promenade/charts/proxy
Phil Sphicas 354deab382 kube-proxy: use HTTP probes instead of exec
The existing liveness and readiness probes for kube-proxy are in need of
adjustment. The current implementation is exec-based, which can be a
resource concern, and is tied heavily to iptables, so is incompatible
with ipvs.

This change removes the exec-based liveness and readiness probes from
the kube-proxy daemonset, and replaces them with HTTP probes of the
healthz endpoint, following the direction that kubernetes seems to be
taking.[0][1]

The values.yaml interface to enable and disable the probes and set various
parameters is also modified to use the helm-toolkit standard snippet.[2]
Notably, the settings previously configurable under livenessProbe.config
are now under pod.probes.proxy.proxy.liveness.params.

0: https://github.com/kubernetes/kubernetes/issues/81630
1: https://github.com/kubernetes/kubernetes/pull/75323
2: https://opendev.org/openstack/openstack-helm-infra/src/branch/master/helm-toolkit/templates/snippets/_kubernetes_probes.tpl

Change-Id: I99ccbc2270a1f8a204417aa410868d04788dc60f
2020-05-24 07:38:55 +00:00
..
templates kube-proxy: use HTTP probes instead of exec 2020-05-24 07:38:55 +00:00
Chart.yaml Refactor Kubernetes Proxy Chart 2017-11-20 13:56:19 -05:00
requirements.yaml Refactor Kubernetes Proxy Chart 2017-11-20 13:56:19 -05:00
values.yaml kube-proxy: use HTTP probes instead of exec 2020-05-24 07:38:55 +00:00