update at 2024-04-24 19:32:46
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# 在 Kubernetes 上部署 llama3
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## 准备 namespace
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准备一个 namespace,用于部署运行 llama3 所需的服务,这里使用 `llama` namespace:
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```bash
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kubectl create ns llama
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```
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## 部署 ollama
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```yaml showLineNumbers
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: ollama
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namespace: llama
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spec:
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serviceName: "ollama"
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replicas: 1
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selector:
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matchLabels:
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app: ollama
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template:
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metadata:
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labels:
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app: ollama
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spec:
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initContainers:
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- name: pull
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image: ollama/ollama:latest
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tty: true
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stdin: true
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command:
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- bash
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- -c
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- |
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# highlight-next-line
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model="llama3:8b" # 替换需要使用的模型,模型库列表: https://ollama.com/library/llama3
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ollama serve &
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sleep 5 # 等待 ollama server 就绪,就绪后才能执行 ollama cli 工具的命令
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result=`ollama list | grep $model`
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if [ "$result" == "" ]; then
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echo "downloading model $model"
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ollama pull $model
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else
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echo "model $model already been downloaded"
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fi
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volumeMounts:
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- name: ollama-volume
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mountPath: /root/.ollama
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containers:
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- name: ollama
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image: ollama/ollama:latest
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ports:
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- containerPort: 11434
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volumeMounts:
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- name: ollama-volume
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mountPath: /root/.ollama
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tty: true
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stdin: true
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volumeClaimTemplates:
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- metadata:
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name: ollama-volume
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spec:
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accessModes: ["ReadWriteOnce"]
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resources:
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requests:
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# highlight-next-line
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storage: 50Gi # 注意磁盘容量能够容纳模型体积
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: ollama
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namespace: llama
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labels:
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app: ollama
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spec:
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type: ClusterIP
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ports:
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- port: 11434
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protocol: TCP
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targetPort: 11434
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selector:
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app: ollama
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```
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## 部署 open-webui
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open-webui 是大模型的 web 界面,支持 llama 系列的大模型,通过 API 与 ollama 通信,官方镜像地址是:`ghcr.io/open-webui/open-webui`,在国内拉取速度非常慢,可以替换成 docker hub 里长期自动同步的 mirror 镜像:`docker.io/imroc/open-webui`:
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```yaml showLineNumbers
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: webui
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namespace: llama
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: webui
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template:
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metadata:
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labels:
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app: webui
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spec:
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containers:
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- name: webui
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image: imroc/open-webui:main
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env:
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- name: OLLAMA_BASE_URL
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# highlight-next-line
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value: http://ollama:11434 # ollama 的地址
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: webui
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namespace: llama
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labels:
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app: webui
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spec:
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type: ClusterIP
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ports:
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- port: 8080
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protocol: TCP
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targetPort: 8080
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selector:
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app: webui
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```
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## 打开 webui
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你有很多方式可以将 open-webui 暴露给集群外访问,比如 LoadBalancer 类型 Service、Ingress 等,也可以直接用 `kubectl port-forward` 的方式将 webui 暴露到本地:
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```bash
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kubectl -n llama port-forward service/webui 8080:8080
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```
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浏览器打开:`http://localhost:8080`,创建账号然后进入 web 界面,选择 llama3 的模型,然后开启对话。
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## 参考资料
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* Llama3 模型库:https://ollama.com/library/llama3
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* Open WebUI: https://docs.openwebui.com/
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* Ollama: https://ollama.com/
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@ -7,9 +7,6 @@ const sidebars: SidebarsConfig = {
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type: 'category',
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label: '云原生家庭网络',
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collapsed: false,
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customProps: {
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},
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link: {
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type: 'generated-index',
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slug: '/home-network'
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@ -32,6 +29,7 @@ const sidebars: SidebarsConfig = {
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'home-network/homepage',
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]
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},
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'llama3',
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],
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};
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