kaniko: error building image: error building stage: gzip: invalid header

Actual behavior The dockerfile command RUN and USER will lead to “unpack rootfs”, which causing “error building image: error building stage: gzip: invalid header”. But the error only happens in some specific images.

Expected behavior It should work fine.

To Reproduce Steps to reproduce the behavior: build the image with kaniko.

Additional Information

Dockerfile works wrong

FROM myimage

USER root
RUN chmod 1777 /tmp

ADD test.txt /tmp/

Dockerfile works right

FROM myimage

ADD test.txt /tmp/

INFO[0000] Executing 0 build triggers
INFO[0000] Unpacking rootfs as cmd RUN chmod 1777 /tmp requires it.
error building image: error building stage: gzip: invalid header

Kaniko Image v0.10.0

About this issue

Original URL
State: open
Created 5 years ago
Reactions: 7
Comments: 17 (6 by maintainers)

Most upvoted comments

Seems like I’m running into this as well. Tracked it down to trying to run a command in an Ubuntu 20.04 image pulled from Amazon’s new public registry.

So basically, this image fails: public.ecr.aws/lts/ubuntu@sha256:aed3a67ccca8f308fa5e367918f91dde88fb79c5d72e0d139e799da89634bd9e

And this image works: ubuntu@sha256:376209074d481dca0a9cf4282710cd30a9e7ff402dea8261acdaaf57a18971dd

I hope that helps! I was using Kaniko v1.6.0.

siwyd on Jul 8, 2021

@drpmma could you fix the issue? I’m getting the same error, and trying to build with Buildah works properly… but I need Kaniko for CI.

Silvanoc on Feb 25, 2021

@drpmma Can you try with -v debug flag with the latest image

The image is not built by kaniko. And the image can be extracted and run correctly by docker.

Below are the logs. The error is here. https://github.com/GoogleContainerTools/kaniko/blob/master//pkg/util/fs_util.go#L87

...
DEBU[0000] Read the following line from /proc/self/mountinfo:
DEBU[0000] Reached end of file /proc/self/mountinfo
DEBU[0000] Mounted directories: [{/kaniko false} {/var/run false} {/etc/mtab false} {/proc false} {/dev false} {/dev/pts false} {/sys false} {/sys/fs/cgroup false} {/sys/fs/cgroup/systemd false} {/sys/fs/cgroup/hugetlb false} {/sys/fs/cgroup/freezer false} {/sys/fs/cgroup/blkio false} {/sys/fs/cgroup/net_cls,net_prio false} {/sys/fs/cgroup/cpuset,cpu,cpuacct false} {/sys/fs/cgroup/pids false} {/sys/fs/cgroup/memory false} {/sys/fs/cgroup/devices false} {/sys/fs/cgroup/perf_event false} {/sys/fs/cgroup/net_cgroup false} {/dev/mqueue false} {/build-test false} {/etc/resolv.conf false} {/etc/hostname false} {/etc/hosts false} {/dev/shm false} {/kaniko/.docker/config.json false} {/proc/bus false} {/proc/fs false} {/proc/irq false} {/proc/sys false} {/proc/sysrq-trigger false} {/proc/acpi false} {/proc/kcore false} {/proc/keys false} {/proc/timer_list false} {/proc/timer_stats false} {/proc/sched_debug false} {/proc/scsi false} {/sys/firmware false}]
DEBU[0000] Extracting layer %!d(types.MediaType=application/vnd.docker.image.rootfs.diff.tar.gzip) of media type %!s(MISSING)
error building image: error building stage: gzip: invalid header

drpmma on Oct 9, 2019