Update chart to support IngressClass

[wheam2002]

Signed-off-by: Sheng-Kai wheam2002@gmail.com

Description

Motivation and Context

Fixed #895

• I have raised an issue to propose this change (required)

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s
• I have added tests to cover my changes.
• All new and existing tests passed.

[LucasRoesler]

@alexellis i tested this using

$ helm template foo ./chart/openfaas  --set ingress.enabled="true" --set ingress.ingressClassName=bar
$ helm template foo ./chart/openfaas   --set ingress.enabled="true"
$ helm template foo ./chart/openfaas  

they all worked as expected.

[LucasRoesler]

@alexellis can you put this into your queue?

[sqaisar]

@alexellis @LucasRoesler
When this issue will be released?

[LucasRoesler]

@sqaisar, @alexellis is the only one with merge permissions, but I will bring this up on the Wednesday office hours call openfaas/faas#1683

[pype-leila]

@LucasRoesler Is there any update here?

[LucasRoesler]

@pype-leila unfortunately, i can't do anything, @alexellis is the only one that can merge this.

[alexellis]

Approved