61 lines
1.5 KiB
Markdown
61 lines
1.5 KiB
Markdown
# Traefik Ingress Controller
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我们在前面部署了 [Traefik](https://traefik.io) 作为 Ingress Controller,如果集群外部直接访问 Kubenetes 内部服务的话,可以直接创建 Ingress 如下所示:
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```yaml
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apiVersion: extensions/v1beta1
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kind: Ingress
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metadata:
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name: traefik-ingress
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namespace: default
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spec:
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rules:
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- host: traefik.nginx.io
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http:
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paths:
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- path: /
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backend:
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serviceName: my-nginx
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servicePort: 80
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```
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## Traefik Ingress Controller
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当我们处于迁移应用到 Kubernetes 上的阶段时,可能有部分服务实例不在 Kubernetes上,服务的路由使用 Nginx 配置,这时处于 nginx 和 ingress 共存的状态。参考下面的配置:
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```yaml
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apiVersion: extensions/v1beta1
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kind: Ingress
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metadata:
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name: td-ingress
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namespace: default
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annotations:
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traefik.frontend.rule.type: PathPrefixStrip
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kubernetes.io/ingress.class: traefik
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spec:
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rules:
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- host: "*.jimmysong.io"
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http:
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paths:
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- path: /docGenerate
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backend:
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serviceName: td-sdmk-docgenerate
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servicePort: 80
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```
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注意 **annotation** 的配置:
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- `traefik.frontend.rule.type: PathPrefixStrip`:表示将截掉 URL 中的 `path`
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- `kubernetes.io/ingress.class`:表示使用的 ingress 类型
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在 Nginx 中增加配置:
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```ini
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upstream docGenerate {
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server 172.20.0.119:80;
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keepalive 200;
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}
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```
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172.20.0.119 是我们的边缘节点的 VIP,见[边缘节点配置](../practice/edge-node-configuration.md)。
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