Refactor to remove Workflow from Node executor (flyteorg#102)

flytepropeller/cmd/kubectl-flyte/cmd/get.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	gotree "github.com/DiSiqueira/GoTree"
+	"github.com/lyft/flytestdlib/storage"
 	"github.com/spf13/cobra"
 	v12 "k8s.io/api/core/v1"
 	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -64,6 +65,7 @@ func (g *GetOpts) getWorkflow(ctx context.Context, name string) error {
 	}
 	wp := printers.WorkflowPrinter{}
 	tree := gotree.New("Workflow")
+	w.DataReferenceConstructor = storage.URLPathConstructor{}
 	if err := wp.Print(ctx, tree, w); err != nil {
 		return err
 	}

flytepropeller/cmd/kubectl-flyte/cmd/printers/node.go

@@ -11,8 +11,8 @@ import (
 
 	gotree "github.com/DiSiqueira/GoTree"
 	"github.com/fatih/color"
+
 	"github.com/lyft/flytepropeller/pkg/apis/flyteworkflow/v1alpha1"
-	"github.com/lyft/flytepropeller/pkg/controller/executors"
 	"github.com/lyft/flytepropeller/pkg/controller/nodes/task"
 	"github.com/lyft/flytepropeller/pkg/utils"
 )
@@ -113,8 +113,7 @@ func (p NodePrinter) traverseNode(ctx context.Context, tree gotree.Tree, w v1alp
 		if node.GetWorkflowNode().GetSubWorkflowRef() != nil {
 			s := w.FindSubWorkflow(*node.GetWorkflowNode().GetSubWorkflowRef())
 			wp := WorkflowPrinter{}
-			cw := executors.NewSubContextualWorkflow(w, s, nodeStatus)
-			return wp.Print(ctx, tree, cw)
+			return wp.PrintSubWorkflow(ctx, tree, w, s, nodeStatus)
 		}
 	case v1alpha1.NodeKindTask:
 		sub := tree.Add(strings.Join(p.NodeInfo(w.GetName(), node, nodeStatus), " | "))

flytepropeller/cmd/kubectl-flyte/cmd/printers/workflow.go

@@ -7,6 +7,7 @@ import (
 
 	gotree "github.com/DiSiqueira/GoTree"
 	"github.com/fatih/color"
+
 	"github.com/lyft/flytepropeller/pkg/apis/flyteworkflow/v1alpha1"
 	"github.com/lyft/flytepropeller/pkg/visualize"
 )
@@ -25,7 +26,7 @@ func ColorizeWorkflowPhase(p v1alpha1.WorkflowPhase) string {
 	return color.CyanString("%s", p.String())
 }
 
-func CalculateWorkflowRuntime(s v1alpha1.ExecutableWorkflowStatus) string {
+func CalculateWorkflowRuntime(s v1alpha1.ExecutionTimeInfo) string {
 	if s.GetStartedAt() != nil {
 		if s.GetStoppedAt() != nil {
 			return s.GetStoppedAt().Sub(s.GetStartedAt().Time).String()
@@ -35,6 +36,12 @@ func CalculateWorkflowRuntime(s v1alpha1.ExecutableWorkflowStatus) string {
 	return "na"
 }
 
+type ContextualWorkflow struct {
+	v1alpha1.MetaExtended
+	v1alpha1.ExecutableSubWorkflow
+	v1alpha1.NodeStatusGetter
+}
+
 type WorkflowPrinter struct {
 }
 
@@ -53,6 +60,22 @@ func (p WorkflowPrinter) Print(ctx context.Context, tree gotree.Tree, w v1alpha1
 	return np.PrintList(ctx, newTree, w, sortedNodes)
 }
 
+func (p WorkflowPrinter) PrintSubWorkflow(ctx context.Context, tree gotree.Tree, w v1alpha1.ExecutableWorkflow, swf v1alpha1.ExecutableSubWorkflow, ns v1alpha1.ExecutableNodeStatus) error {
+	sortedNodes, err := visualize.TopologicalSort(swf)
+	if err != nil {
+		return err
+	}
+	newTree := gotree.New(fmt.Sprintf("SubWorkflow [%s] (%s %s %s)",
+		swf.GetID(), CalculateWorkflowRuntime(ns),
+		ColorizeNodePhase(ns.GetPhase()), ns.GetMessage()))
+	if tree != nil {
+		tree.AddTree(newTree)
+	}
+	np := NodePrinter{}
+
+	return np.PrintList(ctx, newTree, &ContextualWorkflow{MetaExtended: w, ExecutableSubWorkflow: swf, NodeStatusGetter: ns}, sortedNodes)
+}
+
 func (p WorkflowPrinter) PrintShort(tree gotree.Tree, w v1alpha1.ExecutableWorkflow) error {
 	if tree == nil {
 		return fmt.Errorf("bad state in printer")

flytepropeller/pkg/apis/flyteworkflow/v1alpha1/iface.go

@@ -2,7 +2,6 @@ package v1alpha1
 
 import (
 	"context"
-
 	"time"
 
 	v1 "k8s.io/api/core/v1"
@@ -238,16 +237,20 @@ type MutableNodeStatus interface {
 	ClearSubNodeStatus()
 }
 
+type ExecutionTimeInfo interface {
+	GetStoppedAt() *metav1.Time
+	GetStartedAt() *metav1.Time
+	GetLastUpdatedAt() *metav1.Time
+}
+
 // Interface for a Node p. This provides a mutable API.
 type ExecutableNodeStatus interface {
 	NodeStatusGetter
 	MutableNodeStatus
 	NodeStatusVisitor
+	ExecutionTimeInfo
 	GetPhase() NodePhase
 	GetQueuedAt() *metav1.Time
-	GetStoppedAt() *metav1.Time
-	GetStartedAt() *metav1.Time
-	GetLastUpdatedAt() *metav1.Time
 	GetLastAttemptStartedAt() *metav1.Time
 	GetParentNodeID() *NodeID
 	GetParentTaskID() *core.TaskExecutionIdentifier
@@ -324,11 +327,9 @@ type ExecutableNode interface {
 // Interface for the Workflow p. This is the mutable portion for a Workflow
 type ExecutableWorkflowStatus interface {
 	NodeStatusGetter
+	ExecutionTimeInfo
 	UpdatePhase(p WorkflowPhase, msg string)
 	GetPhase() WorkflowPhase
-	GetStoppedAt() *metav1.Time
-	GetStartedAt() *metav1.Time
-	GetLastUpdatedAt() *metav1.Time
 	IsTerminated() bool
 	GetMessage() string
 	SetDataDir(DataReference)
@@ -340,13 +341,18 @@ type ExecutableWorkflowStatus interface {
 	ConstructNodeDataDir(ctx context.Context, name NodeID) (storage.DataReference, error)
 }
 
+type NodeGetter interface {
+	GetNode(nodeID NodeID) (ExecutableNode, bool)
+}
+
 type BaseWorkflow interface {
+	NodeGetter
 	StartNode() ExecutableNode
 	GetID() WorkflowID
 	// From returns all nodes that can be reached directly
 	// from the node with the given unique name.
 	FromNode(name NodeID) ([]NodeID, error)
-	GetNode(nodeID NodeID) (ExecutableNode, bool)
+	ToNode(name NodeID) ([]NodeID, error)
 }
 
 type BaseWorkflowWithStatus interface {
@@ -365,9 +371,9 @@ type ExecutableSubWorkflow interface {
 	GetOutputs() *OutputVarMap
 }
 
-// WorkflowMeta provides an interface to retrieve labels, annotations and other concepts that are declared only once
+// Meta provides an interface to retrieve labels, annotations and other concepts that are declared only once
 // for the top level workflow
-type WorkflowMeta interface {
+type Meta interface {
 	GetExecutionID() ExecutionID
 	GetK8sWorkflowID() types.NamespacedName
 	GetOwnerReference() metav1.OwnerReference
@@ -384,17 +390,21 @@ type TaskDetailsGetter interface {
 	GetTask(id TaskID) (ExecutableTask, error)
 }
 
-type WorkflowMetaExtended interface {
-	WorkflowMeta
-	TaskDetailsGetter
+type SubWorkflowGetter interface {
 	FindSubWorkflow(subID WorkflowID) ExecutableSubWorkflow
+}
+
+type MetaExtended interface {
+	Meta
+	TaskDetailsGetter
+	SubWorkflowGetter
 	GetExecutionStatus() ExecutableWorkflowStatus
 }
 
-// A Top level Workflow is a combination of WorkflowMeta and an ExecutableSubWorkflow
+// A Top level Workflow is a combination of Meta and an ExecutableSubWorkflow
 type ExecutableWorkflow interface {
 	ExecutableSubWorkflow
-	WorkflowMetaExtended
+	MetaExtended
 	NodeStatusGetter
 }
 
@@ -420,15 +430,3 @@ func GetOutputsFile(outputDir DataReference) DataReference {
 func GetInputsFile(inputDir DataReference) DataReference {
 	return inputDir + "/inputs.pb"
 }
-
-func GetOutputErrorFile(inputDir DataReference) DataReference {
-	return inputDir + "/error.pb"
-}
-
-func GetFutureFile() string {
-	return "futures.pb"
-}
-
-func GetCompiledFutureFile() string {
-	return "futures_compiled.pb"
-}