moby/daemon/update_linux.go
Sebastiaan van Stijn f5209d23a8
daemon: add nolint-comments for deprecated kernel-memory options, hooks
This adds some nolint-comments for the deprecated kernel-memory options; we
deprecated these, but they could technically still be accepted by alternative
runtimes.

    daemon/daemon_unix.go:108:3: SA1019: memory.Kernel is deprecated: kernel-memory limits are not supported in cgroups v2, and were obsoleted in [kernel v5.4]. This field should no longer be used, as it may be ignored by runtimes. (staticcheck)
            memory.Kernel = &config.KernelMemory
            ^
    daemon/update_linux.go:63:3: SA1019: memory.Kernel is deprecated: kernel-memory limits are not supported in cgroups v2, and were obsoleted in [kernel v5.4]. This field should no longer be used, as it may be ignored by runtimes. (staticcheck)
            memory.Kernel = &resources.KernelMemory
            ^

Prestart hooks are deprecated, and more granular hooks should be used instead.
CreateRuntime are the closest equivalent, and executed in the same locations
as Prestart-hooks, but depending on what these hooks do, possibly one of the
other hooks could be used instead (such as CreateContainer or StartContainer).
As these hooks are still supported, this patch adds nolint comments, but adds
some TODOs to consider migrating to something else;

    daemon/nvidia_linux.go:86:2: SA1019: s.Hooks.Prestart is deprecated: use [Hooks.CreateRuntime], [Hooks.CreateContainer], and [Hooks.StartContainer] instead, which allow more granular hook control during the create and start phase. (staticcheck)
        s.Hooks.Prestart = append(s.Hooks.Prestart, specs.Hook{
        ^

    daemon/oci_linux.go:76:5: SA1019: s.Hooks.Prestart is deprecated: use [Hooks.CreateRuntime], [Hooks.CreateContainer], and [Hooks.StartContainer] instead, which allow more granular hook control during the create and start phase. (staticcheck)
                    s.Hooks.Prestart = append(s.Hooks.Prestart, specs.Hook{
                    ^

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2024-04-15 17:55:47 +02:00

75 lines
2 KiB
Go

package daemon // import "github.com/docker/docker/daemon"
import (
"time"
"github.com/docker/docker/api/types/container"
libcontainerdtypes "github.com/docker/docker/libcontainerd/types"
specs "github.com/opencontainers/runtime-spec/specs-go"
)
func toContainerdResources(resources container.Resources) *libcontainerdtypes.Resources {
var r libcontainerdtypes.Resources
if resources.BlkioWeight != 0 {
r.BlockIO = &specs.LinuxBlockIO{
Weight: &resources.BlkioWeight,
}
}
cpu := specs.LinuxCPU{
Cpus: resources.CpusetCpus,
Mems: resources.CpusetMems,
}
if resources.CPUShares != 0 {
shares := uint64(resources.CPUShares)
cpu.Shares = &shares
}
var (
period uint64
quota int64
)
if resources.NanoCPUs != 0 {
period = uint64(100 * time.Millisecond / time.Microsecond)
quota = resources.NanoCPUs * int64(period) / 1e9
}
if quota == 0 && resources.CPUQuota != 0 {
quota = resources.CPUQuota
}
if period == 0 && resources.CPUPeriod != 0 {
period = uint64(resources.CPUPeriod)
}
if period != 0 {
cpu.Period = &period
}
if quota != 0 {
cpu.Quota = &quota
}
if cpu != (specs.LinuxCPU{}) {
r.CPU = &cpu
}
var memory specs.LinuxMemory
if resources.Memory != 0 {
memory.Limit = &resources.Memory
}
if resources.MemoryReservation != 0 {
memory.Reservation = &resources.MemoryReservation
}
if resources.KernelMemory != 0 { //nolint:staticcheck // ignore SA1019: memory.Kernel is deprecated: kernel-memory limits are not supported in cgroups v2, and were obsoleted in [kernel v5.4]. This field should no longer be used, as it may be ignored by runtimes.
memory.Kernel = &resources.KernelMemory //nolint:staticcheck // ignore SA1019: memory.Kernel is deprecated: kernel-memory limits are not supported in cgroups v2, and were obsoleted in [kernel v5.4]. This field should no longer be used, as it may be ignored by runtimes.
}
if resources.MemorySwap > 0 {
memory.Swap = &resources.MemorySwap
}
if memory != (specs.LinuxMemory{}) {
r.Memory = &memory
}
r.Pids = getPidsLimit(resources)
return &r
}