Parabéns pelo lançamento da versão 1.20. O terceiro lançamento em 2020, no qual 11 recursos foram anunciados estáveis, 15 foram transferidos para beta e 16 novos foram adicionados nos estágios alfa.
Release Logo, . , .
, dockershim. , , , , , , docker , .
, , , 1.20 Probe exec.
, , . HTTP/TCP- (exec probe) - (, rabbitmqctl status) .
:
timeoutSeconds:
, . , exec probe , .
exec probe timeoutSeconds:
— , .
timeoutSeconds:
, . — 1 , , .
— . docker, . readinessProbe, .
:
alpha feature API Priority and Fairness (APF) - 1.19 — . 1.20 beta, alpha. .
! node-role.kubernetes.io/master
taint node-role.kubernetes.io/master:NoSchedule
, kubeadm control-plane, deprecated . node-role.kubernetes.io/control-plane
taint node-role.kubernetes.io/control-plane:NoSchedule
.
kubeadm serviceSubnet podSubnet.
20 . , IPv4 /12 (/13, /14 ..), IPv6 — /108, /112.
--node-cidr-mask-size
, , , .
API . , API --insecure-port 8080
IPv4/IPv6 dual stack . IPv4, IPv6 ( "IPv6DualStack" feature gate). API. Kind: Service
— ipFamily
: ipFamilyPolicy
, ipFamilies
, clusterIPs
. , , IPv4, feature gate. TODO: , Headless Service, clusterIP: None
(, kubeadm alpha certs
kubeadm certs
. , .
GracefulNodeShutdown
— kubelet , . gracefulShutdown preStop .
kubectl debug
, . , . — debug
, . , .
CVE-2020-8559 , API, metrics-server prometheus adapter.
CronJob controller v2. , , , . , feature gate.