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chore(aws): document and test behavior for ALB and NLB#6063

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Jan 8, 2026
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chore(aws): document and test behavior for ALB and NLB#6063
k8s-ci-robot merged 8 commits intokubernetes-sigs:masterfrom
gofogo:chore-ingress-tests-5661

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@ivankatliarchuk
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@ivankatliarchuk ivankatliarchuk commented Dec 30, 2025

What does it do ?

I've added only tests, to explicitly capture behaviour and make it obvious. At the memont, to my understanding AWS ALB controller for NLB creates two hostnames, one prefixed with internal-.

I've explained solution here #5661 (comment).

If we think there are other options, like flag, annotation or some sort of regex or filter I could implement in this or follow-up PR.

It's great to have a better support for AWS ALB, like automated management of records, same time the ALB controller behaviour is quite unpredictable and not well documented. Happy to follow advice

Motivation

Fixes #5661

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  • Yes, this PR title follows Conventional Commits
  • Yes, I added unit tests
  • Yes, I updated end user documentation accordingly

Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Dec 30, 2025
@k8s-ci-robot k8s-ci-robot requested a review from szuecs December 30, 2025 00:39
@k8s-ci-robot k8s-ci-robot added the size/M Denotes a PR that changes 30-99 lines, ignoring generated files. label Dec 30, 2025
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coveralls commented Dec 30, 2025

Pull Request Test Coverage Report for Build 20618885687

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

Details

  • 0 of 0 changed or added relevant lines in 0 files are covered.
  • 384 unchanged lines in 23 files lost coverage.
  • Overall coverage decreased (-0.06%) to 78.861%

Files with Coverage Reduction New Missed Lines %
gateway_udproute.go 2 92.59%
gateway_grpcroute.go 2 92.59%
gateway_tlsroute.go 2 92.59%
gateway_httproute.go 2 92.59%
gateway_tcproute.go 2 92.59%
source.go 2 72.22%
openshift_route.go 3 85.0%
gateway_hostname.go 4 42.86%
contour_httpproxy.go 7 84.35%
skipper_routegroup.go 7 39.34%
Totals Coverage Status
Change from base Build 20569555245: -0.06%
Covered Lines: 15814
Relevant Lines: 20053

💛 - Coveralls

Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
@k8s-ci-robot k8s-ci-robot added docs size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Dec 30, 2025
Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
@mloiseleur mloiseleur changed the title chore(ingress): added tests to cover behaviour for AWS ALB and NLB test(ingress): cover behavior for AWS ALB and NLB Dec 30, 2025
@mloiseleur mloiseleur changed the title test(ingress): cover behavior for AWS ALB and NLB chore(aws): document and test behavior for ALB and NLB Dec 30, 2025
Co-authored-by: vflaux <38909103+vflaux@users.noreply.github.com>
@AndrewCharlesHay
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LGTM

@mloiseleur
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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Jan 8, 2026
@ivankatliarchuk
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/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ivankatliarchuk

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Jan 8, 2026
@k8s-ci-robot k8s-ci-robot merged commit f6b14aa into kubernetes-sigs:master Jan 8, 2026
18 checks passed
ivankatliarchuk added a commit to gofogo/k8s-sigs-external-dns-fork that referenced this pull request Jan 8, 2026
* master:
  fix(api): rollback changes for omitempty (kubernetes-sigs#6086)
  chore(deps): bump renovatebot/github-action (kubernetes-sigs#6080)
  fix(aws): enable AWS API validation for routing policies without setIdentifier (kubernetes-sigs#6082)
  chore(aws): document and test behavior for ALB and NLB (kubernetes-sigs#6063)
  chore(doc): Adding EKS Pod Identity Associations section for AWS (kubernetes-sigs#6084)
  chore(source)!: remove cloudfoundry support (kubernetes-sigs#6074)
  docs(source): autogenerate docs for sources with go-doc like style (kubernetes-sigs#6075)
  docs(rfc2136): document AXFR requirement for sync policy (kubernetes-sigs#6083)
@ivankatliarchuk ivankatliarchuk deleted the chore-ingress-tests-5661 branch January 9, 2026 01:00
ivankatliarchuk added a commit to gofogo/k8s-sigs-external-dns-fork that referenced this pull request Jan 16, 2026
* master: (25 commits)
  feat(event): standardize event messages and add resource kind lookup for events (kubernetes-sigs#6101)
  refactor(informers): unify cache sync functions using generics (kubernetes-sigs#6102)
  fix(fqdn): support kind and api version (kubernetes-sigs#6097)
  test(fqdn): cover sources without any fqdn tests (kubernetes-sigs#6094)
  chore(tools): CRD generation script moved and add validation workflow (kubernetes-sigs#6079)
  fix(metrics): add CNAME to known record types (kubernetes-sigs#6115)
  chore(cloudflare): migrate customhostname to v5 (kubernetes-sigs#5891)
  test(provider/exoscale): improved the test coverage for exoscale provider from 62.8% to 80.4%  (kubernetes-sigs#6112)
  feat(source): gateway api hostname source annotation (kubernetes-sigs#5959)
  test: cover pkg/events/fake package (kubernetes-sigs#6096)
  refactor(controller): controller no longer responsible for SingletonClientGenerator creation (kubernetes-sigs#6077)
  refactor(source): standardize FQDN template accross sources (kubernetes-sigs#6093)
  feat(coredns): rename ownerId and ownedBy to owner (kubernetes-sigs#6032)
  docs: fix typo in README (The are → There are) (kubernetes-sigs#6095)
  refactor(aws): abstract provider-specific boolean parsing (kubernetes-sigs#6078)
  refactor(api): deduplicate addKnownTypes (kubernetes-sigs#6087)
  fix(api): rollback changes for omitempty (kubernetes-sigs#6086)
  chore(deps): bump renovatebot/github-action (kubernetes-sigs#6080)
  fix(aws): enable AWS API validation for routing policies without setIdentifier (kubernetes-sigs#6082)
  chore(aws): document and test behavior for ALB and NLB (kubernetes-sigs#6063)
  ...
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AWS ALB Controller Frontend NLB and external-dns

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