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The repository 'http://apt.kubernetes.io kubernetes-xenial Release' does not have a Release file

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Hi @chrispokorni ,

I am at final stage of my class, I am setting up an HAproxy.
I was installing kubelet,kubeadm,kubectl for the same on a secondary node, but I got an error which isn't letting me install above three services.
Error is at apt-get update followed by unable to locate packages.

root@ip-172-31-37-153:~# apt update
Hit:1 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu focal InRelease
Hit:2 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:3 http://ap-south-1.ec2.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:4 https://download.docker.com/linux/ubuntu focal InRelease
Hit:5 http://security.ubuntu.com/ubuntu focal-security InRelease
Ign:6 https://packages.cloud.google.com/apt kubernetes-xenial InRelease
Err:7 https://packages.cloud.google.com/apt kubernetes-xenial Release
404 Not Found [IP: 142.251.42.46 443]
Reading package lists... Done
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.

root@ip-172-31-37-153:~# apt-get install -y kubeadm=1.28.1-00 kubelet=1.28.1-00 kubectl=1.28.1-00
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package kubeadm
E: Unable to locate package kubelet
E: Unable to locate package kubectl

What could be the problem here ?

Thanks
Aditya Modak

Comments

  • svadlama
    svadlama Posts: 2
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    I'am facing the same issue since this morning. I am running a server on Cloud Guru though.

  • rebekah
    rebekah Posts: 9
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    yeah same here if you want to get the older version 1.28 in order to practice the upgrade do this:

    add this(no newline):
    deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /
    to the file: /etc/apt/sources.list.d/kubernetes.list

    get the key:
    curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

    confirm the packages are on your vm:
    apt-cache madison kubeadm

    switch the 1.28 to 1.29 for the most recent version

  • svadlama
    svadlama Posts: 2
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    Thank you @chrispokorni. It worked.

  • aditya03
    aditya03 Posts: 15
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    Hi @chrispokorni

    Thanks for the help, successfully created cluster with HA👍.

  • titu.tiru9
    titu.tiru9 Posts: 1
    edited March 6
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    This is my common.sh script i am still getting the same error. I tried 1.28.1-1.1 version first but same error.

    E: Unable to locate package kubeadm
    E: Unable to locate package kubelet
    E: Unable to locate package kubectl

    #!/bin/bash
    
    sudo apt update
    
    sudo apt install docker.io -y
    sudo systemctl enable --now docker
    
    sudo swapoff -a
    
    sudo apt install -y apt-transport-https ca-certificates curl
    
    curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.29/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
    
    echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.29/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
    
    sudo apt update 
    
    sudo apt install -y kubeadm=1.29.1-1.1 kubelet=1.29.1-1.1 kubectl=1.29.1-1.1
    
    ### Pod Network
    kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml
    
    
  • chrispokorni
    chrispokorni Posts: 2,165
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    Hi @titu.tiru9,

    In the latest lab guide release you can find many installation and configuration steps before getting to this point, that resolve dependencies for the recommended container runtime and the tools needed to successfully download and set the gpg key and apt source for Kubernetes. Try updating your script with those steps as well and let us know if they helped.

    Regards,
    -Chris

  • vkings
    vkings Posts: 1
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    Thanks, It worked. :)

  • a957001360h
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    hi, if I want install version 1.21.
    any active function to use?

  • chrispokorni
    chrispokorni Posts: 2,165
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    Hi @a957001360h,

    Considering that Kubernetes v1.21 is quite outdated, the official installation guide no longer provides installation and configuration instructions for Kubernetes releases older than v1.25.

    However, you may try to use the steps presented in my comment above with the necessary corrections for v1.21.

    Regards,
    -Chris

  • justindowe
    justindowe Posts: 1
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    Thank you Chris!

  • mattdevops
    mattdevops Posts: 1
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    @rebekah said:
    yeah same here if you want to get the older version 1.28 in order to practice the upgrade do this:

    add this(no newline):
    deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /
    to the file: /etc/apt/sources.list.d/kubernetes.list

    get the key:
    curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

    confirm the packages are on your vm:
    apt-cache madison kubeadm

    switch the 1.28 to 1.29 for the most recent version

    Hi Rebekah,
    I am running WSL2 on Ubuntu - is there a different command for me? Ty

  • chrispokorni
    chrispokorni Posts: 2,165
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    Hi @mattdevops,

    Installing Kubernetes in a VM is much better suited for learning purposes as opposed to installing it on WSL. However, if this is the desired approach, the commands depend on your WSL distribution. If it is the default Ubuntu then the commands are the same. For other distributions please consult the official kubernetes.io installation documentation.

    Regards,

    -Chris

  • nailadjmas
    nailadjmas Posts: 1
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    Thank you @chrispokorni, this answer made my day!

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