podman

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#!/usr/bin/env bats   -*- bats -*-
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#
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# tests for podman import
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#
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load helpers
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@test "podman import" {
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    local archive=$PODMAN_TMPDIR/archive.tar
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    local random_content=$(random_string 12)
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    # Generate a random name and tag (must be lower-case)
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    local random_name=x0$(random_string 12 | tr A-Z a-z)
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    local random_tag=t0$(random_string 7 | tr A-Z a-z)
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    local fqin=localhost/$random_name:$random_tag
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    run_podman run --name import $IMAGE sh -c "echo ${random_content} > /random.txt"
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    run_podman export import -o $archive
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    run_podman rm -t 0 -f import
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    # Simple import
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    run_podman import -q $archive
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    iid="$output"
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    run_podman run --rm $iid cat /random.txt
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    is "$output" "$random_content" "simple import"
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    run_podman rmi -f $iid
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    # Simple import via stdin
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    run_podman import -q - < <(cat $archive)
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    iid="$output"
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    run_podman run --rm $iid cat /random.txt
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    is "$output" "$random_content" "simple import via stdin"
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    run_podman rmi -f $iid
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    # Tagged import
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    run_podman import -q $archive $fqin
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    run_podman run --rm $fqin cat /random.txt
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    is "$output" "$random_content" "tagged import"
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    run_podman rmi -f $fqin
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    # Tagged import via stdin
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    run_podman import -q - $fqin < <(cat $archive)
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    run_podman run --rm $fqin cat /random.txt
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    is "$output" "$random_content" "tagged import via stdin"
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    run_podman rmi -f $fqin
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}
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# Integration tag to catch future breakage in tar, e.g. #19407
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# bats test_tags=distro-integration
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@test "podman export, alter tarball, re-import" {
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    # FIXME: #21373 - tar < 1.35 is broken.
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    # Remove this skip once all VMs are updated to 1.35.2 or above
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    # (.2, because of #19407)
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    tar_version=$(tar --version | head -1 | awk '{print $NF}' | tr -d .)
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    if [[ $tar_version -lt 135 ]]; then
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        skip "test requires tar >= 1.35 (you have: $tar_version)"
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    fi
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    # Create a test file following test
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    mkdir $PODMAN_TMPDIR/tmp
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    touch $PODMAN_TMPDIR/testfile1
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    echo "modified tar file" >> $PODMAN_TMPDIR/tmp/testfile2
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    # Create Dockerfile for test
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    dockerfile=$PODMAN_TMPDIR/Dockerfile
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    cat >$dockerfile <<EOF
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FROM $IMAGE
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ADD testfile1 /tmp
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WORKDIR /tmp
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EOF
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    b_img=before_change_img
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    b_cnt=before_change_cnt
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    a_img=after_change_img
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    a_cnt=after_change_cnt
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    # Build from Dockerfile FROM non-existing local image
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    run_podman build -t $b_img $PODMAN_TMPDIR
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    run_podman create --name $b_cnt $b_img
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    # Export built container as tarball
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    run_podman export -o $PODMAN_TMPDIR/$b_cnt.tar $b_cnt
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    run_podman rm -t 0 -f $b_cnt
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    # Modify tarball contents
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    echo "$_LOG_PROMPT tar --delete -f (tmpdir)/$b_cnt.tar tmp/testfile1"
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    tar --delete -f $PODMAN_TMPDIR/$b_cnt.tar tmp/testfile1
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    echo "$_LOG_PROMPT tar -C (tmpdir) -rf (tmpdir)/$b_cnt.tar tmp/testfile2"
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    tar -C $PODMAN_TMPDIR -rf $PODMAN_TMPDIR/$b_cnt.tar tmp/testfile2
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    # Import tarball and Tag imported image
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    run_podman import -q $PODMAN_TMPDIR/$b_cnt.tar \
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        --change "CMD sh -c \
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        \"trap 'exit 33' 2;
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        while true; do sleep 0.05;done\"" $a_img
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    # Run imported image to confirm tarball modification, block on non-special signal
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    run_podman run --name $a_cnt -d $a_img
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    # Confirm testfile1 is deleted from tarball
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    run_podman 1 exec $a_cnt cat /tmp/testfile1
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    is "$output" ".*can't open '/tmp/testfile1': No such file or directory"
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    # Confirm testfile2 is added to tarball
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    run_podman exec $a_cnt cat /tmp/testfile2
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    is "$output" "modified tar file" "modify tarball content"
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    # Kill can send non-TERM/KILL signal to container to exit
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    run_podman kill --signal 2 $a_cnt
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    run_podman wait $a_cnt
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    # Confirm exit within timeout
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    run_podman ps -a --filter name=$a_cnt --format '{{.Status}}'
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    is "$output" "Exited (33) .*" "Exit by non-TERM/KILL"
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    run_podman rm -t 0 -f $a_cnt
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    run_podman rmi $b_img $a_img
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}
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