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Document kube-proxy querying EndpointSlices 

The Endpoints API is deprecated; adjust docs to match.
pull/36675/head
Tim Bannister 2022-10-22 01:17:29 +01:00
parent 1d68a02353
commit d76017635e
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content/en/docs/reference/networking/virtual-ips.md
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@ -70,10 +70,10 @@ Note that the kube-proxy starts up in different modes, which are determined by i
This (legacy) mode uses iptables to install interception rules, and then performs
traffic forwarding with the assistance of the kube-proxy tool.
The kube-procy watches the Kubernetes control plane for the addition, modification
and removal of Service and Endpoints objects. For each Service, the kube-proxy
and removal of Service and EndpointSlice objects. For each Service, the kube-proxy
opens a port (randomly chosen) on the local node. Any connections to this _proxy port_
are proxied to one of the Service's backend Pods (as reported via
Endpoints). The kube-proxy takes the `sessionAffinity` setting of the Service into
EndpointSlices). The kube-proxy takes the `sessionAffinity` setting of the Service into
account when deciding which backend Pod to use.
The user-space proxy installs iptables rules which capture traffic to the
@ -121,7 +121,7 @@ a load balancer or node-port.
### `iptables` proxy mode {#proxy-mode-iptables}
In this mode, kube-proxy watches the Kubernetes control plane for the addition and
removal of Service and Endpoints objects. For each Service, it installs
removal of Service and EndpointSlice objects. For each Service, it installs
iptables rules, which capture traffic to the Service's `clusterIP` and `port`,
and redirect that traffic to one of the Service's
backend sets. For each endpoint, it installs iptables rules which
@ -171,9 +171,9 @@ through a load-balancer, though in those cases the client IP address does get al
### IPVS proxy mode {#proxy-mode-ipvs}
In `ipvs` mode, kube-proxy watches Kubernetes Services and Endpoints,
In `ipvs` mode, kube-proxy watches Kubernetes Services and EndpointSlices,
calls `netlink` interface to create IPVS rules accordingly and synchronizes
IPVS rules with Kubernetes Services and Endpoints periodically.
IPVS rules with Kubernetes Services and EndpointSlices periodically.
This control loop ensures that IPVS status matches the desired
state.
When accessing a Service, IPVS directs traffic to one of the backend Pods.