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resource_list_validation.go
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resource_list_validation.go
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package v1beta2
import (
"fmt"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/pkg/errors"
types "github.com/akash-network/node/types/v1beta2"
)
var (
ErrNoGroupsPresent = errors.New("validation: no groups present")
ErrGroupEmptyName = errors.New("validation: group has empty name")
)
func ValidateResourceList(rlist types.ResourceGroup) error {
if rlist.GetName() == "" {
return ErrGroupEmptyName
}
units := rlist.GetResources()
if count := len(units); count > validationConfig.MaxGroupUnits {
return errors.Errorf("group %v: too many units (%v > %v)", rlist.GetName(), count, validationConfig.MaxGroupUnits)
}
limits := newLimits()
for _, resource := range units {
gLimits, err := validateResourceGroup(resource)
if err != nil {
return fmt.Errorf("group %v: %w", rlist.GetName(), err)
}
gLimits.mul(resource.Count)
limits.add(gLimits)
}
if limits.cpu.GT(sdk.NewIntFromUint64(validationConfig.MaxGroupCPU)) || limits.cpu.LTE(sdk.ZeroInt()) {
return errors.Errorf("group %v: invalid total CPU (%v > %v > %v fails)",
rlist.GetName(), validationConfig.MaxGroupCPU, limits.cpu, 0)
}
if limits.memory.GT(sdk.NewIntFromUint64(validationConfig.MaxGroupMemory)) || limits.memory.LTE(sdk.ZeroInt()) {
return errors.Errorf("group %v: invalid total memory (%v > %v > %v fails)",
rlist.GetName(), validationConfig.MaxGroupMemory, limits.memory, 0)
}
for i := range limits.storage {
if limits.storage[i].GT(sdk.NewIntFromUint64(validationConfig.MaxGroupStorage)) || limits.storage[i].LTE(sdk.ZeroInt()) {
return errors.Errorf("group %v: invalid total storage (%v > %v > %v fails)",
rlist.GetName(), validationConfig.MaxGroupStorage, limits.storage, 0)
}
}
return nil
}
func validateResourceGroup(rg types.Resources) (resourceLimits, error) {
limits, err := validateResourceUnit(rg.Resources)
if err != nil {
return resourceLimits{}, err
}
if rg.Count > uint32(validationConfig.MaxUnitCount) || rg.Count < uint32(validationConfig.MinUnitCount) {
return resourceLimits{}, errors.Errorf("error: invalid unit count (%v > %v > %v fails)",
validationConfig.MaxUnitCount, rg.Count, validationConfig.MinUnitCount)
}
return limits, nil
}
func validateResourceUnit(units types.ResourceUnits) (resourceLimits, error) {
limits := newLimits()
val, err := validateCPU(units.CPU)
if err != nil {
return resourceLimits{}, err
}
limits.cpu = limits.cpu.Add(val)
val, err = validateMemory(units.Memory)
if err != nil {
return resourceLimits{}, err
}
limits.memory = limits.memory.Add(val)
var storage []sdk.Int
storage, err = validateStorage(units.Storage)
if err != nil {
return resourceLimits{}, err
}
// fixme this is not actually sum for storage usecase.
// do we really need sum here?
limits.storage = storage
return limits, nil
}
func validateCPU(u *types.CPU) (sdk.Int, error) {
if u == nil {
return sdk.Int{}, errors.Errorf("error: invalid unit CPU, cannot be nil")
}
if (u.Units.Value() > uint64(validationConfig.MaxUnitCPU)) || (u.Units.Value() < uint64(validationConfig.MinUnitCPU)) {
return sdk.Int{}, errors.Errorf("error: invalid unit CPU (%v > %v > %v fails)",
validationConfig.MaxUnitCPU, u.Units.Value(), validationConfig.MinUnitCPU)
}
return u.Units.Val, nil
}
func validateMemory(u *types.Memory) (sdk.Int, error) {
if u == nil {
return sdk.Int{}, errors.Errorf("error: invalid unit memory, cannot be nil")
}
if (u.Quantity.Value() > validationConfig.MaxUnitMemory) || (u.Quantity.Value() < validationConfig.MinUnitMemory) {
return sdk.Int{}, errors.Errorf("error: invalid unit memory (%v > %v > %v fails)",
validationConfig.MaxUnitMemory, u.Quantity.Value(), validationConfig.MinUnitMemory)
}
return u.Quantity.Val, nil
}
func validateStorage(u types.Volumes) ([]sdk.Int, error) {
if u == nil {
return nil, errors.Errorf("error: invalid unit storage, cannot be nil")
}
storage := make([]sdk.Int, 0, len(u))
for i := range u {
if (u[i].Quantity.Value() > validationConfig.MaxUnitStorage) || (u[i].Quantity.Value() < validationConfig.MinUnitStorage) {
return nil, errors.Errorf("error: invalid unit storage (%v > %v > %v fails)",
validationConfig.MaxUnitStorage, u[i].Quantity.Value(), validationConfig.MinUnitStorage)
}
storage = append(storage, u[i].Quantity.Val)
}
return storage, nil
}
type resourceLimits struct {
cpu sdk.Int
memory sdk.Int
storage []sdk.Int
}
func newLimits() resourceLimits {
return resourceLimits{
cpu: sdk.ZeroInt(),
memory: sdk.ZeroInt(),
}
}
func (u *resourceLimits) add(rhs resourceLimits) {
u.cpu = u.cpu.Add(rhs.cpu)
u.memory = u.memory.Add(rhs.memory)
// u.storage = u.storage.Add(rhs.storage)
}
func (u *resourceLimits) mul(count uint32) {
u.cpu = u.cpu.MulRaw(int64(count))
u.memory = u.memory.MulRaw(int64(count))
for i := range u.storage {
u.storage[i] = u.storage[i].MulRaw(int64(count))
}
}