Handle networks.driver_opts for a service

These are endpoint-specific driver options...

services:
  myservice:
    image: myimage
    networks:
      mynet:
        driver_opts:
          "option1": "value1"

The API has had support for a long time, it's only recently been
added to compose (unreleased right now).

Signed-off-by: Rob Murray <rob.murray@docker.com>

cli/compose/convert/service.go

@@ -215,16 +215,19 @@ func convertServiceNetworks(
 			return nil, errors.Errorf("undefined network %q", networkName)
 		}
 		var aliases []string
+		var driverOpts map[string]string
 		if network != nil {
 			aliases = network.Aliases
+			driverOpts = network.DriverOpts
 		}
 		target := namespace.Scope(networkName)
 		if networkConfig.Name != "" {
 			target = networkConfig.Name
 		}
 		netAttachConfig := swarm.NetworkAttachmentConfig{
-			Target:  target,
-			Aliases: aliases,
+			Target:     target,
+			Aliases:    aliases,
+			DriverOpts: driverOpts,
 		}
 		// Only add default aliases to user defined networks. Other networks do
 		// not support aliases.

cli/compose/convert/service_test.go

@@ -240,6 +240,10 @@ func TestConvertServiceNetworks(t *testing.T) {
 	networks := map[string]*composetypes.ServiceNetworkConfig{
 		"front": {
 			Aliases: []string{"something"},
+			DriverOpts: map[string]string{
+				"driver.opt1": "optval1",
+				"driver.opt2": "optval2",
+			},
 		},
 		"back": {
 			Aliases: []string{"other"},
@@ -257,6 +261,10 @@ func TestConvertServiceNetworks(t *testing.T) {
 		{
 			Target:  "fronttier",
 			Aliases: []string{"something", "service"},
+			DriverOpts: map[string]string{
+				"driver.opt1": "optval1",
+				"driver.opt2": "optval2",
+			},
 		},
 	}
 

cli/compose/loader/full-example.yml

@@ -207,6 +207,9 @@ services:
         aliases:
          - alias1
          - alias3
+        driver_opts:
+          "driveropt1": "optval1"
+          "driveropt2": "optval2"
       other-network:
         ipv4_address: 172.16.238.10
         ipv6_address: 2001:3984:3989::10

cli/compose/loader/full-struct_test.go

@@ -190,6 +190,10 @@ func services(workingDir, homeDir string) []types.ServiceConfig {
 					Aliases:     []string{"alias1", "alias3"},
 					Ipv4Address: "",
 					Ipv6Address: "",
+					DriverOpts: map[string]string{
+						"driveropt1": "optval1",
+						"driveropt2": "optval2",
+					},
 				},
 				"other-network": {
 					Ipv4Address: "172.16.238.10",

cli/compose/loader/testdata/full-example.json.golden

@@ -285,7 +285,11 @@
           "aliases": [
             "alias1",
             "alias3"
-          ]
+          ],
+          "driver_opts": {
+            "driveropt1": "optval1",
+            "driveropt2": "optval2"
+          }
         }
       },
       "pid": "host",

cli/compose/loader/testdata/full-example.yaml.golden

@@ -152,6 +152,9 @@ services:
         aliases:
         - alias1
         - alias3
+        driver_opts:
+          driveropt1: optval1
+          driveropt2: optval2
     pid: host
     ports:
     - mode: ingress

cli/compose/schema/data/config_schema_v3.13.json

@@ -197,6 +197,12 @@
                       "type": "object",
                       "properties": {
                         "aliases": {"$ref": "#/definitions/list_of_strings"},
+                        "driver_opts": {
+                          "type": "object",
+                          "patternProperties": {
+                            "^.+$": { "type": ["string", "number"] }
+                          }
+                        },
                         "ipv4_address": {"type": "string"},
                         "ipv6_address": {"type": "string"}
                       },

cli/compose/types/types.go

@@ -374,9 +374,10 @@ type PlacementPreferences struct {
 
 // ServiceNetworkConfig is the network configuration for a service
 type ServiceNetworkConfig struct {
-	Aliases     []string `yaml:",omitempty" json:"aliases,omitempty"`
-	Ipv4Address string   `mapstructure:"ipv4_address" yaml:"ipv4_address,omitempty" json:"ipv4_address,omitempty"`
-	Ipv6Address string   `mapstructure:"ipv6_address" yaml:"ipv6_address,omitempty" json:"ipv6_address,omitempty"`
+	Aliases     []string          `yaml:",omitempty" json:"aliases,omitempty"`
+	DriverOpts  map[string]string `mapstructure:"driver_opts" yaml:"driver_opts,omitempty" json:"driver_opts,omitempty"`
+	Ipv4Address string            `mapstructure:"ipv4_address" yaml:"ipv4_address,omitempty" json:"ipv4_address,omitempty"`
+	Ipv6Address string            `mapstructure:"ipv6_address" yaml:"ipv6_address,omitempty" json:"ipv6_address,omitempty"`
 }
 
 // ServicePortConfig is the port configuration for a service