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#!/usr/bin/env bats -*- bats -*-
#
# All tests in here perform nasty manipulations on image storage.
#
load helpers
###############################################################################
# BEGIN setup/teardown
# Create a scratch directory; this is what we'll use for image store and cache
if [ -z "${PODMAN_CORRUPT_TEST_WORKDIR}" ]; then
export PODMAN_CORRUPT_TEST_WORKDIR=$(mktemp -d --tmpdir=${BATS_TMPDIR:-${TMPDIR:-/tmp}} podman_corrupt_test.XXXXXX)
fi
PODMAN_CORRUPT_TEST_IMAGE_CANONICAL_FQIN=quay.io/libpod/alpine@sha256:634a8f35b5f16dcf4aaa0822adc0b1964bb786fca12f6831de8ddc45e5986a00
PODMAN_CORRUPT_TEST_IMAGE_TAGGED_FQIN=${PODMAN_CORRUPT_TEST_IMAGE_CANONICAL_FQIN%%@sha256:*}:test
PODMAN_CORRUPT_TEST_IMAGE_ID=961769676411f082461f9ef46626dd7a2d1e2b2a38e6a44364bcbecf51e66dd4
# All tests in this file (and ONLY in this file) run with a custom rootdir
function setup() {
skip_if_remote "none of these tests run under podman-remote"
_PODMAN_TEST_OPTS="--storage-driver=vfs --root ${PODMAN_CORRUPT_TEST_WORKDIR}/root"
}
function teardown() {
# No other tests should ever run with this custom rootdir
unset _PODMAN_TEST_OPTS
is_remote && return
# Clean up
umount ${PODMAN_CORRUPT_TEST_WORKDIR}/root/overlay || true
if is_rootless; then
run_podman unshare rm -rf ${PODMAN_CORRUPT_TEST_WORKDIR}/root
else
rm -rf ${PODMAN_CORRUPT_TEST_WORKDIR}/root
fi
}
# END setup/teardown
###############################################################################
# BEGIN primary test helper
# This is our main action, invoked by every actual test. It:
# - creates a new empty rootdir
# - populates it with our crafted test image
# - removes [ manifest, blob ]
# - confirms that "podman images" throws an error
# - runs the specified command (rmi -a -f, prune, reset, etc)
# - confirms that it succeeds, and also emits expected warnings
function _corrupt_image_test() {
# Run this test twice: once removing manifest, once removing blob
for what_to_rm in manifest blob; do
# I have no idea, but this sometimes remains mounted
umount ${PODMAN_CORRUPT_TEST_WORKDIR}/root/overlay || true
# Start with a fresh storage root, load prefetched image into it.
/bin/rm -rf ${PODMAN_CORRUPT_TEST_WORKDIR}/root
mkdir -p ${PODMAN_CORRUPT_TEST_WORKDIR}/root
run_podman load -i ${PODMAN_CORRUPT_TEST_WORKDIR}/img.tar
# "podman load" restores it without a tag, which (a) causes rmi-by-name
# to fail, and (b) causes "podman images" to exit 0 instead of 125
run_podman tag ${PODMAN_CORRUPT_TEST_IMAGE_ID} ${PODMAN_CORRUPT_TEST_IMAGE_TAGGED_FQIN}
# shortcut variable name
local id=${PODMAN_CORRUPT_TEST_IMAGE_ID}
case "$what_to_rm" in
manifest) rm_path=manifest ;;
blob) rm_path="=$(echo -n "sha256:$id" | base64 -w0)" ;;
*) die "Internal error: unknown action '$what_to_rm'" ;;
esac
# Corruptify, and confirm that 'podman images' throws an error
rm -v ${PODMAN_CORRUPT_TEST_WORKDIR}/root/*-images/$id/${rm_path}
run_podman 125 images
is "$output" "Error: retrieving label for image \"$id\": you may need to remove the image to resolve the error.*"
# Run the requested command. Confirm it succeeds, with suitable warnings
run_podman $*
is "$output" ".*Failed to determine parent of image.*ignoring the error" \
"$* with missing $what_to_rm"
run_podman images -a --noheading
is "$output" "" "podman images -a, after $*, is empty"
done
}
# END primary test helper
###############################################################################
# BEGIN first "test" does a one-time pull of our desired image
@test "podman corrupt images - initialize" {
# Pull once, save cached copy.
run_podman pull $PODMAN_CORRUPT_TEST_IMAGE_CANONICAL_FQIN
run_podman save -o ${PODMAN_CORRUPT_TEST_WORKDIR}/img.tar \
$PODMAN_CORRUPT_TEST_IMAGE_CANONICAL_FQIN
}
# END first "test" does a one-time pull of our desired image
###############################################################################
# BEGIN actual tests
@test "podman corrupt images - rmi -f <image-id>" {
_corrupt_image_test "rmi -f ${PODMAN_CORRUPT_TEST_IMAGE_ID}"
}
@test "podman corrupt images - rmi -f <image-tagged-name>" {
_corrupt_image_test "rmi -f ${PODMAN_CORRUPT_TEST_IMAGE_TAGGED_FQIN}"
}
@test "podman corrupt images - rmi -f -a" {
_corrupt_image_test "rmi -f -a"
}
@test "podman corrupt images - image prune" {
_corrupt_image_test "image prune -a -f"
}
@test "podman corrupt images - system reset" {
_corrupt_image_test "system reset -f"
}
# END actual tests
###############################################################################
# BEGIN final cleanup
@test "podman corrupt images - cleanup" {
rm -rf ${PODMAN_CORRUPT_TEST_WORKDIR}
}
# END final cleanup
###############################################################################
# vim: filetype=sh
|
