Add support for Kind in TLS Spec

[affix]

Signed-off-by: Keiran Smith contact@keiran.scot

Add support for ClusterIssuer by following the issuerRef Kind

Description

Uses a switch to determine the correct annotation based on TLS issuerRef

Motivation and Context

Fixes issue #8

How Has This Been Tested?

Tested on personal cluster

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)

Impact to existing users

Nothing

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.

[alexellis]

Hi Keiran,

Thanks for covering this.

One further change will be needed to local README and to add a unit test, plus one PR to the openfaas/docs repo.

Thanks,

Alex

[affix]

@alexellis Requirements met :)

[alexellis]

Please add the test after the merge of #7 so that we don't cross wires with Marcus

[alexellis]

Thank you @affix 💯