This uses a simple `IsAbs` check to see if we are using an on disk path
for a unix socket vs an address since we do not prefix addresses with
`unix://` or `tcp://`.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Adds capability to build the manpages via the go-md2man utility to the
make framework for containerd
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
Updates overlay remove to simply remove the reference, adds
a cleanup method for discarding the directory.
Updates snapshot create to setup the directory structure while
in the transaction, to prevent cleanup from removing directories
which are part of a create.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Cleans up loop devices if part of the test or mount process fails.
Also increases btrfs default file size to 650MB to accommodate
minimum btrfs size on ppc64le and s390x
Signed-off-by: Christopher Jones <tophj@linux.vnet.ibm.com>
Prevents the copy method from calling discard on the
writer when the reader is not seekable. Instead,
the copy method will discard up to the offset.
Truncate is a more expensive operation since any
bytes that are truncated already have their hash calculated
and are stored on disk in the backend. Re-writing bytes
which were truncated requires transfering the data over
GRPC again and re-computing the hash up to the point of
truncation.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
For missing required parameters adds error return before attempting any
actions to `ctr images` commands.
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
To avoid having the shim hold on to too much memory, we've made a few
adjustments to favor more aggressive reclamation of memory from the
operating system. Typically, this would be negligible, on the order of a
few megabytes, but this is impactful when running several containers.
The first fix is to lower the threshold used to determine when to run
the garbage collector. The second runs `runtime/debug.FreeOSMemory` at a
regular interval.
Under test, this result in a sustained memory usage of around 3.7 MB.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
Currently directory changes are not added to the list of
included directories, allowing those directories to receive
duplicate entries where there is both a metadata change to the
directory and a change to a file under that directory.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
This changes the Windows runtime to use the snapshotter and differ
created layers, and updates the ctr commands to use the snapshotter and differ.
Signed-off-by: Darren Stahl <darst@microsoft.com>
This implements the Windows snapshotter and diff Apply function.
This allows for Windows layers to be created, and layers to be pulled
from the hub.
Signed-off-by: Darren Stahl <darst@microsoft.com>
