Broken release.yaml file on ppc64le.

[svghadi]

This issue is in reference to tektoncd/plumbing#762 (comment) to track pipelines failure on ppc64le.

The distroless/base image in tekton-pipelines-controller deployment doesn't work on ppc64le due to incorrect busybox binary.

We are working on having a permanent fix. GoogleContainerTools/distroless#622 (comment)
Until then, workaround to get deployment working on ppc64le is to replace distroless/base image with ubi8/ubi-minimal:latest

[vdemeester]

/kind bug
/cc @imjasonh

[imjasonh]

Apologies for coming to this late, if this has already been discussed, but can we fix this by using distroless/static:nonroot instead of distroless/base? That image should have support for ppc64le as well and not have any BusyBox issues. The controller shouldn't depend on anything in the base image anyway.

[afrittoli]

@imjasonh That's the image we use as shell-image

pipeline/config/controller.yaml

Lines 72 to 75 in 10870df

	# The shell image must be root in order to create directories and copy files to PVCs.
	# gcr.io/distroless/base:debug as of November 15, 2020
	# image shall not contains tag, so it will be supported on a runtime like cri-o
	"-shell-image", "gcr.io/distroless/base@sha256:92720b2305d7315b5426aec19f8651e9e04222991f877cae71f40b3141d2f07e"

, which is used for things like script - it needs to have a shell inside.

[imjasonh]

Oh I see from tektoncd/plumbing#762 (comment) this is in reference to the shell image, which indeed does use busybox

edit: Andrea barely beat me to it! 😆

[ghatwala]

@vdemeester @imjasonh @afrittoli - Busybox failures in distroless image for power has been resolved with GoogleContainerTools/distroless#723