Default newly launched applications to auto suspend

Continue to default applications to auto stop if:
  * a GPU is present
  * more than 2G of RAM is requested

internal/command/launch/launch.go

@@ -6,8 +6,10 @@ import (
 	"path/filepath"
 	"strings"
 
+	"github.com/docker/go-units"
 	fly "github.com/superfly/fly-go"
 	"github.com/superfly/fly-go/flaps"
+	"github.com/superfly/flyctl/helpers"
 	"github.com/superfly/flyctl/internal/appconfig"
 	"github.com/superfly/flyctl/internal/command/launch/plan"
 	"github.com/superfly/flyctl/internal/flag"
@@ -169,12 +171,34 @@ func (state *launchState) updateConfig(ctx context.Context) {
 	if state.env != nil {
 		state.appConfig.SetEnvVariables(state.env)
 	}
+
+	state.appConfig.Compute = state.Plan.Compute
+
 	if state.Plan.HttpServicePort != 0 {
+		// default to autostop: suspend
+		autostop := fly.MachineAutostopSuspend
+
+		// if any compute has a GPU or more than 2GB of memory, set autostop to stop
+		for _, compute := range state.appConfig.Compute {
+			if compute.GPUKind != "" {
+				autostop = fly.MachineAutostopStop
+				break
+			}
+
+			if compute.Memory != "" {
+				mb, err := helpers.ParseSize(compute.Memory, units.RAMInBytes, units.MiB)
+				if err != nil || mb >= 2048 {
+					autostop = fly.MachineAutostopStop
+					break
+				}
+			}
+		}
+
 		if state.appConfig.HTTPService == nil {
 			state.appConfig.HTTPService = &appconfig.HTTPService{
 				ForceHTTPS:         true,
 				AutoStartMachines:  fly.Pointer(true),
-				AutoStopMachines:   fly.Pointer(fly.MachineAutostopStop),
+				AutoStopMachines:   fly.Pointer(autostop),
 				MinMachinesRunning: fly.Pointer(0),
 				Processes:          []string{"app"},
 			}
@@ -183,7 +207,6 @@ func (state *launchState) updateConfig(ctx context.Context) {
 	} else {
 		state.appConfig.HTTPService = nil
 	}
-	state.appConfig.Compute = state.Plan.Compute
 }
 
 // createApp creates the fly.io app for the plan