summaryrefslogtreecommitdiff
path: root/test/system/060-mount.bats
blob: ba37ea5e14c56bdabb4c5f074393611c753319df (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
#!/usr/bin/env bats

load helpers

@test "podman mount - basic test" {
    # Only works with root (FIXME: does it work with rootless + vfs?)
    skip_if_rootless "mount does not work rootless"
    skip_if_remote "mounting remote is meaningless"

    f_path=/tmp/tmpfile_$(random_string 8)
    f_content=$(random_string 30)

    c_name=mount_test_$(random_string 5)
    run_podman run --name $c_name $IMAGE \
               sh -c "echo $f_content > $f_path"

    run_podman mount $c_name
    mount_path=$output

    test -d $mount_path
    test -e "$mount_path/$f_path"
    is $(< "$mount_path/$f_path") "$f_content" "contents of file, as read via fs"

    # Make sure that 'podman mount' (no args) returns the expected path
    run_podman mount --notruncate
    # FIXME: is it worth the effort to validate the CID ($1) ?
    reported_mountpoint=$(echo "$output" | awk '{print $2}')
    is $reported_mountpoint $mount_path "mountpoint reported by 'podman mount'"

    # umount, and make sure files are gone
    run_podman umount $c_name
    if [ -e "$mount_path/$f_path" ]; then
        die "Mounted file exists even after umount: $mount_path/$f_path"
    fi
}


@test "podman image mount" {
    skip_if_remote "mounting remote is meaningless"
    skip_if_rootless "too hard to test rootless"

    # Start with clean slate
    run_podman image umount -a

    # Get full image ID, to verify umount
    run_podman image inspect --format '{{.ID}}' $IMAGE
    iid="$output"

    # Mount, and make sure the mount point exists
    run_podman image mount $IMAGE
    mount_path="$output"

    test -d $mount_path

    # Image is custom-built and has a file containing the YMD tag. Check it.
    testimage_file="/home/podman/testimage-id"
    test -e "$mount_path$testimage_file"
    is $(< "$mount_path$testimage_file") "$PODMAN_TEST_IMAGE_TAG"  \
       "Contents of $testimage_file in image"

    # 'image mount', no args, tells us what's mounted
    run_podman image mount
    is "$output" "$IMAGE *$mount_path" "podman image mount with no args"

    # Clean up
    run_podman image umount $IMAGE
    is "$output" "$iid" "podman image umount: image ID of what was umounted"

    run_podman image umount $IMAGE
    is "$output" "" "podman image umount: does not re-umount"

    run_podman 125 image umount no-such-container
    is "$output" "Error: no-such-container: image not known" \
       "error message from image umount no-such-container"

    run_podman image mount
    is "$output" "" "podman image mount, no args, after umount"
}

@test "podman run --mount image" {
    skip_if_rootless "too hard to test rootless"

    # Run a container with an image mount
    run_podman run --rm --mount type=image,src=$IMAGE,dst=/image-mount $IMAGE diff /etc/os-release /image-mount/etc/os-release

    # Make sure the mount is read only
    run_podman 1 run --rm --mount type=image,src=$IMAGE,dst=/image-mount $IMAGE touch /image-mount/read-only
    is "$output" "touch: /image-mount/read-only: Read-only file system"

    # Make sure that rw,readwrite work
    run_podman run --rm --mount type=image,src=$IMAGE,dst=/image-mount,rw=true $IMAGE touch /image-mount/readwrite
    run_podman run --rm --mount type=image,src=$IMAGE,dst=/image-mount,readwrite=true $IMAGE touch /image-mount/readwrite

    skip_if_remote "mounting remote is meaningless"

    # The mount should be cleaned up during container removal as no other entity mounted the image
    run_podman image umount $IMAGE
    is "$output" "" "image mount should have been cleaned up during container removal"

    # Now make sure that the image mount is not cleaned up during container removal when another entity mounted the image
    run_podman image mount $IMAGE
    run_podman run --rm --mount type=image,src=$IMAGE,dst=/image-mount $IMAGE diff /etc/os-release /image-mount/etc/os-release

    run_podman image inspect --format '{{.ID}}' $IMAGE
    iid="$output"

    run_podman image umount $IMAGE
    is "$output" "$iid" "podman image umount: image ID of what was umounted"

    run_podman image umount $IMAGE
    is "$output" "" "image mount should have been cleaned up via 'image umount'"

    # Run a container in the background (source is the ID instead of name)
    run_podman run -d --mount type=image,src=$iid,dst=/image-mount,readwrite=true $IMAGE sleep infinity
    cid="$output"

    # Unmount the image
    run_podman image umount $IMAGE
    is "$output" "$iid" "podman image umount: image ID of what was umounted"
    run_podman image umount $IMAGE
    is "$output" "" "image mount should have been cleaned up via 'image umount'"

    # Make sure that the mount in the container is unaffected
    run_podman exec $cid diff /etc/os-release /image-mount/etc/os-release
    run_podman exec $cid find /image-mount/etc/

    # Clean up
    run_podman stop -t 0 $cid
    run_podman rm -f $cid
}

@test "podman run --mount image inspection" {
    skip_if_rootless "too hard to test rootless"

    # Run a container in the background
    run_podman run -d --mount type=image,src=$IMAGE,dst=/image-mount,rw=true $IMAGE sleep infinity
    cid="$output"

    run_podman inspect --format "{{(index .Mounts 0).Type}}" $cid
    is "$output" "image" "inspect data includes image mount type"

    run_podman inspect --format "{{(index .Mounts 0).Source}}" $cid
    is "$output" "$IMAGE" "inspect data includes image mount source"

    run_podman inspect --format "{{(index .Mounts 0).Destination}}" $cid
    is "$output" "/image-mount" "inspect data includes image mount source"

    run_podman inspect --format "{{(index .Mounts 0).RW}}" $cid
    is "$output" "true" "inspect data includes image mount source"

    run_podman stop -t 0 $cid
    run_podman rm -f $cid
}

@test "podman mount external container - basic test" {
    # Only works with root (FIXME: does it work with rootless + vfs?)
    skip_if_rootless "mount does not work rootless"
    skip_if_remote "mounting remote is meaningless"

    # Create a container that podman does not know about
    external_cid=$(buildah from $IMAGE)

    run_podman mount $external_cid
    mount_path=$output

    # Test image will always have this file, and will always have the tag
    test -d $mount_path
    is $(< "$mount_path/home/podman/testimage-id") "$PODMAN_TEST_IMAGE_TAG"  \
       "Contents of well-known file in image"

    # Make sure that 'podman mount' (no args) returns the expected path
    run_podman mount --notruncate

    reported_mountpoint=$(echo "$output" | awk '{print $2}')
    is $reported_mountpoint $mount_path "mountpoint reported by 'podman mount'"

    # umount, and make sure files are gone
    run_podman umount $external_cid
    if [ -d "$mount_path" ]; then
        die "'podman umount' did not umount"
    fi
    buildah rm $external_cid
}

# vim: filetype=sh