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Update containerd to 06b9cb35161009dcb7123345749fef02f7cea8e0

This also update:
 - runc to 3f2f8b84a77f73d38244dd690525642a72156c64
 - runtime-specs to v1.0.0

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
This commit is contained in:
Kenfe-Mickael Laventure 2017-08-01 08:51:24 -07:00
parent 361a473121
commit 45d85c9913
No known key found for this signature in database
GPG key ID: 40CF16616B361216
47 changed files with 718 additions and 574 deletions

View file

@ -39,7 +39,9 @@ const (
)
func getMemoryResources(config containertypes.Resources) specs.CappedMemory {
memory := specs.CappedMemory{}
memory := specs.CappedMemory{
DisableOOMKiller: config.OomKillDisable,
}
if config.Memory > 0 {
memory.Physical = strconv.FormatInt(config.Memory, 10)

View file

@ -68,18 +68,15 @@ func getMemoryResources(config containertypes.Resources) *specs.LinuxMemory {
memory := specs.LinuxMemory{}
if config.Memory > 0 {
limit := uint64(config.Memory)
memory.Limit = &limit
memory.Limit = &config.Memory
}
if config.MemoryReservation > 0 {
reservation := uint64(config.MemoryReservation)
memory.Reservation = &reservation
memory.Reservation = &config.MemoryReservation
}
if config.MemorySwap > 0 {
swap := uint64(config.MemorySwap)
memory.Swap = &swap
memory.Swap = &config.MemorySwap
}
if config.MemorySwappiness != nil {
@ -88,8 +85,7 @@ func getMemoryResources(config containertypes.Resources) *specs.LinuxMemory {
}
if config.KernelMemory != 0 {
kernelMemory := uint64(config.KernelMemory)
memory.Kernel = &kernelMemory
memory.Kernel = &config.KernelMemory
}
return &memory

View file

@ -73,7 +73,6 @@ func setResources(s *specs.Spec, r containertypes.Resources) error {
ThrottleReadIOPSDevice: readIOpsDevice,
ThrottleWriteIOPSDevice: writeIOpsDevice,
},
DisableOOMKiller: r.OomKillDisable,
Pids: &specs.LinuxPids{
Limit: r.PidsLimit,
},
@ -157,14 +156,14 @@ func setDevices(s *specs.Spec, c *container.Container) error {
}
func setRlimits(daemon *Daemon, s *specs.Spec, c *container.Container) error {
var rlimits []specs.LinuxRlimit
var rlimits []specs.POSIXRlimit
// We want to leave the original HostConfig alone so make a copy here
hostConfig := *c.HostConfig
// Merge with the daemon defaults
daemon.mergeUlimits(&hostConfig)
for _, ul := range hostConfig.Ulimits {
rlimits = append(rlimits, specs.LinuxRlimit{
rlimits = append(rlimits, specs.POSIXRlimit{
Type: "RLIMIT_" + strings.ToUpper(ul.Name),
Soft: uint64(ul.Soft),
Hard: uint64(ul.Hard),
@ -631,7 +630,7 @@ func (daemon *Daemon) populateCommonSpec(s *specs.Spec, c *container.Container)
if err != nil {
return err
}
s.Root = specs.Root{
s.Root = &specs.Root{
Path: c.BaseFS,
Readonly: c.HostConfig.ReadonlyRootfs,
}
@ -708,7 +707,6 @@ func (daemon *Daemon) createSpec(c *container.Container) (*specs.Spec, error) {
if err := setResources(&s, c.HostConfig.Resources); err != nil {
return nil, fmt.Errorf("linux runtime spec resources: %v", err)
}
s.Linux.Resources.OOMScoreAdj = &c.HostConfig.OomScoreAdj
s.Linux.Sysctl = c.HostConfig.Sysctls
p := s.Linux.CgroupsPath
@ -832,6 +830,7 @@ func (daemon *Daemon) createSpec(c *container.Container) (*specs.Spec, error) {
}
s.Process.SelinuxLabel = c.GetProcessLabel()
s.Process.NoNewPrivileges = c.NoNewPrivileges
s.Process.OOMScoreAdj = &c.HostConfig.OomScoreAdj
s.Linux.MountLabel = c.MountLabel
return (*specs.Spec)(&s), nil

View file

@ -3,8 +3,8 @@
TOMLV_COMMIT=9baf8a8a9f2ed20a8e54160840c492f937eeaf9a
# When updating RUNC_COMMIT, also update runc in vendor.conf accordingly
RUNC_COMMIT=2d41c047c83e09a6d61d464906feb2a2f3c52aa4
CONTAINERD_COMMIT=3addd840653146c90a254301d6c3a663c7fd6429
RUNC_COMMIT=3f2f8b84a77f73d38244dd690525642a72156c64
CONTAINERD_COMMIT=06b9cb35161009dcb7123345749fef02f7cea8e0
TINI_COMMIT=949e6facb77383876aeff8a6944dde66b3089574
LIBNETWORK_COMMIT=7b2b1feb1de4817d522cc372af149ff48d25028e
VNDR_COMMIT=9909bb2b8a0b7ea464527b376dc50389c90df587

View file

@ -20,7 +20,7 @@ RUNC_BUILDTAGS="${RUNC_BUILDTAGS:-"seccomp apparmor selinux"}"
install_runc() {
echo "Install runc version $RUNC_COMMIT"
git clone https://github.com/docker/runc.git "$GOPATH/src/github.com/opencontainers/runc"
git clone https://github.com/opencontainers/runc.git "$GOPATH/src/github.com/opencontainers/runc"
cd "$GOPATH/src/github.com/opencontainers/runc"
git checkout -q "$RUNC_COMMIT"
make BUILDTAGS="$RUNC_BUILDTAGS" $1

View file

@ -71,7 +71,7 @@ VERSION=$(< ./VERSION)
! BUILDTIME=$(date -u -d "@${SOURCE_DATE_EPOCH:-$(date +%s)}" --rfc-3339 ns 2> /dev/null | sed -e 's/ /T/')
if [ "$DOCKER_GITCOMMIT" ]; then
GITCOMMIT="$DOCKER_GITCOMMIT"
elif command -v git &> /dev/null && [ -d .git ] && git rev-parse &> /dev/null; then
elif command -v git &> /dev/null && [ -e .git ] && git rev-parse &> /dev/null; then
GITCOMMIT=$(git rev-parse --short HEAD)
if [ -n "$(git status --porcelain --untracked-files=no)" ]; then
GITCOMMIT="$GITCOMMIT-unsupported"

View file

@ -21,7 +21,7 @@ type Process struct {
// Capabilities are linux capabilities that are kept for the container.
Capabilities []string `json:"capabilities,omitempty"`
// Rlimits specifies rlimit options to apply to the process.
Rlimits []specs.LinuxRlimit `json:"rlimits,omitempty"`
Rlimits []specs.POSIXRlimit `json:"rlimits,omitempty"`
// ApparmorProfile specifies the apparmor profile for the container.
ApparmorProfile *string `json:"apparmorProfile,omitempty"`
// SelinuxLabel specifies the selinux context that the container process is run as.

View file

@ -43,7 +43,7 @@ func systemPid(ctr *containerd.Container) uint32 {
return pid
}
func convertRlimits(sr []specs.LinuxRlimit) (cr []*containerd.Rlimit) {
func convertRlimits(sr []specs.POSIXRlimit) (cr []*containerd.Rlimit) {
for _, r := range sr {
cr = append(cr, &containerd.Rlimit{
Type: r.Type,

View file

@ -50,10 +50,6 @@ func DefaultOSSpec(osName string) specs.Spec {
func DefaultWindowsSpec() specs.Spec {
return specs.Spec{
Version: specs.Version,
Platform: specs.Platform{
OS: runtime.GOOS,
Arch: runtime.GOARCH,
},
Windows: &specs.Windows{},
}
}
@ -62,10 +58,6 @@ func DefaultWindowsSpec() specs.Spec {
func DefaultSolarisSpec() specs.Spec {
s := specs.Spec{
Version: "0.6.0",
Platform: specs.Platform{
OS: "SunOS",
Arch: runtime.GOARCH,
},
}
s.Solaris = &specs.Solaris{}
return s
@ -75,10 +67,7 @@ func DefaultSolarisSpec() specs.Spec {
func DefaultLinuxSpec() specs.Spec {
s := specs.Spec{
Version: specs.Version,
Platform: specs.Platform{
OS: "linux",
Arch: runtime.GOARCH,
},
Process: &specs.Process{},
}
s.Mounts = []specs.Mount{
{

View file

@ -18,7 +18,7 @@ import (
// InitSpec creates an OCI spec from the plugin's config.
func (p *Plugin) InitSpec(execRoot string) (*specs.Spec, error) {
s := oci.DefaultSpec()
s.Root = specs.Root{
s.Root = &specs.Root{
Path: p.Rootfs,
Readonly: false, // TODO: all plugins should be readonly? settable in config?
}

View file

@ -62,9 +62,9 @@ github.com/pborman/uuid v1.0
google.golang.org/grpc v1.3.0
# When updating, also update RUNC_COMMIT in hack/dockerfile/binaries-commits accordingly
github.com/opencontainers/runc e9325d442f5979c4f79bfa9e09bdf7abb74ba03b https://github.com/dmcgowan/runc.git
github.com/opencontainers/runc 3f2f8b84a77f73d38244dd690525642a72156c64
github.com/opencontainers/image-spec 372ad780f63454fbbbbcc7cf80e5b90245c13e13
github.com/opencontainers/runtime-spec d42f1eb741e6361e858d83fc75aa6893b66292c4 # specs
github.com/opencontainers/runtime-spec v1.0.0
github.com/seccomp/libseccomp-golang 32f571b70023028bd57d9288c20efbcb237f3ce0
@ -101,7 +101,7 @@ github.com/googleapis/gax-go da06d194a00e19ce00d9011a13931c3f6f6887c7
google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
# containerd
github.com/containerd/containerd fc10004571bb9b26695ccbf2dd4a83213f60b93e https://github.com/dmcgowan/containerd.git
github.com/containerd/containerd 06b9cb35161009dcb7123345749fef02f7cea8e0
github.com/tonistiigi/fifo 1405643975692217d6720f8b54aeee1bf2cd5cf4
github.com/stevvooe/continuity cd7a8e21e2b6f84799f5dd4b65faf49c8d3ee02d
github.com/tonistiigi/fsutil 0ac4c11b053b9c5c7c47558f81f96c7100ce50fb

View file

@ -1,6 +1,5 @@
// Code generated by protoc-gen-go.
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: api.proto
// DO NOT EDIT!
/*
Package types is a generated protocol buffer package.
@ -1052,6 +1051,8 @@ type UpdateResource struct {
BlkioThrottleReadIopsDevice []*ThrottleDevice `protobuf:"bytes,16,rep,name=blkioThrottleReadIopsDevice" json:"blkioThrottleReadIopsDevice,omitempty"`
BlkioThrottleWriteIopsDevice []*ThrottleDevice `protobuf:"bytes,17,rep,name=blkioThrottleWriteIopsDevice" json:"blkioThrottleWriteIopsDevice,omitempty"`
PidsLimit uint64 `protobuf:"varint,18,opt,name=pidsLimit" json:"pidsLimit,omitempty"`
CpuRealtimePeriod uint64 `protobuf:"varint,19,opt,name=cpuRealtimePeriod" json:"cpuRealtimePeriod,omitempty"`
CpuRealtimeRuntime int64 `protobuf:"varint,20,opt,name=cpuRealtimeRuntime" json:"cpuRealtimeRuntime,omitempty"`
}
func (m *UpdateResource) Reset() { *m = UpdateResource{} }
@ -1185,6 +1186,20 @@ func (m *UpdateResource) GetPidsLimit() uint64 {
return 0
}
func (m *UpdateResource) GetCpuRealtimePeriod() uint64 {
if m != nil {
return m.CpuRealtimePeriod
}
return 0
}
func (m *UpdateResource) GetCpuRealtimeRuntime() int64 {
if m != nil {
return m.CpuRealtimeRuntime
}
return 0
}
type BlockIODevice struct {
Major int64 `protobuf:"varint,1,opt,name=major" json:"major,omitempty"`
Minor int64 `protobuf:"varint,2,opt,name=minor" json:"minor,omitempty"`
@ -2415,170 +2430,172 @@ var _API_serviceDesc = grpc.ServiceDesc{
func init() { proto.RegisterFile("api.proto", fileDescriptor0) }
var fileDescriptor0 = []byte{
// 2632 bytes of a gzipped FileDescriptorProto
// 2666 bytes of a gzipped FileDescriptorProto
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0xad, 0xf3, 0x85, 0x4f, 0x45, 0x55, 0x98, 0x5e, 0xe7, 0x94, 0xf0, 0x71, 0x65, 0x9d, 0xeb, 0xaf,
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0xff, 0xed, 0x32, 0xf3, 0xaf, 0x3a, 0xb4, 0x0f, 0xc7, 0x9c, 0x65, 0x49, 0xa5, 0x6a, 0xeb, 0x1c,
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0x54, 0xba, 0x09, 0xc3, 0x79, 0x99, 0x75, 0x47, 0xd0, 0x9d, 0x68, 0xdf, 0x18, 0x2e, 0x1d, 0x80,
0xef, 0xe4, 0xc6, 0x95, 0x6b, 0xd8, 0xb7, 0x7d, 0xa8, 0x5d, 0xdd, 0x99, 0xd8, 0x6e, 0x7d, 0x1f,
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0x3a, 0xff, 0x73, 0xbe, 0xd8, 0xca, 0x95, 0xef, 0x0a, 0x4a, 0xec, 0xfc, 0x4f, 0xff, 0x42, 0xec,
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0xff, 0xff, 0x8c, 0xbd, 0xc2, 0x0b, 0x2e, 0x20, 0x00, 0x00,
}

View file

@ -211,6 +211,8 @@ message UpdateResource {
repeated ThrottleDevice blkioThrottleReadIopsDevice = 16;
repeated ThrottleDevice blkioThrottleWriteIopsDevice = 17;
uint64 pidsLimit = 18;
uint64 cpuRealtimePeriod = 19;
int64 cpuRealtimeRuntime = 20;
}
message BlockIODevice {

View file

@ -434,7 +434,7 @@ func (c *container) Start(ctx context.Context, checkpointPath string, s Stdio) (
c: c,
stdio: s,
spec: spec,
processSpec: specs.ProcessSpec(spec.Process),
processSpec: specs.ProcessSpec(*spec.Process),
}
p, err := newProcess(config)
if err != nil {
@ -544,7 +544,6 @@ func (c *container) createCmd(ctx context.Context, pid string, cmd *exec.Cmd, p
case err := <-ch:
return err
}
return nil
}
func hostIDFromMap(id uint32, mp []ocs.LinuxIDMapping) int {

View file

@ -112,18 +112,20 @@ func i64Ptr(i int64) *int64 { return &i }
func (c *container) UpdateResources(r *Resource) error {
sr := ocs.LinuxResources{
Memory: &ocs.LinuxMemory{
Limit: u64Ptr(uint64(r.Memory)),
Reservation: u64Ptr(uint64(r.MemoryReservation)),
Swap: u64Ptr(uint64(r.MemorySwap)),
Kernel: u64Ptr(uint64(r.KernelMemory)),
KernelTCP: u64Ptr(uint64(r.KernelTCPMemory)),
Limit: i64Ptr(r.Memory),
Reservation: i64Ptr(r.MemoryReservation),
Swap: i64Ptr(r.MemorySwap),
Kernel: i64Ptr(r.KernelMemory),
KernelTCP: i64Ptr(r.KernelTCPMemory),
},
CPU: &ocs.LinuxCPU{
Shares: u64Ptr(uint64(r.CPUShares)),
Quota: i64Ptr(int64(r.CPUQuota)),
Period: u64Ptr(uint64(r.CPUPeriod)),
Cpus: r.CpusetCpus,
Mems: r.CpusetMems,
Shares: u64Ptr(uint64(r.CPUShares)),
Quota: i64Ptr(int64(r.CPUQuota)),
Period: u64Ptr(uint64(r.CPUPeriod)),
Cpus: r.CpusetCpus,
Mems: r.CpusetMems,
RealtimePeriod: u64Ptr(uint64(r.CPURealtimePeriod)),
RealtimeRuntime: i64Ptr(int64(r.CPURealtimdRuntime)),
},
BlockIO: &ocs.LinuxBlockIO{
Weight: &r.BlkioWeight,

View file

@ -233,7 +233,7 @@ func (p *process) updateExitStatusFile(status uint32) (uint32, error) {
p.stateLock.Lock()
p.state = Stopped
p.stateLock.Unlock()
err := ioutil.WriteFile(filepath.Join(p.root, ExitStatusFile), []byte(fmt.Sprintf("%u", status)), 0644)
err := ioutil.WriteFile(filepath.Join(p.root, ExitStatusFile), []byte(fmt.Sprintf("%d", status)), 0644)
return status, err
}
@ -262,10 +262,27 @@ func (p *process) handleSigkilledShim(rst uint32, rerr error) (uint32, error) {
}
if ppid == "1" {
logrus.Warnf("containerd: %s:%s shim died, killing associated process", p.container.id, p.id)
// Before sending SIGKILL to container, we need to make sure
// the container is not in Paused state. If the container is
// Paused, the container will not response to any signal
// we should Resume it after sending SIGKILL
var (
s State
err1 error
)
if p.container != nil {
s, err1 = p.container.Status()
}
unix.Kill(p.pid, syscall.SIGKILL)
if err != nil && err != syscall.ESRCH {
return UnknownStatus, fmt.Errorf("containerd: unable to SIGKILL %s:%s (pid %v): %v", p.container.id, p.id, p.pid, err)
}
if p.container != nil {
if err1 == nil && s == Paused {
p.container.Resume()
}
}
// wait for the process to die
for {
@ -283,14 +300,23 @@ func (p *process) handleSigkilledShim(rst uint32, rerr error) (uint32, error) {
return rst, rerr
}
// Possible that the shim was SIGKILLED
e := unix.Kill(p.cmd.Process.Pid, 0)
if e != syscall.ESRCH {
return rst, rerr
// The shim was SIGKILLED
// We should get the container state first
// to make sure the container is not in
// Pause state, if it's Paused, we should resume it
// and it will exit immediately because shim will send sigkill to
// container when died.
s, err1 := p.container.Status()
if err1 == nil && s == Paused {
p.container.Resume()
}
// Ensure we got the shim ProcessState
<-p.cmdDoneCh
select {
case <-p.cmdDoneCh:
case <-time.After(2 * time.Minute):
return rst, fmt.Errorf("could not get the shim ProcessState within two minutes")
}
shimStatus := p.cmd.ProcessState.Sys().(syscall.WaitStatus)
if shimStatus.Signaled() && shimStatus.Signal() == syscall.SIGKILL {

View file

@ -84,18 +84,20 @@ type State string
// Resource regroups the various container limits that can be updated
type Resource struct {
CPUShares int64
BlkioWeight uint16
CPUPeriod int64
CPUQuota int64
CpusetCpus string
CpusetMems string
KernelMemory int64
KernelTCPMemory int64
Memory int64
MemoryReservation int64
MemorySwap int64
PidsLimit int64
CPUShares int64
BlkioWeight uint16
CPUPeriod int64
CPUQuota int64
CpusetCpus string
CpusetMems string
KernelMemory int64
KernelTCPMemory int64
Memory int64
MemoryReservation int64
MemorySwap int64
PidsLimit int64
CPURealtimePeriod uint64
CPURealtimdRuntime int64
}
// Possible container states

View file

@ -8,5 +8,5 @@ type (
// Spec aliases the platform oci spec
Spec oci.Spec
// Rlimit aliases the platform resource limit
Rlimit oci.LinuxRlimit
Rlimit oci.POSIXRlimit
)

33
vendor/github.com/containerd/containerd/vendor.conf generated vendored Executable file
View file

@ -0,0 +1,33 @@
github.com/sirupsen/logrus v1.0.1
github.com/cloudfoundry/gosigar 3ed7c74352dae6dc00bdc8c74045375352e3ec05
github.com/urfave/cli 8ba6f23b6e36d03666a14bd9421f5e3efcb59aca
github.com/coreos/go-systemd 7b2428fec40033549c68f54e26e89e7ca9a9ce31
github.com/cyberdelia/go-metrics-graphite 7e54b5c2aa6eaff4286c44129c3def899dff528c
github.com/docker/docker f577caff19d486d8d01443507d891cb1b0891cdc
github.com/docker/go-units 5d2041e26a699eaca682e2ea41c8f891e1060444
github.com/godbus/dbus e2cf28118e66a6a63db46cf6088a35d2054d3bb0
github.com/golang/glog 23def4e6c14b4da8ac2ed8007337bc5eb5007998
github.com/golang/protobuf 8ee79997227bf9b34611aee7946ae64735e6fd93
github.com/opencontainers/runc d40db12e72a40109dfcf28539f5ee0930d2f0277
github.com/opencontainers/runtime-spec v1.0.0
github.com/rcrowley/go-metrics eeba7bd0dd01ace6e690fa833b3f22aaec29af43
github.com/satori/go.uuid f9ab0dce87d815821e221626b772e3475a0d2749
github.com/syndtr/gocapability 2c00daeb6c3b45114c80ac44119e7b8801fdd852
github.com/vishvananda/netlink adb0f53af689dd38f1443eba79489feaacf0b22e
github.com/Azure/go-ansiterm 70b2c90b260171e829f1ebd7c17f600c11858dbe
golang.org/x/net 991d3e32f76f19ee6d9caadb3a22eae8d23315f7 https://github.com/golang/net.git
golang.org/x/sys 0e0164865330d5cf1c00247be08330bf96e2f87c https://github.com/golang/sys
google.golang.org/grpc v1.0.4 https://github.com/grpc/grpc-go.git
github.com/seccomp/libseccomp-golang 1b506fc7c24eec5a3693cdcbed40d9c226cfc6a1
github.com/tonistiigi/fifo b45391ebcd3d282404092c04a2b015b37df12383
github.com/pkg/errors 839d9e913e063e28dfd0e6c7b7512793e0a48be9
github.com/vdemeester/shakers 24d7f1d6a71aa5d9cbe7390e4afb66b7eef9e1b3
github.com/go-check/check a625211d932a2a643d0d17352095f03fb7774663 https://github.com/cpuguy83/check.git
github.com/containerd/console a3863895279f5104533fd999c1babf80faffd98c
github.com/containerd/go-runc 5fe4d8cb7fdc0fae5f5a7f4f1d65a565032401b2
# dependencies of docker/pkg/listeners
github.com/docker/go-connections 3ede32e2033de7505e6500d6c868c2b9ed9f169d
github.com/Microsoft/go-winio v0.3.2

View file

@ -145,11 +145,33 @@ Your process field in the `config.json` should look like this below with `"termi
"TERM=xterm"
],
"cwd": "/",
"capabilities": [
"CAP_AUDIT_WRITE",
"CAP_KILL",
"CAP_NET_BIND_SERVICE"
],
"capabilities": {
"bounding": [
"CAP_AUDIT_WRITE",
"CAP_KILL",
"CAP_NET_BIND_SERVICE"
],
"effective": [
"CAP_AUDIT_WRITE",
"CAP_KILL",
"CAP_NET_BIND_SERVICE"
],
"inheritable": [
"CAP_AUDIT_WRITE",
"CAP_KILL",
"CAP_NET_BIND_SERVICE"
],
"permitted": [
"CAP_AUDIT_WRITE",
"CAP_KILL",
"CAP_NET_BIND_SERVICE"
],
"ambient": [
"CAP_AUDIT_WRITE",
"CAP_KILL",
"CAP_NET_BIND_SERVICE"
]
},
"rlimits": [
{
"type": "RLIMIT_NOFILE",
@ -161,7 +183,7 @@ Your process field in the `config.json` should look like this below with `"termi
},
```
Now we can go though the lifecycle operations in your shell.
Now we can go through the lifecycle operations in your shell.
```bash

View file

@ -56,25 +56,91 @@ Once you have an instance of the factory created we can create a configuration
struct describing how the container is to be created. A sample would look similar to this:
```go
defaultMountFlags := syscall.MS_NOEXEC | syscall.MS_NOSUID | syscall.MS_NODEV
defaultMountFlags := unix.MS_NOEXEC | unix.MS_NOSUID | unix.MS_NODEV
config := &configs.Config{
Rootfs: "/your/path/to/rootfs",
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",
},
Capabilities: &configs.Capabilities{
Bounding: []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",
},
Effective: []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",
},
Inheritable: []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",
},
Permitted: []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",
},
Ambient: []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",
},
},
Namespaces: configs.Namespaces([]configs.Namespace{
{Type: configs.NEWNS},
{Type: configs.NEWUTS},
@ -112,14 +178,14 @@ config := &configs.Config{
Source: "tmpfs",
Destination: "/dev",
Device: "tmpfs",
Flags: syscall.MS_NOSUID | syscall.MS_STRICTATIME,
Flags: unix.MS_NOSUID | unix.MS_STRICTATIME,
Data: "mode=755",
},
{
Source: "devpts",
Destination: "/dev/pts",
Device: "devpts",
Flags: syscall.MS_NOSUID | syscall.MS_NOEXEC,
Flags: unix.MS_NOSUID | unix.MS_NOEXEC,
Data: "newinstance,ptmxmode=0666,mode=0620,gid=5",
},
{
@ -139,7 +205,7 @@ config := &configs.Config{
Source: "sysfs",
Destination: "/sys",
Device: "sysfs",
Flags: defaultMountFlags | syscall.MS_RDONLY,
Flags: defaultMountFlags | unix.MS_RDONLY,
},
},
UidMappings: []configs.IDMap{
@ -165,7 +231,7 @@ config := &configs.Config{
},
Rlimits: []configs.Rlimit{
{
Type: syscall.RLIMIT_NOFILE,
Type: unix.RLIMIT_NOFILE,
Hard: uint64(1025),
Soft: uint64(1025),
},

View file

@ -51,6 +51,8 @@ type MemoryStats struct {
KernelUsage MemoryData `json:"kernel_usage,omitempty"`
// usage of kernel TCP memory
KernelTCPUsage MemoryData `json:"kernel_tcp_usage,omitempty"`
// if true, memory usage is accounted for throughout a hierarchy of cgroups.
UseHierarchy bool `json:"use_hierarchy"`
Stats map[string]uint64 `json:"stats,omitempty"`
}

View file

@ -66,6 +66,21 @@ func isSubsystemAvailable(subsystem string) bool {
return avail
}
func GetClosestMountpointAncestor(dir, mountinfo string) string {
deepestMountPoint := ""
for _, mountInfoEntry := range strings.Split(mountinfo, "\n") {
mountInfoParts := strings.Fields(mountInfoEntry)
if len(mountInfoParts) < 5 {
continue
}
mountPoint := mountInfoParts[4]
if strings.HasPrefix(mountPoint, deepestMountPoint) && strings.HasPrefix(dir, mountPoint) {
deepestMountPoint = mountPoint
}
}
return deepestMountPoint
}
func FindCgroupMountpointDir() (string, error) {
f, err := os.Open("/proc/self/mountinfo")
if err != nil {

View file

@ -1,5 +1,3 @@
// +build linux freebsd
package configs
type FreezerState string
@ -45,19 +43,19 @@ type Resources struct {
Devices []*Device `json:"devices"`
// Memory limit (in bytes)
Memory uint64 `json:"memory"`
Memory int64 `json:"memory"`
// Memory reservation or soft_limit (in bytes)
MemoryReservation uint64 `json:"memory_reservation"`
MemoryReservation int64 `json:"memory_reservation"`
// Total memory usage (memory + swap); set `-1` to enable unlimited swap
MemorySwap uint64 `json:"memory_swap"`
MemorySwap int64 `json:"memory_swap"`
// Kernel memory limit (in bytes)
KernelMemory uint64 `json:"kernel_memory"`
KernelMemory int64 `json:"kernel_memory"`
// Kernel memory limit for TCP use (in bytes)
KernelMemoryTCP uint64 `json:"kernel_memory_tcp"`
KernelMemoryTCP int64 `json:"kernel_memory_tcp"`
// CPU shares (relative weight vs. other containers)
CpuShares uint64 `json:"cpu_shares"`

View file

@ -8,6 +8,7 @@ import (
"time"
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/sirupsen/logrus"
)

View file

@ -1,5 +1,3 @@
// +build freebsd linux
package configs
import "fmt"

View file

@ -1,5 +1,3 @@
// +build linux freebsd
package configs
import (
@ -81,9 +79,6 @@ type Namespace struct {
}
func (n *Namespace) GetPath(pid int) string {
if n.Path != "" {
return n.Path
}
return fmt.Sprintf("/proc/%d/ns/%s", pid, NsName(n.Type))
}

View file

@ -2,19 +2,19 @@
package configs
import "syscall"
import "golang.org/x/sys/unix"
func (n *Namespace) Syscall() int {
return namespaceInfo[n.Type]
}
var namespaceInfo = map[NamespaceType]int{
NEWNET: syscall.CLONE_NEWNET,
NEWNS: syscall.CLONE_NEWNS,
NEWUSER: syscall.CLONE_NEWUSER,
NEWIPC: syscall.CLONE_NEWIPC,
NEWUTS: syscall.CLONE_NEWUTS,
NEWPID: syscall.CLONE_NEWPID,
NEWNET: unix.CLONE_NEWNET,
NEWNS: unix.CLONE_NEWNS,
NEWUSER: unix.CLONE_NEWUSER,
NEWIPC: unix.CLONE_NEWIPC,
NEWUTS: unix.CLONE_NEWUTS,
NEWPID: unix.CLONE_NEWPID,
}
// CloneFlags parses the container's Namespaces options to set the correct

View file

@ -1,4 +1,4 @@
// +build !linux,!freebsd
// +build !linux
package configs

View file

@ -1,16 +1,14 @@
// +build linux freebsd
package devices
import (
"errors"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"syscall"
"github.com/opencontainers/runc/libcontainer/configs"
"golang.org/x/sys/unix"
)
var (
@ -19,45 +17,45 @@ var (
// Testing dependencies
var (
osLstat = os.Lstat
unixLstat = unix.Lstat
ioutilReadDir = ioutil.ReadDir
)
// Given the path to a device and its cgroup_permissions(which cannot be easily queried) look up the information about a linux device and return that information as a Device struct.
func DeviceFromPath(path, permissions string) (*configs.Device, error) {
fileInfo, err := osLstat(path)
var stat unix.Stat_t
err := unixLstat(path, &stat)
if err != nil {
return nil, err
}
var (
devType rune
mode = fileInfo.Mode()
fileModePermissionBits = os.FileMode.Perm(mode)
devNumber = int(stat.Rdev)
major = Major(devNumber)
)
if major == 0 {
return nil, ErrNotADevice
}
var (
devType rune
mode = stat.Mode
)
switch {
case mode&os.ModeDevice == 0:
return nil, ErrNotADevice
case mode&os.ModeCharDevice != 0:
fileModePermissionBits |= syscall.S_IFCHR
devType = 'c'
default:
fileModePermissionBits |= syscall.S_IFBLK
case mode&unix.S_IFBLK == unix.S_IFBLK:
devType = 'b'
case mode&unix.S_IFCHR == unix.S_IFCHR:
devType = 'c'
}
stat_t, ok := fileInfo.Sys().(*syscall.Stat_t)
if !ok {
return nil, fmt.Errorf("cannot determine the device number for device %s", path)
}
devNumber := int(stat_t.Rdev)
return &configs.Device{
Type: devType,
Path: path,
Major: Major(devNumber),
Major: major,
Minor: Minor(devNumber),
Permissions: permissions,
FileMode: fileModePermissionBits,
Uid: stat_t.Uid,
Gid: stat_t.Gid,
FileMode: os.FileMode(mode),
Uid: stat.Uid,
Gid: stat.Gid,
}, nil
}

View file

@ -1,3 +1,3 @@
// +build windows
// +build !linux
package devices

View file

@ -143,8 +143,7 @@ static int write_file(char *data, size_t data_len, char *pathfmt, ...)
fd = open(path, O_RDWR);
if (fd < 0) {
ret = -1;
goto out;
return -1;
}
len = write(fd, data, data_len);
@ -543,7 +542,7 @@ void nsexec(void)
*/
case JUMP_PARENT: {
int len;
pid_t child;
pid_t child, first_child = -1;
char buf[JSON_MAX];
bool ready = false;
@ -607,18 +606,18 @@ void nsexec(void)
}
break;
case SYNC_RECVPID_PLS: {
pid_t old = child;
first_child = child;
/* Get the init_func pid. */
if (read(syncfd, &child, sizeof(child)) != sizeof(child)) {
kill(old, SIGKILL);
kill(first_child, SIGKILL);
bail("failed to sync with child: read(childpid)");
}
/* Send ACK. */
s = SYNC_RECVPID_ACK;
if (write(syncfd, &s, sizeof(s)) != sizeof(s)) {
kill(old, SIGKILL);
kill(first_child, SIGKILL);
kill(child, SIGKILL);
bail("failed to sync with child: write(SYNC_RECVPID_ACK)");
}
@ -666,8 +665,13 @@ void nsexec(void)
}
}
/* Send the init_func pid back to our parent. */
len = snprintf(buf, JSON_MAX, "{\"pid\": %d}\n", child);
/*
* Send the init_func pid and the pid of the first child back to our parent.
*
* We need to send both back because we can't reap the first child we created (CLONE_PARENT).
* It becomes the responsibility of our parent to reap the first child.
*/
len = snprintf(buf, JSON_MAX, "{\"pid\": %d, \"pid_first\": %d}\n", child, first_child);
if (len < 0) {
kill(child, SIGKILL);
bail("unable to generate JSON for child pid");

View file

@ -7,8 +7,10 @@ import (
"fmt"
"os"
"os/exec"
"syscall"
"syscall" // only for exec
"unsafe"
"golang.org/x/sys/unix"
)
// If arg2 is nonzero, set the "child subreaper" attribute of the
@ -53,8 +55,8 @@ func Execv(cmd string, args []string, env []string) error {
return syscall.Exec(name, args, env)
}
func Prlimit(pid, resource int, limit syscall.Rlimit) error {
_, _, err := syscall.RawSyscall6(syscall.SYS_PRLIMIT64, uintptr(pid), uintptr(resource), uintptr(unsafe.Pointer(&limit)), uintptr(unsafe.Pointer(&limit)), 0, 0)
func Prlimit(pid, resource int, limit unix.Rlimit) error {
_, _, err := unix.RawSyscall6(unix.SYS_PRLIMIT64, uintptr(pid), uintptr(resource), uintptr(unsafe.Pointer(&limit)), uintptr(unsafe.Pointer(&limit)), 0, 0)
if err != 0 {
return err
}
@ -62,7 +64,7 @@ func Prlimit(pid, resource int, limit syscall.Rlimit) error {
}
func SetParentDeathSignal(sig uintptr) error {
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_PDEATHSIG, sig, 0); err != 0 {
if err := unix.Prctl(unix.PR_SET_PDEATHSIG, sig, 0, 0, 0); err != nil {
return err
}
return nil
@ -70,15 +72,14 @@ func SetParentDeathSignal(sig uintptr) error {
func GetParentDeathSignal() (ParentDeathSignal, error) {
var sig int
_, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_GET_PDEATHSIG, uintptr(unsafe.Pointer(&sig)), 0)
if err != 0 {
if err := unix.Prctl(unix.PR_GET_PDEATHSIG, uintptr(unsafe.Pointer(&sig)), 0, 0, 0); err != nil {
return -1, err
}
return ParentDeathSignal(sig), nil
}
func SetKeepCaps() error {
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_KEEPCAPS, 1, 0); err != 0 {
if err := unix.Prctl(unix.PR_SET_KEEPCAPS, 1, 0, 0, 0); err != nil {
return err
}
@ -86,7 +87,7 @@ func SetKeepCaps() error {
}
func ClearKeepCaps() error {
if _, _, err := syscall.RawSyscall(syscall.SYS_PRCTL, syscall.PR_SET_KEEPCAPS, 0, 0); err != 0 {
if err := unix.Prctl(unix.PR_SET_KEEPCAPS, 0, 0, 0, 0); err != nil {
return err
}
@ -94,7 +95,7 @@ func ClearKeepCaps() error {
}
func Setctty() error {
if _, _, err := syscall.RawSyscall(syscall.SYS_IOCTL, 0, uintptr(syscall.TIOCSCTTY), 0); err != 0 {
if err := unix.IoctlSetInt(0, unix.TIOCSCTTY, 0); err != nil {
return err
}
return nil
@ -131,13 +132,5 @@ func RunningInUserNS() bool {
// SetSubreaper sets the value i as the subreaper setting for the calling process
func SetSubreaper(i int) error {
return Prctl(PR_SET_CHILD_SUBREAPER, uintptr(i), 0, 0, 0)
}
func Prctl(option int, arg2, arg3, arg4, arg5 uintptr) (err error) {
_, _, e1 := syscall.Syscall6(syscall.SYS_PRCTL, uintptr(option), arg2, arg3, arg4, arg5, 0)
if e1 != 0 {
err = e1
}
return
return unix.Prctl(PR_SET_CHILD_SUBREAPER, uintptr(i), 0, 0, 0)
}

View file

@ -1,43 +1,113 @@
package system
import (
"fmt"
"io/ioutil"
"path/filepath"
"strconv"
"strings"
)
// look in /proc to find the process start time so that we can verify
// that this pid has started after ourself
// State is the status of a process.
type State rune
const ( // Only values for Linux 3.14 and later are listed here
Dead State = 'X'
DiskSleep State = 'D'
Running State = 'R'
Sleeping State = 'S'
Stopped State = 'T'
TracingStop State = 't'
Zombie State = 'Z'
)
// String forms of the state from proc(5)'s documentation for
// /proc/[pid]/status' "State" field.
func (s State) String() string {
switch s {
case Dead:
return "dead"
case DiskSleep:
return "disk sleep"
case Running:
return "running"
case Sleeping:
return "sleeping"
case Stopped:
return "stopped"
case TracingStop:
return "tracing stop"
case Zombie:
return "zombie"
default:
return fmt.Sprintf("unknown (%c)", s)
}
}
// Stat_t represents the information from /proc/[pid]/stat, as
// described in proc(5) with names based on the /proc/[pid]/status
// fields.
type Stat_t struct {
// PID is the process ID.
PID uint
// Name is the command run by the process.
Name string
// State is the state of the process.
State State
// StartTime is the number of clock ticks after system boot (since
// Linux 2.6).
StartTime uint64
}
// Stat returns a Stat_t instance for the specified process.
func Stat(pid int) (stat Stat_t, err error) {
bytes, err := ioutil.ReadFile(filepath.Join("/proc", strconv.Itoa(pid), "stat"))
if err != nil {
return stat, err
}
return parseStat(string(bytes))
}
// GetProcessStartTime is deprecated. Use Stat(pid) and
// Stat_t.StartTime instead.
func GetProcessStartTime(pid int) (string, error) {
data, err := ioutil.ReadFile(filepath.Join("/proc", strconv.Itoa(pid), "stat"))
stat, err := Stat(pid)
if err != nil {
return "", err
}
return parseStartTime(string(data))
return fmt.Sprintf("%d", stat.StartTime), nil
}
func parseStartTime(stat string) (string, error) {
// the starttime is located at pos 22
// from the man page
//
// starttime %llu (was %lu before Linux 2.6)
// (22) The time the process started after system boot. In kernels before Linux 2.6, this
// value was expressed in jiffies. Since Linux 2.6, the value is expressed in clock ticks
// (divide by sysconf(_SC_CLK_TCK)).
//
// NOTE:
// pos 2 could contain space and is inside `(` and `)`:
// (2) comm %s
// The filename of the executable, in parentheses.
// This is visible whether or not the executable is
// swapped out.
//
// the following is an example:
func parseStat(data string) (stat Stat_t, err error) {
// From proc(5), field 2 could contain space and is inside `(` and `)`.
// The following is an example:
// 89653 (gunicorn: maste) S 89630 89653 89653 0 -1 4194560 29689 28896 0 3 146 32 76 19 20 0 1 0 2971844 52965376 3920 18446744073709551615 1 1 0 0 0 0 0 16781312 137447943 0 0 0 17 1 0 0 0 0 0 0 0 0 0 0 0 0 0
i := strings.LastIndex(data, ")")
if i <= 2 || i >= len(data)-1 {
return stat, fmt.Errorf("invalid stat data: %q", data)
}
// get parts after last `)`:
s := strings.Split(stat, ")")
parts := strings.Split(strings.TrimSpace(s[len(s)-1]), " ")
return parts[22-3], nil // starts at 3 (after the filename pos `2`)
parts := strings.SplitN(data[:i], "(", 2)
if len(parts) != 2 {
return stat, fmt.Errorf("invalid stat data: %q", data)
}
stat.Name = parts[1]
_, err = fmt.Sscanf(parts[0], "%d", &stat.PID)
if err != nil {
return stat, err
}
// parts indexes should be offset by 3 from the field number given
// proc(5), because parts is zero-indexed and we've removed fields
// one (PID) and two (Name) in the paren-split.
parts = strings.Split(data[i+2:], " ")
var state int
fmt.Sscanf(parts[3-3], "%c", &state)
stat.State = State(state)
fmt.Sscanf(parts[22-3], "%d", &stat.StartTime)
return stat, nil
}

View file

@ -1,40 +0,0 @@
package system
import (
"fmt"
"runtime"
"syscall"
)
// Via http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b21fddd087678a70ad64afc0f632e0f1071b092
//
// We need different setns values for the different platforms and arch
// We are declaring the macro here because the SETNS syscall does not exist in th stdlib
var setNsMap = map[string]uintptr{
"linux/386": 346,
"linux/arm64": 268,
"linux/amd64": 308,
"linux/arm": 375,
"linux/ppc": 350,
"linux/ppc64": 350,
"linux/ppc64le": 350,
"linux/s390x": 339,
}
var sysSetns = setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)]
func SysSetns() uint32 {
return uint32(sysSetns)
}
func Setns(fd uintptr, flags uintptr) error {
ns, exists := setNsMap[fmt.Sprintf("%s/%s", runtime.GOOS, runtime.GOARCH)]
if !exists {
return fmt.Errorf("unsupported platform %s/%s", runtime.GOOS, runtime.GOARCH)
}
_, _, err := syscall.RawSyscall(ns, fd, flags, 0)
if err != 0 {
return err
}
return nil
}

View file

@ -3,12 +3,12 @@
package system
import (
"syscall"
"golang.org/x/sys/unix"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID32, uintptr(uid), 0, 0)
_, _, e1 := unix.RawSyscall(unix.SYS_SETUID32, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
@ -17,7 +17,7 @@ func Setuid(uid int) (err error) {
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID32, uintptr(gid), 0, 0)
_, _, e1 := unix.RawSyscall(unix.SYS_SETGID32, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}

View file

@ -3,12 +3,12 @@
package system
import (
"syscall"
"golang.org/x/sys/unix"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID, uintptr(uid), 0, 0)
_, _, e1 := unix.RawSyscall(unix.SYS_SETUID, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
@ -17,7 +17,7 @@ func Setuid(uid int) (err error) {
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID, uintptr(gid), 0, 0)
_, _, e1 := unix.RawSyscall(unix.SYS_SETGID, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}

View file

@ -3,12 +3,12 @@
package system
import (
"syscall"
"golang.org/x/sys/unix"
)
// Setuid sets the uid of the calling thread to the specified uid.
func Setuid(uid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETUID32, uintptr(uid), 0, 0)
_, _, e1 := unix.RawSyscall(unix.SYS_SETUID32, uintptr(uid), 0, 0)
if e1 != 0 {
err = e1
}
@ -17,7 +17,7 @@ func Setuid(uid int) (err error) {
// Setgid sets the gid of the calling thread to the specified gid.
func Setgid(gid int) (err error) {
_, _, e1 := syscall.RawSyscall(syscall.SYS_SETGID32, uintptr(gid), 0, 0)
_, _, e1 := unix.RawSyscall(unix.SYS_SETGID32, uintptr(gid), 0, 0)
if e1 != 0 {
err = e1
}

View file

@ -1,99 +1,35 @@
package system
import (
"syscall"
"unsafe"
)
var _zero uintptr
// Returns the size of xattrs and nil error
// Requires path, takes allocated []byte or nil as last argument
func Llistxattr(path string, dest []byte) (size int, err error) {
pathBytes, err := syscall.BytePtrFromString(path)
if err != nil {
return -1, err
}
var newpathBytes unsafe.Pointer
if len(dest) > 0 {
newpathBytes = unsafe.Pointer(&dest[0])
} else {
newpathBytes = unsafe.Pointer(&_zero)
}
_size, _, errno := syscall.Syscall6(syscall.SYS_LLISTXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(newpathBytes), uintptr(len(dest)), 0, 0, 0)
size = int(_size)
if errno != 0 {
return -1, errno
}
return size, nil
}
import "golang.org/x/sys/unix"
// Returns a []byte slice if the xattr is set and nil otherwise
// Requires path and its attribute as arguments
func Lgetxattr(path string, attr string) ([]byte, error) {
var sz int
pathBytes, err := syscall.BytePtrFromString(path)
if err != nil {
return nil, err
}
attrBytes, err := syscall.BytePtrFromString(attr)
if err != nil {
return nil, err
}
// Start with a 128 length byte array
sz = 128
dest := make([]byte, sz)
destBytes := unsafe.Pointer(&dest[0])
_sz, _, errno := syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
dest := make([]byte, 128)
sz, errno := unix.Lgetxattr(path, attr, dest)
switch {
case errno == syscall.ENODATA:
case errno == unix.ENODATA:
return nil, errno
case errno == syscall.ENOTSUP:
case errno == unix.ENOTSUP:
return nil, errno
case errno == syscall.ERANGE:
case errno == unix.ERANGE:
// 128 byte array might just not be good enough,
// A dummy buffer is used ``uintptr(0)`` to get real size
// A dummy buffer is used to get the real size
// of the xattrs on disk
_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(unsafe.Pointer(nil)), uintptr(0), 0, 0)
sz = int(_sz)
if sz < 0 {
sz, errno = unix.Lgetxattr(path, attr, []byte{})
if errno != nil {
return nil, errno
}
dest = make([]byte, sz)
destBytes := unsafe.Pointer(&dest[0])
_sz, _, errno = syscall.Syscall6(syscall.SYS_LGETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(destBytes), uintptr(len(dest)), 0, 0)
if errno != 0 {
sz, errno = unix.Lgetxattr(path, attr, dest)
if errno != nil {
return nil, errno
}
case errno != 0:
case errno != nil:
return nil, errno
}
sz = int(_sz)
return dest[:sz], nil
}
func Lsetxattr(path string, attr string, data []byte, flags int) error {
pathBytes, err := syscall.BytePtrFromString(path)
if err != nil {
return err
}
attrBytes, err := syscall.BytePtrFromString(attr)
if err != nil {
return err
}
var dataBytes unsafe.Pointer
if len(data) > 0 {
dataBytes = unsafe.Pointer(&data[0])
} else {
dataBytes = unsafe.Pointer(&_zero)
}
_, _, errno := syscall.Syscall6(syscall.SYS_LSETXATTR, uintptr(unsafe.Pointer(pathBytes)), uintptr(unsafe.Pointer(attrBytes)), uintptr(dataBytes), uintptr(len(data)), uintptr(flags), 0)
if errno != 0 {
return errno
}
return nil
}

View file

@ -2,7 +2,6 @@ package user
import (
"errors"
"syscall"
)
var (
@ -36,13 +35,6 @@ func lookupUser(filter func(u User) bool) (User, error) {
return users[0], nil
}
// CurrentUser looks up the current user by their user id in /etc/passwd. If the
// user cannot be found (or there is no /etc/passwd file on the filesystem),
// then CurrentUser returns an error.
func CurrentUser() (User, error) {
return LookupUid(syscall.Getuid())
}
// LookupUser looks up a user by their username in /etc/passwd. If the user
// cannot be found (or there is no /etc/passwd file on the filesystem), then
// LookupUser returns an error.
@ -84,13 +76,6 @@ func lookupGroup(filter func(g Group) bool) (Group, error) {
return groups[0], nil
}
// CurrentGroup looks up the current user's group by their primary group id's
// entry in /etc/passwd. If the group cannot be found (or there is no
// /etc/group file on the filesystem), then CurrentGroup returns an error.
func CurrentGroup() (Group, error) {
return LookupGid(syscall.Getgid())
}
// LookupGroup looks up a group by its name in /etc/group. If the group cannot
// be found (or there is no /etc/group file on the filesystem), then LookupGroup
// returns an error.

View file

@ -5,6 +5,8 @@ package user
import (
"io"
"os"
"golang.org/x/sys/unix"
)
// Unix-specific path to the passwd and group formatted files.
@ -28,3 +30,17 @@ func GetGroupPath() (string, error) {
func GetGroup() (io.ReadCloser, error) {
return os.Open(unixGroupPath)
}
// CurrentUser looks up the current user by their user id in /etc/passwd. If the
// user cannot be found (or there is no /etc/passwd file on the filesystem),
// then CurrentUser returns an error.
func CurrentUser() (User, error) {
return LookupUid(unix.Getuid())
}
// CurrentGroup looks up the current user's group by their primary group id's
// entry in /etc/passwd. If the group cannot be found (or there is no
// /etc/group file on the filesystem), then CurrentGroup returns an error.
func CurrentGroup() (Group, error) {
return LookupGid(unix.Getgid())
}

View file

@ -2,7 +2,10 @@
package user
import "io"
import (
"io"
"syscall"
)
func GetPasswdPath() (string, error) {
return "", ErrUnsupported
@ -19,3 +22,17 @@ func GetGroupPath() (string, error) {
func GetGroup() (io.ReadCloser, error) {
return nil, ErrUnsupported
}
// CurrentUser looks up the current user by their user id in /etc/passwd. If the
// user cannot be found (or there is no /etc/passwd file on the filesystem),
// then CurrentUser returns an error.
func CurrentUser() (User, error) {
return LookupUid(syscall.Getuid())
}
// CurrentGroup looks up the current user's group by their primary group id's
// entry in /etc/passwd. If the group cannot be found (or there is no
// /etc/group file on the filesystem), then CurrentGroup returns an error.
func CurrentGroup() (Group, error) {
return LookupGid(syscall.Getgid())
}

View file

@ -1,21 +1,21 @@
# OCI runtime-spec. When updating this, make sure you use a version tag rather
# than a commit ID so it's much more obvious what version of the spec we are
# using.
github.com/opencontainers/runtime-spec v1.0.0-rc5
github.com/opencontainers/runtime-spec v1.0.0
# Core libcontainer functionality.
github.com/mrunalp/fileutils ed869b029674c0e9ce4c0dfa781405c2d9946d08
github.com/opencontainers/selinux v1.0.0-rc1
github.com/seccomp/libseccomp-golang 32f571b70023028bd57d9288c20efbcb237f3ce0
github.com/Sirupsen/logrus 26709e2714106fb8ad40b773b711ebce25b78914
github.com/syndtr/gocapability e7cb7fa329f456b3855136a2642b197bad7366ba
github.com/sirupsen/logrus a3f95b5c423586578a4e099b11a46c2479628cac
github.com/syndtr/gocapability db04d3cc01c8b54962a58ec7e491717d06cfcc16
github.com/vishvananda/netlink 1e2e08e8a2dcdacaae3f14ac44c5cfa31361f270
# systemd integration.
github.com/coreos/go-systemd v14
github.com/coreos/pkg v3
github.com/godbus/dbus v3
github.com/golang/protobuf f7137ae6b19afbfd61a94b746fda3b3fe0491874
github.com/golang/protobuf 18c9bb3261723cd5401db4d0c9fbc5c3b6c70fe8
# Command-line interface.
github.com/docker/docker 0f5c9d301b9b1cca66b3ea0f9dec3b5317d3686d
github.com/docker/go-units v0.2.0
github.com/urfave/cli d53eb991652b1d438abdd34ce4bfa3ef1539108e
golang.org/x/sys 9a7256cb28ed514b4e1e5f68959914c4c28a92e0 https://github.com/golang/sys
golang.org/x/sys 0e0164865330d5cf1c00247be08330bf96e2f87c https://github.com/golang/sys

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@ -10,7 +10,6 @@ Additional documentation about how this group operates:
- [Code of Conduct][code-of-conduct]
- [Style and Conventions](style.md)
- [Roadmap](ROADMAP.md)
- [Implementations](implementations.md)
- [Releases](RELEASES.md)
- [project](project.md)
@ -33,12 +32,7 @@ Example use cases include sophisticated network configuration, volume garbage co
### Runtime Developers
Runtime developers can build runtime implementations that run OCI-compliant bundles and container configuration, containing low-level OS and host specific details, on a particular platform.
## Releases
There is a loose [Road Map](./ROADMAP.md).
During the `0.x` series of OCI releases we make no backwards compatibility guarantees and intend to break the schema during this series.
Runtime developers can build runtime implementations that run OCI-compliant bundles and container configuration, containing low-level OS and host-specific details, on a particular platform.
## Contributing
@ -63,7 +57,7 @@ When in doubt, start on the [mailing-list](#mailing-list).
The contributors and maintainers of all OCI projects have a weekly meeting on Wednesdays at:
* 8:00 AM (USA Pacific), during [odd weeks][iso-week].
* 5:00 PM (USA Pacific), during [even weeks][iso-week].
* 2:00 PM (USA Pacific), during [even weeks][iso-week].
There is an [iCalendar][rfc5545] format for the meetings [here](meeting.ics).
@ -145,7 +139,7 @@ Read more on [How to Write a Git Commit Message][how-to-git-commit] or the Discu
5. Use the imperative mood in the subject line
6. Wrap the body at 72 characters
7. Use the body to explain what and why vs. how
* If there was important/useful/essential conversation or information, copy or include a reference
* If there was important/useful/essential conversation or information, copy or include a reference
8. When possible, one keyword to scope the change in the subject (i.e. "README: ...", "runtime: ...")

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@ -6,26 +6,24 @@ import "os"
type Spec struct {
// Version of the Open Container Runtime Specification with which the bundle complies.
Version string `json:"ociVersion"`
// Platform specifies the configuration's target platform.
Platform Platform `json:"platform"`
// Process configures the container process.
Process Process `json:"process"`
Process *Process `json:"process,omitempty"`
// Root configures the container's root filesystem.
Root Root `json:"root"`
Root *Root `json:"root,omitempty"`
// Hostname configures the container's hostname.
Hostname string `json:"hostname,omitempty"`
// Mounts configures additional mounts (on top of Root).
Mounts []Mount `json:"mounts,omitempty"`
// Hooks configures callbacks for container lifecycle events.
Hooks *Hooks `json:"hooks,omitempty"`
Hooks *Hooks `json:"hooks,omitempty" platform:"linux,solaris"`
// Annotations contains arbitrary metadata for the container.
Annotations map[string]string `json:"annotations,omitempty"`
// Linux is platform specific configuration for Linux based containers.
// Linux is platform-specific configuration for Linux based containers.
Linux *Linux `json:"linux,omitempty" platform:"linux"`
// Solaris is platform specific configuration for Solaris containers.
// Solaris is platform-specific configuration for Solaris based containers.
Solaris *Solaris `json:"solaris,omitempty" platform:"solaris"`
// Windows is platform specific configuration for Windows based containers, including Hyper-V containers.
// Windows is platform-specific configuration for Windows based containers.
Windows *Windows `json:"windows,omitempty" platform:"windows"`
}
@ -34,7 +32,7 @@ type Process struct {
// Terminal creates an interactive terminal for the container.
Terminal bool `json:"terminal,omitempty"`
// ConsoleSize specifies the size of the console.
ConsoleSize Box `json:"consoleSize,omitempty"`
ConsoleSize *Box `json:"consoleSize,omitempty"`
// User specifies user information for the process.
User User `json:"user"`
// Args specifies the binary and arguments for the application to execute.
@ -47,11 +45,13 @@ type Process struct {
// Capabilities are Linux capabilities that are kept for the process.
Capabilities *LinuxCapabilities `json:"capabilities,omitempty" platform:"linux"`
// Rlimits specifies rlimit options to apply to the process.
Rlimits []LinuxRlimit `json:"rlimits,omitempty" platform:"linux"`
Rlimits []POSIXRlimit `json:"rlimits,omitempty" platform:"linux,solaris"`
// NoNewPrivileges controls whether additional privileges could be gained by processes in the container.
NoNewPrivileges bool `json:"noNewPrivileges,omitempty" platform:"linux"`
// ApparmorProfile specifies the apparmor profile for the container.
ApparmorProfile string `json:"apparmorProfile,omitempty" platform:"linux"`
// Specify an oom_score_adj for the container.
OOMScoreAdj *int `json:"oomScoreAdj,omitempty" platform:"linux"`
// SelinuxLabel specifies the selinux context that the container process is run as.
SelinuxLabel string `json:"selinuxLabel,omitempty" platform:"linux"`
}
@ -99,23 +99,13 @@ type Root struct {
Readonly bool `json:"readonly,omitempty"`
}
// Platform specifies OS and arch information for the host system that the container
// is created for.
type Platform struct {
// OS is the operating system.
OS string `json:"os"`
// Arch is the architecture
Arch string `json:"arch"`
}
// Mount specifies a mount for a container.
type Mount struct {
// Destination is the path where the mount will be placed relative to the container's root. The path and child directories MUST exist, a runtime MUST NOT create directories automatically to a mount point.
// Destination is the absolute path where the mount will be placed in the container.
Destination string `json:"destination"`
// Type specifies the mount kind.
Type string `json:"type,omitempty"`
// Source specifies the source path of the mount. In the case of bind mounts on
// Linux based systems this would be the file on the host.
Type string `json:"type,omitempty" platform:"linux,solaris"`
// Source specifies the source path of the mount.
Source string `json:"source,omitempty"`
// Options are fstab style mount options.
Options []string `json:"options,omitempty"`
@ -132,7 +122,6 @@ type Hook struct {
// Hooks for container setup and teardown
type Hooks struct {
// Prestart is a list of hooks to be run before the container process is executed.
// On Linux, they are run after the container namespaces are created.
Prestart []Hook `json:"prestart,omitempty"`
// Poststart is a list of hooks to be run after the container process is started.
Poststart []Hook `json:"poststart,omitempty"`
@ -140,11 +129,11 @@ type Hooks struct {
Poststop []Hook `json:"poststop,omitempty"`
}
// Linux contains platform specific configuration for Linux based containers.
// Linux contains platform-specific configuration for Linux based containers.
type Linux struct {
// UIDMapping specifies user mappings for supporting user namespaces on Linux.
// UIDMapping specifies user mappings for supporting user namespaces.
UIDMappings []LinuxIDMapping `json:"uidMappings,omitempty"`
// GIDMapping specifies group mappings for supporting user namespaces on Linux.
// GIDMapping specifies group mappings for supporting user namespaces.
GIDMappings []LinuxIDMapping `json:"gidMappings,omitempty"`
// Sysctl are a set of key value pairs that are set for the container on start
Sysctl map[string]string `json:"sysctl,omitempty"`
@ -176,7 +165,7 @@ type Linux struct {
// LinuxNamespace is the configuration for a Linux namespace
type LinuxNamespace struct {
// Type is the type of Linux namespace
// Type is the type of namespace
Type LinuxNamespaceType `json:"type"`
// Path is a path to an existing namespace persisted on disk that can be joined
// and is of the same type
@ -213,8 +202,8 @@ type LinuxIDMapping struct {
Size uint32 `json:"size"`
}
// LinuxRlimit type and restrictions
type LinuxRlimit struct {
// POSIXRlimit type and restrictions
type POSIXRlimit struct {
// Type of the rlimit to set
Type string `json:"type"`
// Hard is the hard limit for the specified type
@ -247,7 +236,7 @@ type linuxBlockIODevice struct {
Minor int64 `json:"minor"`
}
// LinuxWeightDevice struct holds a `major:minor weight` pair for blkioWeightDevice
// LinuxWeightDevice struct holds a `major:minor weight` pair for weightDevice
type LinuxWeightDevice struct {
linuxBlockIODevice
// Weight is the bandwidth rate for the device.
@ -266,35 +255,37 @@ type LinuxThrottleDevice struct {
// LinuxBlockIO for Linux cgroup 'blkio' resource management
type LinuxBlockIO struct {
// Specifies per cgroup weight
Weight *uint16 `json:"blkioWeight,omitempty"`
Weight *uint16 `json:"weight,omitempty"`
// Specifies tasks' weight in the given cgroup while competing with the cgroup's child cgroups, CFQ scheduler only
LeafWeight *uint16 `json:"blkioLeafWeight,omitempty"`
LeafWeight *uint16 `json:"leafWeight,omitempty"`
// Weight per cgroup per device, can override BlkioWeight
WeightDevice []LinuxWeightDevice `json:"blkioWeightDevice,omitempty"`
WeightDevice []LinuxWeightDevice `json:"weightDevice,omitempty"`
// IO read rate limit per cgroup per device, bytes per second
ThrottleReadBpsDevice []LinuxThrottleDevice `json:"blkioThrottleReadBpsDevice,omitempty"`
ThrottleReadBpsDevice []LinuxThrottleDevice `json:"throttleReadBpsDevice,omitempty"`
// IO write rate limit per cgroup per device, bytes per second
ThrottleWriteBpsDevice []LinuxThrottleDevice `json:"blkioThrottleWriteBpsDevice,omitempty"`
ThrottleWriteBpsDevice []LinuxThrottleDevice `json:"throttleWriteBpsDevice,omitempty"`
// IO read rate limit per cgroup per device, IO per second
ThrottleReadIOPSDevice []LinuxThrottleDevice `json:"blkioThrottleReadIOPSDevice,omitempty"`
ThrottleReadIOPSDevice []LinuxThrottleDevice `json:"throttleReadIOPSDevice,omitempty"`
// IO write rate limit per cgroup per device, IO per second
ThrottleWriteIOPSDevice []LinuxThrottleDevice `json:"blkioThrottleWriteIOPSDevice,omitempty"`
ThrottleWriteIOPSDevice []LinuxThrottleDevice `json:"throttleWriteIOPSDevice,omitempty"`
}
// LinuxMemory for Linux cgroup 'memory' resource management
type LinuxMemory struct {
// Memory limit (in bytes).
Limit *uint64 `json:"limit,omitempty"`
Limit *int64 `json:"limit,omitempty"`
// Memory reservation or soft_limit (in bytes).
Reservation *uint64 `json:"reservation,omitempty"`
Reservation *int64 `json:"reservation,omitempty"`
// Total memory limit (memory + swap).
Swap *uint64 `json:"swap,omitempty"`
Swap *int64 `json:"swap,omitempty"`
// Kernel memory limit (in bytes).
Kernel *uint64 `json:"kernel,omitempty"`
Kernel *int64 `json:"kernel,omitempty"`
// Kernel memory limit for tcp (in bytes)
KernelTCP *uint64 `json:"kernelTCP,omitempty"`
// How aggressive the kernel will swap memory pages. Range from 0 to 100.
KernelTCP *int64 `json:"kernelTCP,omitempty"`
// How aggressive the kernel will swap memory pages.
Swappiness *uint64 `json:"swappiness,omitempty"`
// DisableOOMKiller disables the OOM killer for out of memory conditions
DisableOOMKiller *bool `json:"disableOOMKiller,omitempty"`
}
// LinuxCPU for Linux cgroup 'cpu' resource management
@ -333,10 +324,6 @@ type LinuxNetwork struct {
type LinuxResources struct {
// Devices configures the device whitelist.
Devices []LinuxDeviceCgroup `json:"devices,omitempty"`
// DisableOOMKiller disables the OOM killer for out of memory conditions
DisableOOMKiller *bool `json:"disableOOMKiller,omitempty"`
// Specify an oom_score_adj for the container.
OOMScoreAdj *int `json:"oomScoreAdj,omitempty"`
// Memory restriction configuration
Memory *LinuxMemory `json:"memory,omitempty"`
// CPU resource restriction configuration
@ -383,7 +370,7 @@ type LinuxDeviceCgroup struct {
Access string `json:"access,omitempty"`
}
// Solaris contains platform specific configuration for Solaris application containers.
// Solaris contains platform-specific configuration for Solaris application containers.
type Solaris struct {
// SMF FMRI which should go "online" before we start the container process.
Milestone string `json:"milestone,omitempty"`
@ -430,8 +417,20 @@ type SolarisAnet struct {
// Windows defines the runtime configuration for Windows based containers, including Hyper-V containers.
type Windows struct {
// LayerFolders contains a list of absolute paths to directories containing image layers.
LayerFolders []string `json:"layerFolders"`
// Resources contains information for handling resource constraints for the container.
Resources *WindowsResources `json:"resources,omitempty"`
// CredentialSpec contains a JSON object describing a group Managed Service Account (gMSA) specification.
CredentialSpec interface{} `json:"credentialSpec,omitempty"`
// Servicing indicates if the container is being started in a mode to apply a Windows Update servicing operation.
Servicing bool `json:"servicing,omitempty"`
// IgnoreFlushesDuringBoot indicates if the container is being started in a mode where disk writes are not flushed during its boot process.
IgnoreFlushesDuringBoot bool `json:"ignoreFlushesDuringBoot,omitempty"`
// HyperV contains information for running a container with Hyper-V isolation.
HyperV *WindowsHyperV `json:"hyperv,omitempty"`
// Network restriction configuration.
Network *WindowsNetwork `json:"network,omitempty"`
}
// WindowsResources has container runtime resource constraints for containers running on Windows.
@ -442,23 +441,19 @@ type WindowsResources struct {
CPU *WindowsCPUResources `json:"cpu,omitempty"`
// Storage restriction configuration.
Storage *WindowsStorageResources `json:"storage,omitempty"`
// Network restriction configuration.
Network *WindowsNetworkResources `json:"network,omitempty"`
}
// WindowsMemoryResources contains memory resource management settings.
type WindowsMemoryResources struct {
// Memory limit in bytes.
Limit *uint64 `json:"limit,omitempty"`
// Memory reservation in bytes.
Reservation *uint64 `json:"reservation,omitempty"`
}
// WindowsCPUResources contains CPU resource management settings.
type WindowsCPUResources struct {
// Number of CPUs available to the container.
Count *uint64 `json:"count,omitempty"`
// CPU shares (relative weight to other containers with cpu shares). Range is from 1 to 10000.
// CPU shares (relative weight to other containers with cpu shares).
Shares *uint16 `json:"shares,omitempty"`
// Specifies the portion of processor cycles that this container can use as a percentage times 100.
Maximum *uint16 `json:"maximum,omitempty"`
@ -474,10 +469,22 @@ type WindowsStorageResources struct {
SandboxSize *uint64 `json:"sandboxSize,omitempty"`
}
// WindowsNetworkResources contains network resource management settings.
type WindowsNetworkResources struct {
// EgressBandwidth is the maximum egress bandwidth in bytes per second.
EgressBandwidth *uint64 `json:"egressBandwidth,omitempty"`
// WindowsNetwork contains network settings for Windows containers.
type WindowsNetwork struct {
// List of HNS endpoints that the container should connect to.
EndpointList []string `json:"endpointList,omitempty"`
// Specifies if unqualified DNS name resolution is allowed.
AllowUnqualifiedDNSQuery bool `json:"allowUnqualifiedDNSQuery,omitempty"`
// Comma separated list of DNS suffixes to use for name resolution.
DNSSearchList []string `json:"DNSSearchList,omitempty"`
// Name (ID) of the container that we will share with the network stack.
NetworkSharedContainerName string `json:"networkSharedContainerName,omitempty"`
}
// WindowsHyperV contains information for configuring a container to run with Hyper-V isolation.
type WindowsHyperV struct {
// UtilityVMPath is an optional path to the image used for the Utility VM.
UtilityVMPath string `json:"utilityVMPath,omitempty"`
}
// LinuxSeccomp represents syscall restrictions
@ -543,7 +550,7 @@ const (
type LinuxSeccompArg struct {
Index uint `json:"index"`
Value uint64 `json:"value"`
ValueTwo uint64 `json:"valueTwo"`
ValueTwo uint64 `json:"valueTwo,omitempty"`
Op LinuxSeccompOperator `json:"op"`
}

View file

@ -9,7 +9,7 @@ type State struct {
// Status is the runtime status of the container.
Status string `json:"status"`
// Pid is the process ID for the container process.
Pid int `json:"pid"`
Pid int `json:"pid,omitempty"`
// Bundle is the path to the container's bundle directory.
Bundle string `json:"bundle"`
// Annotations are key values associated with the container.

View file

@ -11,7 +11,7 @@ const (
VersionPatch = 0
// VersionDev indicates development branch. Releases will be empty string.
VersionDev = "-rc5-dev"
VersionDev = ""
)
// Version is the specification version that the package types support.