Thanks, I was going to add that step and saw it’s already there.

@tecmint team, I think it’s better to update the page to add this missing part, otherwise it causes confusion and people get stuck at the ‘kubeadm init‘ part.

@Tim,

The error message you’re encountering indicates that there is an issue with accessing the repository for Kubernetes, but when I tried the repository it is accessible.

https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml

It seems some temporary issues with the URL which can cause such errors. I suggest you retry the command to see if the issue persists.

# yum install kubeadm docker -y

At step 3: # yum install kubeadm docker -y

There is such an error:

Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirror.nsc.liu.se
 * extras: mirror.nsc.liu.se
 * updates: mirror.nsc.liu.se
base                                                                                                                       | 3.6 kB  00:00:00
extras                                                                                                                     | 2.9 kB  00:00:00
https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64/repodata/repomd.xml: [Errno 14] HTTPS Error 403 - Forbidden
Trying other mirror.
To address this issue please refer to the below wiki article

https://wiki.centos.org/yum-errors

Help how to solve this issue, thank you.

# yum install -y yum-utils
# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# yum install -y containerd.io
# mkdir -p /etc/containerd
# containerd config default | sudo tee /etc/containerd/config.toml
# systemctl restart contained

Disable Firewall – no need to do all steps given in step 2 for firewall – use my firewall things.

$ sudo systemctl stop firewalld
$ sudo systemctl disable firewalld
$ sudo systemctl mask --now firewalls

Worker node –

# swapoff -a