95 lines
3.0 KiB
Bash
Executable File
95 lines
3.0 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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# 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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FROM docker.io/library/alpine:3.12.0
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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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podman build --squash-all -t testimage .
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# Clean up
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cd /tmp
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rm -rf $tmpdir
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# Tag and push to quay.
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podman tag testimage quay.io/libpod/testimage:$YMD
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podman push quay.io/libpod/testimage:$YMD
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# Side note: there should always be a testimage tagged ':00000000'
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# (eight zeroes) in the same location; this is used by tests which
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# 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
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# copy of this testimage since all we use it for is 'true'.
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#
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# As of 2020-09-02 it is simply busybox, because it is super small:
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#
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# podman pull docker.io/library/busybox:1.32.0
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# podman tag docker.io/library/busybox:1.32.0 \
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# quay.io/libpod/testimage:00000000
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# podman push quay.io/libpod/testimage:00000000
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#
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