migrationgate

package

v0.9.2 Latest Latest Go to latest Published: Nov 6, 2026 License: Apache-2.0 Imports: 3 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/GLINCKER/levelrail

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Documentation ¶

Overview ¶

Package migrationgate decides whether the old instance is safe to delete. It is pure: callers pass in what the migration job recorded and what the live probes saw, and a gate only passes on evidence, never on absence of failure.

Constants ¶

View Source

const (
	GateStaged    = "staged"
	GateLeftovers = "leftovers"
	GateVolumes   = "volumes"
	GateDatabases = "databases"
	GateRouted    = "routed"
	GateDNS       = "dns"
	GateResponds  = "responds"
	GateBackup    = "source-backup"
	GateTraffic   = "traffic-cycle"
)

Gate IDs, in the order they are evaluated. The last three double as the acknowledgment IDs a caller passes in Input.Acknowledged.

Variables ¶

This section is empty.

Functions ¶

func Fallback ¶

func Fallback() []string

Fallback is the rollback guidance shown next to the checklist.

Types ¶

type Database ¶

type Database struct {
	Name string
	// Status is the data copy status: verified, copying, failed, pending, or empty when never started.
	Status     string
	Mismatched int
}

Database is one source database the selected apps use and the state of its data copy.

type Gate ¶

type Gate struct {
	ID     string   `json:"id"`
	Status Status   `json:"status"`
	Detail string   `json:"detail"`
	Open   []string `json:"open,omitempty"`
	Fix    string   `json:"fix,omitempty"`
}

Gate is one line of the checklist.

type Input ¶

type Input struct {
	Items        []Item
	Databases    []Database
	Probes       []Probe
	Acknowledged []string
}

Input is everything the gates look at. Nil Probes means no probe ran yet.

type Item ¶

type Item struct {
	Name    string
	State   string
	Domains []string
	Volumes []Volume
	// Leftover is true for an unsupported resource the importer cannot move.
	Leftover bool
}

Item uses the import state strings of the job: verified and routed count as proven here.

type Probe ¶

type Probe struct {
	Domain   string
	DNS      bool
	Responds bool
}

Probe is one live result for a domain.

type Report ¶

type Report struct {
	Safe     bool           `json:"safe_to_delete"`
	Gates    []Gate         `json:"gates"`
	Counts   map[Status]int `json:"counts"`
	Fallback []string       `json:"fallback"`
}

Report is the checklist. Safe is true only when every gate passed.

func Evaluate ¶

func Evaluate(in Input) Report

Evaluate runs every gate.

type Status ¶

type Status string

Status is the outcome of one gate.

const (
	Pass Status = "pass"
	Fail Status = "fail"
	// Pending means the evidence has not been gathered yet, so the gate cannot pass.
	Pending Status = "pending"
	// Manual is a step only a person can confirm.
	Manual Status = "manual"
)

Gate outcomes.

type Volume ¶

type Volume struct {
	Name   string
	Copied bool
}

Volume is one persistent mount and whether its copy completed.

Source Files ¶

View all Source files

gate.go

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