Shulou(Shulou.com)06/02 Report--

Cluster introduction

Master node: 10.20.10.103 name=cnvs-kubm-101-103role: [controlplane,worker,etcd] user: k8suser10.20.10.104 name=cnvs-kubm-101-104role: [controlplane,worker,etcd] user: k8suser10.20.10.105 name=cnvs-kubm-101-105role: [controlplane,worker,etcd] user: k8suser cluster management node: 10.20.10.103vip:10.20.10.253node node: 10.20.10.106 name=cnvs-kubnode-101-106 role: [controlplane,worker Etcd] user: k8suser 10.20.10.107 name=cnvs-kubnode-101-107 role: [controlplane,worker,etcd] user: k8suser10.20.10.108 name=cnvs-kubnode-101-108 role: [controlplane,worker,etcd] user: k8suser10.20.10.118 name=cnvs-kubnode-101-118 role: [controlplane,worker,etcd] user: k8suser 10.20.10.120 name=cnvs-kubnode-101-120 role: [controlplane,worker,etcd] user: k8suser10.20.10.122 name=cnvs-kubnode-101-122role: [controlplane,worker Etcd] user: k8suser10.20.10.123 name=cnvs-kubnode-101-123 role: [controlplane,worker,etcd] user: k8suser 10.20.10.124 name=cnvs-kubnode-101-124 role: [controlplane,worker,etcd] user: k8suser Cluster installation preparation

Rke deployment does not allow root users. You need to create a new cluster deployment account or add an existing account to the docker user group.

This time, add the existing k8suser account to docker.

# stand-alone usermod k8suser-G docker # batch ansible kub-all-m shell-a "usermod k8suser-G docker" # Verification [root@cnvs-kubm-101-103kub-deploy] # ansible kub-all-m shell-a "id k8suser" 10.20.10.107 | CHANGED | rc=0 > > uid=1000 (k8suser) gid=1000 (k8suser) groups=1000 (k8suser) 992 (docker) # kub-all contains the cluster user method groupadd docker & & useradd rancher-G dockerecho "123456" for all hosts in the cluster | passwd-- stdin rancherssh secret-free login

On the installation host, get through ssh password-free authentication with all nodes of the installation cluster (install cluster users).

Ansible kub-all-m shell-a "echo 'ssh-rsa AAAAB3NzaC1yaLuTb' > > / home/k8suser/.ssh/authorized_keys"

Rancher rke download mkdir-p / etc/rke/ download address https://www.rancher.cn/docs/rancher/v2.x/cn/install-prepare/download/rke/unzip rke_linux-amd64.zip mv rke_linux-amd64 / usr/bin/rke [root@cnvs-kubm-101-103 rke] # chmod 755 / usr/bin/rke [root@cnvs-kubm-101-103 rke] # rke-vrke version v0.2.8 generate cluster configuration file

Address: public domain name or IP address

User: the user who can run the docker command needs to be a normal user.

Role: list of Kubernetes roles assigned to the node

Ssh_key_path: the path of the SSH private key used to authenticate the node (default is ~ / .ssh/id_rsa)

Cat > cluster.yml

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