Support SASL mechanism PLAIN

[pierDipi]

Fixes #794

Strimzi doesn't support this, so we can't test this E2E :(

Proposed Changes

• Support SASL mechanism PLAIN

Support SASL mechanism PLAIN.

[codecov]

Codecov Report

Merging #840 (d9fd4fd) into main (c809ce3) will decrease coverage by 0.03%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main     #840      +/-   ##
============================================
- Coverage     76.57%   76.53%   -0.04%     
  Complexity      440      440              
============================================
  Files            77       77              
  Lines          2924     2924              
  Branches        133      133              
============================================
- Hits           2239     2238       -1     
- Misses          534      535       +1     
  Partials        151      151              

Flag	Coverage Δ	Complexity Δ
java-unittests	80.20% <100.00%> (-0.06%)	440.00 <4.00> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ	Complexity Δ
control-plane/pkg/security/config.go	53.33% <ø> (ø)	0.00 <0.00> (ø)
...fka/broker/core/security/CredentialsValidator.java	93.93% <100.00%> (ø)	23.00 <4.00> (+1.00)
...dispatcher/consumer/impl/BaseConsumerVerticle.java	90.00% <0.00%> (-3.34%)	8.00% <0.00%> (-1.00%)

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[slinkydeveloper]

/lgtm
/approve

[knative-prow-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: slinkydeveloper

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[knative-prow-robot]

@pierDipi: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-knative-sandbox-eventing-kafka-broker-go-coverage	d9fd4fd	link	/test pull-knative-sandbox-eventing-kafka-broker-go-coverage

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[pierDipi]

/test pull-knative-sandbox-eventing-kafka-broker-unit-tests

[pierDipi]

/cherry-pick release-0.22

[knative-prow-robot]

@pierDipi: #840 failed to apply on top of branch "release-0.22":

Applying: Support SASL mechanism PLAIN
Using index info to reconstruct a base tree...
M	data-plane/THIRD-PARTY.txt
Falling back to patching base and 3-way merge...
Auto-merging data-plane/THIRD-PARTY.txt
CONFLICT (content): Merge conflict in data-plane/THIRD-PARTY.txt
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 Support SASL mechanism PLAIN
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherry-pick release-0.22

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.