grafana/pkg/services/featuremgmt/features.go
Artur Wierzbicki 13650f3dc0
Code: codeownership for feature toggles (#64266)
* ownership for feature toggles v2

* add traceqlSearch

* MT -> app platform

* assign publicdashboards

---------

Co-authored-by: Ryan McKinley <ryantxu@gmail.com>
2023-03-07 20:04:20 +04:00

100 lines
2.5 KiB
Go

package featuremgmt
import (
"bytes"
"encoding/json"
)
type FeatureToggles interface {
IsEnabled(flag string) bool
}
// FeatureFlagState indicates the quality level
type FeatureFlagState int
const (
// FeatureStateUnknown indicates that no state is specified
FeatureStateUnknown FeatureFlagState = iota
// FeatureStateAlpha the feature is in active development and may change at any time
FeatureStateAlpha
// FeatureStateBeta the feature is still in development, but settings will have migrations
FeatureStateBeta
// FeatureStateStable this is a stable feature
FeatureStateStable
// FeatureStateDeprecated the feature will be removed in the future
FeatureStateDeprecated
)
func (s FeatureFlagState) String() string {
switch s {
case FeatureStateAlpha:
return "alpha"
case FeatureStateBeta:
return "beta"
case FeatureStateStable:
return "stable"
case FeatureStateDeprecated:
return "deprecated"
case FeatureStateUnknown:
}
return "unknown"
}
// MarshalJSON marshals the enum as a quoted json string
func (s FeatureFlagState) MarshalJSON() ([]byte, error) {
buffer := bytes.NewBufferString(`"`)
buffer.WriteString(s.String())
buffer.WriteString(`"`)
return buffer.Bytes(), nil
}
// UnmarshalJSON unmarshals a quoted json string to the enum value
func (s *FeatureFlagState) UnmarshalJSON(b []byte) error {
var j string
err := json.Unmarshal(b, &j)
if err != nil {
return err
}
switch j {
case "alpha":
*s = FeatureStateAlpha
case "beta":
*s = FeatureStateBeta
case "stable":
*s = FeatureStateStable
case "deprecated":
*s = FeatureStateDeprecated
default:
*s = FeatureStateUnknown
}
return nil
}
type FeatureFlag struct {
Name string `json:"name" yaml:"name"` // Unique name
Description string `json:"description"`
State FeatureFlagState `json:"state,omitempty"`
DocsURL string `json:"docsURL,omitempty"`
// Owner person or team that owns this feature flag
Owner codeowner `json:"-"`
// CEL-GO expression. Using the value "true" will mean this is on by default
Expression string `json:"expression,omitempty"`
// Special behavior flags
RequiresDevMode bool `json:"requiresDevMode,omitempty"` // can not be enabled in production
RequiresRestart bool `json:"requiresRestart,omitempty"` // The server must be initialized with the value
RequiresLicense bool `json:"requiresLicense,omitempty"` // Must be enabled in the license
FrontendOnly bool `json:"frontend,omitempty"` // change is only seen in the frontend
}