Missing broker defaults in eventing.yaml

[aliok]

Describe the bug
After #2936, when I build the release yamls using ./hack/release.sh --skip-tests, I don't see config-br-default-channel and config-br-defaults in the release manifest `eventing.yaml.

Expected behavior
Default broker config to be included in the release manifest, eventing.yaml.

Contents of these 2 files should be in the output:

• 400-config-br-default-channel.yaml
• 400-config-br-defaults.yaml.

To Reproduce
Do ./hack/release.sh --skip-tests, check the resulting eventing.yaml file.

Knative release version
0.13

Additional context
Basically the comment: #2936 (comment)

[aliok]

Could be 2 ways to fix it:

• Adding 400-config-br-default-channel.yaml and 400-config-br-defaults.yaml to the release manifest manually:

  eventing/hack/release.sh

  Line 36 in e5d39ee

  ["eventing.yaml"]="eventing-core.yaml channel-broker.yaml mt-channel-broker.yaml in-memory-channel.yaml"

• Moving those files back, but only having them in channel-broker

[matzew]

@aliok

my bad!

• https://github.com/knative/eventing/blob/master/config/400-config-br-default-channel.yaml
• https://github.com/knative/eventing/blob/master/config/400-config-br-defaults.yaml

need to go into core folder

and the two 400-config-br-XXXX should be symlinks to that - OK ?

Can you PR that ?

[aliok]

That's a better solution!