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taskset.go
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taskset.go
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package controller
import (
"context"
"encoding/json"
"fmt"
"strconv"
apierr "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"github.com/argoproj/argo-workflows/v3/errors"
"github.com/argoproj/argo-workflows/v3/pkg/apis/workflow"
wfv1 "github.com/argoproj/argo-workflows/v3/pkg/apis/workflow/v1alpha1"
"github.com/argoproj/argo-workflows/v3/workflow/common"
)
func (woc *wfOperationCtx) patchTaskSet(ctx context.Context, patch interface{}, pathTypeType types.PatchType) error {
patchByte, err := json.Marshal(patch)
if err != nil {
return errors.InternalWrapError(err)
}
_, err = woc.controller.wfclientset.ArgoprojV1alpha1().WorkflowTaskSets(woc.wf.Namespace).Patch(ctx, woc.wf.Name, pathTypeType, patchByte, metav1.PatchOptions{})
if err != nil {
return fmt.Errorf("failed patching taskset: %v", err)
}
return nil
}
func (woc *wfOperationCtx) getDeleteTaskAndNodePatch() map[string]interface{} {
deletedNode := make(map[string]interface{})
for _, node := range woc.wf.Status.Nodes {
if (node.Type == wfv1.NodeTypeHTTP || node.Type == wfv1.NodeTypePlugin) && node.Fulfilled() {
deletedNode[node.ID] = nil
}
}
// Delete the completed Tasks and nodes status
patch := map[string]interface{}{
"spec": map[string]interface{}{
"tasks": deletedNode,
},
"status": map[string]interface{}{
"nodes": deletedNode,
},
}
return patch
}
func taskSetNode(n wfv1.NodeStatus) bool {
return n.Type == wfv1.NodeTypeHTTP || n.Type == wfv1.NodeTypePlugin
}
func (woc *wfOperationCtx) hasTaskSetNodes() bool {
return woc.wf.Status.Nodes.Any(taskSetNode)
}
func (woc *wfOperationCtx) removeCompletedTaskSetStatus(ctx context.Context) error {
if !woc.hasTaskSetNodes() {
return nil
}
return woc.patchTaskSet(ctx, woc.getDeleteTaskAndNodePatch(), types.MergePatchType)
}
func (woc *wfOperationCtx) completeTaskSet(ctx context.Context) error {
if !woc.hasTaskSetNodes() {
return nil
}
patch := woc.getDeleteTaskAndNodePatch()
patch["metadata"] = metav1.ObjectMeta{
Labels: map[string]string{
common.LabelKeyCompleted: "true",
},
}
return woc.patchTaskSet(ctx, patch, types.MergePatchType)
}
func (woc *wfOperationCtx) getWorkflowTaskSet() (*wfv1.WorkflowTaskSet, error) {
taskSet, exists, err := woc.controller.wfTaskSetInformer.Informer().GetIndexer().GetByKey(woc.wf.Namespace + "/" + woc.wf.Name)
if err != nil {
return nil, err
}
if !exists {
return nil, nil
}
return taskSet.(*wfv1.WorkflowTaskSet), nil
}
func (woc *wfOperationCtx) taskSetReconciliation(ctx context.Context) {
if err := woc.reconcileTaskSet(ctx); err != nil {
woc.log.WithError(err).Error("error in workflowtaskset reconciliation")
return
}
if err := woc.reconcileAgentPod(ctx); err != nil {
woc.log.WithError(err).Error("error in agent pod reconciliation")
woc.markWorkflowError(ctx, err)
return
}
}
func (woc *wfOperationCtx) nodeRequiresTaskSetReconciliation(nodeName string) bool {
node := woc.wf.GetNodeByName(nodeName)
if node == nil {
return false
}
// If this node is of type HTTP, it will need an HTTP reconciliation
if taskSetNode(*node) {
return true
}
for _, child := range node.Children {
// If any of the node's children need an HTTP reconciliation, the parent node will also need one
if woc.nodeRequiresTaskSetReconciliation(child) {
return true
}
}
// If neither of the children need one -- or if there are no children -- no HTTP reconciliation is needed.
return false
}
func (woc *wfOperationCtx) reconcileTaskSet(ctx context.Context) error {
workflowTaskSet, err := woc.getWorkflowTaskSet()
if err != nil {
return err
}
woc.log.Info("TaskSet Reconciliation")
if workflowTaskSet != nil && len(workflowTaskSet.Status.Nodes) > 0 {
for nodeID, taskResult := range workflowTaskSet.Status.Nodes {
node := woc.wf.Status.Nodes[nodeID]
node.Outputs = taskResult.Outputs.DeepCopy()
node.Phase = taskResult.Phase
node.Message = taskResult.Message
node.FinishedAt = metav1.Now()
woc.wf.Status.Nodes[nodeID] = node
woc.updated = true
}
}
return woc.createTaskSet(ctx)
}
func (woc *wfOperationCtx) createTaskSet(ctx context.Context) error {
if len(woc.taskSet) == 0 {
return nil
}
woc.log.Info("Creating TaskSet")
taskSet := wfv1.WorkflowTaskSet{
TypeMeta: metav1.TypeMeta{
Kind: workflow.WorkflowTaskSetKind,
APIVersion: workflow.APIVersion,
},
ObjectMeta: metav1.ObjectMeta{
Namespace: woc.wf.Namespace,
Name: woc.wf.Name,
OwnerReferences: []metav1.OwnerReference{
{
APIVersion: woc.wf.APIVersion,
Kind: woc.wf.Kind,
UID: woc.wf.UID,
Name: woc.wf.Name,
},
},
},
Spec: wfv1.WorkflowTaskSetSpec{
Tasks: woc.taskSet,
},
}
woc.log.Debug("creating new taskset")
_, err := woc.controller.wfclientset.ArgoprojV1alpha1().WorkflowTaskSets(woc.wf.Namespace).Create(ctx, &taskSet, metav1.CreateOptions{})
if apierr.IsConflict(err) || apierr.IsAlreadyExists(err) {
woc.log.Debug("patching the exiting taskset")
spec := map[string]interface{}{
"metadata": metav1.ObjectMeta{
Labels: map[string]string{
common.LabelKeyCompleted: strconv.FormatBool(woc.wf.Status.Fulfilled()),
},
},
"spec": wfv1.WorkflowTaskSetSpec{Tasks: woc.taskSet},
}
// patch the new templates into taskset
err = woc.patchTaskSet(ctx, spec, types.MergePatchType)
if err != nil {
woc.log.WithError(err).Error("Failed to patch WorkflowTaskSet")
return fmt.Errorf("failed to patch TaskSet. %v", err)
}
} else if err != nil {
woc.log.WithError(err).Error("Failed to create WorkflowTaskSet")
return err
}
return nil
}