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Merge pull request #218 from daviddelucca/feat/flagger-canary-support
feat: add flagger canary support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| package canary | ||
|
|
||
| import ( | ||
| "context" | ||
| "sync" | ||
|
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| "github.com/werf/kubedog/pkg/tracker" | ||
| "k8s.io/client-go/kubernetes" | ||
|
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| watchtools "k8s.io/client-go/tools/watch" | ||
| ) | ||
|
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| type Feed interface { | ||
| OnAdded(func() error) | ||
| OnSucceeded(func() error) | ||
| OnFailed(func(reason string) error) | ||
| OnEventMsg(func(msg string) error) | ||
| OnStatus(func(CanaryStatus) error) | ||
|
|
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| GetStatus() CanaryStatus | ||
| Track(name, namespace string, kube kubernetes.Interface, opts tracker.Options) error | ||
| } | ||
|
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| func NewFeed() Feed { | ||
| return &feed{} | ||
| } | ||
|
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| type feed struct { | ||
| OnAddedFunc func() error | ||
| OnSucceededFunc func() error | ||
| OnFailedFunc func(string) error | ||
| OnEventMsgFunc func(string) error | ||
| OnStatusFunc func(CanaryStatus) error | ||
|
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| statusMux sync.Mutex | ||
| status CanaryStatus | ||
| } | ||
|
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| func (f *feed) OnAdded(function func() error) { | ||
| f.OnAddedFunc = function | ||
| } | ||
| func (f *feed) OnSucceeded(function func() error) { | ||
| f.OnSucceededFunc = function | ||
| } | ||
| func (f *feed) OnFailed(function func(string) error) { | ||
| f.OnFailedFunc = function | ||
| } | ||
| func (f *feed) OnEventMsg(function func(string) error) { | ||
| f.OnEventMsgFunc = function | ||
| } | ||
| func (f *feed) OnStatus(function func(CanaryStatus) error) { | ||
| f.OnStatusFunc = function | ||
| } | ||
|
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| func (f *feed) Track(name, namespace string, kube kubernetes.Interface, opts tracker.Options) error { | ||
| errorChan := make(chan error, 0) | ||
| doneChan := make(chan struct{}, 0) | ||
|
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| parentContext := opts.ParentContext | ||
| if parentContext == nil { | ||
| parentContext = context.Background() | ||
| } | ||
| ctx, cancel := watchtools.ContextWithOptionalTimeout(parentContext, opts.Timeout) | ||
| defer cancel() | ||
|
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| canary := NewTracker(name, namespace, kube, opts) | ||
|
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| go func() { | ||
| err := canary.Track(ctx) | ||
| if err != nil { | ||
| errorChan <- err | ||
| } else { | ||
| doneChan <- struct{}{} | ||
| } | ||
| }() | ||
|
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| for { | ||
| select { | ||
| case status := <-canary.Added: | ||
| f.setStatus(status) | ||
|
|
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| if f.OnAddedFunc != nil { | ||
| err := f.OnAddedFunc() | ||
| if err == tracker.StopTrack { | ||
| return nil | ||
| } | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| case status := <-canary.Succeeded: | ||
| f.setStatus(status) | ||
|
|
||
| if f.OnSucceededFunc != nil { | ||
| err := f.OnSucceededFunc() | ||
| if err == tracker.StopTrack { | ||
| return nil | ||
| } | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| case status := <-canary.Failed: | ||
| f.setStatus(status) | ||
|
|
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| if f.OnFailedFunc != nil { | ||
| err := f.OnFailedFunc(status.FailedReason) | ||
| if err == tracker.StopTrack { | ||
| return nil | ||
| } | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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| case msg := <-canary.EventMsg: | ||
| if f.OnEventMsgFunc != nil { | ||
| err := f.OnEventMsgFunc(msg) | ||
| if err == tracker.StopTrack { | ||
| return nil | ||
| } | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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| case status := <-canary.Status: | ||
| f.setStatus(status) | ||
|
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| if f.OnStatusFunc != nil { | ||
| err := f.OnStatusFunc(status) | ||
| if err == tracker.StopTrack { | ||
| return nil | ||
| } | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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||
| case err := <-errorChan: | ||
| return err | ||
| case <-doneChan: | ||
| return nil | ||
| } | ||
| } | ||
| } | ||
|
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| func (f *feed) setStatus(status CanaryStatus) { | ||
| f.statusMux.Lock() | ||
| defer f.statusMux.Unlock() | ||
|
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| if status.StatusGeneration > f.status.StatusGeneration { | ||
| f.status = status | ||
| } | ||
| } | ||
|
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| func (f *feed) GetStatus() CanaryStatus { | ||
| f.statusMux.Lock() | ||
| defer f.statusMux.Unlock() | ||
| return f.status | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| package canary | ||
|
|
||
| import ( | ||
| v1beta1 "github.com/fluxcd/flagger/pkg/apis/flagger/v1beta1" | ||
| "github.com/werf/kubedog/pkg/tracker/indicators" | ||
| "github.com/werf/kubedog/pkg/utils" | ||
| ) | ||
|
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| type CanaryStatus struct { | ||
| v1beta1.CanaryStatus | ||
|
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| StatusGeneration uint64 | ||
|
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| StatusIndicator *indicators.StringEqualConditionIndicator | ||
|
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| Duration string | ||
| Age string | ||
|
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| IsSucceeded bool | ||
| IsFailed bool | ||
| FailedReason string | ||
| } | ||
|
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| func NewCanaryStatus(object *v1beta1.Canary, statusGeneration uint64, isTrackerFailed bool, trackerFailedReason string, canariesStatuses map[string]v1beta1.CanaryStatus) CanaryStatus { | ||
| res := CanaryStatus{ | ||
| CanaryStatus: object.Status, | ||
| StatusGeneration: statusGeneration, | ||
| StatusIndicator: &indicators.StringEqualConditionIndicator{}, | ||
| Age: utils.TranslateTimestampSince(object.CreationTimestamp), | ||
| } | ||
|
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| switch object.Status.Phase { | ||
| case v1beta1.CanaryPhaseInitialized, v1beta1.CanaryPhaseSucceeded: | ||
| res.IsSucceeded = true | ||
| case v1beta1.CanaryPhaseFailed: | ||
| if !res.IsFailed { | ||
| errorMessage := "Failed - " | ||
| for _, condition := range object.Status.Conditions { | ||
| errorMessage += condition.Message | ||
| } | ||
| res.IsFailed = true | ||
| res.FailedReason = errorMessage | ||
| } | ||
| default: | ||
| res.StatusIndicator.Value = string(object.Status.Phase) | ||
| } | ||
|
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| if !res.IsSucceeded && !res.IsFailed { | ||
| res.IsFailed = isTrackerFailed | ||
| res.FailedReason = trackerFailedReason | ||
| } | ||
|
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| return res | ||
| } |
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