Bump up runtime-spec dependency to v1.0.0

Signed-off-by: Mrunal Patel <mpatel@redhat.com>
This commit is contained in:
Mrunal Patel 2017-07-19 21:07:01 -07:00
parent 0eb5cd527f
commit 4128bbd7dc
83 changed files with 1020 additions and 14970 deletions

View file

@ -267,25 +267,8 @@ func getCgroupData(c *configs.Cgroup, pid int) (*cgroupData, error) {
}, nil
}
func (raw *cgroupData) parentPath(subsystem, mountpoint, root string) (string, error) {
// Use GetThisCgroupDir instead of GetInitCgroupDir, because the creating
// process could in container and shared pid namespace with host, and
// /proc/1/cgroup could point to whole other world of cgroups.
initPath, err := cgroups.GetThisCgroupDir(subsystem)
if err != nil {
return "", err
}
// This is needed for nested containers, because in /proc/self/cgroup we
// see pathes from host, which don't exist in container.
relDir, err := filepath.Rel(root, initPath)
if err != nil {
return "", err
}
return filepath.Join(mountpoint, relDir), nil
}
func (raw *cgroupData) path(subsystem string) (string, error) {
mnt, root, err := cgroups.FindCgroupMountpointAndRoot(subsystem)
mnt, err := cgroups.FindCgroupMountpoint(subsystem)
// If we didn't mount the subsystem, there is no point we make the path.
if err != nil {
return "", err
@ -297,7 +280,10 @@ func (raw *cgroupData) path(subsystem string) (string, error) {
return filepath.Join(raw.root, filepath.Base(mnt), raw.innerPath), nil
}
parentPath, err := raw.parentPath(subsystem, mnt, root)
// Use GetOwnCgroupPath instead of GetInitCgroupPath, because the creating
// process could in container and shared pid namespace with host, and
// /proc/1/cgroup could point to whole other world of cgroups.
parentPath, err := cgroups.GetOwnCgroupPath(subsystem)
if err != nil {
return "", err
}
@ -346,8 +332,8 @@ func removePath(p string, err error) error {
return nil
}
func CheckCpushares(path string, c int64) error {
var cpuShares int64
func CheckCpushares(path string, c uint64) error {
var cpuShares uint64
if c == 0 {
return nil

View file

@ -55,7 +55,7 @@ func (s *CpuGroup) ApplyDir(path string, cgroup *configs.Cgroup, pid int) error
func (s *CpuGroup) SetRtSched(path string, cgroup *configs.Cgroup) error {
if cgroup.Resources.CpuRtPeriod != 0 {
if err := writeFile(path, "cpu.rt_period_us", strconv.FormatInt(cgroup.Resources.CpuRtPeriod, 10)); err != nil {
if err := writeFile(path, "cpu.rt_period_us", strconv.FormatUint(cgroup.Resources.CpuRtPeriod, 10)); err != nil {
return err
}
}
@ -69,12 +69,12 @@ func (s *CpuGroup) SetRtSched(path string, cgroup *configs.Cgroup) error {
func (s *CpuGroup) Set(path string, cgroup *configs.Cgroup) error {
if cgroup.Resources.CpuShares != 0 {
if err := writeFile(path, "cpu.shares", strconv.FormatInt(cgroup.Resources.CpuShares, 10)); err != nil {
if err := writeFile(path, "cpu.shares", strconv.FormatUint(cgroup.Resources.CpuShares, 10)); err != nil {
return err
}
}
if cgroup.Resources.CpuPeriod != 0 {
if err := writeFile(path, "cpu.cfs_period_us", strconv.FormatInt(cgroup.Resources.CpuPeriod, 10)); err != nil {
if err := writeFile(path, "cpu.cfs_period_us", strconv.FormatUint(cgroup.Resources.CpuPeriod, 10)); err != nil {
return err
}
}

View file

@ -57,10 +57,11 @@ func (s *CpusetGroup) ApplyDir(dir string, cgroup *configs.Cgroup, pid int) erro
if dir == "" {
return nil
}
root, err := getCgroupRoot()
mountInfo, err := ioutil.ReadFile("/proc/self/mountinfo")
if err != nil {
return err
}
root := filepath.Dir(cgroups.GetClosestMountpointAncestor(dir, string(mountInfo)))
// 'ensureParent' start with parent because we don't want to
// explicitly inherit from parent, it could conflict with
// 'cpuset.cpu_exclusive'.

View file

@ -10,13 +10,19 @@ import (
"path/filepath"
"strconv"
"strings"
"syscall"
"syscall" // only for Errno
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/configs"
"golang.org/x/sys/unix"
)
const cgroupKernelMemoryLimit = "memory.kmem.limit_in_bytes"
const (
cgroupKernelMemoryLimit = "memory.kmem.limit_in_bytes"
cgroupMemorySwapLimit = "memory.memsw.limit_in_bytes"
cgroupMemoryLimit = "memory.limit_in_bytes"
)
type MemoryGroup struct {
}
@ -29,14 +35,18 @@ func (s *MemoryGroup) Apply(d *cgroupData) (err error) {
path, err := d.path("memory")
if err != nil && !cgroups.IsNotFound(err) {
return err
} else if path == "" {
return nil
}
if memoryAssigned(d.config) {
if path != "" {
if _, err := os.Stat(path); os.IsNotExist(err) {
if err := os.MkdirAll(path, 0755); err != nil {
return err
}
}
if d.config.KernelMemory != 0 {
// Only enable kernel memory accouting when this cgroup
// is created by libcontainer, otherwise we might get
// error when people use `cgroupsPath` to join an existed
// cgroup whose kernel memory is not initialized.
if err := EnableKernelMemoryAccounting(path); err != nil {
return err
}
@ -85,7 +95,7 @@ func setKernelMemory(path string, kernelMemoryLimit int64) error {
// once tasks have been attached to the cgroup
if pathErr, ok := err.(*os.PathError); ok {
if errNo, ok := pathErr.Err.(syscall.Errno); ok {
if errNo == syscall.EBUSY {
if errNo == unix.EBUSY {
return fmt.Errorf("failed to set %s, because either tasks have already joined this cgroup or it has children", cgroupKernelMemoryLimit)
}
}
@ -96,9 +106,18 @@ func setKernelMemory(path string, kernelMemoryLimit int64) error {
}
func setMemoryAndSwap(path string, cgroup *configs.Cgroup) error {
// If the memory update is set to -1 we should also
// set swap to -1, it means unlimited memory.
if cgroup.Resources.Memory == -1 {
// Only set swap if it's enabled in kernel
if cgroups.PathExists(filepath.Join(path, cgroupMemorySwapLimit)) {
cgroup.Resources.MemorySwap = -1
}
}
// When memory and swap memory are both set, we need to handle the cases
// for updating container.
if cgroup.Resources.Memory != 0 && cgroup.Resources.MemorySwap > 0 {
if cgroup.Resources.Memory != 0 && cgroup.Resources.MemorySwap != 0 {
memoryUsage, err := getMemoryData(path, "")
if err != nil {
return err
@ -107,29 +126,29 @@ func setMemoryAndSwap(path string, cgroup *configs.Cgroup) error {
// When update memory limit, we should adapt the write sequence
// for memory and swap memory, so it won't fail because the new
// value and the old value don't fit kernel's validation.
if memoryUsage.Limit < uint64(cgroup.Resources.MemorySwap) {
if err := writeFile(path, "memory.memsw.limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
if cgroup.Resources.MemorySwap == -1 || memoryUsage.Limit < uint64(cgroup.Resources.MemorySwap) {
if err := writeFile(path, cgroupMemorySwapLimit, strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
return err
}
if err := writeFile(path, "memory.limit_in_bytes", strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
if err := writeFile(path, cgroupMemoryLimit, strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
return err
}
} else {
if err := writeFile(path, "memory.limit_in_bytes", strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
if err := writeFile(path, cgroupMemoryLimit, strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
return err
}
if err := writeFile(path, "memory.memsw.limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
if err := writeFile(path, cgroupMemorySwapLimit, strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
return err
}
}
} else {
if cgroup.Resources.Memory != 0 {
if err := writeFile(path, "memory.limit_in_bytes", strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
if err := writeFile(path, cgroupMemoryLimit, strconv.FormatInt(cgroup.Resources.Memory, 10)); err != nil {
return err
}
}
if cgroup.Resources.MemorySwap > 0 {
if err := writeFile(path, "memory.memsw.limit_in_bytes", strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
if cgroup.Resources.MemorySwap != 0 {
if err := writeFile(path, cgroupMemorySwapLimit, strconv.FormatInt(cgroup.Resources.MemorySwap, 10)); err != nil {
return err
}
}
@ -167,12 +186,12 @@ func (s *MemoryGroup) Set(path string, cgroup *configs.Cgroup) error {
}
if cgroup.Resources.MemorySwappiness == nil || int64(*cgroup.Resources.MemorySwappiness) == -1 {
return nil
} else if int64(*cgroup.Resources.MemorySwappiness) >= 0 && int64(*cgroup.Resources.MemorySwappiness) <= 100 {
if err := writeFile(path, "memory.swappiness", strconv.FormatInt(*cgroup.Resources.MemorySwappiness, 10)); err != nil {
} else if *cgroup.Resources.MemorySwappiness <= 100 {
if err := writeFile(path, "memory.swappiness", strconv.FormatUint(*cgroup.Resources.MemorySwappiness, 10)); err != nil {
return err
}
} else {
return fmt.Errorf("invalid value:%d. valid memory swappiness range is 0-100", int64(*cgroup.Resources.MemorySwappiness))
return fmt.Errorf("invalid value:%d. valid memory swappiness range is 0-100", *cgroup.Resources.MemorySwappiness)
}
return nil
@ -224,6 +243,14 @@ func (s *MemoryGroup) GetStats(path string, stats *cgroups.Stats) error {
}
stats.MemoryStats.KernelTCPUsage = kernelTCPUsage
useHierarchy := strings.Join([]string{"memory", "use_hierarchy"}, ".")
value, err := getCgroupParamUint(path, useHierarchy)
if err != nil {
return err
}
if value == 1 {
stats.MemoryStats.UseHierarchy = true
}
return nil
}
@ -234,7 +261,7 @@ func memoryAssigned(cgroup *configs.Cgroup) bool {
cgroup.Resources.KernelMemory > 0 ||
cgroup.Resources.KernelMemoryTCP > 0 ||
cgroup.Resources.OomKillDisable ||
(cgroup.Resources.MemorySwappiness != nil && *cgroup.Resources.MemorySwappiness != -1)
(cgroup.Resources.MemorySwappiness != nil && int64(*cgroup.Resources.MemorySwappiness) != -1)
}
func getMemoryData(path, name string) (cgroups.MemoryData, error) {