[Feature]: context root support for ingress

[stanworld]

Requirement

We have a domain name used for our applications in a cluster (mydomain.com), and would like to add jaeger support at mydomain.com/jaeger

Problem

When I try to create a ingress backed up jaeger-query service like:

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: my-jaeger
spec:
ingressClassName: nginx
rules:

• host: mydomain.com
  http:
  paths:
  • path: /jaeger
    pathType: Prefix
    backend:
    service:
    name: my-jaeger-jaeger-operator-jaeger-query
    port:
    number: 16686
    , the jaeger UI will have some js errors, indicating:

Refused to apply style from 'http://mydomain.com:9080/static/index-c3b54a40.css' because its MIME type ('text/plain') is not a supported stylesheet MIME type, and strict MIME checking is enabled.
jaeger:41 GET http://mydomain.com:9080/static/index-5a1abd6a.js net::ERR_ABORTED 401 (Unauthorized)

Proposal

No response

Open questions

No response

[stanworld]

This is like a follow up for the host support at issue:

#135

[iblancasa]

Thanks for creating the issue. Would you like to send a PR? @stanworld

[stanworld]

@iblancasa , I love to help but frankly I am quite new to this, and not sure where to get started. If someone can give some suggestions, I'd give a try.

[iblancasa]

@stanworld awesome!

1. You will need to check what is missing in the Ingress object created by the operator
2. Check pkg/ingress/query.go to see how Ingress objects are created
3. Add an option to Jaeger.Spec.Query.Options similar to query.base-path for your missing fields. Or maybe, it can be a new field in Jaeger.Spec.Ingress.Options`.
4. Add the missing stuff to the creation of the Ingress object
5. Add an unit test
6. Send your PR!

[stanworld]

I think the issue is not within the ingress creation piece but how jaeger operator handles an ingress with a path. The template posted in the problem will actually create an ingress like mydomain.com/jaeger, but it seems js/css doesn't know how to handle it.

[iblancasa]

@stanworld Is it a behavior you can reproduce without the operator? Because, in that case, it would make more sense to open an issue in the Jaeger repo