.OomKillDisable = *r.DisableOOMKiller
|
|
}
|
|
if r.Network != nil {
|
|
if r.Network.ClassID != nil {
|
|
c.Resources.NetClsClassid = string(*r.Network.ClassID)
|
|
}
|
|
for _, m := range r.Network.Priorities {
|
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c.Resources.NetPrioIfpriomap = append(c.Resources.NetPrioIfpriomap, &configs.IfPrioMap{
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Interface: m.Name,
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Priority: int64(m.Priority),
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})
|
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}
|
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}
|
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return c, nil
|
|
}
|
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|
|
func stringToDeviceRune(s string) (rune, error) {
|
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switch s {
|
|
case "a":
|
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return 'a', nil
|
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case "b":
|
|
return 'b', nil
|
|
case "c":
|
|
return 'c', nil
|
|
default:
|
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return 0, fmt.Errorf("invalid device type %q", s)
|
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}
|
|
}
|
|
|
|
func createDevices(spec *specs.Spec, config *configs.Config) error {
|
|
// add whitelisted devices
|
|
config.Devices = []*configs.Device{
|
|
{
|
|
Type: 'c',
|
|
Path: "/dev/null",
|
|
Major: 1,
|
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Minor: 3,
|
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FileMode: 0666,
|
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Uid: 0,
|
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Gid: 0,
|
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},
|
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{
|
|
Type: 'c',
|
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Path: "/dev/random",
|
|
Major: 1,
|
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Minor: 8,
|
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FileMode: 0666,
|
|
Uid: 0,
|
|
Gid: 0,
|
|
},
|
|
{
|
|
Type: 'c',
|
|
Path: "/dev/full",
|
|
Major: 1,
|
|
Minor: 7,
|
|
FileMode: 0666,
|
|
Uid: 0,
|
|
Gid: 0,
|
|
},
|
|
{
|
|
Type: 'c',
|
|
Path: "/dev/tty",
|
|
Major: 5,
|
|
Minor: 0,
|
|
FileMode: 0666,
|
|
Uid: 0,
|
|
Gid: 0,
|
|
},
|
|
{
|
|
Type: 'c',
|
|
Path: "/dev/zero",
|
|
Major: 1,
|
|
Minor: 5,
|
|
FileMode: 0666,
|
|
Uid: 0,
|
|
Gid: 0,
|
|
},
|
|
{
|
|
Type: 'c',
|
|
Path: "/dev/urandom",
|
|
Major: 1,
|
|
Minor: 9,
|
|
FileMode: 0666,
|
|
Uid: 0,
|
|
Gid: 0,
|
|
},
|
|
}
|
|
// merge in additional devices from the spec
|
|
for _, d := range spec.Linux.Devices {
|
|
var uid, gid uint32
|
|
if d.UID != nil {
|
|
uid = *d.UID
|
|
}
|
|
if d.GID != nil {
|
|
gid = *d.GID
|
|
}
|
|
dt, err := stringToDeviceRune(d.Type)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
device := &configs.Device{
|
|
Type: dt,
|
|
Path: d.Path,
|
|
Major: d.Major,
|
|
Minor: d.Minor,
|
|
FileMode: *d.FileMode,
|
|
Uid: uid,
|
|
Gid: gid,
|
|
}
|
|
config.Devices = append(config.Devices, device)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func setupUserNamespace(spec *specs.Spec, config *configs.Config) error {
|
|
if len(spec.Linux.UIDMappings) == 0 {
|
|
return nil
|
|
}
|
|
// do not override the specified user namespace path
|
|
if config.Namespaces.PathOf(configs.NEWUSER) == "" {
|
|
config.Namespaces.Add(configs.NEWUSER, "")
|
|
}
|
|
create := func(m specs.IDMapping) configs.IDMap {
|
|
return configs.IDMap{
|
|
HostID: int(m.HostID),
|
|
ContainerID: int(m.ContainerID),
|
|
Size: int(m.Size),
|
|
}
|
|
}
|
|
for _, m := range spec.Linux.UIDMappings {
|
|
config.UidMappings = append(config.UidMappings, create(m))
|
|
}
|
|
for _, m := range spec.Linux.GIDMappings {
|
|
config.GidMappings = append(config.GidMappings, create(m))
|
|
}
|
|
rootUID, err := config.HostUID()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
rootGID, err := config.HostGID()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, node := range config.Devices {
|
|
node.Uid = uint32(rootUID)
|
|
node.Gid = uint32(rootGID)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func createLibContainerRlimit(rlimit specs.Rlimit) (configs.Rlimit, error) {
|
|
rl, err := strToRlimit(rlimit.Type)
|
|
if err != nil {
|
|
return configs.Rlimit{}, err
|
|
}
|
|
return configs.Rlimit{
|
|
Type: rl,
|
|
Hard: uint64(rlimit.Hard),
|
|
Soft: uint64(rlimit.Soft),
|
|
}, nil
|
|
}
|
|
|
|
// parseMountOptions parses the string and returns the flags, propagation
|
|
// flags and any mount data that it contains.
|
|
func parseMountOptions(options []string) (int, []int, string) {
|
|
var (
|
|
flag int
|
|
pgflag []int
|
|
data []string
|
|
)
|
|
flags := map[string]struct {
|
|
clear bool
|
|
flag int
|
|
}{
|
|
"async": {true, syscall.MS_SYNCHRONOUS},
|
|
"atime": {true, syscall.MS_NOATIME},
|
|
"bind": {false, syscall.MS_BIND},
|
|
"defaults": {false, 0},
|
|
"dev": {true, syscall.MS_NODEV},
|
|
"diratime": {true, syscall.MS_NODIRATIME},
|
|
"dirsync": {false, syscall.MS_DIRSYNC},
|
|
"exec": {true, syscall.MS_NOEXEC},
|
|
"mand": {false, syscall.MS_MANDLOCK},
|
|
"noatime": {false, syscall.MS_NOATIME},
|
|
"nodev": {false, syscall.MS_NODEV},
|
|
"nodiratime": {false, syscall.MS_NODIRATIME},
|
|
"noexec": {false, syscall.MS_NOEXEC},
|
|
"nomand": {true, syscall.MS_MANDLOCK},
|
|
"norelatime": {true, syscall.MS_RELATIME},
|
|
"nostrictatime": {true, syscall.MS_STRICTATIME},
|
|
"nosuid": {false, syscall.MS_NOSUID},
|
|
"rbind": {false, syscall.MS_BIND | syscall.MS_REC},
|
|
"relatime": {false, syscall.MS_RELATIME},
|
|
"remount": {false, syscall.MS_REMOUNT},
|
|
"ro": {false, syscall.MS_RDONLY},
|
|
"rw": {true, syscall.MS_RDONLY},
|
|
"strictatime": {false, syscall.MS_STRICTATIME},
|
|
"suid": {true, syscall.MS_NOSUID},
|
|
"sync": {false, syscall.MS_SYNCHRONOUS},
|
|
}
|
|
propagationFlags := map[string]struct {
|
|
clear bool
|
|
flag int
|
|
}{
|
|
"private": {false, syscall.MS_PRIVATE},
|
|
"shared": {false, syscall.MS_SHARED},
|
|
"slave": {false, syscall.MS_SLAVE},
|
|
"unbindable": {false, syscall.MS_UNBINDABLE},
|
|
"rprivate": {false, syscall.MS_PRIVATE | syscall.MS_REC},
|
|
"rshared": {false, syscall.MS_SHARED | syscall.MS_REC},
|
|
"rslave": {false, syscall.MS_SLAVE | syscall.MS_REC},
|
|
"runbindable": {false, syscall.MS_UNBINDABLE | syscall.MS_REC},
|
|
}
|
|
for _, o := range options {
|
|
// If the option does not exist in the flags table or the flag
|
|
// is not supported on the platform,
|
|
// then it is a data value for a specific fs type
|
|
if f, exists := flags[o]; exists && f.flag != 0 {
|
|
if f.clear {
|
|
flag &= ^f.flag
|
|
} else {
|
|
flag |= f.flag
|
|
}
|
|
} else if f, exists := propagationFlags[o]; exists && f.flag != 0 {
|
|
pgflag = append(pgflag, f.flag)
|
|
} else {
|
|
data = append(data, o)
|
|
}
|
|
}
|
|
return flag, pgflag, strings.Join(data, ",")
|
|
}
|
|
|
|
func setupSeccomp(config *specs.Seccomp) (*configs.Seccomp, error) {
|
|
if config == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
// No default action specified, no syscalls listed, assume seccomp disabled
|
|
if config.DefaultAction == "" && len(config.Syscalls) == 0 {
|
|
return nil, nil
|
|
}
|
|
|
|
newConfig := new(configs.Seccomp)
|
|
newConfig.Syscalls = []*configs.Syscall{}
|
|
|
|
if len(config.Architectures) > 0 {
|
|
newConfig.Architectures = []string{}
|
|
for _, arch := range config.Architectures {
|
|
newArch, err := seccomp.ConvertStringToArch(string(arch))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
newConfig.Architectures = append(newConfig.Architectures, newArch)
|
|
}
|
|
}
|
|
|
|
// Convert default action from string representation
|
|
newDefaultAction, err := seccomp.ConvertStringToAction(string(config.DefaultAction))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
newConfig.DefaultAction = newDefaultAction
|
|
|
|
// Loop through all syscall blocks and convert them to libcontainer format
|
|
for _, call := range config.Syscalls {
|
|
newAction, err := seccomp.ConvertStringToAction(string(call.Action))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
newCall := configs.Syscall{
|
|
Name: call.Name,
|
|
Action: newAction,
|
|
Args: []*configs.Arg{},
|
|
}
|
|
|
|
// Loop through all the arguments of the syscall and convert them
|
|
for _, arg := range call.Args {
|
|
newOp, err := seccomp.ConvertStringToOperator(string(arg.Op))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
newArg := configs.Arg{
|
|
Index: arg.Index,
|
|
Value: arg.Value,
|
|
ValueTwo: arg.ValueTwo,
|
|
Op: newOp,
|
|
}
|
|
|
|
newCall.Args = append(newCall.Args, &newArg)
|
|
}
|
|
|
|
newConfig.Syscalls = append(newConfig.Syscalls, &newCall)
|
|
}
|
|
|
|
return newConfig, nil
|
|
}
|
|
|
|
func createHooks(rspec *specs.Spec, config *configs.Config) {
|
|
config.Hooks = &configs.Hooks{}
|
|
for _, h := range rspec.Hooks.Prestart {
|
|
cmd := configs.Command{
|
|
Path: h.Path,
|
|
Args: h.Args,
|
|
Env: h.Env,
|
|
}
|
|
config.Hooks.Prestart = append(config.Hooks.Prestart, configs.NewCommandHook(cmd))
|
|
}
|
|
for _, h := range rspec.Hooks.Poststart {
|
|
cmd := configs.Command{
|
|
Path: h.Path,
|
|
Args: h.Args,
|
|
Env: h.Env,
|
|
}
|
|
config.Hooks.Poststart = append(config.Hooks.Poststart, configs.NewCommandHook(cmd))
|
|
}
|
|
for _, h := range rspec.Hooks.Poststop {
|
|
cmd := configs.Command{
|
|
Path: h.Path,
|
|
Args: h.Args,
|
|
Env: h.Env,
|
|
}
|
|
config.Hooks.Poststop = append(config.Hooks.Poststop, configs.NewCommandHook(cmd))
|
|
}
|
|
}
|