create: pull all services logic out of loop; add DependsOn deps

Signed-off-by: Nick Sieger <nick@nicksieger.com>

Author: nicksieger

pkg/compose/create.go

@@ -146,6 +146,9 @@ func prepareNetworks(project *types.Project) {
 }
 
 func prepareServicesDependsOn(p *types.Project) error {
+	allServices := types.Project{}
+	allServices.Services = p.AllServices()
+
 	for i, service := range p.Services {
 		var dependencies []string
 		networkDependency := getDependentServiceFromMode(service.NetworkMode)
@@ -178,20 +181,24 @@ func prepareServicesDependsOn(p *types.Project) error {
 			dependencies = append(dependencies, strings.Split(link, ":")[0])
 		}
 
+		for d := range service.DependsOn {
+			dependencies = append(dependencies, d)
+		}
+
 		if len(dependencies) == 0 {
 			continue
 		}
-		if service.DependsOn == nil {
-			service.DependsOn = make(types.DependsOnConfig)
-		}
 
 		// Verify dependencies exist in the project, whether disabled or not
-		projAllServices := types.Project{}
-		projAllServices.Services = p.AllServices()
-		deps, err := projAllServices.GetServices(dependencies...)
+		deps, err := allServices.GetServices(dependencies...)
 		if err != nil {
 			return err
 		}
+
+		if service.DependsOn == nil {
+			service.DependsOn = make(types.DependsOnConfig)
+		}
+
 		for _, d := range deps {
 			if _, ok := service.DependsOn[d.Name]; !ok {
 				service.DependsOn[d.Name] = types.ServiceDependency{