✨ feat: add plugin registry and server operations

operator/internal/resources/common.go

@@ -15,7 +15,7 @@ const (
 	MinecraftImage       = "itzg/minecraft-server"
 	ProxyImage           = "itzg/mc-proxy:latest"
 	ContainerPort        = 25565
-	DefaultHeapPercent   = 80
+	DefaultHeapPercent   = 60
 	DefaultMemoryLimitMB = 2048
 	MinHeapMB            = 256
 )

operator/internal/resources/common_test.go

@@ -16,12 +16,12 @@ func TestHeapMB(t *testing.T) {
 		heapPercent int32
 		want        string
 	}{
-		{"default percent when unset", 2048, 0, "1638M"},
+		{"default percent when unset", 2048, 0, "1228M"},
 		{"explicit percent", 2048, 50, "1024M"},
-		{"out of range falls back", 1024, 150, "819M"},
+		{"out of range falls back", 1024, 150, "614M"},
 		{"floor applies to tiny limits", 128, 80, "256M"},
 		{"full allocation", 1000, 100, "1000M"},
-		{"zero limit uses default memory", 0, 80, "1638M"},
+		{"zero limit uses default memory", 0, 60, "1228M"},
 	}
 
 	for _, tt := range tests {

operator/internal/resources/minecraftserver.go

@@ -113,8 +113,12 @@ func minecraftPodSpec(mc *v1alpha1.MinecraftServer, stateful bool) corev1.PodSpe
 
 	return corev1.PodSpec{
 		Containers: []corev1.Container{{
-			Name:  "minecraft",
-			Image: MinecraftImage,
+			Name:    "minecraft",
+			Image:   MinecraftImage,
+			Command: []string{"/bin/sh", "-c"},
+			Args: []string{
+				"rm -f /tmp/minikura-console && mkfifo /tmp/minikura-console && exec 3<>/tmp/minikura-console && exec /start <&3",
+			},
 			Ports: []corev1.ContainerPort{{
 				Name:          "minecraft",
 				ContainerPort: ContainerPort,
@@ -132,10 +136,14 @@ func MinecraftDeployment(mc *v1alpha1.MinecraftServer) *appsv1.Deployment {
 	name := ServerName(mc.Name)
 	labels := ServerLabels(mc)
 
+	replicas := int32(1)
+	if mc.Spec.Running != nil && !*mc.Spec.Running {
+		replicas = 0
+	}
 	return &appsv1.Deployment{
 		ObjectMeta: ObjectMeta(name, mc.Namespace, labels),
 		Spec: appsv1.DeploymentSpec{
-			Replicas: ptr(int32(1)),
+			Replicas: ptr(replicas),
 			Selector: &metav1.LabelSelector{MatchLabels: SelectorLabels(name)},
 			Template: corev1.PodTemplateSpec{
 				ObjectMeta: metav1.ObjectMeta{Labels: labels},
@@ -158,11 +166,15 @@ func MinecraftStatefulSet(mc *v1alpha1.MinecraftServer) (*appsv1.StatefulSet, er
 		return nil, fmt.Errorf("invalid storageSize %q: %w", size, err)
 	}
 
+	replicas := int32(1)
+	if mc.Spec.Running != nil && !*mc.Spec.Running {
+		replicas = 0
+	}
 	return &appsv1.StatefulSet{
 		ObjectMeta: ObjectMeta(name, mc.Namespace, labels),
 		Spec: appsv1.StatefulSetSpec{
 			ServiceName: name,
-			Replicas:    ptr(int32(1)),
+			Replicas:    ptr(replicas),
 			Selector:    &metav1.LabelSelector{MatchLabels: SelectorLabels(name)},
 			Template: corev1.PodTemplateSpec{
 				ObjectMeta: metav1.ObjectMeta{Labels: labels},

operator/internal/resources/minecraftserver_test.go

@@ -153,6 +153,37 @@ func TestStatelessHasNoDataVolume(t *testing.T) {
 	}
 }
 
+func TestMinecraftUsesPersistentConsolePipe(t *testing.T) {
+	podSpec := minecraftPodSpec(testServer(), true)
+	container := podSpec.Containers[0]
+
+	if len(container.Command) != 2 || container.Command[0] != "/bin/sh" {
+		t.Fatalf("command = %v, want shell wrapper", container.Command)
+	}
+	if len(container.Args) != 1 || container.Args[0] != "rm -f /tmp/minikura-console && mkfifo /tmp/minikura-console && exec 3<>/tmp/minikura-console && exec /start <&3" {
+		t.Fatalf("args = %v, want persistent console pipe", container.Args)
+	}
+}
+
+func TestStoppedServerHasZeroReplicas(t *testing.T) {
+	mc := testServer()
+	stopped := false
+	mc.Spec.Running = &stopped
+
+	dep := MinecraftDeployment(mc)
+	if dep.Spec.Replicas == nil || *dep.Spec.Replicas != 0 {
+		t.Fatalf("deployment replicas = %v, want 0", dep.Spec.Replicas)
+	}
+
+	sts, err := MinecraftStatefulSet(mc)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if sts.Spec.Replicas == nil || *sts.Spec.Replicas != 0 {
+		t.Fatalf("statefulset replicas = %v, want 0", sts.Spec.Replicas)
+	}
+}
+
 func TestMinecraftConfigMap(t *testing.T) {
 	cm := MinecraftConfigMap(testServer())
 	if cm.Name != "minecraft-smp-config" {