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summary: Checks handling of common snap directories of parallel installed snaps
details: |
Snapd allows installation of the same snap more than once by combining the
same snap name with different values of an instance key.
Installation of a snap under an instance key is somewhat different than
installation of a snap with an empty instance key, because the a set of
directories without the key must also be created as anchor points for the
bind mount system used at runtime.
The test installs a number of instances (with and without the instance key)
and removes them one by one, ensuring that in all cases the common directory
is only removed once all instances are gone.
# slow in autopkgtest (>1m)
backends: [-autopkgtest]
prepare: |
snap set system experimental.parallel-instances=true
restore: |
snap set system experimental.parallel-instances=null
execute: |
echo "Install a snap with instance key set"
"$TESTSTOOLS"/snaps-state install-local-as test-snapd-sh test-snapd-sh_foo
# foo instance directories are present
SNAP_MOUNT_DIR="$(os.paths snap-mount-dir)"
test -d "$SNAP_MOUNT_DIR/test-snapd-sh_foo"
test -d "/var/snap/test-snapd-sh_foo"
# and so are the common directories
test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
test -d "/var/snap/test-snapd-sh"
# get another revision of test-snapd-sh_foo
"$TESTSTOOLS"/snaps-state install-local-as test-snapd-sh test-snapd-sh_foo
# install instance-key-less snap
"$TESTSTOOLS"/snaps-state install-local test-snapd-sh
# and a bar instance
"$TESTSTOOLS"/snaps-state install-local-as test-snapd-sh test-snapd-sh_bar
# bar instance directories are present
test -d "$SNAP_MOUNT_DIR/test-snapd-sh_bar"
test -d "/var/snap/test-snapd-sh_bar"
# remove foo instance, rev x1
snap remove --revision=x1 test-snapd-sh_foo
# foo instance directories are present
test -d "$SNAP_MOUNT_DIR/test-snapd-sh_foo"
test -d "/var/snap/test-snapd-sh_foo"
# and so are the common directories, required by other revision of foo
# instance and other snaps
test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
test -d "/var/snap/test-snapd-sh"
# remove foo instance snap
snap remove --purge test-snapd-sh_foo
# foo instance directories should be gone now
not test -d "$SNAP_MOUNT_DIR/test-snapd-sh_foo"
not test -d "/var/snap/test-snapd-sh_foo"
# common directories are still around, required by test-snapd-sh and
# test-snapd-sh_bar
test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
test -d "/var/snap/test-snapd-sh"
# remove instance-key-less one
snap remove --purge test-snapd-sh
# common directories are still around, required by test-snapd-sh_bar
test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
test -d "/var/snap/test-snapd-sh"
# remove bar instance
snap remove --purge test-snapd-sh_bar
not test -d "$SNAP_MOUNT_DIR/test-snapd-sh_bar"
not test -d "/var/snap/test-snapd-sh_bar"
# common directors should be gone now too
not test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
not test -d "/var/snap/test-snapd-sh"
# make sure that the sole snap without instance key is handled correctly too
"$TESTSTOOLS"/snaps-state install-local test-snapd-sh
# another revision
"$TESTSTOOLS"/snaps-state install-local test-snapd-sh
test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
test -d "/var/snap/test-snapd-sh"
snap remove --purge test-snapd-sh
not test -d "$SNAP_MOUNT_DIR/test-snapd-sh"
not test -d "/var/snap/test-snapd-sh"
|
