Merge pull request opencontainers#801 from darrenstahlmsft/WindowsNetwork

Update to Windows network options

Author: tianon

config-windows.md

@@ -75,22 +75,31 @@ The following parameters can be specified:
     }
 ```
 
-### <a name="configWindowsNetwork" />Network
+## <a name="configWindowsNetwork" />Network
 
-`network` is an OPTIONAL configuration for the container's network usage.
+You can configure a container's networking options via the OPTIONAL `network` field of the Windows configuration.
 
 The following parameters can be specified:
 
-* **`egressBandwidth`** *(uint64, OPTIONAL)* - specified the maximum egress bandwidth in bytes per second for the container.
+* **`endpointList`** *(array of strings, OPTIONAL)* - list of HNS (Host Network Service) endpoints that the container should connect to.
+* **`allowUnqualifiedDNSQuery`** *(bool, OPTIONAL)* - specifies if unqualified DNS name resolution is allowed.
+* **`DNSSearchList`** *(array of strings, OPTIONAL)* - comma seperated list of DNS suffixes to use for name resolution.
+* **`networkSharedContainerName`** *(string, OPTIONAL)* - name (ID) of the container that we will share with the network stack.
 
 #### Example
 
 ```json
     "windows": {
-        "resources": {
-            "network": {
-                "egressBandwidth": 1048577
-            }
+        "network": {
+            "endpointList": [
+                "7a010682-17e0-4455-a838-02e5d9655fe6"
+            ],
+            "allowUnqualifiedDNSQuery": true,
+            "DNSSearchList": [
+                "a.com",
+                "b.com"
+            ],
+            "networkSharedContainerName": "containerName"
         }
    }
 ```

schema/config-windows.json

@@ -53,16 +53,28 @@
                                 "$ref": "defs.json#/definitions/uint64"
                             }
                         }
+                    }
+                }
+            },
+            "network": {
+                "id": "https://opencontainers.org/schema/bundle/windows/network",
+                "type": "object",
+                "properties": {
+                    "endpointList": {
+                        "id": "https://opencontainers.org/schema/bundle/windows/network/endpointList",
+                        "$ref": "defs.json#/definitions/ArrayOfStrings"
                     },
-                    "network": {
-                        "id": "https://opencontainers.org/schema/bundle/windows/resources/network",
-                        "type": "object",
-                        "properties": {
-                            "egressBandwidth": {
-                                "id": "https://opencontainers.org/schema/bundle/windows/resources/network/egressBandwidth",
-                                "$ref": "defs.json#/definitions/uint64"
-                            }
-                        }
+                    "allowUnqualifiedDNSQuery": {
+                        "id": "https://opencontainers.org/schema/bundle/windows/network/allowUnqualifiedDNSQuery",
+                        "type": "boolean"
+                    },
+                    "DNSSearchList": {
+                        "id": "https://opencontainers.org/schema/bundle/windows/network/DNSSearchList",
+                        "$ref": "defs.json#/definitions/ArrayOfStrings"
+                    },
+                    "networkSharedContainerName": {
+                        "id": "https://opencontainers.org/schema/bundle/windows/network/networkSharedContainerName",
+                        "type": "string"
                     }
                 }
             },
@@ -94,4 +106,4 @@
             }
         }
     }
-}
+}

specs-go/config.go

@@ -440,6 +440,8 @@ type Windows struct {
 	IgnoreFlushesDuringBoot bool `json:"ignoreflushesduringboot,omitempty"`
 	// HyperV contains information for running a container with Hyper-V isolation.
 	HyperV *WindowsHyperV `json:"hyperv,omitempty"`
+	// Network restriction configuration.
+	Network *WindowsNetwork `json:"network,omitempty"`
 }
 
 // WindowsResources has container runtime resource constraints for containers running on Windows.
@@ -450,8 +452,6 @@ type WindowsResources struct {
 	CPU *WindowsCPUResources `json:"cpu,omitempty"`
 	// Storage restriction configuration.
 	Storage *WindowsStorageResources `json:"storage,omitempty"`
-	// Network restriction configuration.
-	Network *WindowsNetworkResources `json:"network,omitempty"`
 }
 
 // WindowsMemoryResources contains memory resource management settings.
@@ -480,10 +480,16 @@ type WindowsStorageResources struct {
 	SandboxSize *uint64 `json:"sandboxSize,omitempty"`
 }
 
-// WindowsNetworkResources contains network resource management settings.
-type WindowsNetworkResources struct {
-	// EgressBandwidth is the maximum egress bandwidth in bytes per second.
-	EgressBandwidth *uint64 `json:"egressBandwidth,omitempty"`
+// WindowsNetwork contains network settings for Windows containers.
+type WindowsNetwork struct {
+	// List of HNS endpoints that the container should connect to.
+	EndpointList []string `json:"endpointList,omitempty"`
+	// Specifies if unqualified DNS name resolution is allowed.
+	AllowUnqualifiedDNSQuery bool `json:"allowUnqualifiedDNSQuery,omitempty"`
+	// Comma seperated list of DNS suffixes to use for name resolution.
+	DNSSearchList []string `json:"DNSSearchList,omitempty"`
+	// Name (ID) of the container that we will share with the network stack.
+	NetworkSharedContainerName string `json:"networkSharedContainerName,omitempty"`
 }
 
 // WindowsHyperV contains information for configuring a container to run with Hyper-V isolation.