fix: Fix pathType warnings on ingress resources

[bnevis-i]

Closes #21

PR Checklist

Please check if your PR fulfills the following requirements:

• [X] I am not introducing a breaking change (if you are, flag in conventional commit message with BREAKING CHANGE: describing the break)
• [X] I have fully tested (add details below) this the new feature or bug fix (if not, why?)
• [ ] I have opened a PR for the related docs change (if not, why?)

Testing Instructions

Install helm chart as usual

[jim-wang-intel]

don't remember what version of Kubernetes we required, only version 1.18 or above has this pathType feature

https://docs.nginx.com/nginx-ingress-controller/configuration/ingress-resources/basic-configuration/ in section New Features Available in Kubernetes 1.18 and Above

[bnevis-i]

don't remember what version of Kubernetes we required, only version 1.18 or above has this pathType feature

https://docs.nginx.com/nginx-ingress-controller/configuration/ingress-resources/basic-configuration/ in section New Features Available in Kubernetes 1.18 and Above

https://kubernetes.io/releases/

The Kubernetes project maintains release branches for the most recent three minor releases (1.28, 1.27, 1.26). Kubernetes 1.19 and newer receive approximately 1 year of patch support. Kubernetes 1.18 and older received approximately 9 months of patch support.

1.17 reached end of support on 25 Dec 2020. (https://endoflife.date/kubernetes)

[jim-wang-intel]

don't remember what version of Kubernetes we required, only version 1.18 or above has this pathType feature

https://docs.nginx.com/nginx-ingress-controller/configuration/ingress-resources/basic-configuration/ in section New Features Available in Kubernetes 1.18 and Above

https://kubernetes.io/releases/

The Kubernetes project maintains release branches for the most recent three minor releases (1.28, 1.27, 1.26). Kubernetes 1.19 and newer receive approximately 1 year of patch support. Kubernetes 1.18 and older received approximately 9 months of patch support.

1.17 reached end of support on 25 Dec 2020. (https://endoflife.date/kubernetes)

ok, it is interesting in that ngnix docs, it says The ImplementationSpecific pathType is treated as equivilent to Prefix pathType, with the exception that when this pathType is configured, the path field in spec.rules[].http.paths[] is not mandatory. path defaults to / if not set but the pathType is set to ImplementationSpecific.

[bnevis-i]

ok, it is interesting in that ngnix docs, it says The ImplementationSpecific pathType is treated as equivilent to Prefix pathType, with the exception that when this pathType is configured, the path field in spec.rules[].http.paths[] is not mandatory. path defaults to / if not set but the pathType is set to ImplementationSpecific.

I can't make sense of that, but the regexp is needed for the rewrite rule and when I use ImplementationSpecific the warning goes away :-)

[jim-wang-intel]

ok, it is interesting in that ngnix docs, it says The ImplementationSpecific pathType is treated as equivilent to Prefix pathType, with the exception that when this pathType is configured, the path field in spec.rules[].http.paths[] is not mandatory. path defaults to / if not set but the pathType is set to ImplementationSpecific.

I can't make sense of that, but the regexp is needed for the rewrite rule and when I use ImplementationSpecific the warning goes away :-)

probably that's some implementation details inside helm or kube which we don't know...