Allows the client to choose the context to finish the lease.
This allows the client to switch contexts when the main context
used to the create the lease may have been cancelled.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Running the density tool will report Pss and Rss total and per container
values for shim memory usage. Values are reported in KB.
```bash
containerd-stress density --count 500
INFO[0000] pulling docker.io/library/alpine:latest
INFO[0000] generating spec from image
{"pss":421188,"rss":2439688,"pssPerContainer":842,"rssPerContainer":4879}
```
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Without this `ctr run` can fail with:
ctr: parent snapshot sha256:70798fd80095f40b41baa5d107fb61532bfe494d96313fea01e8fcbf4e8743ee does not exist: not found
My image was produced by buildkit, which doesn't unpack (I think this makes
sense since buildkit doesn't know if I am going to run the image or export/push
it etc).
Signed-off-by: Ian Campbell <ian.campbell@docker.com>
Adds a useful flag to `ctr` to enable joining any existing Linux
namespaces for any namespace types (network, pid, ipc, etc.) using the
existing With helper in the oci package.
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
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>
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>
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>
