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|
#!/usr/bin/env bats
load helpers
@test "additional-stores" {
case "$STORAGE_DRIVER" in
overlay*|vfs)
;;
*)
skip "not supported by driver $STORAGE_DRIVER"
;;
esac
# Initialize a store somewhere that we'll later use as a read-only store.
storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot layers
# Fail this test if we can't initialize the driver with the option.
storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root layers
# Create a layer in what will become the read-only store.
run storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot --debug=false create-layer
[ "$status" -eq 0 ]
[ "$output" != "" ]
lowerlayer="$output"
# Mount the layer in what will become the read-only store.
run storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot --debug=false mount $lowerlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
lowermount="$output"
# Put a file in the layer in what will become the read-only store.
createrandom "$lowermount"/layer1file1
# Create a second layer based on the first one in what will become the read-only store.
run storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot --debug=false create-layer "$lowerlayer"
[ "$status" -eq 0 ]
[ "$output" != "" ]
midlayer="$output"
# Mount that layer, too.
run storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot --debug=false mount $midlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
midmount="$output"
# Check that the file from the first layer is there.
test -s "$midmount"/layer1file1
# Check that we can remove it...
rm -f -v "$midmount"/layer1file1
# ... and that doing so doesn't affect the first layer.
test -s "$lowermount"/layer1file1
# Create a new file in this layer.
createrandom "$midmount"/layer2file1
# Unmount this layer.
storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot unmount $midlayer
# Unmount the first layer.
storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot unmount $lowerlayer
# Create an image using this second layer.
run storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot --debug=false create-image $midlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
lowerimage=${output%% *}
# We no longer need to use the read-only root as a writeable location, so shut it down.
storage --graph ${TESTDIR}/ro-root --run ${TESTDIR}/ro-runroot shutdown
# Create a third layer based on the second one.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false create-layer "$midlayer"
[ "$status" -eq 0 ]
[ "$output" != "" ]
upperlayer="$output"
# Mount this layer.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false mount $upperlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
uppermount="$output"
# Check that the file we removed from the second layer is still gone.
run test -s "$uppermount"/layer1file1
[ "$status" -ne 0 ]
# Check that the file we added to the second layer is still there.
test -s "$uppermount"/layer2file1
# Unmount the third layer.
storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root unmount $upperlayer
# Create an image using this third layer.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false create-image $upperlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
upperimage=${output%% *}
# Create a container based on the upperimage.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false create-container "$upperimage"
[ "$status" -eq 0 ]
[ "$output" != "" ]
uppercontainer="$output"
# Mount this container.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false mount $uppercontainer
[ "$status" -eq 0 ]
[ "$output" != "" ]
uppercontainermount="$output"
# Check that the file we removed from the second layer is still gone.
run test -s "$uppercontainermount"/layer1file1
[ "$status" -ne 0 ]
# Check that the file we added to the second layer is still there.
test -s "$uppercontainermount"/layer2file1
# Unmount the container.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false unmount $uppercontainer
[ "$status" -eq 0 ]
[ "$output" != "" ]
# Delete the container.
storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root delete-container $uppercontainer
[ "$status" -eq 0 ]
[ "$output" != "" ]
# Create a container based on the lowerimage.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false create-container "$lowerimage"
[ "$status" -eq 0 ]
[ "$output" != "" ]
container="$output"
# Mount this container.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root --debug=false mount $container
[ "$status" -eq 0 ]
[ "$output" != "" ]
containermount="$output"
# Check that the file we removed from the second layer is still gone.
run test -s "$containermount"/layer1file1
[ "$status" -ne 0 ]
# Check that the file we added to the second layer is still there.
test -s "$containermount"/layer2file1
# Unmount the container.
storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root delete-container $container
# Check that the first two layers and the first image are marked read-only, and that the rest are not.
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root layer $lowerlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
[[ "$output" =~ "Read Only: true" ]]
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root layer $midlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
[[ "$output" =~ "Read Only: true" ]]
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root layer $upperlayer
[ "$status" -eq 0 ]
[ "$output" != "" ]
! [[ "$output" =~ "Read Only: true" ]]
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root image $lowerimage
[ "$status" -eq 0 ]
[ "$output" != "" ]
[[ "$output" =~ "Read Only: true" ]]
run storage --storage-opt ${STORAGE_DRIVER}.imagestore=${TESTDIR}/ro-root image $upperimage
[ "$status" -eq 0 ]
[ "$output" != "" ]
! [[ "$output" =~ "Read Only: true" ]]
}
|
