kubernetes-sigs
Node images built on depracted Ubuntu version can't have new packages installed
What happened:
I have some images based on KinD node images, where I add python3 (to ease use in ansible playbooks). My standad workflow is to start an image with a FROM line of the node image then apt update && apt install -y python3.
Using the newest node images this generates an error as apt update fails. This appears to be due to the deprecation of Ubuntu 21.10 .
Sample Error message :-
E: The repository 'http://security.ubuntu.com/ubuntu impish-security 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.
What you expected to happen:
Adding packages to a KinD node image using apt works
How to reproduce it (as minimally and precisely as possible):
docker run -it --entrypoint=/bin/bash kindest/node:v1.24.0@sha256:0866296e693efe1fed79d5e6c7af8df71fc73ae45e3679af05342239cdc5bc8e
apt update
Anything else we need to know?:
Environment:
- kind version: (use
kind version): kind v0.14.0 go1.18.2 linux/amd64 - Kubernetes version: (use
kubectl version): Client Version: version.Info{Major:"1", Minor:"24", GitVersion:"v1.24.1", GitCommit:"3ddd0f45aa91e2f30c70734b175631bec5b5825a", GitTreeState:"clean", BuildDate:"2022-05-24T12:26:19Z", GoVersion:"go1.18.2", Compiler:"gc", Platform:"linux/amd64"} - Docker version: (use
docker info): 20.10.17 - OS (e.g. from
/etc/os-release): "20.04.4 LTS (Focal Fossa)"
We’ve already upgraded the base image going forward (see closed issues) but also FWIW the node image is only advertised as being able to run Kubernetes and we reserve the right to alter it in the future, installing packages to Kubernetes nodes is not portable and we’ve switched distros before.
There's a new v1.24.3 image coming built with the new base image as part of https://github.com/kubernetes-sigs/kind/pull/2869 ahead of v0.15.0.