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tailscale/k8s-operator/conditions.go

85 lines
3.1 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
//go:build !plan9
package kube
import (
"slices"
"time"
"go.uber.org/zap"
xslices "golang.org/x/exp/slices"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
tsapi "tailscale.com/k8s-operator/apis/v1alpha1"
"tailscale.com/tstime"
)
// SetConnectorCondition ensures that Connector status has a condition with the
// given attributes. LastTransitionTime gets set every time condition's status
// changes.
func SetConnectorCondition(cn *tsapi.Connector, conditionType tsapi.ConnectorConditionType, status metav1.ConditionStatus, reason, message string, gen int64, clock tstime.Clock, logger *zap.SugaredLogger) {
conds := updateCondition(cn.Status.Conditions, conditionType, status, reason, message, gen, clock, logger)
cn.Status.Conditions = conds
}
// RemoveConnectorCondition will remove condition of the given type.
func RemoveConnectorCondition(conn *tsapi.Connector, conditionType tsapi.ConnectorConditionType) {
conn.Status.Conditions = slices.DeleteFunc(conn.Status.Conditions, func(cond tsapi.ConnectorCondition) bool {
return cond.Type == conditionType
})
}
// SetProxyClassCondition ensures that ProxyClass status has a condition with the
// given attributes. LastTransitionTime gets set every time condition's status
// changes.
func SetProxyClassCondition(pc *tsapi.ProxyClass, conditionType tsapi.ConnectorConditionType, status metav1.ConditionStatus, reason, message string, gen int64, clock tstime.Clock, logger *zap.SugaredLogger) {
conds := updateCondition(pc.Status.Conditions, conditionType, status, reason, message, gen, clock, logger)
pc.Status.Conditions = conds
}
func updateCondition(conds []tsapi.ConnectorCondition, conditionType tsapi.ConnectorConditionType, status metav1.ConditionStatus, reason, message string, gen int64, clock tstime.Clock, logger *zap.SugaredLogger) []tsapi.ConnectorCondition {
newCondition := tsapi.ConnectorCondition{
Type: conditionType,
Status: status,
Reason: reason,
Message: message,
ObservedGeneration: gen,
}
nowTime := metav1.NewTime(clock.Now().Truncate(time.Second))
newCondition.LastTransitionTime = &nowTime
idx := xslices.IndexFunc(conds, func(cond tsapi.ConnectorCondition) bool {
return cond.Type == conditionType
})
if idx == -1 {
conds = append(conds, newCondition)
return conds
}
cond := conds[idx] // update the existing condition
// If this update doesn't contain a state transition, we don't update
// the conditions LastTransitionTime to Now().
if cond.Status == status {
newCondition.LastTransitionTime = cond.LastTransitionTime
} else {
logger.Infof("Status change for condition %s from %s to %s", conditionType, cond.Status, status)
}
conds[idx] = newCondition
return conds
}
func ProxyClassIsReady(pc *tsapi.ProxyClass) bool {
idx := xslices.IndexFunc(pc.Status.Conditions, func(cond tsapi.ConnectorCondition) bool {
return cond.Type == tsapi.ProxyClassready
})
if idx == -1 {
return false
}
cond := pc.Status.Conditions[idx]
return cond.Status == metav1.ConditionTrue && cond.ObservedGeneration == pc.Generation
}