config

type Config ¶

type Config struct {
	Strategies []Strategy
}

Config contains the configuration for the application.

func (config Config) Validate() error

type HealthCriterion ¶

type HealthCriterion struct {
	Metric     MetricsCheck
	Percentile float64
	Threshold  float64
}

HealthCriterion is a metrics threshold that should be met to consider a candidate healthy.

type MetricsCheck ¶

type MetricsCheck string

MetricsCheck is the metrics check type.

const (
	RequestCountMetricsCheck MetricsCheck = "request-count"
	LatencyMetricsCheck      MetricsCheck = "request-latency"
	ErrorRateMetricsCheck    MetricsCheck = "error-rate-percent"
)

type Strategy ¶

type Strategy struct {
	Target              Target
	Steps               []int64
	HealthCriteria      []HealthCriterion
	HealthCheckOffset   time.Duration
	TimeBetweenRollouts time.Duration
}

Strategy is a rollout configuration for the targeted services.

func NewStrategy(target Target, steps []int64, healthOffset, timeBetweenRollouts time.Duration, healthCriteria []HealthCriterion) Strategy

func (strategy Strategy) Validate() error

type Target ¶

type Target struct {
	Project       string
	Regions       []string
	LabelSelector string
}

Target is the configuration to filter services.

A target might have the following form ¶

{
  "project": "myproject"
  "regions": [us-east1, us-central1]
  "labelSelector": "team=backend"
}

func NewTarget(project string, regions []string, labelSelector string) Target