Add ip and ip6 to advanced network syntax

This allows setting the ip/ipv6 address as an option in the
advanced `--network` syntax;

```
docker run --network name=mynetwork,ip=172.20.88.22,ip6=2001:db8::8822
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

cli/command/container/opts.go

@@ -720,6 +720,12 @@ func applyContainerOptions(n *opts.NetworkAttachmentOpts, copts *containerOption
 	if len(n.Links) > 0 && copts.links.Len() > 0 {
 		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --link and per-network links"))
 	}
+	if n.IPv4Address != "" && copts.ipv4Address != "" {
+		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --ip and per-network IPv4 address"))
+	}
+	if n.IPv6Address != "" && copts.ipv6Address != "" {
+		return errdefs.InvalidParameter(errors.New("conflicting options: cannot specify both --ip6 and per-network IPv6 address"))
+	}
 	if copts.aliases.Len() > 0 {
 		n.Aliases = make([]string, copts.aliases.Len())
 		copy(n.Aliases, copts.aliases.GetAll())
@@ -728,10 +734,12 @@ func applyContainerOptions(n *opts.NetworkAttachmentOpts, copts *containerOption
 		n.Links = make([]string, copts.links.Len())
 		copy(n.Links, copts.links.GetAll())
 	}
-
-	// TODO add IPv4/IPv6 options to the csv notation for --network, and error-out in case of conflicting options
-	n.IPv4Address = copts.ipv4Address
-	n.IPv6Address = copts.ipv6Address
+	if copts.ipv4Address != "" {
+		n.IPv4Address = copts.ipv4Address
+	}
+	if copts.ipv6Address != "" {
+		n.IPv6Address = copts.ipv6Address
+	}
 
 	// TODO should linkLocalIPs be added to the _first_ network only, or to _all_ networks? (should this be a per-network option as well?)
 	if copts.linkLocalIPs.Len() > 0 {

cli/command/container/opts_test.go

@@ -449,7 +449,7 @@ func TestParseNetworkConfig(t *testing.T) {
 				"--network-alias", "web1",
 				"--network-alias", "web2",
 				"--network", "net2",
-				"--network", "name=net3,alias=web3,driver-opt=field3=value3",
+				"--network", "name=net3,alias=web3,driver-opt=field3=value3,ip=172.20.88.22,ip6=2001:db8::8822",
 			},
 			expected: map[string]*networktypes.EndpointSettings{
 				"net1": {
@@ -465,20 +465,28 @@ func TestParseNetworkConfig(t *testing.T) {
 				"net2": {},
 				"net3": {
 					DriverOpts: map[string]string{"field3": "value3"},
-					Aliases:    []string{"web3"},
+					IPAMConfig: &networktypes.EndpointIPAMConfig{
+						IPv4Address: "172.20.88.22",
+						IPv6Address: "2001:db8::8822",
+					},
+					Aliases: []string{"web3"},
 				},
 			},
 			expectedCfg: container.HostConfig{NetworkMode: "net1"},
 		},
 		{
 			name:  "single-network-advanced-with-options",
-			flags: []string{"--network", "name=net1,alias=web1,alias=web2,driver-opt=field1=value1,driver-opt=field2=value2"},
+			flags: []string{"--network", "name=net1,alias=web1,alias=web2,driver-opt=field1=value1,driver-opt=field2=value2,ip=172.20.88.22,ip6=2001:db8::8822"},
 			expected: map[string]*networktypes.EndpointSettings{
 				"net1": {
 					DriverOpts: map[string]string{
 						"field1": "value1",
 						"field2": "value2",
 					},
+					IPAMConfig: &networktypes.EndpointIPAMConfig{
+						IPv4Address: "172.20.88.22",
+						IPv6Address: "2001:db8::8822",
+					},
 					Aliases: []string{"web1", "web2"},
 				},
 			},
@@ -496,10 +504,20 @@ func TestParseNetworkConfig(t *testing.T) {
 			expectedErr: `network "duplicate" is specified multiple times`,
 		},
 		{
-			name:        "conflict-options",
+			name:        "conflict-options-alias",
 			flags:       []string{"--network", "name=net1,alias=web1", "--network-alias", "web1"},
 			expectedErr: `conflicting options: cannot specify both --network-alias and per-network alias`,
 		},
+		{
+			name:        "conflict-options-ip",
+			flags:       []string{"--network", "name=net1,ip=172.20.88.22,ip6=2001:db8::8822", "--ip", "172.20.88.22"},
+			expectedErr: `conflicting options: cannot specify both --ip and per-network IPv4 address`,
+		},
+		{
+			name:        "conflict-options-ip6",
+			flags:       []string{"--network", "name=net1,ip=172.20.88.22,ip6=2001:db8::8822", "--ip6", "2001:db8::8822"},
+			expectedErr: `conflicting options: cannot specify both --ip6 and per-network IPv6 address`,
+		},
 		{
 			name:        "invalid-mixed-network-types",
 			flags:       []string{"--network", "name=host", "--network", "net1"},

opts/network.go

@@ -8,9 +8,11 @@ import (
 )
 
 const (
-	networkOptName  = "name"
-	networkOptAlias = "alias"
-	driverOpt       = "driver-opt"
+	networkOptName        = "name"
+	networkOptAlias       = "alias"
+	networkOptIPv4Address = "ip"
+	networkOptIPv6Address = "ip6"
+	driverOpt             = "driver-opt"
 )
 
 // NetworkAttachmentOpts represents the network options for endpoint creation
@@ -19,8 +21,8 @@ type NetworkAttachmentOpts struct {
 	Aliases      []string
 	DriverOpts   map[string]string
 	Links        []string // TODO add support for links in the csv notation of `--network`
-	IPv4Address  string   // TODO add support for IPv4-address in the csv notation of `--network`
-	IPv6Address  string   // TODO add support for IPv6-address in the csv notation of `--network`
+	IPv4Address  string
+	IPv6Address  string
 	LinkLocalIPs []string // TODO add support for LinkLocalIPs in the csv notation of `--network` ?
 }
 
@@ -60,6 +62,10 @@ func (n *NetworkOpt) Set(value string) error {
 				netOpt.Target = value
 			case networkOptAlias:
 				netOpt.Aliases = append(netOpt.Aliases, value)
+			case networkOptIPv4Address:
+				netOpt.IPv4Address = value
+			case networkOptIPv6Address:
+				netOpt.IPv6Address = value
 			case driverOpt:
 				key, value, err = parseDriverOpt(value)
 				if err == nil {

opts/network_test.go

@@ -58,6 +58,17 @@ func TestNetworkOptAdvancedSyntax(t *testing.T) {
 				},
 			},
 		},
+		{
+			value: "name=docknet1,ip=172.20.88.22,ip6=2001:db8::8822",
+			expected: []NetworkAttachmentOpts{
+				{
+					Target:      "docknet1",
+					Aliases:     []string{},
+					IPv4Address: "172.20.88.22",
+					IPv6Address: "2001:db8::8822",
+				},
+			},
+		},
 		{
 			value: "name=docknet1",
 			expected: []NetworkAttachmentOpts{