gke-inference

Развёртывание AI-моделей в GKE

google/skillsОт разработчика платформы
21 136звёзд1 762форковУ всего репозитория

Что получите

Конфигурация Kubernetes для обслуживания модели, развёрнутая в GKE, с настройками ресурсов и масштабирования по задаче.

Что передать

Модель, целевой кластер и регион, предпочтения по ускорителю и серверу, требования к задержке и нагрузке.

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Как использовать

Помогает инженерам запускать обслуживание AI-моделей в GKE и подбирать для него GPU или TPU. Охватывает выбор сервера модели, подготовку конфигурации Kubernetes и автоматическое масштабирование.

  1. Проверьте поддерживаемые сочетания модели, ускорителя и сервера.
  2. Подготовьте конфигурацию Kubernetes и перед развёртыванием проверьте незаполненные параметры, секреты и хранилища.
  3. Определите показатели масштабирования и настройте баланс между задержкой, загрузкой ускорителя и временем запуска модели.

Условия работы

  • Нужны кластер GKE Autopilot по рекомендуемой схеме, авторизованный gcloud и достаточная региональная квота GPU или TPU.
  • Сочетание модели, ускорителя и сервера должно поддерживаться профилями GKE; некоторые модели требуют токен Hugging Face, сохранённый в Kubernetes Secret.
  • Скилл предназначен для обслуживания моделей; обычные пакетные задания и очереди высокопроизводительных вычислений относятся к другому скиллу.

Пример запроса после установки

Подготовь развёртывание Gemma в GKE Autopilot: подбери поддерживаемый ускоритель, создай конфигурацию и предложи масштабирование для переменной нагрузки с учётом задержки ответов и времени загрузки модели.

Пример составлен по инструкции автора; результат запуска не проверялся.

Основание: инструкция закреплённой версии

Для установки

Node.js, npm и Git для команды выше. Подключения и инструменты для работы скилла настраиваются отдельно.

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Файлы скилла

GitHub
Читать инструкцию SKILL.md

Исходный текст закреплённой версии.

---
name: gke-inference
description: >-
  Deploys and optimizes AI/ML inference workloads on GKE, using GPUs, TPUs, and
  model servers. Use when deploying GKE inference servers, configuring GKE GPU
  resources for inference, or deploying LLMs on GKE. Don't use for generic
  batch jobs or HPC task queues (use gke-batch-hpc instead).
metadata:
  category: Containers
---

# GKE AI/ML Inference

This reference covers deploying AI/ML inference workloads on GKE using Google's
Inference Quickstart (GIQ) and best practices for LLM serving.

> **MCP Tools:** `apply_k8s_manifest`, `get_k8s_resource`, `get_k8s_logs`,
> `get_k8s_rollout_status`, `describe_k8s_resource`, `list_k8s_events`.
> **CLI-only:** `gcloud container ai profiles *`

## When to Use

-   Deploy an AI model (Llama, Gemma, Mistral, etc.) to GKE
-   Generate optimized Kubernetes manifests for inference
-   Select GPU/TPU accelerators for model serving
-   Configure autoscaling for LLM inference

## Prerequisites

-   A golden path GKE Autopilot cluster (GPU workloads are supported via
    ComputeClasses and NAP)
-   `gcloud` CLI authenticated
-   Sufficient GPU/TPU quota in the target region

## Workflow

### 1. Discovery: Find Models and Hardware

```bash
# List all supported models
gcloud container ai profiles models list --quiet

# Find valid accelerator/server combinations for a model
gcloud container ai profiles list --model=<MODEL_NAME> --quiet

# Example: what can run Gemma 2 9B?
gcloud container ai profiles list --model=gemma-2-9b-it --quiet
```

### 2. Generate Manifest

```bash
gcloud container ai profiles manifests create \
  --model=<MODEL_NAME> \
  --model-server=<SERVER> \
  --accelerator-type=<ACCELERATOR> \
  --target-ntpot-milliseconds=<NTPOT> --quiet > inference.yaml
```

**Parameters:**

-   `--model`: Model ID (e.g., `gemma-2-9b-it`, `llama-3-8b`)
-   `--model-server`: Inference server (`vllm`, `tgi`, `triton`, `tensorrt-llm`)
-   `--accelerator-type`: GPU/TPU type (`nvidia-l4`, `nvidia-tesla-a100`,
    `nvidia-h100-80gb`)
-   `--target-ntpot-milliseconds`: Target Normalized Time Per Output Token
    (optional, for latency optimization)

**Example:**

```bash
gcloud container ai profiles manifests create \
  --model=gemma-2-9b-it \
  --model-server=vllm \
  --accelerator-type=nvidia-l4 \
  --target-ntpot-milliseconds=50 --quiet > inference.yaml
```

### 3. Review and Deploy

```bash
# Review for placeholders (HF tokens, PVCs)
cat inference.yaml

# Deploy
kubectl apply -f inference.yaml

# Monitor
kubectl get pods -w
kubectl logs -f <POD_NAME>
```

> Some models require Hugging Face tokens. Create a Kubernetes Secret and
> reference it in the manifest.

## GPU ComputeClass for Inference

For Autopilot clusters, create a ComputeClass to target GPU nodes:

```yaml
apiVersion: cloud.google.com/v1
kind: ComputeClass
metadata:
  name: l4-inference
spec:
  priorities:
  - machineFamily: g2
    gpu:
      type: nvidia-l4
      count: 1
    minCores: 4
    minMemoryGb: 16
```

## Accelerator Selection Guide

| Accelerator         | Best For                 | Memory      | Relative Cost |
| ------------------- | ------------------------ | ----------- | ------------- |
| NVIDIA T4           | Budget inference,        | 16 GB       | Lowest        |
:                     : lightweight legacy       :             :               :
:                     : models                   :             :               :
| NVIDIA L4 (G2)      | Small-medium model       | 24 GB       | Low           |
:                     : inference, video,        :             :               :
:                     : graphics                 :             :               :
| NVIDIA RTX PRO 6000 | Multimodal AI,           | 96 GB       | Medium        |
: (G4)                : high-fidelity 3D,        :             :               :
:                     : fine-tuning              :             :               :
| Cloud TPU v5e       | Cost-effective           | Varies      | Medium        |
:                     : transformer inference    :             :               :
| Cloud TPU v5p       | High-performance         | Varies      | High          |
:                     : training                 :             :               :
| Cloud TPU v6e       | High-efficiency next-gen | 32 GB/chip  | Medium-High   |
: (Trillium)          : training & serving       :             :               :
| Cloud TPU v7x       | Ultra-scale inference &  | 192 GB/chip | High          |
: (Ironwood)          : agentic workflows        :             :               :
| NVIDIA A100         | Large model inference,   | 40/80 GB    | High          |
:                     : enterprise ML            :             :               :
| NVIDIA H100 / H200  | Frontier model training, | 80/141 GB   | Highest       |
:                     : high throughput          :             :               :
| NVIDIA B200 (A4)    | Blackwell-scale          | 192 GB      | Highest       |
:                     : training, FP4 precision  :             :               :
| NVIDIA GB200 (A4X)  | Rack-scale AI (Grace     | Massive     | Highest       |
:                     : Blackwell Superchip)     :             :               :

## Autoscaling LLM Inference

### GPU-based autoscaling

Use custom metrics for GPU utilization:

```yaml
apiVersion: autoscaling/v2
kind: HorizontalPodAutoscaler
metadata:
  name: llm-hpa
spec:
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: llm-server
  minReplicas: 1
  maxReplicas: 10
  metrics:
  - type: Pods
    pods:
      metric:
        name: gpu_duty_cycle
      target:
        type: AverageValue
        averageValue: "80"
```

### Best practices for inference autoscaling

1.  **Use DCGM metrics**: Golden path enables DCGM monitoring for GPU
    utilization metrics
2.  **Set appropriate minReplicas**: At least 1 for always-on serving; 0 for
    batch/on-demand
3.  **Tune scale-down delay**: LLM model loading is slow; use longer
    stabilization windows
4.  **Consider queue depth**: Scale on pending requests rather than pure GPU
    utilization for latency-sensitive workloads

## Optimization Tips

-   **Quantization**: Use quantized models (GPTQ, AWQ) to reduce GPU memory and
    increase throughput
-   **Batching**: Configure model server batch size for throughput vs latency
    trade-off
-   **Tensor parallelism**: Split large models across multiple GPUs within a
    node
-   **KV cache optimization**: Tune `--gpu-memory-utilization` in vLLM for KV
    cache allocation

## Troubleshooting

| Issue              | Cause                    | Fix                         |
| ------------------ | ------------------------ | --------------------------- |
| Invalid            | Unsupported tuple        | Re-run `gcloud container ai |
: model/accelerator  :                          : profiles list               :
: combination        :                          : --model=<MODEL>`            :
| GPU quota exceeded | Regional quota limit     | Request quota increase or   |
:                    :                          : try a different region      :
| OOM on GPU         | Model too large for      | Use larger GPU, enable      |
:                    : accelerator              : quantization, or use tensor :
:                    :                          : parallelism                 :
| Slow cold start    | Large model loading from | Use local SSD for model     |
:                    : registry                 : caching; pre-pull images    :

Проверка и особенности

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Автоматически сверены публичный репозиторий, лицензия, YAML-заголовок SKILL.md, состав папки и Git-хеш каждого файла. Исполняемые файлы и срабатывания статических правил исключены из этой партии. Ручной аудит всех инструкций и проверка работы не проводились; эта проверка не гарантирует безопасность. Команда закреплена на проверенном коммите.

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