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118 changes: 118 additions & 0 deletions FEATURE_DOCUMENTATION.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,118 @@
# Canary Batch Timing Feature

## Overview

This feature adds the ability to track start and end times for every canary batch/step in Rollout resources. This addresses issue #112 where users previously could not know the start and end times for each canary batch.

## Changes Made

### 1. API Changes

#### BatchReleaseCanaryStatus (v1alpha1 and v1beta1)
Added `BatchStartTime` field to track when each batch starts processing:

```go
type BatchReleaseCanaryStatus struct {
// ... existing fields ...

// BatchStartTime is the start timestamp of the current batch.
// This field is updated when a batch starts processing.
// +optional
BatchStartTime *metav1.Time `json:"batchStartTime,omitempty"`

// BatchReadyTime is the ready timestamp of the current batch or the last batch.
// This field is updated once a batch ready, and the batches[x].pausedSeconds
// relies on this field to calculate the real-time duration.
BatchReadyTime *metav1.Time `json:"batchReadyTime,omitempty"`

// ... other fields ...
}
```

#### Rollout CanaryStatus (v1beta1)
Added timing fields to track step timing information:

```go
type CanaryStatus struct {
// ... existing fields ...

// CurrentStepStartTime is the start timestamp of the current canary step/batch.
// This field is updated when a step starts processing.
// +optional
CurrentStepStartTime *metav1.Time `json:"currentStepStartTime,omitempty"`

// CurrentStepEndTime is the end timestamp of the current canary step/batch.
// This field is updated when a step completes.
// +optional
CurrentStepEndTime *metav1.Time `json:"currentStepEndTime,omitempty"`

// ... other fields ...
}
```

### 2. Controller Logic Changes

#### BatchRelease Executor
- **Setting Start Time**: `BatchStartTime` is set when a batch first enters `UpgradingBatchState`
- **Resetting Start Time**: `BatchStartTime` is reset to `nil` when:
- Moving to the next batch
- Restarting a batch
- Recalculating due to plan changes

#### Rollout Controller
- **Syncing Timing**: The `syncBatchRelease` function now syncs timing information from `BatchRelease` to `Rollout` status
- **Status Updates**: `CurrentStepStartTime` and `CurrentStepEndTime` are updated based on the corresponding `BatchRelease` timing

### 3. Conversion Functions
Updated conversion functions in `api/v1alpha1/conversion.go` to properly handle the new `BatchStartTime` field when converting between API versions.

## Usage

### Viewing Timing Information

You can now view timing information for canary batches:

```bash
# View BatchRelease timing
kubectl get batchrelease <name> -o yaml

# View Rollout timing
kubectl get rollout <name> -o yaml
```

### Example Output

```yaml
status:
canaryStatus:
currentBatch: 1
batchState: "UpgradingBatchState"
batchStartTime: "2023-01-06T10:30:00Z"
batchReadyTime: "2023-01-06T10:35:00Z"
updatedReplicas: 2
updatedReadyReplicas: 2
```

## Benefits

1. **Visibility**: Users can now track how long each canary batch takes to complete
2. **Monitoring**: Enables better monitoring and alerting based on batch timing
3. **Debugging**: Helps identify performance issues or bottlenecks in specific batches
4. **Compliance**: Provides audit trail for deployment timing

## Backward Compatibility

- The new fields are optional (`+optional` tag)
- Existing Rollouts and BatchReleases will continue to work without the new timing fields
- The fields will be populated for new deployments or when existing resources are updated

## Testing

The feature has been tested with:
- Unit tests for the batchrelease controller
- API validation and conversion tests
- Build verification to ensure no compilation errors

## Related Issues

- Fixes #112: [Feature] need record the starttime and endtime for every canary batch in Rollout
4 changes: 4 additions & 0 deletions api/v1alpha1/batchrelease_plan_types.go
Original file line number Diff line number Diff line change
Expand Up @@ -124,6 +124,10 @@ type BatchReleaseCanaryStatus struct {
CurrentBatchState BatchReleaseBatchStateType `json:"batchState,omitempty"`
// The current batch the rollout is working on/blocked, it starts from 0
CurrentBatch int32 `json:"currentBatch"`
// BatchStartTime is the start timestamp of the current batch.
// This field is updated when a batch starts processing.
// +optional
BatchStartTime *metav1.Time `json:"batchStartTime,omitempty"`
// BatchReadyTime is the ready timestamp of the current batch or the last batch.
// This field is updated once a batch ready, and the batches[x].pausedSeconds
// relies on this field to calculate the real-time duration.
Expand Down
2 changes: 2 additions & 0 deletions api/v1alpha1/conversion.go
Original file line number Diff line number Diff line change
Expand Up @@ -387,6 +387,7 @@ func (src *BatchRelease) ConvertTo(dst conversion.Hub) error {
obj.Status.CanaryStatus = v1beta1.BatchReleaseCanaryStatus{
CurrentBatchState: v1beta1.BatchReleaseBatchStateType(src.Status.CanaryStatus.CurrentBatchState),
CurrentBatch: src.Status.CanaryStatus.CurrentBatch,
BatchStartTime: src.Status.CanaryStatus.BatchStartTime,
BatchReadyTime: src.Status.CanaryStatus.BatchReadyTime,
UpdatedReplicas: src.Status.CanaryStatus.UpdatedReplicas,
UpdatedReadyReplicas: src.Status.CanaryStatus.UpdatedReadyReplicas,
Expand Down Expand Up @@ -466,6 +467,7 @@ func (dst *BatchRelease) ConvertFrom(src conversion.Hub) error {
dst.Status.CanaryStatus = BatchReleaseCanaryStatus{
CurrentBatchState: BatchReleaseBatchStateType(srcV1beta1.Status.CanaryStatus.CurrentBatchState),
CurrentBatch: srcV1beta1.Status.CanaryStatus.CurrentBatch,
BatchStartTime: srcV1beta1.Status.CanaryStatus.BatchStartTime,
BatchReadyTime: srcV1beta1.Status.CanaryStatus.BatchReadyTime,
UpdatedReplicas: srcV1beta1.Status.CanaryStatus.UpdatedReplicas,
UpdatedReadyReplicas: srcV1beta1.Status.CanaryStatus.UpdatedReadyReplicas,
Expand Down
6 changes: 5 additions & 1 deletion api/v1alpha1/zz_generated.deepcopy.go

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

4 changes: 4 additions & 0 deletions api/v1beta1/batchrelease_plan_types.go
Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,10 @@ type BatchReleaseCanaryStatus struct {
CurrentBatchState BatchReleaseBatchStateType `json:"batchState,omitempty"`
// The current batch the rollout is working on/blocked, it starts from 0
CurrentBatch int32 `json:"currentBatch"`
// BatchStartTime is the start timestamp of the current batch.
// This field is updated when a batch starts processing.
// +optional
BatchStartTime *metav1.Time `json:"batchStartTime,omitempty"`
// BatchReadyTime is the ready timestamp of the current batch or the last batch.
// This field is updated once a batch ready, and the batches[x].pausedSeconds
// relies on this field to calculate the real-time duration.
Expand Down
8 changes: 8 additions & 0 deletions api/v1beta1/rollout_types.go
Original file line number Diff line number Diff line change
Expand Up @@ -445,6 +445,14 @@ type CanaryStatus struct {
CanaryReplicas int32 `json:"canaryReplicas"`
// CanaryReadyReplicas the numbers of ready canary revision pods
CanaryReadyReplicas int32 `json:"canaryReadyReplicas"`
// CurrentStepStartTime is the start timestamp of the current canary step/batch.
// This field is updated when a step starts processing.
// +optional
CurrentStepStartTime *metav1.Time `json:"currentStepStartTime,omitempty"`
// CurrentStepEndTime is the end timestamp of the current canary step/batch.
// This field is updated when a step completes.
// +optional
CurrentStepEndTime *metav1.Time `json:"currentStepEndTime,omitempty"`
}

// BlueGreenStatus status fields that only pertain to the blueGreen rollout
Expand Down
14 changes: 13 additions & 1 deletion api/v1beta1/zz_generated.deepcopy.go

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

12 changes: 12 additions & 0 deletions pkg/controller/batchrelease/batchrelease_executor.go
Original file line number Diff line number Diff line change
Expand Up @@ -142,9 +142,19 @@ func (r *Executor) progressBatches(release *v1beta1.BatchRelease, newStatus *v1b
default:
// for compatibility. if it is an unknown state, should start from beginning.
newStatus.CanaryStatus.CurrentBatchState = v1beta1.UpgradingBatchState
// Set batch start time when entering a new batch
if newStatus.CanaryStatus.BatchStartTime == nil {
now := metav1.Now()
newStatus.CanaryStatus.BatchStartTime = &now
}
fallthrough

case v1beta1.UpgradingBatchState:
// Set batch start time when entering upgrading state for the first time
if newStatus.CanaryStatus.BatchStartTime == nil {
now := metav1.Now()
newStatus.CanaryStatus.BatchStartTime = &now
}
// modify workload replicas/partition based on release plan in this state.
err = workloadController.UpgradeBatch()
switch {
Expand Down Expand Up @@ -257,6 +267,8 @@ func (r *Executor) moveToNextBatch(release *v1beta1.BatchRelease, status *v1beta
}
if release.Spec.ReleasePlan.BatchPartition == nil || *release.Spec.ReleasePlan.BatchPartition > status.CanaryStatus.CurrentBatch {
status.CanaryStatus.CurrentBatch++
// Reset batch start time for the new batch
status.CanaryStatus.BatchStartTime = nil
}
status.CanaryStatus.CurrentBatchState = v1beta1.UpgradingBatchState
klog.V(3).Infof("BatchRelease(%v) finished one batch, release current batch: %v", klog.KObj(release), status.CanaryStatus.CurrentBatch)
Expand Down
3 changes: 3 additions & 0 deletions pkg/controller/batchrelease/batchrelease_status.go
Original file line number Diff line number Diff line change
Expand Up @@ -210,11 +210,13 @@ func isRollbackInBatchSatisfied(workloadInfo *util.WorkloadInfo, release *v1beta
func signalRePrepareRollback(newStatus *v1beta1.BatchReleaseStatus) {
newStatus.Phase = v1beta1.RolloutPhasePreparing
newStatus.CanaryStatus.BatchReadyTime = nil
newStatus.CanaryStatus.BatchStartTime = nil
newStatus.CanaryStatus.CurrentBatchState = v1beta1.UpgradingBatchState
}

func signalRestartBatch(status *v1beta1.BatchReleaseStatus) {
status.CanaryStatus.BatchReadyTime = nil
status.CanaryStatus.BatchStartTime = nil
status.CanaryStatus.CurrentBatchState = v1beta1.UpgradingBatchState
}

Expand Down Expand Up @@ -243,6 +245,7 @@ func signalRecalculate(release *v1beta1.BatchRelease, newStatus *v1beta1.BatchRe
klog.Infof("BatchRelease(%v) canary batch changed from %v to %v when the release plan changed, observed-rollout-id: %s, current-rollout-id: %s",
client.ObjectKeyFromObject(release), newStatus.CanaryStatus.CurrentBatch, currentBatch, observedRolloutID, release.Spec.ReleasePlan.RolloutID)
newStatus.CanaryStatus.BatchReadyTime = nil
newStatus.CanaryStatus.BatchStartTime = nil
newStatus.CanaryStatus.CurrentBatch = currentBatch
newStatus.ObservedRolloutID = release.Spec.ReleasePlan.RolloutID
newStatus.CanaryStatus.CurrentBatchState = v1beta1.UpgradingBatchState
Expand Down
3 changes: 3 additions & 0 deletions pkg/controller/rollout/rollout_canary.go
Original file line number Diff line number Diff line change
Expand Up @@ -452,6 +452,9 @@ func (m *canaryReleaseManager) syncBatchRelease(br *v1beta1.BatchRelease, canary
// sync from BatchRelease status to Rollout canaryStatus
canaryStatus.CanaryReplicas = br.Status.CanaryStatus.UpdatedReplicas
canaryStatus.CanaryReadyReplicas = br.Status.CanaryStatus.UpdatedReadyReplicas
// Sync timing information from BatchRelease to Rollout
canaryStatus.CurrentStepStartTime = br.Status.CanaryStatus.BatchStartTime
canaryStatus.CurrentStepEndTime = br.Status.CanaryStatus.BatchReadyTime
// Do not remove this line currently, otherwise, users will be not able to judge whether the BatchRelease works
// in the scene where only rollout-id changed.
// TODO: optimize the logic to better understand
Expand Down
4 changes: 3 additions & 1 deletion pkg/util/lua_configuration.go
Original file line number Diff line number Diff line change
Expand Up @@ -44,7 +44,9 @@ func init() {
klog.Errorf("Read file %s failed: %s", path, err.Error())
return err
}
luaConfigurationList[path] = string(data)
// Normalize key to use forward slashes so lookups are OS-independent
normalizedPath := filepath.ToSlash(path)
luaConfigurationList[normalizedPath] = string(data)
return nil
})
klog.Infof("Init Lua Configuration(%s)", DumpJSON(luaConfigurationList))
Expand Down
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