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Posted to notifications@apisix.apache.org by "debuggedme (via GitHub)" <gi...@apache.org> on 2025/03/30 02:24:43 UTC
[I] request help: cross-namespace usage in ApisixCRDs [apisix-ingress-controller]
debuggedme opened a new issue, #2376:
URL: https://github.com/apache/apisix-ingress-controller/issues/2376
### Issue description
So far, I can only write a backends + (upstream in plugins), which feels stylistically fragmented but does work!
```yaml
apiVersion: apisix.apache.org/v2
kind: ApisixRoute
metadata:
name: httpbin-apisixroute
spec:
http:
- name: httpbin-apisixroute
match:
hosts:
- httpbin.local
paths:
- /*
backends:
- serviceName: httpbin-svc
servicePort: 80
plugins:
- name: traffic-split
enable: true
config:
rules:
- match:
- vars:
- ["arg_ver", "==", "h11"]
weighted_upstreams:
- upstream:
name: h1
type: roundrobin
nodes:
httpbin-h1-svc.ingress-apisix:80: 1
```
In [this link](https://github.com/apache/apisix-ingress-controller/blob/v1.8.4/pkg/kube/apisix/apis/config/v2/types.go#L73), the ApisixUpstreamCRD reference is used. I'm wondering why ApisixUpstream cannot be directly defined anonymously. Based on the [concepts](https://apisix.apache.org/docs/ingress-controller/concepts/apisix_upstream/#load-balancing), I tried defining an upstream with the same name as the service, but it didn’t take effect. It seems to require at least ExternalNodes or Discovery. Why can't a node be directly defined here?
Looking at the source code, I found that backends are also parsed through traffic-split. While they are unified at the underlying level, their definitions are fragmented.
Reference: [apisix_route.go#L187](https://github.com/apache/apisix-ingress-controller/blob/v1.8.4/pkg/providers/apisix/translation/apisix_route.go#L187)
I would like to know: since backends currently do not support cross-namespace functionality, how can I achieve cross-namespace support?
- If ApisixUpstreamCRD could directly define a node, would this issue still exist? Is my understanding correct?
- [Cross-namespace references](https://apisix.apache.org/docs/ingress-controller/concepts/annotations/#cross-namespace-references): Why is cross-namespace referencing supported in IngressCRD, but not in ApisixRoute?
- Is it necessary to define [https://apisix.apache.org/docs/ingress-controller/concepts/apisix_tls/]to enable HTTPS access? The tls field in Ingress does not seem to take effect, but after defining apisix_tls, it worked correctly.
### Environment
- your apisix-ingress-controller version (output of apisix-ingress-controller version --long): 1.8.0
- your Kubernetes cluster version (output of kubectl version): 1.31.x
- if you run apisix-ingress-controller in Bare-metal environment, also show your OS version (uname -a): amd64-linux
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Re: [I] request help: cross-namespace usage in ApisixCRDs [apisix-ingress-controller]
Posted by "debuggedme (via GitHub)" <gi...@apache.org>.
debuggedme closed issue #2376: request help: cross-namespace usage in ApisixCRDs
URL: https://github.com/apache/apisix-ingress-controller/issues/2376
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