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hack: Test hybrid cluster upgrades#18246

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hakman:test-gossip-hybrid
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hack: Test hybrid cluster upgrades#18246
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hakman:test-gossip-hybrid

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@hakman hakman commented Apr 25, 2026

/cc @rifelpet

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nodeup: skip protokube on workers with APIServerIPs populated
481b9ef 
Workers with a fixed list of API server IPs in BootConfig don't need
protokube to populate /etc/hosts. Use that signal directly instead of
gating on cluster-wide gossip mode.
@k8s-ci-robot k8s-ci-robot requested a review from rifelpet April 25, 2026 18:07
@k8s-ci-robot k8s-ci-robot added the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Apr 25, 2026
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k8s-ci-robot commented Apr 25, 2026

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

@k8s-ci-robot k8s-ci-robot added cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Apr 25, 2026
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@k8s-ci-robot k8s-ci-robot added area/addons area/api area/nodeup area/provider/aws Issues or PRs related to aws provider area/provider/azure Issues or PRs related to azure provider area/provider/gcp Issues or PRs related to gcp provider area/provider/openstack Issues or PRs related to openstack provider labels Apr 25, 2026
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hakman commented Apr 25, 2026

/test pull-kops-aws-upgrade-k135-ko135-to-k136-kolatest-many-addons
/test pull-kops-aws-upgrade-k134-ko134-to-k136-kolatest-many-addons

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hakman commented Apr 25, 2026

/test pull-kops-aws-upgrade-k134-ko134-to-k136-kolatest-many-addons

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hakman commented Apr 25, 2026

/test pull-kops-aws-upgrade-k135-ko135-to-k136-kolatest-many-addons

hakman added 5 commits April 26, 2026 06:27
@hakman
aws: introduce hybrid worker bootstrap on AWS
03f417e 
Add UseLoadBalancerForKopsController. When it returns true, expose
kops-controller on the API NLB and bake the LB IPs into worker
BootConfig.APIServerIPs so workers bootstrap without protokube.
Control-plane nodes keep gossip.
@hakman
gce: enable hybrid mode for gossip clusters
ace79a1 
Add the kops-controller forwarding rule and ingress firewall rule for
gossip clusters with an internal API load balancer.
@hakman
openstack: enable hybrid mode for gossip clusters
865b218 
Advertise control-plane port IPs as KubeAPIServer endpoints so workers
seed /etc/hosts with control-plane addresses and reach kops-controller
on port 3988 directly. Existing firewall rules already permit the
worker to control-plane path.
@hakman
azure: enable hybrid mode for gossip clusters
92e4e83 
Expose kops-controller on the cluster load balancer for gossip Azure
clusters with an API LB. Drop the unused UsesPrivateDNS clause.

Signed-off-by: Ciprian Hacman <ciprian@hakman.dev>
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hack: Test gossip cluster upgrades
0d3d3db 
Signed-off-by: Ciprian Hacman <ciprian@hakman.dev>
@hakman hakman force-pushed the test-gossip-hybrid branch from d2261f9 to 0d3d3db Compare April 26, 2026 03:40
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hakman commented Apr 26, 2026

/test pull-kops-aws-upgrade-k135-ko135-to-k136-kolatest-many-addons
/test pull-kops-aws-upgrade-k134-ko134-to-k136-kolatest-many-addons

@k8s-ci-robot k8s-ci-robot added the needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. label Apr 26, 2026
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k8s-ci-robot commented Apr 26, 2026

PR needs rebase.

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area/addons area/api area/nodeup area/provider/aws Issues or PRs related to aws provider area/provider/azure Issues or PRs related to azure provider area/provider/gcp Issues or PRs related to gcp provider area/provider/openstack Issues or PRs related to openstack provider cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. needs-rebase Indicates a PR cannot be merged because it has merge conflicts with HEAD. size/M Denotes a PR that changes 30-99 lines, ignoring generated files.

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