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1 installation environment [root@k8s-master ~]# uname -a Linux k8s-master 4.14.0-49.12.ts7.aarch64 #1 SMP Tue Nov 12 19:06:54 CST 2019 aarch64 aarch64 aarch64 GNU/Linux [root@k8s-master ~]# cat /etc/redhat-release TongyuanOS release 7.5.1810 host IP function k8s-master 192.168.0.239 Master k8s-node1 192.168.0.244 node 2. Modify the h ...

1, Overview Building Kubernetes cluster by hand is a very tedious thing. In order to simplify these operations, there are many installation and configuration tools, such as kubedm, kubespreay, RKE and other components. I finally chose the official kubedm mainly because there are some differences between different versions of Kubernete ...

1. kubelet and docker driver are inconsistent (other attempts to solve copywriting on the Internet are invalid, and finally the following methods are used to solve)Exception [kubelet cgroup driver: cgroupfs is inconsistent with docker cgroup driver: systemd] The exception is described as follows: failed to create kubelet: misconfiguration: kub ...

1, Environment server information host name IP remarks k8s-master1 192.168.0.216 Master1,etcd1,node node k8s-master2 192.168.0.217 Master2,etcd2,node node k8s-master3 192.168.0.218 Master3,etcd3,node node slb lb.ypvip.com.cn Ali slb domain name of Internet Alicloud is used in this environment. API Server is highly available throu ...

demand Kubedm builds kubernetes cluster environment Preparation conditions Three VPS (Alibaba cloud HK - centos7.7 is used in this paper) A local computer capable of SSH connection to VPS Installation procedure Before installation, you need to configure the domestic image source. Alibaba cloud's image source is recommended here cat <<EO ...

centos linux7.5 cat > /etc/hosts << EOF 192.168.199.221 master 192.168.199.222 node1 192.168.199.223 node2 EOF One , turn off firewall, turn off selinux , close swapoff -a systemctl stop firewalldselinux=disabledswapoff -a Two . installation docker One )Common methods a , configuration yum source Alibaba image sour ...

Preface Recently, it is found that the timeout exception caused by busy CPU occurs at the peak time of business. According to the monitoring, it is caused by the sudden seizure of a large number of CPUs by some Pod on Node. Q: is there no CPU limit? Is it possible to solve the limited CPU usage? Solution: in fact, this problem can not be fun ...

Recently, we have been paying attention to k8s, holidays on May 1st, and have not been out of town. All of us have set up k8s cluster and Harbo repository installation configuration in the test environment through VMware workstation. We hope this will be helpful to everyone, and at the same time improve our understanding of K8S. 1 Preparator ...

1, Environmental optimizationLB1 [root@localhost ~]# hostnamectl set-hostname lb1 [root@localhost ~]# su / / modify the hostname [root@lb1 ~]# systemctl stop NetworkManager //Shut down the NetworkManage service [root@lb1 ~]# systemctl disable NetworkManager Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service. Re ...

Completing Kubernetes binary deployment step by step (4) - multi node deployment Preface In the previous three articles, Kubernetes of single node has been deployed in binary mode. Based on the configuration of this single node, this paper will complete the deployment of binary Kubernetes of multiple nodes. Environment and address planning mas ...