Kubectl (kubernetes) does not install with the install-script.sh

DevSecOps
#1

Following the instructions in the DevSecOps course, section 2 (Demo – Installing software in VM), after creating and connecting to the VM via SSH. The install-script.sh does not work as expected. Kubernetes fails to install. I get the following error messages:

E: The repository ‘http://apt.kubernetes.io kubernetes-xenial Release’ does not have a Release
file.
N: Updating from such a repository can’t be done securely, and is therefore disabled by default
N: See apt-secure(8) manpage for repository creation and user configuration details.
Reading package lists… Done

E: Unable to locate package kubectl
E: Unable to locate package kubernetes-cni
E: Unable to locate package kubeadm
install-script.sh: line 21: pip3: command not found
install-script.sh: line 25: jc: command not found
install-script.sh: line 25: jq: command not found
install-script.sh: line 27: /etc/docker/daemon.json: No such file or directory
Failed to restart docker.service: Unit docker.service not found.
Failed to enable unit: Unit file docker.service does not exist.
Failed to enable unit: Unit file kubelet.service does not exist.
Failed to start kubelet.service: Unit kubelet.service not found.

KUBERNETES-.-._.#################--------------

rm: cannot remove ‘/root/.kube/config’: No such file or directory
install-script.sh: line 44: kubeadm: command not found
install-script.sh: line 48: kubeadm: command not found
cp: cannot stat ‘/etc/kubernetes/admin.conf’: No such file or directory
install-script.sh: line 53: kubectl: command not found
untaint controlplane node
install-script.sh: line 58: kubectl: command not found
install-script.sh: line 58: kubectl: command not found
install-script.sh: line 59: kubectl: command not found
install-script.sh: line 59: kubectl: command not found
install-script.sh: line 60: kubectl: command not found

I am unable to continue with the course as a result of the above issue.
Thanks,

#2

This script is currently being updated. A newer version should be published to the github repo sometime in the coming week.

1 Like
#3

Please try the updated version. I have updated both the install script and the Azure Template.

Please download the repo to your laptop using the following commands

git clone https://github.com/kodekloudhub/kubernetes-devops-security.git
cd kubernetes-devops-security
git checkout ubuntu-2204

Then use the template and install.sh from your local copy.

1 Like
#4

Many thanks Alistair, this worked.

#5

Splendid!

I will merge that change so it becomes current.

Note also that it includes a slightly newer version of Jenkins, so the Jenkins UI might look a little different to what it shown in the videos. It should still work the same though.

#6

Also the Kubernetes version is upgraded to 1.29 (latest), but that should not cause any issues.

#7

Hi, It didnt fix the issue for me. Kubectl command not found. See screenshot

image
image1049×616 22.7 KB

Please help

#8

Did you

  1. Use the correct repo?
  2. Run the install script as root?

Like this…

# Become root
sudo -i

# Clone repo
git clone https://github.com/kodekloudhub/devsecops.git

# CD to script directory
cd devsecops/setup/vm-install-script/

# Install
./install-script.sh

Then …

root@ip-172-31-20-248:~/devsecops/setup/vm-install-script# kubectl get pods -A
NAMESPACE     NAME                                       READY   STATUS    RESTARTS       AGE
kube-system   coredns-7db6d8ff4d-5hsgq                   1/1     Running   0              3m14s
kube-system   coredns-7db6d8ff4d-jwhmq                   1/1     Running   0              3m14s
kube-system   etcd-ip-172-31-20-248                      1/1     Running   0              3m28s
kube-system   kube-apiserver-ip-172-31-20-248            1/1     Running   0              3m28s
kube-system   kube-controller-manager-ip-172-31-20-248   1/1     Running   0              3m30s
kube-system   kube-proxy-x97n7                           1/1     Running   0              3m14s
kube-system   kube-scheduler-ip-172-31-20-248            1/1     Running   0              3m29s
kube-system   weave-net-pljgg                            2/2     Running   1 (3m7s ago)   3m14s
root@ip-172-31-20-248:~/devsecops/setup/vm-install-script#
#9

It and fixed my smell! Thanks a lot!