✨ feat: add plugin registry and server operations

operator/api/v1alpha1/minecraftserver_types.go

@@ -60,13 +60,16 @@ type JVMOptions struct {
 
 	// +kubebuilder:validation:Minimum=1
 	// +kubebuilder:validation:Maximum=100
-	// +kubebuilder:default=80
+	// +kubebuilder:default=60
 	HeapPercent int32 `json:"heapPercent,omitempty"`
 }
 
 type MinecraftServerSpec struct {
 	Type ServerKind `json:"type"`
 
+	// +kubebuilder:default=true
+	Running *bool `json:"running,omitempty"`
+
 	// +optional
 	Description string `json:"description,omitempty"`
 

operator/api/v1alpha1/zz_generated.deepcopy.go

@@ -132,6 +132,11 @@ func (in *MinecraftServerList) DeepCopyObject() runtime.Object {
 // DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
 func (in *MinecraftServerSpec) DeepCopyInto(out *MinecraftServerSpec) {
 	*out = *in
+	if in.Running != nil {
+		in, out := &in.Running, &out.Running
+		*out = new(bool)
+		**out = **in
+	}
 	out.Resources = in.Resources
 	out.JVM = in.JVM
 	in.Properties.DeepCopyInto(&out.Properties)

operator/config/crd/minikura.kirameki.cafe_minecraftservers.yaml

@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.20.0
+    controller-gen.kubebuilder.io/version: v0.21.0
   name: minecraftservers.minikura.kirameki.cafe
 spec:
   group: minikura.kirameki.cafe
@@ -220,7 +220,7 @@ spec:
               jvm:
                 properties:
                   heapPercent:
-                    default: 80
+                  default: 60
                     format: int32
                     maximum: 100
                     minimum: 1
@@ -300,6 +300,9 @@ spec:
                     minimum: 256
                     type: integer
                 type: object
+              running:
+                default: true
+                type: boolean
               serviceType:
                 default: ClusterIP
                 enum:

operator/config/crd/minikura.kirameki.cafe_reverseproxyservers.yaml

@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.20.0
+    controller-gen.kubebuilder.io/version: v0.21.0
   name: reverseproxyservers.minikura.kirameki.cafe
 spec:
   group: minikura.kirameki.cafe

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" {