fix(controller): allow workflow.duration to pass validator

examples/README.md

@@ -956,7 +956,7 @@ spec:
     container:
       image: alpine:latest
       command: [sh, -c]
-      args: ["echo send e-mail: {{workflow.name}} {{workflow.status}}"]
+      args: ["echo send e-mail: {{workflow.name}} {{workflow.status}} {{workflow.duration}}"]
   - name: celebrate
     container:
       image: alpine:latest

examples/exit-handlers.yaml

@@ -46,7 +46,7 @@ spec:
       #
       # Will print a list of all the failed steps and their messages. For more info look up the jq docs.
       # Note: jq is not installed by default on the "alpine:latest" image, however it can be installed with "apk add jq"
-      args: ["echo send e-mail: {{workflow.name}} {{workflow.status}}. Failed steps {{workflow.failures}}"]
+      args: ["echo send e-mail: {{workflow.name}} {{workflow.status}} {{workflow.duration}}. Failed steps {{workflow.failures}}"]
   - name: celebrate
     container:
       image: alpine:latest

workflow/controller/operator_test.go

@@ -3202,7 +3202,7 @@ spec:
     container:
       image: alpine:latest
       command: [sh, -c]
-      args: ["echo send e-mail: {{workflow.name}} {{workflow.status}}. Failed steps {{workflow.failures}}"]
+      args: ["echo send e-mail: {{workflow.name}} {{workflow.status}} {{workflow.duration}}. Failed steps {{workflow.failures}}"]
 `
 
 func TestStepsOnExitFailures(t *testing.T) {

workflow/validate/validate.go

@@ -561,6 +561,7 @@ func resolveAllVariables(scope map[string]interface{}, tmplStr string) error {
 			} else if strings.HasPrefix(tag, common.GlobalVarWorkflowCreationTimestamp) {
 			} else if strings.HasPrefix(tag, common.GlobalVarWorkflowCronScheduleTime) {
 				// Allow runtime resolution for "scheduledTime" which will pass from CronWorkflow
+			} else if strings.HasPrefix(tag, common.GlobalVarWorkflowDuration) {
 			} else {
 				return fmt.Errorf("failed to resolve {{%s}}", tag)
 			}

workflow/validate/validate_test.go

@@ -970,7 +970,7 @@ spec:
     container:
       image: alpine:latest
       command: [sh, -c]
-      args: ["echo {{workflow.status}} {{workflow.uid}}"]
+      args: ["echo {{workflow.status}} {{workflow.uid}} {{workflow.duration}}"]
 `
 
 var workflowStatusNotOnExit = `
@@ -2172,7 +2172,9 @@ spec:
           - name: uid
             value: "{{workflow.uid}}"
           - name: priority
-            value: "{{workflow.priority}}"    
+            value: "{{workflow.priority}}"
+          - name: duration
+            value: "{{workflow.duration}}"
 
   - name: whalesay
     inputs:
@@ -2182,10 +2184,11 @@ spec:
       - name: serviceAccountName
       - name: uid
       - name: priority
+      - name: duration
     container:
       image: docker/whalesay:latest
       command: [cowsay]
-      args: ["name: {{inputs.parameters.name}} namespace: {{inputs.parameters.namespace}} serviceAccountName: {{inputs.parameters.serviceAccountName}} uid: {{inputs.parameters.uid}} priority: {{inputs.parameters.priority}}"]
+      args: ["name: {{inputs.parameters.name}} namespace: {{inputs.parameters.namespace}} serviceAccountName: {{inputs.parameters.serviceAccountName}} uid: {{inputs.parameters.uid}} priority: {{inputs.parameters.priority}} duration: {{inputs.parameters.duration}}"]
 `
 
 func TestWorkflowGlobalVariables(t *testing.T) {