Install Kubernetes Components - Kubeadm, Kubectl, Kubelet

Fri, 14 May 2021 00:00:00 +0200

Goals

Install kubeadm, kubectl and kubelet on Debian-based Linux
Freeze their versions to avoid automatic updates

Installation

curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add - (1)

cat << EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list (2)
deb https://apt.kubernetes.io/ kubernetes-xenial main
EOF

sudo apt-get update (3)

sudo apt-get install -y kubelet=1.15.7-00 kubeadm=1.15.7-00 kubectl=1.15.7-00 (4)

sudo apt-mark hold kubelet kubeadm kubectl (5)

1 Add the GPG key

2 Add the kubernetes repo to the sources list

3 Update the index

Install kubelet, kubeadm and kubectl

It’s important to use the same version for kubelet, kubeadm and kubectl.

Maven Snippets

Mon, 01 Mar 2010 00:00:00 +0100

Extract Coordinates from the POM

Helpful for build and integration environments, pipelines etc.

Exctract the Project version from the pom.xml

mvn org.apache.maven.plugins:maven-help-plugin:3.1.0:evaluate -Dexpression=project.version -q -DforceStdout

Override a Property via local configuration

e.g. to override the property xxx from your project’s pom.xml

Create a directory .mvn in your project directory root
Create a file named maven.config in this directory
Insert -Dxxx=newvalue into the file to override this property

Don’t forget to add .mvn to your .gitignore!

Version on Micha Kops' Tech Notes

Install Kubernetes Components - Kubeadm, Kubectl, Kubelet

Installation

Maven Snippets

Extract Coordinates from the POM

Override a Property via local configuration