jobspec: job-level constraints

jobspec/parse.go

@@ -74,6 +74,7 @@ func parseJob(result *structs.Job, obj *hclobj.Object) error {
 	if err := hcl.DecodeObject(&m, obj); err != nil {
 		return err
 	}
+	delete(m, "constraint")
 	delete(m, "meta")
 
 	// Set the name to the object key
@@ -84,6 +85,13 @@ func parseJob(result *structs.Job, obj *hclobj.Object) error {
 		return err
 	}
 
+	// Parse constraints
+	if o := obj.Get("constraint", false); o != nil {
+		if err := parseConstraints(&result.Constraints, o); err != nil {
+			return err
+		}
+	}
+
 	// Parse out meta fields. These are in HCL as a list so we need
 	// to iterate over them and merge them.
 	if metaO := obj.Get("meta", false); metaO != nil {

jobspec/parse_test.go

@@ -27,6 +27,14 @@ func TestParse(t *testing.T) {
 					"foo": "bar",
 				},
 
+				Constraints: []*structs.Constraint{
+					&structs.Constraint{
+						LTarget: "kernel.os",
+						RTarget: "windows",
+						Operand: "=",
+					},
+				},
+
 				TaskGroups: []*structs.TaskGroup{
 					&structs.TaskGroup{
 						Name:  "outside",

jobspec/test-fixtures/basic.hcl

@@ -9,6 +9,11 @@ job "binstore-storagelocker" {
         foo = "bar"
     }
 
+    constraint {
+        attribute = "kernel.os"
+        value = "windows"
+    }
+
     task "outside" {
         driver = "java"
         config {