ENTMQSTPR-47: Record validation example with Red Hat build of Apicurio Registry

[k-wall]

ENTMQSTPR-48: record validation example

why: 2.8 supports record validation against JSON schemas in Apicurio Schema Registry.

Note: When testing the example, switch the image to the upstream.'s

quay.io/kroxylicious/kroxylicious:0.8.0

[SamBarker]

Off to a good start @k-wall

[k-wall]

Still need to think about whether we want a version of the example that does load-balancer.

[k-wall]

I think this is ready for review.

[PaulRMellor]

Looks good, Keith. Few minor suggestions for consistency. Also question on using 2.7 image.

[k-wall]

Looks good, Keith. Few minor suggestions for consistency. Also question on using 2.7 image.

#505 will update all the examples to 2.8.

[k-wall]

@franvila would you be able to review this too?

[SamBarker]

LGTM.

I'd like to find some way of cleaning up the snippets but that applies a lot wider than this PR and isn't required for this to be merged.

[k-wall]

I'd like to find some way of cleaning up the snippets but that applies a lot wider than this PR and isn't required for this to be merged.

I raised a couple of issues off the back of your comments.

#512
#513

[franvila]

LGTM. Some small nits