ACK Kubernetes versions are fully compatible with the open source community and remain consistent with the community edition at the core code level. This article describes the changes that ACK made on top of the community Kubernetes 1.12 release.
1.12.6-aliyun.1
Update metrics-server before upgrading your ACK cluster to Kubernetes 1.12.
Bug fixes
TLS handshake error logs between the API server and kubelet are no longer collected during Server Load Balancer (SLB) health checks. (CommitID:
4f1d96e153b050d8374bfbb66803d7b3d9181abe)kubeadm can now verify the version of Docker 18.09.2. (CommitID:
3b1ebfa1b857c44f5261a36f1420b10a08e01771)
Behavior changes
The aggregation controller log level is adjusted. (CommitID:
01a904eed3f9486caa482c8983698075d1cea2f1)kubeadm automatically retries API server interactions when updating cluster resources.
kubeadm no longer deploys DNS servers.
kubeadm no longer deploys kube-proxy.
Certificates generated by kubeadm now have a 10-year validity period.