Skip to content

[reproducer] Open dev-scripts registry port on libvirt zone for IPv6 - #4255

Open
belolipa wants to merge 1 commit into
openstack-k8s-operators:mainfrom
belolipa:fix/uni04delta-ipv6-registry-libvirt-zone
Open

belolipa wants to merge 1 commit into
openstack-k8s-operators:mainfrom
belolipa:fix/uni04delta-ipv6-registry-libvirt-zone

Conversation

@belolipa

@belolipa belolipa commented Oct 12, 2026 •

Copy link
Copy Markdown
Contributor

The OCP bootstrap pulls the release image from the dev-scripts local release/mirror registry on the hypervisor. dev-scripts (#1922, commit 08f6e3c) opens that registry port only on the firewalld 'public' zone, and dev-scripts #1975 opens it on the IPv4 'libvirt-to-host' policy.

On single-stack IPv6 (NAT64) jobs the OCP nodes reach the host registry through the 'libvirt' zone instead, so neither of those covers them: the bootstrap gets "connection refused" reaching the registry, node-image-pull wedges at boot, bootkube never starts and the API VIP never floats, so the install times out with "no route to host" on the API endpoint.

Open 5000/tcp on the libvirt zone alongside the temporary vBMC rule, before running devscripts. Gate it on cifmw_use_nat64 so only IPv6/NAT64 jobs are affected (the same flag nat64_appliance itself is gated on); every IPv4 job is untouched and remains covered by dev-scripts #1975. Unlike the vBMC port it is kept for the whole deploy, since the cluster pulls from the registry throughout.

Verified live on an affected uni04delta-ipv6 hypervisor: opening the port let node-image-pull complete, bootkube/kubelet start, etcd + kube-apiserver come up and the API VIP float within minutes.

Related: OSPCIX-1526

@openshift-ci

openshift-ci Bot commented Oct 12, 2026

Copy link
Copy Markdown
Contributor

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign dasm for approval. For more information see the Code Review Process.

The full list of commands accepted by this bot can be found here.

Details Needs approval from an approver in each of these files:

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

@qodo-code-review

Copy link
Copy Markdown

Qodo reviews are paused for this user.

Troubleshooting steps vary by plan Learn more →

On a Teams plan?
Reviews resume once this user has a paid seat and their Git account is linked in Qodo.
Link Git account →

Using GitHub Enterprise Server, GitLab Self-Managed, or Bitbucket Data Center?
These require an Enterprise plan - Contact us
Contact us →

@belolipa

Copy link
Copy Markdown
Contributor Author

/retest

The OCP bootstrap pulls the release image from the dev-scripts local
release/mirror registry on the hypervisor. dev-scripts (openstack-k8s-operators#1922, commit
08f6e3c) opens that registry port only on the firewalld 'public' zone,
and dev-scripts openstack-k8s-operators#1975 opens it on the IPv4 'libvirt-to-host' policy.

On single-stack IPv6 (NAT64) jobs the OCP nodes reach the host registry
through the 'libvirt' zone instead, so neither of those covers them: the
bootstrap gets "connection refused" reaching the registry, node-image-pull
wedges at boot, bootkube never starts and the API VIP never floats, so the
install times out with "no route to host" on the API endpoint.

Open 5000/tcp on the libvirt zone alongside the temporary vBMC rule,
before running devscripts. Gate it on cifmw_use_nat64 so only IPv6/NAT64
jobs are affected (the same flag nat64_appliance itself is gated on);
every IPv4 job is untouched and remains covered by dev-scripts openstack-k8s-operators#1975.
Unlike the vBMC port it is kept for the whole deploy, since the cluster
pulls from the registry throughout.

Verified live on an affected uni04delta-ipv6 hypervisor: opening the port
let node-image-pull complete, bootkube/kubelet start, etcd + kube-apiserver
come up and the API VIP float within minutes.

Related: OSPCIX-1526, OSPCIX-1469

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Signed-off-by: Oleg Belolipetskii <obelolip@redhat.com>
@belolipa
belolipa force-pushed the fix/uni04delta-ipv6-registry-libvirt-zone branch from 39a57e7 to 078597f Compare October 12, 2026 15:51
@centosinfra-prod-github-app

Copy link
Copy Markdown

Build succeeded (check pipeline).
https://gateway-cloud-softwarefactory.apps.ocp.cloud.ci.centos.org/zuul/t/rdoproject.org/buildset/0f83dc4fc00147c4963fda7cfa300f29

✔️ openstack-k8s-operators-content-provider SUCCESS in 1h 51m 15s
✔️ podified-multinode-edpm-deployment-crc SUCCESS in 1h 20m 01s
✔️ podified-multinode-edpm-deployment-crc-centos-10 SUCCESS in 1h 21m 02s
✔️ cifmw-crc-podified-edpm-baremetal SUCCESS in 1h 32m 03s
✔️ cifmw-pod-zuul-files SUCCESS in 5m 25s
✔️ noop SUCCESS in 0s
✔️ cifmw-pod-ansible-test SUCCESS in 9m 31s
✔️ cifmw-pod-pre-commit SUCCESS in 9m 28s
✔️ cifmw-molecule-reproducer SUCCESS in 14m 41s

This branch has not been deployed

No deployments
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Projects

None yet

Development

Successfully merging this pull request may close these issues.

1 participant