Mounting a directory inside a read only container requires that to be
created in advance, but `runc` worked around that if the rootfs was not
originally read only.
You cannot even bind mount a file that does not exist into a
read only container.
The containerd test is given a disk, as running on an overlay does
not work; however it is also disabled as one of the parts of the test
is failing, needs investigation.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit adds a myriad of test cases to ensure the format and mount
and extend packages are working as expected
Signed-off-by: Dave Tucker <dt@docker.com>
