113 lines
2.9 KiB
Go
113 lines
2.9 KiB
Go
package specs
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
spec "github.com/opencontainers/runtime-spec/specs-go"
|
|
)
|
|
|
|
// ApplyOCIEditsForDevice applies devices OCI edits, in other words
|
|
// it finds the device in the CDI spec and applies the OCI patches that device
|
|
// requires to the OCI specification.
|
|
func ApplyOCIEditsForDevice(config *spec.Spec, cdi *Spec, dev string) error {
|
|
for _, d := range cdi.Devices {
|
|
if d.Name != dev {
|
|
continue
|
|
}
|
|
|
|
return ApplyEditsToOCISpec(config, &d.ContainerEdits)
|
|
}
|
|
|
|
return fmt.Errorf("CDI: device %q not found for spec %q", dev, cdi.Kind)
|
|
}
|
|
|
|
// ApplyOCIEdits applies the OCI edits the CDI spec declares globablly
|
|
func ApplyOCIEdits(config *spec.Spec, cdi *Spec) error {
|
|
return ApplyEditsToOCISpec(config, &cdi.ContainerEdits)
|
|
}
|
|
|
|
// ApplyEditsToOCISpec applies the specified edits to the OCI spec.
|
|
func ApplyEditsToOCISpec(config *spec.Spec, edits *ContainerEdits) error {
|
|
if config == nil {
|
|
return errors.New("spec is nil")
|
|
}
|
|
if edits == nil {
|
|
return nil
|
|
}
|
|
|
|
if len(edits.Env) > 0 {
|
|
if config.Process == nil {
|
|
config.Process = &spec.Process{}
|
|
}
|
|
config.Process.Env = append(config.Process.Env, edits.Env...)
|
|
}
|
|
|
|
for _, d := range edits.DeviceNodes {
|
|
if config.Linux == nil {
|
|
config.Linux = &spec.Linux{}
|
|
}
|
|
config.Linux.Devices = append(config.Linux.Devices, d.ToOCI())
|
|
}
|
|
|
|
for _, m := range edits.Mounts {
|
|
config.Mounts = append(config.Mounts, m.ToOCI())
|
|
}
|
|
|
|
for _, h := range edits.Hooks {
|
|
if config.Hooks == nil {
|
|
config.Hooks = &spec.Hooks{}
|
|
}
|
|
switch h.HookName {
|
|
case "prestart":
|
|
config.Hooks.Prestart = append(config.Hooks.Prestart, h.ToOCI())
|
|
case "createRuntime":
|
|
config.Hooks.CreateRuntime = append(config.Hooks.CreateRuntime, h.ToOCI())
|
|
case "createContainer":
|
|
config.Hooks.CreateContainer = append(config.Hooks.CreateContainer, h.ToOCI())
|
|
case "startContainer":
|
|
config.Hooks.StartContainer = append(config.Hooks.StartContainer, h.ToOCI())
|
|
case "poststart":
|
|
config.Hooks.Poststart = append(config.Hooks.Poststart, h.ToOCI())
|
|
case "poststop":
|
|
config.Hooks.Poststop = append(config.Hooks.Poststop, h.ToOCI())
|
|
default:
|
|
fmt.Printf("CDI: Unknown hook %q\n", h.HookName)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// ToOCI returns the opencontainers runtime Spec Hook for this Hook.
|
|
func (h *Hook) ToOCI() spec.Hook {
|
|
return spec.Hook{
|
|
Path: h.Path,
|
|
Args: h.Args,
|
|
Env: h.Env,
|
|
Timeout: h.Timeout,
|
|
}
|
|
}
|
|
|
|
// ToOCI returns the opencontainers runtime Spec Mount for this Mount.
|
|
func (m *Mount) ToOCI() spec.Mount {
|
|
return spec.Mount{
|
|
Source: m.HostPath,
|
|
Destination: m.ContainerPath,
|
|
Options: m.Options,
|
|
}
|
|
}
|
|
|
|
// ToOCI returns the opencontainers runtime Spec LinuxDevice for this DeviceNode.
|
|
func (d *DeviceNode) ToOCI() spec.LinuxDevice {
|
|
return spec.LinuxDevice{
|
|
Path: d.Path,
|
|
Type: d.Type,
|
|
Major: d.Major,
|
|
Minor: d.Minor,
|
|
FileMode: d.FileMode,
|
|
UID: d.UID,
|
|
GID: d.GID,
|
|
}
|
|
}
|