Support for Windows job containers

config-windows.md

@@ -205,3 +205,25 @@ The following parameters can be specified:
     }
 }
 ```
+
+## <a name="configWindowsJobContainer" />JobContainer
+
+`jobContainer` is an OPTIONAL field of the Windows configuration.
+If present, the container MUST be run as a Windows job container. This is a process or set of processes in a job object that is managed by the runtime.
+If omitted, the container MUST be run as either a Windows Server Container, or with Hyper-V isolation if `hyperv` is supplied.
+If `hyperv` and `jobContainer` are both present, the runtime MUST return an error.
+
+The following parameters can be specified:
+
+* **`rootfsMountPoint`** *(string, OPTIONAL)* - specifies the path that the container's rootfs volume should be mounted to.
+    If not supplied, the path will be determined by the runtime
+
+### Example
+
+```json
+"windows": {
+    "jobContainer": {
+        "rootfsMountPoint": "C:\\foo\\bar\\baz\\"
+    }
+}
+```

schema/config-windows.json

@@ -93,6 +93,14 @@
                         "type": "string"
                     }
                 }
+            },
+            "jobContainer": {
+                "type": "object",
+                "properties": {
+                    "rootfsMountPoint": {
+                        "type": "string"
+                    }
+                }
             }
         },
         "required": [

specs-go/config.go

@@ -489,6 +489,8 @@ type Windows struct {
 	IgnoreFlushesDuringBoot bool `json:"ignoreFlushesDuringBoot,omitempty"`
 	// HyperV contains information for running a container with Hyper-V isolation.
 	HyperV *WindowsHyperV `json:"hyperv,omitempty"`
+	// JobContainer contains information for running a Windows job container.
+	JobContainer *WindowsJobContainer `json:"jobContainer,omitempty"`
 	// Network restriction configuration.
 	Network *WindowsNetwork `json:"network,omitempty"`
 }
@@ -557,6 +559,13 @@ type WindowsHyperV struct {
 	UtilityVMPath string `json:"utilityVMPath,omitempty"`
 }
 
+// WindowsJobContainer contains information for configuring a job container on Windows.
+type WindowsJobContainer struct {
+	// RootfsMountPoint is an optional path that indicates where the container's rootfs volume should
+	// be mounted on the host.
+	RootfsMountPoint string `json:"rootfsMountPoint,omitempty"`
+}
+
 // VM contains information for virtual-machine-based containers.
 type VM struct {
 	// Hypervisor specifies hypervisor-related configuration for virtual-machine-based containers.