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Diffstat (limited to 'test/system/160-volumes.bats')
| -rw-r--r-- | test/system/160-volumes.bats | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/test/system/160-volumes.bats b/test/system/160-volumes.bats new file mode 100644 index 000000000..cd9f3c8ad --- /dev/null +++ b/test/system/160-volumes.bats @@ -0,0 +1,234 @@ +#!/usr/bin/env bats -*- bats -*- +# +# podman volume-related tests +# + +load helpers + +function setup() { + basic_setup + + run_podman '?' volume rm -a +} + +function teardown() { + run_podman '?' rm -a --volumes + run_podman '?' volume rm -a -f + + basic_teardown +} + + +# Simple volume tests: share files between host and container +@test "podman run --volumes : basic" { + skip_if_remote "volumes cannot be shared across hosts" + + # Create three temporary directories + vol1=${PODMAN_TMPDIR}/v1_$(random_string) + vol2=${PODMAN_TMPDIR}/v2_$(random_string) + vol3=${PODMAN_TMPDIR}/v3_$(random_string) + mkdir $vol1 $vol2 $vol3 + + # In each directory, write a random string to a file + echo $(random_string) >$vol1/file1_in + echo $(random_string) >$vol2/file2_in + echo $(random_string) >$vol3/file3_in + + # Run 'cat' on each file, and compare against local files. Mix -v / --volume + # flags, and specify them out of order just for grins. The shell wildcard + # expansion must sort vol1/2/3 lexically regardless. + v_opts="-v $vol1:/vol1:z --volume $vol3:/vol3:z -v $vol2:/vol2:z" + run_podman run --rm $v_opts $IMAGE sh -c "cat /vol?/file?_in" + + for i in 1 2 3; do + eval voldir=\$vol${i} + is "${lines[$(($i - 1))]}" "$(< $voldir/file${i}_in)" \ + "contents of /vol${i}/file${i}_in" + done + + # Confirm that container sees vol1 as a mount point + run_podman run --rm $v_opts $IMAGE mount + is "$output" ".* on /vol1 type .*" "'mount' in container lists vol1" + + # Have the container do write operations, confirm them on host + out1=$(random_string) + run_podman run --rm $v_opts $IMAGE sh -c "echo $out1 >/vol1/file1_out; + cp /vol2/file2_in /vol3/file3_out" + is "$(<$vol1/file1_out)" "$out1" "contents of /vol1/file1_out" + is "$(<$vol3/file3_out)" "$(<$vol2/file2_in)" "contents of /vol3/file3_out" + + # Writing to read-only volumes: not allowed + run_podman 1 run --rm -v $vol1:/vol1ro:z,ro $IMAGE sh -c "touch /vol1ro/abc" + is "$output" ".*Read-only file system" "touch on read-only volume" +} + + +# Named volumes +@test "podman volume create / run" { + myvolume=myvol$(random_string) + mylabel=$(random_string) + + # Create a named volume + run_podman volume create --label l=$mylabel $myvolume + is "$output" "$myvolume" "output from volume create" + + # Confirm that it shows up in 'volume ls', and confirm values + run_podman volume ls --format json + tests=" +Name | $myvolume +Driver | local +Labels.l | $mylabel +" + parse_table "$tests" | while read field expect; do + actual=$(jq -r ".[0].$field" <<<"$output") + is "$actual" "$expect" "volume ls .$field" + done + + # Run a container that writes to a file in that volume + mountpoint=$(jq -r '.[0].Mountpoint' <<<"$output") + rand=$(random_string) + run_podman run --rm --volume $myvolume:/vol $IMAGE sh -c "echo $rand >/vol/myfile" + + # Confirm that the file is visible, with content, outside the container + is "$(<$mountpoint/myfile)" "$rand" "we see content created in container" + + # Clean up + run_podman volume rm $myvolume +} + + +# Running scripts (executables) from a volume +@test "podman volume: exec/noexec" { + myvolume=myvol$(random_string) + + run_podman volume create $myvolume + is "$output" "$myvolume" "output from volume create" + + run_podman volume inspect --format '{{.Mountpoint}}' $myvolume + mountpoint="$output" + + # Create a script, make it runnable + rand=$(random_string) + cat >$mountpoint/myscript <<EOF +#!/bin/sh +echo "got here -$rand-" +EOF + chmod 755 $mountpoint/myscript + + # By default, volumes are mounted noexec. This should fail. + run_podman 126 run --rm --volume $myvolume:/vol:z $IMAGE /vol/myscript + is "$output" ".* OCI runtime permission denied.*" "run on volume, noexec" + + # With exec, it should pass + run_podman run --rm -v $myvolume:/vol:z,exec $IMAGE /vol/myscript + is "$output" "got here -$rand-" "script in volume is runnable with exec" + + # Clean up + run_podman volume rm $myvolume +} + + +# Anonymous temporary volumes, and persistent autocreated named ones +@test "podman volume, implicit creation with run" { + + # No hostdir arg: create anonymous container with random name + rand=$(random_string) + run_podman run -v /myvol $IMAGE sh -c "echo $rand >/myvol/myfile" + + run_podman volume ls -q + tempvolume="$output" + + # We should see the file created in the container + run_podman volume inspect --format '{{.Mountpoint}}' $tempvolume + mountpoint="$output" + test -e "$mountpoint/myfile" + is "$(< $mountpoint/myfile)" "$rand" "file contents, anonymous volume" + + # Remove the container, using rm --volumes. Volume should now be gone. + run_podman rm -a --volumes + run_podman volume ls -q + is "$output" "" "anonymous volume is removed after container is rm'ed" + + # Create a *named* container. This one should persist after container ends + myvol=myvol$(random_string) + rand=$(random_string) + + run_podman run --rm -v $myvol:/myvol:z $IMAGE \ + sh -c "echo $rand >/myvol/myfile" + run_podman volume ls -q + is "$output" "$myvol" "autocreated named container persists" + + # ...and should be usable, read/write, by a second container + run_podman run --rm -v $myvol:/myvol:z $IMAGE \ + sh -c "cp /myvol/myfile /myvol/myfile2" + + run_podman volume rm $myvol + + # Autocreated volumes should also work with keep-id + # All we do here is check status; podman 1.9.1 would fail with EPERM + myvol=myvol$(random_string) + run_podman run --rm -v $myvol:/myvol:z --userns=keep-id $IMAGE \ + touch /myvol/myfile + + run_podman volume rm $myvol +} + + +# Confirm that container sees the correct id +@test "podman volume with --userns=keep-id" { + is_rootless || skip "only meaningful when run rootless" + + myvoldir=${PODMAN_TMPDIR}/volume_$(random_string) + mkdir $myvoldir + touch $myvoldir/myfile + + # With keep-id + run_podman run --rm -v $myvoldir:/vol:z --userns=keep-id $IMAGE \ + stat -c "%u:%s" /vol/myfile + is "$output" "$(id -u):0" "with keep-id: stat(file in container) == my uid" + + # Without + run_podman run --rm -v $myvoldir:/vol:z $IMAGE \ + stat -c "%u:%s" /vol/myfile + is "$output" "0:0" "w/o keep-id: stat(file in container) == root" +} + + +# 'volume prune' identifies and cleans up unused volumes +@test "podman volume prune" { + # Create four named volumes + local -a v=() + for i in 1 2 3 4;do + vol=myvol${i}$(random_string) + v[$i]=$vol + run_podman volume create $vol + done + + # Run two containers: one mounting v1, one mounting v2 & v3 + run_podman run --name c1 --volume ${v[1]}:/vol1 $IMAGE date + run_podman run --name c2 --volume ${v[2]}:/vol2 -v ${v[3]}:/vol3 \ + $IMAGE date + + # prune should remove v4 + run_podman volume prune --force + is "$output" "${v[4]}" "volume prune, with 1, 2, 3 in use, deletes only 4" + + # Remove the container using v2 and v3. Prune should now remove those. + # The 'echo sort' is to get the output sorted and in one line. + run_podman rm c2 + run_podman volume prune --force + is "$(echo $(sort <<<$output))" "${v[2]} ${v[3]}" \ + "volume prune, after rm c2, deletes volumes 2 and 3" + + # Remove the final container. Prune should now remove v1. + run_podman rm c1 + run_podman volume prune --force + is "$output" "${v[1]}" "volume prune, after rm c2 & c1, deletes volume 1" + + # Further prunes are NOPs + run_podman volume prune --force + is "$output" "" "no more volumes to prune" +} + + +# vim: filetype=sh |