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Publish externalIPs of Nodes running Pods in headless service #1391

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coufalja
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Added feature to publish Node ExternalIPs for headless services.

Use case:

  • Running K8s cluster on AWS
  • Nodes are having assigned both Internal and External IPs
  • Running Pods with hostPorts
  • Pods created are assigned those internal IPs into their status.hostIP which makes --publish-host-ip unusable
  • New --publish-host-external-ip flag will instead of status.hostIP publish assigned node ExternalIP(s)

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Jan 24, 2020
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Welcome @coufalja!

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@k8s-ci-robot k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Jan 24, 2020
@k8s-ci-robot k8s-ci-robot requested review from hjacobs and linki January 24, 2020 08:52
@coufalja
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Docker image for testing purposes: wanderadock/external-dns:external-ips

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@coufalja
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coufalja commented Feb 5, 2020

/assign @linki

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linki commented Feb 17, 2020

@coufalja Thank you!

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linki commented Feb 17, 2020

/lgtm
/cc @njuettner

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Feb 17, 2020
@domingusj
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Would this change be similar/related to #1077?

@coufalja
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Yes, it is pretty related, the approach is different though. If you guys think that doing it #1077 way is better I might re-do this according to it as it seems that #1077 is dead?

@mindw
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mindw commented Feb 18, 2020

@coufalja as users of externdDNS the annotation is preferable - it is explicit and allows to use both externalIps and internalIps using the same external-dns instance.

Thank you for your time and efforts on this PR :)

@domingusj
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I also think an annotation would be preferable

@coufalja coufalja force-pushed the publish-extrenal-ips branch from 51d536b to 7492751 Compare February 18, 2020 15:32
@k8s-ci-robot k8s-ci-robot removed the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Feb 18, 2020
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New changes are detected. LGTM label has been removed.

@coufalja coufalja force-pushed the publish-extrenal-ips branch from 7492751 to 7eef000 Compare February 18, 2020 15:32
@coufalja
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coufalja commented Feb 18, 2020

Cool, WDYT now?

New image for testing wanderadock/external-dns:external-ips-v2

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linki commented Feb 18, 2020

@domingusj @coufalja @mindw Thanks for pointing this out. We also prefer the annotation approach.

@k8s-ci-robot k8s-ci-robot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Mar 5, 2020
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@coufalja anything I can do to help with the rebase/merge conflicts? Would love to see this added in the next release. Thanks again for your work on this!

@coufalja coufalja force-pushed the publish-extrenal-ips branch from 6e75adc to c90c70c Compare March 23, 2020 15:43
@k8s-ci-robot k8s-ci-robot removed the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Mar 23, 2020
@coufalja
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coufalja commented Mar 23, 2020

@domingusj I attempted to rebase but now I am not able to build the project even locally due to

provider/ovh.go:50:15: undefined: DomainFilter

Due to #1469 it seems

@coufalja
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@stefanlasiewski @linki Could you guys take another look? I replaced the usage of a new annotation with an already existing access one, or should I open it as a new PR?

@coufalja coufalja force-pushed the publish-extrenal-ips branch from 2c6b377 to ba7117c Compare April 1, 2021 13:55
Signed-off-by: jakub.coufal <jakub.coufal@wandera.com>
@coufalja coufalja force-pushed the publish-extrenal-ips branch from ba7117c to 89df027 Compare April 6, 2021 06:35
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Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
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/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Jul 5, 2021
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unixfox commented Jul 5, 2021

/remove-lifecycle stale

@k8s-ci-robot k8s-ci-robot removed the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Jul 5, 2021
@ArchiFleKs
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Any change of having this merged soon ?

@ArchiFleKs
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@coufalja I just tried rebasing against latest release. It works as expected :). Could you try updating your PR for a chance of this getting merged ?

@coufalja
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@ArchiFleKs updated

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/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Nov 28, 2021
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mhoran commented Nov 28, 2021

/remove-lifecycle stale

@k8s-ci-robot k8s-ci-robot removed the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Nov 28, 2021
@NicklasWallgren
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Would be great if you could include support for Ingress as well.

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/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Mar 10, 2022
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mhoran commented Mar 10, 2022

/remove-lifecycle stale

@k8s-ci-robot k8s-ci-robot removed the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Mar 10, 2022
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@coufalja: PR needs rebase.

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@k8s-ci-robot k8s-ci-robot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label May 6, 2022
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/lifecycle stale

@k8s-ci-robot k8s-ci-robot added the lifecycle/stale Denotes an issue or PR has remained open with no activity and has become stale. label Aug 4, 2022
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mhoran commented Aug 4, 2022

Similar functionality is included in v0.12.0 via #2115.

/close

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@mhoran: Closed this PR.

In response to this:

Similar functionality is included in v0.12.0 via #2115.

/close

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joejulian pushed a commit to joejulian/redpanda that referenced this pull request Mar 10, 2023
If subdomain is not empty, then external listener is configured.
The annotations in the headless service is used to register all
pods in DNS provider. The externalDNS does not support AWS
external IP, but there is open PR for addressing that.

During the testing the code from
kubernetes-sigs/external-dns#1391 was used.

REF
https://hub.docker.com/layers/wanderadock/external-dns/v0.7.6-pub-external-ips/images/sha256-dc59c17c70504bb86843bf9b71f649eb3220aa075751a7a11e46977cbdaedbcb?context=explore
joejulian pushed a commit to joejulian/redpanda that referenced this pull request Mar 24, 2023
If subdomain is not empty, then external listener is configured.
The annotations in the headless service is used to register all
pods in DNS provider. The externalDNS does not support AWS
external IP, but there is open PR for addressing that.

During the testing the code from
kubernetes-sigs/external-dns#1391 was used.

REF
https://hub.docker.com/layers/wanderadock/external-dns/v0.7.6-pub-external-ips/images/sha256-dc59c17c70504bb86843bf9b71f649eb3220aa075751a7a11e46977cbdaedbcb?context=explore
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