apply

type Runner struct {
	// Services lists the configured provider services (with staged changes) in
	// stable apply order, each carrying its own store.
	Services []ServiceApply
	// ProviderLabel is the human-readable provider name (e.g. "AWS").
	ProviderLabel   string
	Stdout          io.Writer
	Stderr          io.Writer
	IgnoreConflicts bool
}

type ServiceApply struct {
	Service staging.Service
	// Store is this service's own working store (App Configuration and Key Vault
	// live in separate buckets).
	Store store.ReadWriteOperator
	// Strategy is the default (namespace-agnostic) apply strategy.
	Strategy staging.ApplyStrategy
	// StrategyFor, when set, resolves a strategy per namespace so each App
	// Configuration entry applies under its own namespace. Nil elsewhere.
	StrategyFor func(namespace string) (staging.ApplyStrategy, error)
	// Entries/Tags are this service's staged changes, pre-listed from its store,
	// keyed by the (name, namespace) EntryKey.
	Entries map[staging.EntryKey]staging.Entry
	Tags    map[staging.EntryKey]staging.TagEntry
}