是否可以在k8s Ingress Controller中重写HOST标头? [英] Is it possible to rewrite HOST header in k8s Ingress Controller?

问题描述

由于某些依赖于Host标头才能正常运行的旧版应用程序，我需要拥有一个Ingress(代理等)，它能够重写Host标头并将其传递给下游(后端).是否有任何支持此功能的Ingress Controller?

Due to some legacy application that relies on Host header to function correctly, I need to have an Ingress (proxy, etc) that capable of rewrite Host header and pass that to downstream (backend). Is there any Ingress Controller that supports this functionality?

示例:

最终用户通过foo.com/a进入后端a并通过foo.com/b进入后端b进入我们的网站.但是，由于a和b是旧版应用，因此它仅接受:

End user access our website through foo.com/a for backend a and foo.com/b for backend b. But since a and b are legacy app, it only accept:

• a在Host: a.foo.com
时接受连接
• b在Host: b.foo.com
时接受连接

• a accepts connection when Host: a.foo.com
• b accepts connection when Host: b.foo.com

推荐答案

这可以使用以下注释来完成:nginx.ingress.kubernetes.io/upstream-vhost: host.example.com

This can be done using this annotation: nginx.ingress.kubernetes.io/upstream-vhost: host.example.com

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