config

type FS interface {
	// Init initializes FS.
	Init() error

	// String must return human-readable representation of FS.
	String() string

	// List returns the list of file names which will be read via Read fn
	List() ([]string, error)

	// Read returns a list of read files in form of a map
	// where key is a file name and value is a content of read file.
	// Read must be called only after the successful Init call.
	Read(files []string) (map[string][]byte, error)
}

type Group struct {
	Type       Type `yaml:"type,omitempty"`
	File       string
	Name       string              `yaml:"name"`
	Interval   *promutils.Duration `yaml:"interval,omitempty"`
	EvalOffset *promutils.Duration `yaml:"eval_offset,omitempty"`
	// EvalDelay will adjust the `time` parameter of rule evaluation requests to compensate intentional query delay from datasource.
	// see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5155
	EvalDelay   *promutils.Duration `yaml:"eval_delay,omitempty"`
	Limit       int                 `yaml:"limit,omitempty"`
	Rules       []Rule              `yaml:"rules"`
	Concurrency int                 `yaml:"concurrency"`
	// Labels is a set of label value pairs, that will be added to every rule.
	// It has priority over the external labels.
	Labels map[string]string `yaml:"labels"`
	// Checksum stores the hash of yaml definition for this group.
	// May be used to detect any changes like rules re-ordering etc.
	Checksum string
	// Optional HTTP URL parameters added to each rule request
	Params url.Values `yaml:"params"`
	// Headers contains optional HTTP headers added to each rule request
	Headers []Header `yaml:"headers,omitempty"`
	// NotifierHeaders contains optional HTTP headers sent to notifiers for generated notifications
	NotifierHeaders []Header `yaml:"notifier_headers,omitempty"`
	// EvalAlignment will make the timestamp of group query requests be aligned with interval
	EvalAlignment *bool `yaml:"eval_alignment,omitempty"`
	// Catches all undefined fields and must be empty after parsing.
	XXX map[string]interface{} `yaml:",inline"`
}

type Header struct {
	Key   string
	Value string
}

type Rule struct {
	ID     uint64
	Record string              `yaml:"record,omitempty"`
	Alert  string              `yaml:"alert,omitempty"`
	Expr   string              `yaml:"expr"`
	For    *promutils.Duration `yaml:"for,omitempty"`
	// Alert will continue firing for this long even when the alerting expression no longer has results.
	KeepFiringFor *promutils.Duration `yaml:"keep_firing_for,omitempty"`
	Labels        map[string]string   `yaml:"labels,omitempty"`
	Annotations   map[string]string   `yaml:"annotations,omitempty"`
	Debug         bool                `yaml:"debug,omitempty"`
	// UpdateEntriesLimit defines max number of rule's state updates stored in memory.
	// Overrides `-rule.updateEntriesLimit`.
	UpdateEntriesLimit *int `yaml:"update_entries_limit,omitempty"`

	// Catches all undefined fields and must be empty after parsing.
	XXX map[string]interface{} `yaml:",inline"`
}

type Type struct {
	Name string
}

type ValidateTplFn func(annotations map[string]string) error