hostresource

package

v0.4.23 Latest Latest Go to latest Published: Oct 8, 2026 License: Apache-2.0 Imports: 8 Imported by: 0

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Valid go.mod file
Redistributable license
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Stable version
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Repository

github.com/mcpdev80/baseharbor

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Documentation ¶

Index ¶

Constants
type ComponentEstimate
type Confidence
type Decision
type MemoryEstimate
type MemoryEvidence
- func ReadLinux() (MemoryEvidence, error)
type Policy
- func DefaultPolicy() Policy
type Pressure
type Result
- func Evaluate(evidence MemoryEvidence, estimate MemoryEstimate, policy Policy) Result

Constants ¶

View Source

const (
	MiB uint64 = 1 << 20
)

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type ComponentEstimate ¶

type ComponentEstimate struct {
	Name           string     `json:"name"`
	MinimumBytes   uint64     `json:"minimum_bytes,omitempty"`
	EstimatedBytes uint64     `json:"estimated_bytes,omitempty"`
	Confidence     Confidence `json:"confidence"`
	Source         string     `json:"source,omitempty"`
}

type Confidence ¶

type Confidence string

const (
	ConfidenceExplicit      Confidence = "EXPLICIT"
	ConfidenceKnownBaseline Confidence = "KNOWN_BASELINE"
	ConfidenceEstimated     Confidence = "ESTIMATED"
	ConfidenceUnknown       Confidence = "UNKNOWN"
)

type Decision ¶

type Decision string

const (
	DecisionSafe   Decision = "SAFE"
	DecisionTight  Decision = "TIGHT"
	DecisionUnsafe Decision = "UNSAFE"
)

type MemoryEstimate ¶

type MemoryEstimate struct {
	MinimumBytes   uint64              `json:"minimum_bytes"`
	EstimatedBytes uint64              `json:"estimated_bytes"`
	Confidence     Confidence          `json:"confidence"`
	Components     []ComponentEstimate `json:"components,omitempty"`
}

func EstimateApplication ¶

func EstimateApplication(m application.Manifest) MemoryEstimate

func EstimateControlPlane ¶

func EstimateControlPlane(ha bool) (MemoryEstimate, error)

EstimateControlPlane accounts for every service in the shipped HA topology. These per-role planning budgets are estimates, not measured RSS baselines.

func EstimateCore ¶ added in v0.4.23

func EstimateCore(ha bool, existing map[string]bool) (MemoryEstimate, error)

EstimateCore preserves existing SQL/Secrets planning estimates. Identity is explicitly UNKNOWN until the complete shipped realization is measured (#549).

func Sum ¶

func Sum(components []ComponentEstimate) MemoryEstimate

type MemoryEvidence ¶

type MemoryEvidence struct {
	TotalBytes     uint64   `json:"total_bytes"`
	AvailableBytes uint64   `json:"available_bytes"`
	SwapTotalBytes uint64   `json:"swap_total_bytes"`
	SwapFreeBytes  uint64   `json:"swap_free_bytes"`
	Pressure       Pressure `json:"pressure"`
}

func ReadLinux ¶

func ReadLinux() (MemoryEvidence, error)

type Policy ¶

type Policy struct {
	SafetyMarginBytes  uint64
	PressureSomeAvg300 float64
	PressureFullAvg300 float64
	SwapFreeRatioTight float64
}

func DefaultPolicy ¶

func DefaultPolicy() Policy

type Pressure ¶

type Pressure struct {
	Available  bool    `json:"available"`
	SomeAvg300 float64 `json:"some_avg300,omitempty"`
	FullAvg300 float64 `json:"full_avg300,omitempty"`
}

type Result ¶

type Result struct {
	Evidence MemoryEvidence `json:"evidence"`
	Estimate MemoryEstimate `json:"estimate"`
	Decision Decision       `json:"decision"`
	Reasons  []string       `json:"reasons,omitempty"`
}

func Evaluate ¶

func Evaluate(evidence MemoryEvidence, estimate MemoryEstimate, policy Policy) Result

Source Files ¶

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