refactor(api): move service logic to separate package

api/build.go

@@ -1621,6 +1621,62 @@ func planBuild(database database.Interface, p *pipeline.Build, b *library.Build,
 	return nil
 }
 
+// planServices is a helper function to plan all services
+// in the build for execution. This creates the services
+// for the build in the configured backend.
+func planServices(database database.Interface, p *pipeline.Build, b *library.Build) ([]*library.Service, error) {
+	// variable to store planned services
+	services := []*library.Service{}
+
+	// iterate through all pipeline services
+	for _, service := range p.Services {
+		// create the service object
+		s := new(library.Service)
+		s.SetBuildID(b.GetID())
+		s.SetRepoID(b.GetRepoID())
+		s.SetName(service.Name)
+		s.SetImage(service.Image)
+		s.SetNumber(service.Number)
+		s.SetStatus(constants.StatusPending)
+		s.SetCreated(time.Now().UTC().Unix())
+
+		// send API call to create the service
+		err := database.CreateService(s)
+		if err != nil {
+			return services, fmt.Errorf("unable to create service %s: %w", s.GetName(), err)
+		}
+
+		// send API call to capture the created service
+		s, err = database.GetServiceForBuild(b, s.GetNumber())
+		if err != nil {
+			return services, fmt.Errorf("unable to get service %s: %w", s.GetName(), err)
+		}
+
+		// populate environment variables from service library
+		//
+		// https://pkg.go.dev/github.com/go-vela/types/library#Service.Environment
+		err = service.MergeEnv(s.Environment())
+		if err != nil {
+			return services, err
+		}
+
+		// create the log object
+		l := new(library.Log)
+		l.SetServiceID(s.GetID())
+		l.SetBuildID(b.GetID())
+		l.SetRepoID(b.GetRepoID())
+		l.SetData([]byte{})
+
+		// send API call to create the service logs
+		err = database.CreateLog(l)
+		if err != nil {
+			return services, fmt.Errorf("unable to create service logs for service %s: %w", s.GetName(), err)
+		}
+	}
+
+	return services, nil
+}
+
 // cleanBuild is a helper function to kill the build
 // without execution. This will kill all resources,
 // like steps and services, for the build in the