Build and install from GOPATH

* Rename 'vendor/src' -> 'vendor'
  * Ignore vendor/ instead of vendor/src/ for lint
* Rename 'cmd/client' -> 'cmd/ocic' to make it 'go install'able
* Rename 'cmd/server' -> 'cmd/ocid' to make it 'go install'able
* Update Makefile to build and install from GOPATH
* Update tests to locate ocid/ocic in GOPATH/bin
* Search for binaries in GOPATH/bin instead of PATH
* Install tools using `go get -u`, so they are updated on each run

Signed-off-by: Jonathan Yu <jawnsy@redhat.com>

vendor/github.com/opencontainers/runtime-tools/generate/generate.go

@@ -0,0 +1,949 @@
+// Package generate implements functions generating container config files.
+package generate
+
+import (
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"runtime"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+	"github.com/opencontainers/runtime-tools/generate/seccomp"
+	"github.com/syndtr/gocapability/capability"
+)
+
+var (
+	// Namespaces include the names of supported namespaces.
+	Namespaces = []string{"network", "pid", "mount", "ipc", "uts", "user", "cgroup"}
+)
+
+// Generator represents a generator for a container spec.
+type Generator struct {
+	spec         *rspec.Spec
+	HostSpecific bool
+}
+
+// ExportOptions have toggles for exporting only certain parts of the specification
+type ExportOptions struct {
+	Seccomp bool // seccomp toggles if only seccomp should be exported
+}
+
+// New creates a spec Generator with the default spec.
+func New() Generator {
+	spec := rspec.Spec{
+		Version: rspec.Version,
+		Platform: rspec.Platform{
+			OS:   runtime.GOOS,
+			Arch: runtime.GOARCH,
+		},
+		Root: rspec.Root{
+			Path:     "",
+			Readonly: false,
+		},
+		Process: rspec.Process{
+			Terminal: false,
+			User:     rspec.User{},
+			Args: []string{
+				"sh",
+			},
+			Env: []string{
+				"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
+				"TERM=xterm",
+			},
+			Cwd: "/",
+			Capabilities: []string{
+				"CAP_CHOWN",
+				"CAP_DAC_OVERRIDE",
+				"CAP_FSETID",
+				"CAP_FOWNER",
+				"CAP_MKNOD",
+				"CAP_NET_RAW",
+				"CAP_SETGID",
+				"CAP_SETUID",
+				"CAP_SETFCAP",
+				"CAP_SETPCAP",
+				"CAP_NET_BIND_SERVICE",
+				"CAP_SYS_CHROOT",
+				"CAP_KILL",
+				"CAP_AUDIT_WRITE",
+			},
+			Rlimits: []rspec.Rlimit{
+				{
+					Type: "RLIMIT_NOFILE",
+					Hard: uint64(1024),
+					Soft: uint64(1024),
+				},
+			},
+		},
+		Hostname: "mrsdalloway",
+		Mounts: []rspec.Mount{
+			{
+				Destination: "/proc",
+				Type:        "proc",
+				Source:      "proc",
+				Options:     nil,
+			},
+			{
+				Destination: "/dev",
+				Type:        "tmpfs",
+				Source:      "tmpfs",
+				Options:     []string{"nosuid", "strictatime", "mode=755", "size=65536k"},
+			},
+			{
+				Destination: "/dev/pts",
+				Type:        "devpts",
+				Source:      "devpts",
+				Options:     []string{"nosuid", "noexec", "newinstance", "ptmxmode=0666", "mode=0620", "gid=5"},
+			},
+			{
+				Destination: "/dev/shm",
+				Type:        "tmpfs",
+				Source:      "shm",
+				Options:     []string{"nosuid", "noexec", "nodev", "mode=1777", "size=65536k"},
+			},
+			{
+				Destination: "/dev/mqueue",
+				Type:        "mqueue",
+				Source:      "mqueue",
+				Options:     []string{"nosuid", "noexec", "nodev"},
+			},
+			{
+				Destination: "/sys",
+				Type:        "sysfs",
+				Source:      "sysfs",
+				Options:     []string{"nosuid", "noexec", "nodev", "ro"},
+			},
+		},
+		Linux: &rspec.Linux{
+			Resources: &rspec.Resources{
+				Devices: []rspec.DeviceCgroup{
+					{
+						Allow:  false,
+						Access: strPtr("rwm"),
+					},
+				},
+			},
+			Namespaces: []rspec.Namespace{
+				{
+					Type: "pid",
+				},
+				{
+					Type: "network",
+				},
+				{
+					Type: "ipc",
+				},
+				{
+					Type: "uts",
+				},
+				{
+					Type: "mount",
+				},
+			},
+			Devices: []rspec.Device{},
+		},
+	}
+	spec.Linux.Seccomp = seccomp.DefaultProfile(&spec)
+	return Generator{
+		spec: &spec,
+	}
+}
+
+// NewFromSpec creates a spec Generator from a given spec.
+func NewFromSpec(spec *rspec.Spec) Generator {
+	return Generator{
+		spec: spec,
+	}
+}
+
+// NewFromFile loads the template specified in a file into a spec Generator.
+func NewFromFile(path string) (Generator, error) {
+	cf, err := os.Open(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return Generator{}, fmt.Errorf("template configuration at %s not found", path)
+		}
+	}
+	defer cf.Close()
+
+	return NewFromTemplate(cf)
+}
+
+// NewFromTemplate loads the template from io.Reader into a spec Generator.
+func NewFromTemplate(r io.Reader) (Generator, error) {
+	var spec rspec.Spec
+	if err := json.NewDecoder(r).Decode(&spec); err != nil {
+		return Generator{}, err
+	}
+	return Generator{
+		spec: &spec,
+	}, nil
+}
+
+// SetSpec sets the spec in the Generator g.
+func (g *Generator) SetSpec(spec *rspec.Spec) {
+	g.spec = spec
+}
+
+// Spec gets the spec in the Generator g.
+func (g *Generator) Spec() *rspec.Spec {
+	return g.spec
+}
+
+// Save writes the spec into w.
+func (g *Generator) Save(w io.Writer, exportOpts ExportOptions) (err error) {
+	var data []byte
+
+	if exportOpts.Seccomp {
+		data, err = json.MarshalIndent(g.spec.Linux.Seccomp, "", "\t")
+	} else {
+		data, err = json.MarshalIndent(g.spec, "", "\t")
+	}
+	if err != nil {
+		return err
+	}
+
+	_, err = w.Write(data)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// SaveToFile writes the spec into a file.
+func (g *Generator) SaveToFile(path string, exportOpts ExportOptions) error {
+	f, err := os.Create(path)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+	return g.Save(f, exportOpts)
+}
+
+// SetVersion sets g.spec.Version.
+func (g *Generator) SetVersion(version string) {
+	g.initSpec()
+	g.spec.Version = version
+}
+
+// SetRootPath sets g.spec.Root.Path.
+func (g *Generator) SetRootPath(path string) {
+	g.initSpec()
+	g.spec.Root.Path = path
+}
+
+// SetRootReadonly sets g.spec.Root.Readonly.
+func (g *Generator) SetRootReadonly(b bool) {
+	g.initSpec()
+	g.spec.Root.Readonly = b
+}
+
+// SetHostname sets g.spec.Hostname.
+func (g *Generator) SetHostname(s string) {
+	g.initSpec()
+	g.spec.Hostname = s
+}
+
+// ClearAnnotations clears g.spec.Annotations.
+func (g *Generator) ClearAnnotations() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Annotations = make(map[string]string)
+}
+
+// AddAnnotation adds an annotation into g.spec.Annotations.
+func (g *Generator) AddAnnotation(key, value string) {
+	g.initSpecAnnotations()
+	g.spec.Annotations[key] = value
+}
+
+// RemoveAnnotation remove an annotation from g.spec.Annotations.
+func (g *Generator) RemoveAnnotation(key string) {
+	if g.spec == nil || g.spec.Annotations == nil {
+		return
+	}
+	delete(g.spec.Annotations, key)
+}
+
+// SetPlatformOS sets g.spec.Process.OS.
+func (g *Generator) SetPlatformOS(os string) {
+	g.initSpec()
+	g.spec.Platform.OS = os
+}
+
+// SetPlatformArch sets g.spec.Platform.Arch.
+func (g *Generator) SetPlatformArch(arch string) {
+	g.initSpec()
+	g.spec.Platform.Arch = arch
+}
+
+// SetProcessUID sets g.spec.Process.User.UID.
+func (g *Generator) SetProcessUID(uid uint32) {
+	g.initSpec()
+	g.spec.Process.User.UID = uid
+}
+
+// SetProcessGID sets g.spec.Process.User.GID.
+func (g *Generator) SetProcessGID(gid uint32) {
+	g.initSpec()
+	g.spec.Process.User.GID = gid
+}
+
+// SetProcessCwd sets g.spec.Process.Cwd.
+func (g *Generator) SetProcessCwd(cwd string) {
+	g.initSpec()
+	g.spec.Process.Cwd = cwd
+}
+
+// SetProcessNoNewPrivileges sets g.spec.Process.NoNewPrivileges.
+func (g *Generator) SetProcessNoNewPrivileges(b bool) {
+	g.initSpec()
+	g.spec.Process.NoNewPrivileges = b
+}
+
+// SetProcessTerminal sets g.spec.Process.Terminal.
+func (g *Generator) SetProcessTerminal(b bool) {
+	g.initSpec()
+	g.spec.Process.Terminal = b
+}
+
+// SetProcessApparmorProfile sets g.spec.Process.ApparmorProfile.
+func (g *Generator) SetProcessApparmorProfile(prof string) {
+	g.initSpec()
+	g.spec.Process.ApparmorProfile = prof
+}
+
+// SetProcessArgs sets g.spec.Process.Args.
+func (g *Generator) SetProcessArgs(args []string) {
+	g.initSpec()
+	g.spec.Process.Args = args
+}
+
+// ClearProcessEnv clears g.spec.Process.Env.
+func (g *Generator) ClearProcessEnv() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Process.Env = []string{}
+}
+
+// AddProcessEnv adds env into g.spec.Process.Env.
+func (g *Generator) AddProcessEnv(env string) {
+	g.initSpec()
+	g.spec.Process.Env = append(g.spec.Process.Env, env)
+}
+
+// AddProcessRlimits adds rlimit into g.spec.Process.Rlimits.
+func (g *Generator) AddProcessRlimits(rType string, rHard uint64, rSoft uint64) {
+	g.initSpec()
+	for i, rlimit := range g.spec.Process.Rlimits {
+		if rlimit.Type == rType {
+			g.spec.Process.Rlimits[i].Hard = rHard
+			g.spec.Process.Rlimits[i].Soft = rSoft
+			return
+		}
+	}
+
+	newRlimit := rspec.Rlimit{
+		Type: rType,
+		Hard: rHard,
+		Soft: rSoft,
+	}
+	g.spec.Process.Rlimits = append(g.spec.Process.Rlimits, newRlimit)
+}
+
+// RemoveProcessRlimits removes a rlimit from g.spec.Process.Rlimits.
+func (g *Generator) RemoveProcessRlimits(rType string) error {
+	if g.spec == nil {
+		return nil
+	}
+	for i, rlimit := range g.spec.Process.Rlimits {
+		if rlimit.Type == rType {
+			g.spec.Process.Rlimits = append(g.spec.Process.Rlimits[:i], g.spec.Process.Rlimits[i+1:]...)
+			return nil
+		}
+	}
+	return nil
+}
+
+// ClearProcessRlimits clear g.spec.Process.Rlimits.
+func (g *Generator) ClearProcessRlimits() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Process.Rlimits = []rspec.Rlimit{}
+}
+
+// ClearProcessAdditionalGids clear g.spec.Process.AdditionalGids.
+func (g *Generator) ClearProcessAdditionalGids() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Process.User.AdditionalGids = []uint32{}
+}
+
+// AddProcessAdditionalGid adds an additional gid into g.spec.Process.AdditionalGids.
+func (g *Generator) AddProcessAdditionalGid(gid uint32) {
+	g.initSpec()
+	for _, group := range g.spec.Process.User.AdditionalGids {
+		if group == gid {
+			return
+		}
+	}
+	g.spec.Process.User.AdditionalGids = append(g.spec.Process.User.AdditionalGids, gid)
+}
+
+// SetProcessSelinuxLabel sets g.spec.Process.SelinuxLabel.
+func (g *Generator) SetProcessSelinuxLabel(label string) {
+	g.initSpec()
+	g.spec.Process.SelinuxLabel = label
+}
+
+// SetLinuxCgroupsPath sets g.spec.Linux.CgroupsPath.
+func (g *Generator) SetLinuxCgroupsPath(path string) {
+	g.initSpecLinux()
+	g.spec.Linux.CgroupsPath = strPtr(path)
+}
+
+// SetLinuxMountLabel sets g.spec.Linux.MountLabel.
+func (g *Generator) SetLinuxMountLabel(label string) {
+	g.initSpecLinux()
+	g.spec.Linux.MountLabel = label
+}
+
+// SetLinuxResourcesDisableOOMKiller sets g.spec.Linux.Resources.DisableOOMKiller.
+func (g *Generator) SetLinuxResourcesDisableOOMKiller(disable bool) {
+	g.initSpecLinuxResources()
+	g.spec.Linux.Resources.DisableOOMKiller = &disable
+}
+
+// SetLinuxResourcesOOMScoreAdj sets g.spec.Linux.Resources.OOMScoreAdj.
+func (g *Generator) SetLinuxResourcesOOMScoreAdj(adj int) {
+	g.initSpecLinuxResources()
+	g.spec.Linux.Resources.OOMScoreAdj = &adj
+}
+
+// SetLinuxResourcesCPUShares sets g.spec.Linux.Resources.CPU.Shares.
+func (g *Generator) SetLinuxResourcesCPUShares(shares uint64) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.Shares = &shares
+}
+
+// SetLinuxResourcesCPUQuota sets g.spec.Linux.Resources.CPU.Quota.
+func (g *Generator) SetLinuxResourcesCPUQuota(quota uint64) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.Quota = &quota
+}
+
+// SetLinuxResourcesCPUPeriod sets g.spec.Linux.Resources.CPU.Period.
+func (g *Generator) SetLinuxResourcesCPUPeriod(period uint64) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.Period = &period
+}
+
+// SetLinuxResourcesCPURealtimeRuntime sets g.spec.Linux.Resources.CPU.RealtimeRuntime.
+func (g *Generator) SetLinuxResourcesCPURealtimeRuntime(time uint64) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.RealtimeRuntime = &time
+}
+
+// SetLinuxResourcesCPURealtimePeriod sets g.spec.Linux.Resources.CPU.RealtimePeriod.
+func (g *Generator) SetLinuxResourcesCPURealtimePeriod(period uint64) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.RealtimePeriod = &period
+}
+
+// SetLinuxResourcesCPUCpus sets g.spec.Linux.Resources.CPU.Cpus.
+func (g *Generator) SetLinuxResourcesCPUCpus(cpus string) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.Cpus = &cpus
+}
+
+// SetLinuxResourcesCPUMems sets g.spec.Linux.Resources.CPU.Mems.
+func (g *Generator) SetLinuxResourcesCPUMems(mems string) {
+	g.initSpecLinuxResourcesCPU()
+	g.spec.Linux.Resources.CPU.Mems = &mems
+}
+
+// SetLinuxResourcesMemoryLimit sets g.spec.Linux.Resources.Memory.Limit.
+func (g *Generator) SetLinuxResourcesMemoryLimit(limit uint64) {
+	g.initSpecLinuxResourcesMemory()
+	g.spec.Linux.Resources.Memory.Limit = &limit
+}
+
+// SetLinuxResourcesMemoryReservation sets g.spec.Linux.Resources.Memory.Reservation.
+func (g *Generator) SetLinuxResourcesMemoryReservation(reservation uint64) {
+	g.initSpecLinuxResourcesMemory()
+	g.spec.Linux.Resources.Memory.Reservation = &reservation
+}
+
+// SetLinuxResourcesMemorySwap sets g.spec.Linux.Resources.Memory.Swap.
+func (g *Generator) SetLinuxResourcesMemorySwap(swap uint64) {
+	g.initSpecLinuxResourcesMemory()
+	g.spec.Linux.Resources.Memory.Swap = &swap
+}
+
+// SetLinuxResourcesMemoryKernel sets g.spec.Linux.Resources.Memory.Kernel.
+func (g *Generator) SetLinuxResourcesMemoryKernel(kernel uint64) {
+	g.initSpecLinuxResourcesMemory()
+	g.spec.Linux.Resources.Memory.Kernel = &kernel
+}
+
+// SetLinuxResourcesMemoryKernelTCP sets g.spec.Linux.Resources.Memory.KernelTCP.
+func (g *Generator) SetLinuxResourcesMemoryKernelTCP(kernelTCP uint64) {
+	g.initSpecLinuxResourcesMemory()
+	g.spec.Linux.Resources.Memory.KernelTCP = &kernelTCP
+}
+
+// SetLinuxResourcesMemorySwappiness sets g.spec.Linux.Resources.Memory.Swappiness.
+func (g *Generator) SetLinuxResourcesMemorySwappiness(swappiness uint64) {
+	g.initSpecLinuxResourcesMemory()
+	g.spec.Linux.Resources.Memory.Swappiness = &swappiness
+}
+
+// SetLinuxResourcesNetworkClassID sets g.spec.Linux.Resources.Network.ClassID.
+func (g *Generator) SetLinuxResourcesNetworkClassID(classid uint32) {
+	g.initSpecLinuxResourcesNetwork()
+	g.spec.Linux.Resources.Network.ClassID = &classid
+}
+
+// AddLinuxResourcesNetworkPriorities adds or sets g.spec.Linux.Resources.Network.Priorities.
+func (g *Generator) AddLinuxResourcesNetworkPriorities(name string, prio uint32) {
+	g.initSpecLinuxResourcesNetwork()
+	for i, netPriority := range g.spec.Linux.Resources.Network.Priorities {
+		if netPriority.Name == name {
+			g.spec.Linux.Resources.Network.Priorities[i].Priority = prio
+			return
+		}
+	}
+	interfacePrio := new(rspec.InterfacePriority)
+	interfacePrio.Name = name
+	interfacePrio.Priority = prio
+	g.spec.Linux.Resources.Network.Priorities = append(g.spec.Linux.Resources.Network.Priorities, *interfacePrio)
+}
+
+// DropLinuxResourcesNetworkPriorities drops one item from g.spec.Linux.Resources.Network.Priorities.
+func (g *Generator) DropLinuxResourcesNetworkPriorities(name string) {
+	g.initSpecLinuxResourcesNetwork()
+	for i, netPriority := range g.spec.Linux.Resources.Network.Priorities {
+		if netPriority.Name == name {
+			g.spec.Linux.Resources.Network.Priorities = append(g.spec.Linux.Resources.Network.Priorities[:i], g.spec.Linux.Resources.Network.Priorities[i+1:]...)
+			return
+		}
+	}
+}
+
+// SetLinuxResourcesPidsLimit sets g.spec.Linux.Resources.Pids.Limit.
+func (g *Generator) SetLinuxResourcesPidsLimit(limit int64) {
+	g.initSpecLinuxResourcesPids()
+	g.spec.Linux.Resources.Pids.Limit = &limit
+}
+
+// ClearLinuxSysctl clears g.spec.Linux.Sysctl.
+func (g *Generator) ClearLinuxSysctl() {
+	if g.spec == nil || g.spec.Linux == nil {
+		return
+	}
+	g.spec.Linux.Sysctl = make(map[string]string)
+}
+
+// AddLinuxSysctl adds a new sysctl config into g.spec.Linux.Sysctl.
+func (g *Generator) AddLinuxSysctl(key, value string) {
+	g.initSpecLinuxSysctl()
+	g.spec.Linux.Sysctl[key] = value
+}
+
+// RemoveLinuxSysctl removes a sysctl config from g.spec.Linux.Sysctl.
+func (g *Generator) RemoveLinuxSysctl(key string) {
+	if g.spec == nil || g.spec.Linux == nil || g.spec.Linux.Sysctl == nil {
+		return
+	}
+	delete(g.spec.Linux.Sysctl, key)
+}
+
+// ClearLinuxUIDMappings clear g.spec.Linux.UIDMappings.
+func (g *Generator) ClearLinuxUIDMappings() {
+	if g.spec == nil || g.spec.Linux == nil {
+		return
+	}
+	g.spec.Linux.UIDMappings = []rspec.IDMapping{}
+}
+
+// AddLinuxUIDMapping adds uidMap into g.spec.Linux.UIDMappings.
+func (g *Generator) AddLinuxUIDMapping(hid, cid, size uint32) {
+	idMapping := rspec.IDMapping{
+		HostID:      hid,
+		ContainerID: cid,
+		Size:        size,
+	}
+
+	g.initSpecLinux()
+	g.spec.Linux.UIDMappings = append(g.spec.Linux.UIDMappings, idMapping)
+}
+
+// ClearLinuxGIDMappings clear g.spec.Linux.GIDMappings.
+func (g *Generator) ClearLinuxGIDMappings() {
+	if g.spec == nil || g.spec.Linux == nil {
+		return
+	}
+	g.spec.Linux.GIDMappings = []rspec.IDMapping{}
+}
+
+// AddLinuxGIDMapping adds gidMap into g.spec.Linux.GIDMappings.
+func (g *Generator) AddLinuxGIDMapping(hid, cid, size uint32) {
+	idMapping := rspec.IDMapping{
+		HostID:      hid,
+		ContainerID: cid,
+		Size:        size,
+	}
+
+	g.initSpecLinux()
+	g.spec.Linux.GIDMappings = append(g.spec.Linux.GIDMappings, idMapping)
+}
+
+// SetLinuxRootPropagation sets g.spec.Linux.RootfsPropagation.
+func (g *Generator) SetLinuxRootPropagation(rp string) error {
+	switch rp {
+	case "":
+	case "private":
+	case "rprivate":
+	case "slave":
+	case "rslave":
+	case "shared":
+	case "rshared":
+	default:
+		return fmt.Errorf("rootfs-propagation must be empty or one of private|rprivate|slave|rslave|shared|rshared")
+	}
+	g.initSpecLinux()
+	g.spec.Linux.RootfsPropagation = rp
+	return nil
+}
+
+// ClearPreStartHooks clear g.spec.Hooks.Prestart.
+func (g *Generator) ClearPreStartHooks() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Hooks.Prestart = []rspec.Hook{}
+}
+
+// AddPreStartHook add a prestart hook into g.spec.Hooks.Prestart.
+func (g *Generator) AddPreStartHook(path string, args []string) {
+	g.initSpec()
+	hook := rspec.Hook{Path: path, Args: args}
+	g.spec.Hooks.Prestart = append(g.spec.Hooks.Prestart, hook)
+}
+
+// ClearPostStopHooks clear g.spec.Hooks.Poststop.
+func (g *Generator) ClearPostStopHooks() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Hooks.Poststop = []rspec.Hook{}
+}
+
+// AddPostStopHook adds a poststop hook into g.spec.Hooks.Poststop.
+func (g *Generator) AddPostStopHook(path string, args []string) {
+	g.initSpec()
+	hook := rspec.Hook{Path: path, Args: args}
+	g.spec.Hooks.Poststop = append(g.spec.Hooks.Poststop, hook)
+}
+
+// ClearPostStartHooks clear g.spec.Hooks.Poststart.
+func (g *Generator) ClearPostStartHooks() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Hooks.Poststart = []rspec.Hook{}
+}
+
+// AddPostStartHook adds a poststart hook into g.spec.Hooks.Poststart.
+func (g *Generator) AddPostStartHook(path string, args []string) {
+	g.initSpec()
+	hook := rspec.Hook{Path: path, Args: args}
+	g.spec.Hooks.Poststart = append(g.spec.Hooks.Poststart, hook)
+}
+
+// AddTmpfsMount adds a tmpfs mount into g.spec.Mounts.
+func (g *Generator) AddTmpfsMount(dest string, options []string) {
+	mnt := rspec.Mount{
+		Destination: dest,
+		Type:        "tmpfs",
+		Source:      "tmpfs",
+		Options:     options,
+	}
+
+	g.initSpec()
+	g.spec.Mounts = append(g.spec.Mounts, mnt)
+}
+
+// AddCgroupsMount adds a cgroup mount into g.spec.Mounts.
+func (g *Generator) AddCgroupsMount(mountCgroupOption string) error {
+	switch mountCgroupOption {
+	case "ro":
+	case "rw":
+		break
+	case "no":
+		return nil
+	default:
+		return fmt.Errorf("--mount-cgroups should be one of (ro,rw,no)")
+	}
+
+	mnt := rspec.Mount{
+		Destination: "/sys/fs/cgroup",
+		Type:        "cgroup",
+		Source:      "cgroup",
+		Options:     []string{"nosuid", "noexec", "nodev", "relatime", mountCgroupOption},
+	}
+	g.initSpec()
+	g.spec.Mounts = append(g.spec.Mounts, mnt)
+
+	return nil
+}
+
+// AddBindMount adds a bind mount into g.spec.Mounts.
+func (g *Generator) AddBindMount(source, dest string, options []string) {
+	if len(options) == 0 {
+		options = []string{"rw"}
+	}
+
+	// We have to make sure that there is a bind option set, otherwise it won't
+	// be an actual bindmount.
+	foundBindOption := false
+	for _, opt := range options {
+		if opt == "bind" || opt == "rbind" {
+			foundBindOption = true
+			break
+		}
+	}
+	if !foundBindOption {
+		options = append(options, "bind")
+	}
+
+	mnt := rspec.Mount{
+		Destination: dest,
+		Type:        "bind",
+		Source:      source,
+		Options:     options,
+	}
+	g.initSpec()
+	g.spec.Mounts = append(g.spec.Mounts, mnt)
+}
+
+// SetupPrivileged sets up the privilege-related fields inside g.spec.
+func (g *Generator) SetupPrivileged(privileged bool) {
+	if privileged {
+		// Add all capabilities in privileged mode.
+		var finalCapList []string
+		for _, cap := range capability.List() {
+			if g.HostSpecific && cap > lastCap() {
+				continue
+			}
+			finalCapList = append(finalCapList, fmt.Sprintf("CAP_%s", strings.ToUpper(cap.String())))
+		}
+		g.initSpecLinux()
+		g.spec.Process.Capabilities = finalCapList
+		g.spec.Process.SelinuxLabel = ""
+		g.spec.Process.ApparmorProfile = ""
+		g.spec.Linux.Seccomp = nil
+	}
+}
+
+func lastCap() capability.Cap {
+	last := capability.CAP_LAST_CAP
+	// hack for RHEL6 which has no /proc/sys/kernel/cap_last_cap
+	if last == capability.Cap(63) {
+		last = capability.CAP_BLOCK_SUSPEND
+	}
+
+	return last
+}
+
+func checkCap(c string, hostSpecific bool) error {
+	isValid := false
+	cp := strings.ToUpper(c)
+
+	for _, cap := range capability.List() {
+		if cp == strings.ToUpper(cap.String()) {
+			if hostSpecific && cap > lastCap() {
+				return fmt.Errorf("CAP_%s is not supported on the current host", cp)
+			}
+			isValid = true
+			break
+		}
+	}
+
+	if !isValid {
+		return fmt.Errorf("Invalid value passed for adding capability")
+	}
+	return nil
+}
+
+// ClearProcessCapabilities clear g.spec.Process.Capabilities.
+func (g *Generator) ClearProcessCapabilities() {
+	if g.spec == nil {
+		return
+	}
+	g.spec.Process.Capabilities = []string{}
+}
+
+// AddProcessCapability adds a process capability into g.spec.Process.Capabilities.
+func (g *Generator) AddProcessCapability(c string) error {
+	if err := checkCap(c, g.HostSpecific); err != nil {
+		return err
+	}
+
+	cp := fmt.Sprintf("CAP_%s", strings.ToUpper(c))
+
+	g.initSpec()
+	for _, cap := range g.spec.Process.Capabilities {
+		if strings.ToUpper(cap) == cp {
+			return nil
+		}
+	}
+
+	g.spec.Process.Capabilities = append(g.spec.Process.Capabilities, cp)
+	return nil
+}
+
+// DropProcessCapability drops a process capability from g.spec.Process.Capabilities.
+func (g *Generator) DropProcessCapability(c string) error {
+	if err := checkCap(c, g.HostSpecific); err != nil {
+		return err
+	}
+
+	cp := fmt.Sprintf("CAP_%s", strings.ToUpper(c))
+
+	g.initSpec()
+	for i, cap := range g.spec.Process.Capabilities {
+		if strings.ToUpper(cap) == cp {
+			g.spec.Process.Capabilities = append(g.spec.Process.Capabilities[:i], g.spec.Process.Capabilities[i+1:]...)
+			return nil
+		}
+	}
+
+	return nil
+}
+
+func mapStrToNamespace(ns string, path string) (rspec.Namespace, error) {
+	switch ns {
+	case "network":
+		return rspec.Namespace{Type: rspec.NetworkNamespace, Path: path}, nil
+	case "pid":
+		return rspec.Namespace{Type: rspec.PIDNamespace, Path: path}, nil
+	case "mount":
+		return rspec.Namespace{Type: rspec.MountNamespace, Path: path}, nil
+	case "ipc":
+		return rspec.Namespace{Type: rspec.IPCNamespace, Path: path}, nil
+	case "uts":
+		return rspec.Namespace{Type: rspec.UTSNamespace, Path: path}, nil
+	case "user":
+		return rspec.Namespace{Type: rspec.UserNamespace, Path: path}, nil
+	case "cgroup":
+		return rspec.Namespace{Type: rspec.CgroupNamespace, Path: path}, nil
+	default:
+		return rspec.Namespace{}, fmt.Errorf("Should not reach here!")
+	}
+}
+
+// ClearLinuxNamespaces clear g.spec.Linux.Namespaces.
+func (g *Generator) ClearLinuxNamespaces() {
+	if g.spec == nil || g.spec.Linux == nil {
+		return
+	}
+	g.spec.Linux.Namespaces = []rspec.Namespace{}
+}
+
+// AddOrReplaceLinuxNamespace adds or replaces a namespace inside
+// g.spec.Linux.Namespaces.
+func (g *Generator) AddOrReplaceLinuxNamespace(ns string, path string) error {
+	namespace, err := mapStrToNamespace(ns, path)
+	if err != nil {
+		return err
+	}
+
+	g.initSpecLinux()
+	for i, ns := range g.spec.Linux.Namespaces {
+		if ns.Type == namespace.Type {
+			g.spec.Linux.Namespaces[i] = namespace
+			return nil
+		}
+	}
+	g.spec.Linux.Namespaces = append(g.spec.Linux.Namespaces, namespace)
+	return nil
+}
+
+// RemoveLinuxNamespace removes a namespace from g.spec.Linux.Namespaces.
+func (g *Generator) RemoveLinuxNamespace(ns string) error {
+	namespace, err := mapStrToNamespace(ns, "")
+	if err != nil {
+		return err
+	}
+
+	if g.spec == nil || g.spec.Linux == nil {
+		return nil
+	}
+	for i, ns := range g.spec.Linux.Namespaces {
+		if ns.Type == namespace.Type {
+			g.spec.Linux.Namespaces = append(g.spec.Linux.Namespaces[:i], g.spec.Linux.Namespaces[i+1:]...)
+			return nil
+		}
+	}
+	return nil
+}
+
+// strPtr returns the pointer pointing to the string s.
+func strPtr(s string) *string { return &s }
+
+// SetSyscallAction adds rules for syscalls with the specified action
+func (g *Generator) SetSyscallAction(arguments seccomp.SyscallOpts) error {
+	g.initSpecLinuxSeccomp()
+	return seccomp.ParseSyscallFlag(arguments, g.spec.Linux.Seccomp)
+}
+
+// SetDefaultSeccompAction sets the default action for all syscalls not defined
+// and then removes any syscall rules with this action already specified.
+func (g *Generator) SetDefaultSeccompAction(action string) error {
+	g.initSpecLinuxSeccomp()
+	return seccomp.ParseDefaultAction(action, g.spec.Linux.Seccomp)
+}
+
+// SetDefaultSeccompActionForce only sets the default action for all syscalls not defined
+func (g *Generator) SetDefaultSeccompActionForce(action string) error {
+	g.initSpecLinuxSeccomp()
+	return seccomp.ParseDefaultActionForce(action, g.spec.Linux.Seccomp)
+}
+
+// SetSeccompArchitecture sets the supported seccomp architectures
+func (g *Generator) SetSeccompArchitecture(architecture string) error {
+	g.initSpecLinuxSeccomp()
+	return seccomp.ParseArchitectureFlag(architecture, g.spec.Linux.Seccomp)
+}
+
+// RemoveSeccompRule removes rules for any specified syscalls
+func (g *Generator) RemoveSeccompRule(arguments string) error {
+	g.initSpecLinuxSeccomp()
+	return seccomp.RemoveAction(arguments, g.spec.Linux.Seccomp)
+}
+
+// RemoveAllSeccompRules removes all syscall rules
+func (g *Generator) RemoveAllSeccompRules() error {
+	g.initSpecLinuxSeccomp()
+	return seccomp.RemoveAllSeccompRules(g.spec.Linux.Seccomp)
+}
+
+// AddLinuxMaskedPaths adds masked paths into g.spec.Linux.MaskedPaths.
+func (g *Generator) AddLinuxMaskedPaths(path string) {
+	g.initSpecLinux()
+	g.spec.Linux.MaskedPaths = append(g.spec.Linux.MaskedPaths, path)
+}
+
+// AddLinuxReadonlyPaths adds readonly paths into g.spec.Linux.MaskedPaths.
+func (g *Generator) AddLinuxReadonlyPaths(path string) {
+	g.initSpecLinux()
+	g.spec.Linux.ReadonlyPaths = append(g.spec.Linux.ReadonlyPaths, path)
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/consts.go

@@ -0,0 +1,12 @@
+package seccomp
+
+const (
+	seccompOverwrite = "overwrite"
+	seccompAppend    = "append"
+	nothing          = "nothing"
+	kill             = "kill"
+	trap             = "trap"
+	trace            = "trace"
+	allow            = "allow"
+	errno            = "errno"
+)

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_action.go

@@ -0,0 +1,127 @@
+package seccomp
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// SyscallOpts contain options for parsing syscall rules
+type SyscallOpts struct {
+	Action   string
+	Syscall  string
+	Index    string
+	Value    string
+	ValueTwo string
+	Operator string
+}
+
+// ParseSyscallFlag takes a SyscallOpts struct and the seccomp configuration
+// and sets the new syscall rule accordingly
+func ParseSyscallFlag(args SyscallOpts, config *rspec.Seccomp) error {
+	var arguments []string
+	if args.Index != "" && args.Value != "" && args.ValueTwo != "" && args.Operator != "" {
+		arguments = []string{args.Action, args.Syscall, args.Index, args.Value,
+			args.ValueTwo, args.Operator}
+	} else {
+		arguments = []string{args.Action, args.Syscall}
+	}
+
+	action, _ := parseAction(arguments[0])
+	if action == config.DefaultAction {
+		return fmt.Errorf("default action already set as %s", action)
+	}
+
+	var newSyscall rspec.Syscall
+	numOfArgs := len(arguments)
+	if numOfArgs == 6 || numOfArgs == 2 {
+		argStruct, err := parseArguments(arguments[1:])
+		if err != nil {
+			return err
+		}
+		newSyscall = newSyscallStruct(arguments[1], action, argStruct)
+	} else {
+		return fmt.Errorf("incorrect number of arguments to ParseSyscall: %d", numOfArgs)
+	}
+
+	descison, err := decideCourseOfAction(&newSyscall, config.Syscalls)
+	if err != nil {
+		return err
+	}
+	delimDescison := strings.Split(descison, ":")
+
+	if delimDescison[0] == seccompAppend {
+		config.Syscalls = append(config.Syscalls, newSyscall)
+	}
+
+	if delimDescison[0] == seccompOverwrite {
+		indexForOverwrite, err := strconv.ParseInt(delimDescison[1], 10, 32)
+		if err != nil {
+			return err
+		}
+		config.Syscalls[indexForOverwrite] = newSyscall
+	}
+
+	return nil
+}
+
+var actions = map[string]rspec.Action{
+	"allow": rspec.ActAllow,
+	"errno": rspec.ActErrno,
+	"kill":  rspec.ActKill,
+	"trace": rspec.ActTrace,
+	"trap":  rspec.ActTrap,
+}
+
+// Take passed action, return the SCMP_ACT_<ACTION> version of it
+func parseAction(action string) (rspec.Action, error) {
+	a, ok := actions[action]
+	if !ok {
+		return "", fmt.Errorf("unrecognized action: %s", action)
+	}
+	return a, nil
+}
+
+// ParseDefaultAction sets the default action of the seccomp configuration
+// and then removes any rules that were already specified with this action
+func ParseDefaultAction(action string, config *rspec.Seccomp) error {
+	if action == "" {
+		return nil
+	}
+
+	defaultAction, err := parseAction(action)
+	if err != nil {
+		return err
+	}
+	config.DefaultAction = defaultAction
+	err = RemoveAllMatchingRules(config, action)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// ParseDefaultActionForce simply sets the default action of the seccomp configuration
+func ParseDefaultActionForce(action string, config *rspec.Seccomp) error {
+	if action == "" {
+		return nil
+	}
+
+	defaultAction, err := parseAction(action)
+	if err != nil {
+		return err
+	}
+	config.DefaultAction = defaultAction
+	return nil
+}
+
+func newSyscallStruct(name string, action rspec.Action, args []rspec.Arg) rspec.Syscall {
+	syscallStruct := rspec.Syscall{
+		Name:   name,
+		Action: action,
+		Args:   args,
+	}
+	return syscallStruct
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_architecture.go

@@ -0,0 +1,53 @@
+package seccomp
+
+import (
+	"fmt"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// ParseArchitectureFlag takes the raw string passed with the --arch flag, parses it
+// and updates the Seccomp config accordingly
+func ParseArchitectureFlag(architectureArg string, config *rspec.Seccomp) error {
+	correctedArch, err := parseArch(architectureArg)
+	if err != nil {
+		return err
+	}
+
+	shouldAppend := true
+	for _, alreadySpecified := range config.Architectures {
+		if correctedArch == alreadySpecified {
+			shouldAppend = false
+		}
+	}
+	if shouldAppend {
+		config.Architectures = append(config.Architectures, correctedArch)
+	}
+	return nil
+}
+
+func parseArch(arch string) (rspec.Arch, error) {
+	arches := map[string]rspec.Arch{
+		"x86":         rspec.ArchX86,
+		"amd64":       rspec.ArchX86_64,
+		"x32":         rspec.ArchX32,
+		"arm":         rspec.ArchARM,
+		"arm64":       rspec.ArchAARCH64,
+		"mips":        rspec.ArchMIPS,
+		"mips64":      rspec.ArchMIPS64,
+		"mips64n32":   rspec.ArchMIPS64N32,
+		"mipsel":      rspec.ArchMIPSEL,
+		"mipsel64":    rspec.ArchMIPSEL64,
+		"mipsel64n32": rspec.ArchMIPSEL64N32,
+		"ppc":         rspec.ArchPPC,
+		"ppc64":       rspec.ArchPPC64,
+		"ppc64le":     rspec.ArchPPC64LE,
+		"s390":        rspec.ArchS390,
+		"s390x":       rspec.ArchS390X,
+	}
+	a, ok := arches[arch]
+	if !ok {
+		return "", fmt.Errorf("unrecognized architecture: %s", arch)
+	}
+	return a, nil
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_arguments.go

@@ -0,0 +1,73 @@
+package seccomp
+
+import (
+	"fmt"
+	"strconv"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// parseArguments takes a list of arguments (delimArgs). It parses and fills out
+// the argument information and returns a slice of arg structs
+func parseArguments(delimArgs []string) ([]rspec.Arg, error) {
+	nilArgSlice := []rspec.Arg{}
+	numberOfArgs := len(delimArgs)
+
+	// No parameters passed with syscall
+	if numberOfArgs == 1 {
+		return nilArgSlice, nil
+	}
+
+	// Correct number of parameters passed with syscall
+	if numberOfArgs == 5 {
+		syscallIndex, err := strconv.ParseUint(delimArgs[1], 10, 0)
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		syscallValue, err := strconv.ParseUint(delimArgs[2], 10, 64)
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		syscallValueTwo, err := strconv.ParseUint(delimArgs[3], 10, 64)
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		syscallOp, err := parseOperator(delimArgs[4])
+		if err != nil {
+			return nilArgSlice, err
+		}
+
+		argStruct := rspec.Arg{
+			Index:    uint(syscallIndex),
+			Value:    syscallValue,
+			ValueTwo: syscallValueTwo,
+			Op:       syscallOp,
+		}
+
+		argSlice := []rspec.Arg{}
+		argSlice = append(argSlice, argStruct)
+		return argSlice, nil
+	}
+
+	return nilArgSlice, fmt.Errorf("incorrect number of arguments passed with syscall: %d", numberOfArgs)
+}
+
+func parseOperator(operator string) (rspec.Operator, error) {
+	operators := map[string]rspec.Operator{
+		"NE": rspec.OpNotEqual,
+		"LT": rspec.OpLessThan,
+		"LE": rspec.OpLessEqual,
+		"EQ": rspec.OpEqualTo,
+		"GE": rspec.OpGreaterEqual,
+		"GT": rspec.OpGreaterThan,
+		"ME": rspec.OpMaskedEqual,
+	}
+	o, ok := operators[operator]
+	if !ok {
+		return "", fmt.Errorf("unrecognized operator: %s", operator)
+	}
+	return o, nil
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/parse_remove.go

@@ -0,0 +1,68 @@
+package seccomp
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// RemoveAction takes the argument string that was passed with the --remove flag,
+// parses it, and updates the Seccomp config accordingly
+func RemoveAction(arguments string, config *rspec.Seccomp) error {
+	if config == nil {
+		return fmt.Errorf("Cannot remove action from nil Seccomp pointer")
+	}
+
+	var syscallsToRemove []string
+	if strings.Contains(arguments, ",") {
+		syscallsToRemove = strings.Split(arguments, ",")
+	} else {
+		syscallsToRemove = append(syscallsToRemove, arguments)
+	}
+
+	for _, syscall := range syscallsToRemove {
+		for counter, syscallStruct := range config.Syscalls {
+			if syscallStruct.Name == syscall {
+				config.Syscalls = append(config.Syscalls[:counter], config.Syscalls[counter+1:]...)
+			}
+		}
+	}
+	return nil
+}
+
+// RemoveAllSeccompRules removes all seccomp syscall rules
+func RemoveAllSeccompRules(config *rspec.Seccomp) error {
+	if config == nil {
+		return fmt.Errorf("Cannot remove action from nil Seccomp pointer")
+	}
+	newSyscallSlice := []rspec.Syscall{}
+	config.Syscalls = newSyscallSlice
+	return nil
+}
+
+// RemoveAllMatchingRules will remove any syscall rules that match the specified action
+func RemoveAllMatchingRules(config *rspec.Seccomp, action string) error {
+	if config == nil {
+		return fmt.Errorf("Cannot remove action from nil Seccomp pointer")
+	}
+
+	seccompAction, err := parseAction(action)
+	if err != nil {
+		return err
+	}
+
+	syscallsToRemove := []string{}
+	for _, syscall := range config.Syscalls {
+		if reflect.DeepEqual(syscall.Action, seccompAction) {
+			syscallsToRemove = append(syscallsToRemove, syscall.Name)
+		}
+	}
+
+	for i := range syscallsToRemove {
+		RemoveAction(syscallsToRemove[i], config)
+	}
+
+	return nil
+}

vendor/github.com/opencontainers/runtime-tools/generate/seccomp/syscall_compare.go

@@ -0,0 +1,140 @@
+package seccomp
+
+import (
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+// Determine if a new syscall rule should be appended, overwrite an existing rule
+// or if no action should be taken at all
+func decideCourseOfAction(newSyscall *rspec.Syscall, syscalls []rspec.Syscall) (string, error) {
+	ruleForSyscallAlreadyExists := false
+
+	var sliceOfDeterminedActions []string
+	for i, syscall := range syscalls {
+		if syscall.Name == newSyscall.Name {
+			ruleForSyscallAlreadyExists = true
+
+			if identical(newSyscall, &syscall) {
+				sliceOfDeterminedActions = append(sliceOfDeterminedActions, nothing)
+			}
+
+			if sameAction(newSyscall, &syscall) {
+				if bothHaveArgs(newSyscall, &syscall) {
+					sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+				}
+				if onlyOneHasArgs(newSyscall, &syscall) {
+					if firstParamOnlyHasArgs(newSyscall, &syscall) {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, "overwrite:"+strconv.Itoa(i))
+					} else {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, nothing)
+					}
+				}
+			}
+
+			if !sameAction(newSyscall, &syscall) {
+				if bothHaveArgs(newSyscall, &syscall) {
+					if sameArgs(newSyscall, &syscall) {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, "overwrite:"+strconv.Itoa(i))
+					}
+					if !sameArgs(newSyscall, &syscall) {
+						sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+					}
+				}
+				if onlyOneHasArgs(newSyscall, &syscall) {
+					sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+				}
+				if neitherHasArgs(newSyscall, &syscall) {
+					sliceOfDeterminedActions = append(sliceOfDeterminedActions, "overwrite:"+strconv.Itoa(i))
+				}
+			}
+		}
+	}
+
+	if !ruleForSyscallAlreadyExists {
+		sliceOfDeterminedActions = append(sliceOfDeterminedActions, seccompAppend)
+	}
+
+	// Nothing has highest priority
+	for _, determinedAction := range sliceOfDeterminedActions {
+		if determinedAction == nothing {
+			return determinedAction, nil
+		}
+	}
+
+	// Overwrite has second highest priority
+	for _, determinedAction := range sliceOfDeterminedActions {
+		if strings.Contains(determinedAction, seccompOverwrite) {
+			return determinedAction, nil
+		}
+	}
+
+	// Append has the lowest priority
+	for _, determinedAction := range sliceOfDeterminedActions {
+		if determinedAction == seccompAppend {
+			return determinedAction, nil
+		}
+	}
+
+	return "", fmt.Errorf("Trouble determining action: %s", sliceOfDeterminedActions)
+}
+
+func hasArguments(config *rspec.Syscall) bool {
+	nilSyscall := new(rspec.Syscall)
+	return !sameArgs(nilSyscall, config)
+}
+
+func identical(config1, config2 *rspec.Syscall) bool {
+	return reflect.DeepEqual(config1, config2)
+}
+
+func identicalExceptAction(config1, config2 *rspec.Syscall) bool {
+	samename := sameName(config1, config2)
+	sameAction := sameAction(config1, config2)
+	sameArgs := sameArgs(config1, config2)
+
+	return samename && !sameAction && sameArgs
+}
+
+func identicalExceptArgs(config1, config2 *rspec.Syscall) bool {
+	samename := sameName(config1, config2)
+	sameAction := sameAction(config1, config2)
+	sameArgs := sameArgs(config1, config2)
+
+	return samename && sameAction && !sameArgs
+}
+
+func sameName(config1, config2 *rspec.Syscall) bool {
+	return config1.Name == config2.Name
+}
+
+func sameAction(config1, config2 *rspec.Syscall) bool {
+	return config1.Action == config2.Action
+}
+
+func sameArgs(config1, config2 *rspec.Syscall) bool {
+	return reflect.DeepEqual(config1.Args, config2.Args)
+}
+
+func bothHaveArgs(config1, config2 *rspec.Syscall) bool {
+	return hasArguments(config1) && hasArguments(config2)
+}
+
+func onlyOneHasArgs(config1, config2 *rspec.Syscall) bool {
+	conf1 := hasArguments(config1)
+	conf2 := hasArguments(config2)
+
+	return (conf1 && !conf2) || (!conf1 && conf2)
+}
+
+func neitherHasArgs(config1, config2 *rspec.Syscall) bool {
+	return !hasArguments(config1) && !hasArguments(config2)
+}
+
+func firstParamOnlyHasArgs(config1, config2 *rspec.Syscall) bool {
+	return !hasArguments(config1) && hasArguments(config2)
+}

vendor/github.com/opencontainers/runtime-tools/generate/spec.go

@@ -0,0 +1,74 @@
+package generate
+
+import (
+	rspec "github.com/opencontainers/runtime-spec/specs-go"
+)
+
+func (g *Generator) initSpec() {
+	if g.spec == nil {
+		g.spec = &rspec.Spec{}
+	}
+}
+
+func (g *Generator) initSpecAnnotations() {
+	g.initSpec()
+	if g.spec.Annotations == nil {
+		g.spec.Annotations = make(map[string]string)
+	}
+}
+
+func (g *Generator) initSpecLinux() {
+	g.initSpec()
+	if g.spec.Linux == nil {
+		g.spec.Linux = &rspec.Linux{}
+	}
+}
+
+func (g *Generator) initSpecLinuxSysctl() {
+	g.initSpecLinux()
+	if g.spec.Linux.Sysctl == nil {
+		g.spec.Linux.Sysctl = make(map[string]string)
+	}
+}
+
+func (g *Generator) initSpecLinuxSeccomp() {
+	g.initSpecLinux()
+	if g.spec.Linux.Seccomp == nil {
+		g.spec.Linux.Seccomp = &rspec.Seccomp{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResources() {
+	g.initSpecLinux()
+	if g.spec.Linux.Resources == nil {
+		g.spec.Linux.Resources = &rspec.Resources{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesCPU() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.CPU == nil {
+		g.spec.Linux.Resources.CPU = &rspec.CPU{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesMemory() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.Memory == nil {
+		g.spec.Linux.Resources.Memory = &rspec.Memory{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesNetwork() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.Network == nil {
+		g.spec.Linux.Resources.Network = &rspec.Network{}
+	}
+}
+
+func (g *Generator) initSpecLinuxResourcesPids() {
+	g.initSpecLinuxResources()
+	if g.spec.Linux.Resources.Pids == nil {
+		g.spec.Linux.Resources.Pids = &rspec.Pids{}
+	}
+}