LFD259 Exercise 3.1, step 9: error when trying to build the image

andrew.nichols

When executing step 9 in Exercise 3.1, I am getting the following error when running the command sudo podman build -t simpleapp .. What can be done about it?

controlplane ~/app1 via 🐍 v2.7.18 ➜  sudo podman build -t simpleapp .
STEP 1/3: FROM docker.io/library/python:3
ERRO[0000] Unmounting /var/lib/containers/storage/overlay/be04351d1d1ed7225ef1a2b7a6d0e15d8e8b5fe93ee74f738bff35467d1cd515/merged: invalid argument 
Error: mounting new container: mounting build container "3049fc0d2360f115094ccfa41460c642035b5523cc5d8f38356758ff550e724e": creating overlay mount to /var/lib/containers/storage/overlay/be04351d1d1ed7225ef1a2b7a6d0e15d8e8b5fe93ee74f738bff35467d1cd515/merged, mount_data="lowerdir=/var/lib/containers/storage/overlay/l/5MYLVYXYF5X7G5QQRCJ47WFZB6:/var/lib/containers/storage/overlay/l/OTPSEH7PV7PEFWP3F6ZJPOJR4N:/var/lib/containers/storage/overlay/l/VVBMLXLP3CL6O4EBNNIT653IBC:/var/lib/containers/storage/overlay/l/VY3GN42BL6TENC5X4O3CQPF7FB:/var/lib/containers/storage/overlay/l/VU3S6W7RWD37YQQLOLDNOCBJ4F:/var/lib/containers/storage/overlay/l/OFRLKA7OT7657GUGOU3XQFUTCI:/var/lib/containers/storage/overlay/l/OPI2AL2JBE4ARNHFSTRGZQGGFG:/var/lib/containers/storage/overlay/l/GFMKEIJELLDRTH62T6JKZR4CX6,upperdir=/var/lib/containers/storage/overlay/be04351d1d1ed7225ef1a2b7a6d0e15d8e8b5fe93ee74f738bff35467d1cd515/diff,workdir=/var/lib/containers/storage/overlay/be04351d1d1ed7225ef1a2b7a6d0e15d8e8b5fe93ee74f738bff35467d1cd515/work,nodev,fsync=0,volatile": using mount program /usr/local/bin/fuse-overlayfs: unknown argument ignored: lazytime
fuse-overlayfs: cannot read upper dir: Permission denied
: exit status 1

I am running Kubernetes 1.27 on a 2-node cluster with Ubuntu 20.04.5 LTS. I used the Dockerfile included in the course download. The LFD259 lab version is 2023-02-28.

chrispokorni

Hi @andrew.nichols,

The lab guide release 2023-02-28 was calling for Kubernetes 1.26.1. Aside from changing the installed Kubernetes version, is there anything else that was modified between lab exercises of Ch 2 and 3?

However, there is a newer course release 2023-05-31, and I would recommend setting up the cluster according to the updated installation and configuration guide.

Regards,
-Chris