feat(compose): add ipv6-address parsing

fixes #4597

Signed-off-by: Frits <[email protected]>

Author: frits-v

pkg/composer/serviceparser/serviceparser.go

@@ -597,6 +597,9 @@ func newContainer(project *types.Project, parsed *Service, i int) (*Container, e
 			if value != nil && value.Ipv4Address != "" {
 				c.RunArgs = append(c.RunArgs, "--ip="+value.Ipv4Address)
 			}
+			if value != nil && value.Ipv6Address != "" {
+				c.RunArgs = append(c.RunArgs, "--ip6="+value.Ipv6Address)
+			}
 			if value != nil && value.MacAddress != "" {
 				c.RunArgs = append(c.RunArgs, "--mac-address="+value.MacAddress)
 			}

pkg/composer/serviceparser/serviceparser_test.go

@@ -482,6 +482,44 @@ services:
 
 }
 
+func TestParseDualStackAddress(t *testing.T) {
+	t.Parallel()
+	const dockerComposeYAML = `
+services:
+  foo:
+    image: nginx:alpine
+    networks:
+      default:
+        ipv4_address: "172.30.0.100"
+        ipv6_address: "2001:db8:abc:123::42"
+networks:
+  default:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: "172.30.0.0/24"
+        - subnet: "2001:db8:abc:123::/64"
+`
+	comp := testutil.NewComposeDir(t, dockerComposeYAML)
+	defer comp.CleanUp()
+
+	project, err := testutil.LoadProject(comp.YAMLFullPath(), comp.ProjectName(), nil)
+	assert.NilError(t, err)
+
+	fooSvc, err := project.GetService("foo")
+	assert.NilError(t, err)
+
+	foo, err := Parse(project, fooSvc)
+	assert.NilError(t, err)
+
+	t.Logf("foo: %+v", foo)
+	for _, c := range foo.Containers {
+		assert.Assert(t, in(c.RunArgs, "--ip=172.30.0.100"))
+		assert.Assert(t, in(c.RunArgs, "--ip6=2001:db8:abc:123::42"))
+	}
+}
+
 func TestParseConfigs(t *testing.T) {
 	t.Parallel()
 	if runtime.GOOS == "windows" {