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kubeadm: add serializable health checks for etcd probes #110072
kubeadm: add serializable health checks for etcd probes #110072
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/kind bug |
/priority important-soon |
/lgtm |
/hold |
Use the etcd 3.5.3+ HTTP(s) endpoint "/health?serializable=true", to allow the kubelet liveness and starup probes in the kubeadm generated etcd.yaml (static Pod) to track individual member health instead of tracking the whole etcd cluster health.
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/lgtm
[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: neolit123, pacoxu The full list of commands accepted by this bot can be found here. The pull request process is described here
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Refs: * kubernetes/kubernetes#110072 * etcd-io/etcd#13399 Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Refs: * kubernetes/kubernetes#110072 * etcd-io/etcd#13399 Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Refs: * kubernetes/kubernetes#110072 * etcd-io/etcd#13399 Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Refs: * kubernetes/kubernetes#110072 * etcd-io/etcd#13399 Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Refs: * kubernetes/kubernetes#110072 * etcd-io/etcd#13399 Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Refs: * kubernetes/kubernetes#110072 * etcd-io/etcd#13399 Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
What type of PR is this?
/kind feature
What this PR does / why we need it:
Use the etcd 3.5.3+ HTTP(s) endpoint "/health?serializable=true",
to allow the kubelet liveness and starup probes in the
kubeadm generated etcd.yaml (static Pod) to track
individual member health instead of tracking the whole
etcd cluster health.
Which issue(s) this PR fixes:
xref kubernetes/kubeadm#2567
Special notes for your reviewer:
NONE
Does this PR introduce a user-facing change?
Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.: