feat: allow to filter machines for global service deployments

internal/cli/client/deploy.go

@@ -7,6 +7,7 @@ import (
 	"github.com/distribution/reference"
 	"strings"
 	"uncloud/internal/api"
+	"uncloud/internal/machine/api/pb"
 	"uncloud/internal/secret"
 )
 
@@ -25,6 +26,10 @@ type Plan struct {
 	SequenceOperation
 }
 
+// MachineFilter determines which machines participate in a deployment operation by returning true for
+// machines that should be included.
+type MachineFilter func(m *pb.MachineInfo) bool
+
 // NewDeployment creates a new deployment for the given service specification.
 // If strategy is nil, a default RollingStrategy will be used.
 func (cli *Client) NewDeployment(spec api.ServiceSpec, strategy Strategy) (*Deployment, error) {