mirror of https://github.com/containers/podman.git
Merge pull request #3887 from edsantiago/bats
podman cp: big set of system tests
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#!/usr/bin/env bats -*- bats -*-
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#
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# Tests for 'podman cp'
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#
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# ASSUMPTION FOR ALL THESE TESTS: /tmp in the container starts off empty
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#
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load helpers
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# Create two random-name random-content files in /tmp in the container
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# podman-cp them into the host using '/tmp/*', i.e. asking podman to
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# perform wildcard expansion in the container. We should get both
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# files copied into the host.
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@test "podman cp * - wildcard copy multiple files from container to host" {
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skip_if_remote "podman-remote does not yet handle cp"
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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rand_filename1=$(random_string 20)
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rand_content1=$(random_string 50)
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rand_filename2=$(random_string 20)
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rand_content2=$(random_string 50)
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run_podman run --name cpcontainer $IMAGE sh -c \
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"echo $rand_content1 >/tmp/$rand_filename1;
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echo $rand_content2 >/tmp/$rand_filename2"
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run_podman cp 'cpcontainer:/tmp/*' $dstdir
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test -e $dstdir/$rand_filename1 || die "file 1 not copied from container"
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test -e $dstdir/$rand_filename2 || die "file 2 not copied from container"
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is "$(<$dstdir/$rand_filename1)" "$rand_content1" "content of file 1"
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is "$(<$dstdir/$rand_filename2)" "$rand_content2" "content of file 2"
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run_podman rm cpcontainer
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}
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# Create a file on the host; make a symlink in the container pointing
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# into host-only space. Try to podman-cp that symlink. It should fail.
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@test "podman cp - will not recognize symlink pointing into host space" {
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skip_if_remote "podman-remote does not yet handle cp"
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skip "BROKEN: PLEASE ENABLE ONCE #3829 GETS FIXED"
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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echo "this file is on the host" >$srcdir/hostfile
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run_podman run --name cpcontainer $IMAGE \
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sh -c "ln -s $srcdir/hostfile /tmp/badlink"
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# This should fail because, from the container's perspective, the symlink
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# points to a nonexistent file
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run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir/
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# FIXME: this might not be the exactly correct error message
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is "$output" ".*error evaluating symlinks.*lstat.*no such file or dir" \
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"Expected error from copying invalid symlink"
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# make sure there are no files in dstdir
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is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"
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run_podman rm cpcontainer
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}
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# Issue #3829 - like the above, but with a level of indirection in the
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# wildcard expansion: create a file on the host; create a symlink in
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# the container named 'file1' pointing to this file; then another symlink
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# in the container pointing to 'file*' (file star). Try to podman-cp
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# this invalid double symlink. It must fail.
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@test "podman cp - will not expand globs in host space (#3829)" {
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skip_if_remote "podman-remote does not yet handle cp"
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skip "BROKEN: PLEASE ENABLE ONCE #3829 GETS FIXED"
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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echo "This file is on the host" > $srcdir/hostfile
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run_podman run --name cpcontainer $IMAGE \
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sh -c "ln -s $srcdir/hostfile file1;ln -s file\* copyme"
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run_podman 125 cp cpcontainer:copyme $dstdir
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is "$output" ".*error evaluating symlinks.*lstat.*no such file or dir" \
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"Expected error from copying invalid symlink"
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# make sure there are no files in dstdir
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is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"
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run_podman rm cpcontainer
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}
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# Another symlink into host space, this one named '*' (star). cp should fail.
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@test "podman cp - will not expand wildcard" {
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skip_if_remote "podman-remote does not yet handle cp"
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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echo "This file lives on the host" > $srcdir/hostfile
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run_podman run --name cpcontainer $IMAGE \
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sh -c "ln -s $srcdir/hostfile /tmp/\*"
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run_podman 125 cp 'cpcontainer:/tmp/*' $dstdir
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is "$output" ".*error evaluating symlinks.*lstat.*no such file or dir" \
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"Expected error from copying invalid symlink"
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# dstdir must be empty
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is "$(/bin/ls -1 $dstdir)" "" "incorrectly copied symlink from host"
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run_podman rm cpcontainer
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}
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###############################################################################
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# cp INTO container
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# THIS IS EXTREMELY WEIRD. Podman expands symlinks in weird ways.
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@test "podman cp into container: weird symlink expansion" {
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skip_if_remote "podman-remote does not yet handle cp"
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srcdir=$PODMAN_TMPDIR/cp-test-in
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dstdir=$PODMAN_TMPDIR/cp-test-out
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mkdir -p $srcdir $dstdir
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rand_filename1=$(random_string 20)
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rand_content1=$(random_string 50)
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echo $rand_content1 > $srcdir/$rand_filename1
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rand_filename2=$(random_string 20)
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rand_content2=$(random_string 50)
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echo $rand_content2 > $srcdir/$rand_filename2
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rand_filename3=$(random_string 20)
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rand_content3=$(random_string 50)
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echo $rand_content3 > $srcdir/$rand_filename3
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# Create tmp subdirectories in container, most with an invalid 'x' symlink
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# Keep container running so we can exec into it.
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run_podman run -d --name cpcontainer $IMAGE \
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sh -c "mkdir /tmp/d1;ln -s /tmp/nonesuch1 /tmp/d1/x;
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mkdir /tmp/d2;ln -s /tmp/nonesuch2 /tmp/d2/x;
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mkdir /tmp/d3;
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trap 'exit 0' 15;while :;do sleep 0.5;done"
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# Copy file from host into container, into a file named 'x'
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# Note that the second has a trailing slash; this will trigger mkdir
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run_podman cp $srcdir/$rand_filename1 cpcontainer:/tmp/d1/x
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is "$output" "" "output from podman cp 1"
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run_podman cp $srcdir/$rand_filename2 cpcontainer:/tmp/d2/x/
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is "$output" "" "output from podman cp 3"
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run_podman cp $srcdir/$rand_filename3 cpcontainer:/tmp/d3/x
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is "$output" "" "output from podman cp 3"
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# Read back.
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# In the first case, podman actually creates the file nonesuch1 (i.e.
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# podman expands 'x -> nonesuch1' and, instead of overwriting x,
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# creates an actual file).
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run_podman exec cpcontainer cat /tmp/nonesuch1
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is "$output" "$rand_content1" "cp creates destination file"
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# In the second case, podman creates a directory nonesuch2, then
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# creates a file with the same name as the input file. THIS IS WEIRD!
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run_podman exec cpcontainer cat /tmp/nonesuch2/$rand_filename2
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is "$output" "$rand_content2" "cp creates destination dir and file"
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# In the third case, podman (correctly imo) creates a file named 'x'
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run_podman exec cpcontainer cat /tmp/d3/x
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is "$output" "$rand_content3" "cp creates file named x"
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run_podman rm -f cpcontainer
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}
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# rhbz1741718 : file copied into container:/var/lib/foo appears as /foo
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# (docker only, never seems to have affected podman. Make sure it never does).
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@test "podman cp into a subdirectory matching GraphRoot" {
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skip_if_remote "podman-remote does not yet handle cp"
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# Create tempfile with random name and content
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srcdir=$PODMAN_TMPDIR/cp-test-in
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mkdir -p $srcdir
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rand_filename=$(random_string 20)
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rand_content=$(random_string 50)
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echo $rand_content > $srcdir/$rand_filename
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chmod 644 $srcdir/$rand_filename
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# Determine path to podman storage (eg /var/lib/c/s, or $HOME/.local/...)
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run_podman info --format '{{.store.GraphRoot}}'
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graphroot=$output
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# Create that directory in the container, and sleep (to keep container
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# running, so we can exec into it). The trap/while is so podman-rm will
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# run quickly instead of taking 10 seconds.
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run_podman run -d --name cpcontainer $IMAGE sh -c \
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"mkdir -p $graphroot; trap 'exit 0' 15;while :;do sleep 0.5;done"
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# Copy from host into container.
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run_podman cp $srcdir/$rand_filename cpcontainer:$graphroot/$rand_filename
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# ls, and confirm it's there.
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run_podman exec cpcontainer ls -l $graphroot/$rand_filename
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is "$output" "-rw-r--r-- .* 1 .* root .* 51 .* $graphroot/$rand_filename" \
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"File is copied into container in the correct (full) path"
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# Confirm it has the expected content (this is unlikely to ever fail)
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run_podman exec cpcontainer cat $graphroot/$rand_filename
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is "$output" "$rand_content" "Contents of file copied into container"
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run_podman rm -f cpcontainer
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}
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function teardown() {
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# In case any test fails, clean up the container we left behind
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run_podman rm -f cpcontainer
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basic_teardown
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}
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# vim: filetype=sh
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