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refactor(source): standardize FQDN template accross sources#6093

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k8s-ci-robot merged 2 commits intokubernetes-sigs:masterfrom
gofogo:chore-fqdn-standartisation
Jan 10, 2026
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refactor(source): standardize FQDN template accross sources#6093
k8s-ci-robot merged 2 commits intokubernetes-sigs:masterfrom
gofogo:chore-fqdn-standartisation

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@ivankatliarchuk
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@ivankatliarchuk ivankatliarchuk commented Jan 10, 2026

What does it do ?

  • Add fqdn.CombineWithTemplatedEndpoints() shared function for consistent FQDN/annotation merging
  • Add MergeEndpoints() helper for combining endpoints with same DNS key
  • Refactor all sources to use the shared function:
    • service, ingress, contour-httpproxy, istio-gateway, istio-virtualservice, openshift-route, skipper-routegroup
    • pod.go and node.go (previously had different patterns)
  • Add tests for new functions

Follow-up:

  • support FQDN for all sources
  • apply MergeEndpoints to all sources

Motivation

The FQDN template combining logic was duplicated across 7+ source files with slight variations. This made maintenance harder and behavior inconsistent.

More

  • 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 source size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. labels Jan 10, 2026
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coveralls commented Jan 10, 2026

Pull Request Test Coverage Report for Build 20876925576

Details

  • 0 of 0 changed or added relevant lines in 0 files are covered.
  • 106 unchanged lines in 10 files lost coverage.
  • Overall coverage increased (+0.03%) to 78.925%

Files with Coverage Reduction New Missed Lines %
utils.go 1 96.0%
node.go 6 90.48%
openshift_route.go 6 85.51%
pod.go 6 95.54%
ingress.go 6 88.72%
contour_httpproxy.go 7 84.14%
istio_gateway.go 8 88.07%
skipper_routegroup.go 9 38.84%
istio_virtualservice.go 25 86.03%
service.go 32 93.17%
Totals Coverage Status
Change from base Build 20810601084: 0.03%
Covered Lines: 15931
Relevant Lines: 20185

💛 - Coveralls

Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com>
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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 10, 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 10, 2026
@k8s-ci-robot k8s-ci-robot merged commit c0d9262 into kubernetes-sigs:master Jan 10, 2026
18 checks passed
@ivankatliarchuk ivankatliarchuk deleted the chore-fqdn-standartisation branch January 10, 2026 21:43
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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4 participants