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40d70334e0
TL;DR podman needs "arm64" as arch, not "arm64v8".
Unexpurgated version: docker.io publishes ${ARCH}/alpine for
several values of ARCH. Unfortunately, the arm64 one is
called "arm64v8", which is sensible, but podman needs the
--arch value of the manifest to be exactly "arm64". So we
need to special-case this value in our loop. Do so, and
build/publish a new 20210610 testimage. Use that in tests
moving forward.
And, since we need to jump through the same hoops to build
the nonlocal image, include it in the build loop instead
of as a tacked-on comment. Try to be helpful by determining
the next-available numeric tag.
And: don't push anything by default. Instead, just tell
the user what buildah-push commands to run.
And: refactor $PODMAN_NONLOCAL_IMAGE_TAG, to make it easier
for the RHEL-arch-testing folx to override using envariables
instead of inplace-sed. (Not that they should ever need to
override again, because this is the final multiarch commit
that should be forevermore perfect and need no further commits
ever again).
And, finally, bump up to latest alpine/busybox images.
Signed-off-by: Ed Santiago <santiago@redhat.com>
136 lines
4.3 KiB
Bash
Executable File
136 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# build-testimage - script for producing a test image for podman CI
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#
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# The idea is to have a small multi-purpose image that can be pulled once
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# by system tests and used for as many tests as possible. This image
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# should live on quay.io, should be small in size, and should include
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# as many components as needed by system tests so they don't have to
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# pull other images.
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#
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# Unfortunately, "small" is incompatible with "systemd" so tests
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# still need a fedora image for that.
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#
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# Buildah binary
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BUILDAH=${BUILDAH:-buildah}
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# Tag for this new image
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YMD=$(date +%Y%m%d)
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# git-relative path to this script
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create_script=$(cd $(dirname $0) && git ls-files --full-name $(basename $0))
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if [ -z "$create_script" ]; then
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create_script=$0
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fi
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# Creation timestamp, Zulu time
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create_time_z=$(env TZ=UTC date +'%Y-%m-%dT%H:%M:%SZ')
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set -ex
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# We'll need to create a Containerfile plus various other files to add in
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#
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# Please document the reason for all flags, apk's, and anything non-obvious
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tmpdir=$(mktemp -t -d $(basename $0).tmp.XXXXXXX)
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cd $tmpdir
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# 'image mount' test will confirm that this file exists and has our YMD tag
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echo $YMD >testimage-id
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# ...but set the timestamp on the file itself to a constant well-known
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# value, for use by the 'run --tz' test. Date value chosen for nerdiness
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# and because it's in the past. (Much as I'd love FFFFFFFF, we can't
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# use any future date because of unpredictable leap second adjustments).
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touch --date=@1600000000 testimage-id
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# 'pod' test will use this for --infra-command
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cat >pause <<EOF
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#!/bin/sh
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#
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# Trivial little pause script, used in one of the pod tests
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#
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echo Confirmed: testimage pause invoked as \$0
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while :; do
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sleep 0.1
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done
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EOF
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chmod 755 pause
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# alpine because it's small and light and reliable
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# - check for updates @ https://hub.docker.com/_/alpine
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# busybox-extras provides httpd needed in 500-networking.bats
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cat >Containerfile <<EOF
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ARG REPO=please-override-repo
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FROM docker.io/\${REPO}/alpine:3.13.5
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RUN apk add busybox-extras
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ADD testimage-id pause /home/podman/
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LABEL created_by=$create_script
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LABEL created_at=$create_time_z
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WORKDIR /home/podman
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CMD ["/bin/echo", "This container is intended for podman CI testing"]
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EOF
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# --squash-all : needed by 'tree' test in 070-build.bats
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podman rmi -f testimage &> /dev/null || true
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# There should always be a testimage tagged ':0000000<X>' (eight digits,
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# zero-padded sequence ID) in the same location; this is used by tests
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# which need to pull a non-locally-cached image. This image will rarely
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# if ever need to change, nor in fact does it even have to be a copy of
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# this testimage since all we use it for is 'true'.
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# However, it does need to be multiarch :-(
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zerotag_latest=$(skopeo list-tags docker://quay.io/libpod/testimage |\
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jq -r '.Tags[]' |\
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sort --version-sort |\
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grep '^000' |\
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tail -n 1)
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zerotag_next=$(printf "%08d" $((zerotag_latest + 1)))
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# We don't always need to push the :00xx image, but build it anyway.
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zeroimg=quay.io/libpod/testimage:${zerotag_next}
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buildah manifest create $zeroimg
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# We need to use buildah because (as of 2021-02-23) only buildah has --manifest
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# and because Dan says arch emulation is not currently working on podman
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# (no further details).
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# Arch emulation on Fedora requires the qemu-user-static package.
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for arch in amd64 arm64 ppc64le s390x;do
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# docker.io repo is usually the same name as the desired arch; except
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# for arm64, where podman needs to have the arch be 'arm64' but the
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# image lives in 'arm64v8'.
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repo=$arch
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if [[ $repo = "arm64" ]]; then
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repo="${repo}v8"
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fi
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${BUILDAH} bud \
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--arch=$arch \
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--build-arg REPO=$repo \
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--manifest=testimage \
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--squash \
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.
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# The zero-tag image
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${BUILDAH} pull --arch $arch docker.io/$repo/busybox:1.33.1
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${BUILDAH} manifest add $zeroimg docker.io/$repo/busybox:1.33.1
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done
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# Clean up
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cd /tmp
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rm -rf $tmpdir
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# Tag image and push (all arches) to quay.
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remote_tag=quay.io/libpod/testimage:$YMD
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podman tag testimage ${remote_tag}
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cat <<EOF
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If you're happy with these images, run:
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${BUILDAH} manifest push --all ${remote_tag} docker://${remote_tag}
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${BUILDAH} manifest push --all ${zeroimg} docker://${zeroimg}
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(You do not always need to push the :0000 image)
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EOF
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