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[3.4] Backport livez/readyz #17128

Merged
merged 4 commits into from
Dec 19, 2023
Merged

[3.4] Backport livez/readyz #17128

merged 4 commits into from
Dec 19, 2023

Commits on Dec 15, 2023

  1. http health check bug fixes 

    Signed-off-by: Chao Chen <chaochn@amazon.com>
    @chaochn47 @siyuanfoundation
    chaochn47 authored and siyuanfoundation committed Dec 15, 2023
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  2. etcdserver: add livez and ready http endpoints for etcd. 

    Add two separate probes, one for liveness and one for readiness. The liveness probe would check that the local individual node is up and running, or else restart the node, while the readiness probe would check that the cluster is ready to serve traffic. This would make etcd health-check fully Kubernetes API complient.

Signed-off-by: Siyuan Zhang <sizhang@google.com>
    @siyuanfoundation
    siyuanfoundation committed Dec 15, 2023
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  3. etcdserver: add metric counters for livez/readyz health checks. 

    Signed-off-by: Siyuan Zhang <sizhang@google.com>
    @siyuanfoundation
    siyuanfoundation committed Dec 15, 2023
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  4. etcdserver: add linearizable_read check to readyz. 

    Signed-off-by: Siyuan Zhang <sizhang@google.com>
    @siyuanfoundation
    siyuanfoundation committed Dec 15, 2023
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