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command.go
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command.go
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package pipelines
import (
"context"
"fmt"
argo "github.com/argoproj/argo-workflows/v3/pkg/apis/workflow/v1alpha1"
"github.com/sky-uk/kfp-operator/apis"
pipelinesv1 "github.com/sky-uk/kfp-operator/apis/pipelines/v1alpha5"
"github.com/sky-uk/kfp-operator/controllers"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/tools/record"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
"sigs.k8s.io/controller-runtime/pkg/log"
)
var EventTypes = struct {
Normal string
Warning string
}{
Warning: "Warning",
Normal: "Normal",
}
var EventReasons = struct {
Syncing string
Synced string
SyncFailed string
}{
Syncing: "Syncing",
Synced: "Synced",
SyncFailed: "SyncFailed",
}
type K8sExecutionContext struct {
Client controllers.OptInClient
Recorder record.EventRecorder
Scheme *runtime.Scheme
WorkflowRepository WorkflowRepository
}
type Command interface {
execute(context.Context, K8sExecutionContext, pipelinesv1.Resource) error
}
func alwaysSetObservedGeneration(ctx context.Context, commands []Command, resource pipelinesv1.Resource) []Command {
currentGeneration := resource.GetGeneration()
if currentGeneration == resource.GetStatus().ObservedGeneration {
return commands
}
logger := log.FromContext(ctx)
setStatusExists := false
var modifiedCommands []Command
for _, command := range commands {
setStatus, isSetStatus := command.(SetStatus)
if isSetStatus {
if setStatusExists {
logger.Info("attempting to set status more than once in the same reconciliation, this is likely to cause inconsistencies")
}
setStatusExists = true
setStatus.Status.ObservedGeneration = currentGeneration
modifiedCommands = append(modifiedCommands, setStatus)
} else {
modifiedCommands = append(modifiedCommands, command)
}
}
if !setStatusExists {
newStatus := resource.GetStatus()
newStatus.ObservedGeneration = currentGeneration
modifiedCommands = append(modifiedCommands, SetStatus{Status: newStatus})
}
return modifiedCommands
}
type SetStatus struct {
Message string
Status pipelinesv1.Status
}
func From(status pipelinesv1.Status) *SetStatus {
return &SetStatus{
Status: status,
}
}
func NewSetStatus() *SetStatus {
return &SetStatus{}
}
func (sps *SetStatus) WithSynchronizationState(state apis.SynchronizationState) *SetStatus {
sps.Status.SynchronizationState = state
return sps
}
func (sps *SetStatus) WithVersion(version string) *SetStatus {
sps.Status.Version = version
return sps
}
func (sps *SetStatus) WithProviderId(providerId pipelinesv1.ProviderAndId) *SetStatus {
sps.Status.ProviderId = providerId
return sps
}
func (sps *SetStatus) WithMessage(message string) *SetStatus {
sps.Message = message
return sps
}
func eventMessage(sps SetStatus) (message string) {
message = fmt.Sprintf(`%s [version: "%s"]`, string(sps.Status.SynchronizationState), sps.Status.Version)
if sps.Message != "" {
message = fmt.Sprintf("%s: %s", message, sps.Message)
}
return
}
func eventType(sps SetStatus) string {
if sps.Status.SynchronizationState == apis.Failed {
return EventTypes.Warning
} else {
return EventTypes.Normal
}
}
func eventReason(sps SetStatus) string {
switch sps.Status.SynchronizationState {
case apis.Succeeded, apis.Deleted:
return EventReasons.Synced
case apis.Failed:
return EventReasons.SyncFailed
default:
return EventReasons.Syncing
}
}
func (sps SetStatus) statusWithCondition() pipelinesv1.Status {
sps.Status.Conditions = sps.Status.Conditions.MergeIntoConditions(metav1.Condition{
LastTransitionTime: metav1.Now(),
Message: sps.Message,
ObservedGeneration: sps.Status.ObservedGeneration,
Type: pipelinesv1.ConditionTypes.SynchronizationSucceeded,
Status: pipelinesv1.ConditionStatusForSynchronizationState(sps.Status.SynchronizationState),
Reason: string(sps.Status.SynchronizationState),
})
return sps.Status
}
func (sps SetStatus) execute(ctx context.Context, ec K8sExecutionContext, resource pipelinesv1.Resource) error {
logger := log.FromContext(ctx)
logger.V(1).Info("setting pipeline status", LogKeys.OldStatus, resource.GetStatus(), LogKeys.NewStatus, sps.Status)
resource.SetStatus(sps.statusWithCondition())
err := ec.Client.Status().Update(ctx, resource)
if err == nil {
ec.Recorder.Event(resource, eventType(sps), eventReason(sps), eventMessage(sps))
}
return err
}
type CreateWorkflow struct {
Workflow argo.Workflow
}
func (cw CreateWorkflow) execute(ctx context.Context, ec K8sExecutionContext, resource pipelinesv1.Resource) error {
logger := log.FromContext(ctx)
logger.V(1).Info("creating child workflow", LogKeys.Workflow, cw.Workflow)
if err := ec.WorkflowRepository.CreateWorkflowForResource(ctx, &cw.Workflow, resource); err != nil {
return err
}
return nil
}
type MarkWorkflowsAsProcessed struct {
Workflows []argo.Workflow
}
func (dw MarkWorkflowsAsProcessed) execute(ctx context.Context, ec K8sExecutionContext, _ pipelinesv1.Resource) error {
for i := range dw.Workflows {
workflow := &dw.Workflows[i]
if err := ec.WorkflowRepository.MarkWorkflowAsProcessed(ctx, workflow); err != nil {
return err
}
}
return nil
}
type AcquireResource struct {
}
func (ap AcquireResource) execute(ctx context.Context, ec K8sExecutionContext, resource pipelinesv1.Resource) error {
logger := log.FromContext(ctx)
if !controllerutil.ContainsFinalizer(resource, finalizerName) {
logger.V(2).Info("adding finalizer")
controllerutil.AddFinalizer(resource, finalizerName)
return ec.Client.Update(ctx, resource)
}
return nil
}
type ReleaseResource struct {
}
func (rp ReleaseResource) execute(ctx context.Context, ec K8sExecutionContext, resource pipelinesv1.Resource) error {
logger := log.FromContext(ctx)
if controllerutil.ContainsFinalizer(resource, finalizerName) {
logger.V(2).Info("removing finalizer")
controllerutil.RemoveFinalizer(resource, finalizerName)
return ec.Client.Update(ctx, resource)
}
return nil
}