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>
Given these same exact functions are both now available in
opencontainers/runc (libcontainer/system) package, and we only use the
`SetSubreaper` today from the shim, there seems to be no reason for
duplication.
Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com>
To avoid buffer bloat in long running processes, we try to use buffer
pools where possible. This is meant to address shim memory usage issues,
but may not be the root cause.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
This improves the exec support so that they can run along with the
normal stress tests. You don't have to pick exec stres or container
stress. They both run at the same time and report the different values.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
After comtemplation, the complexity of the logging module system
outweighs its usefulness. This changeset removes the system and restores
lighter weight code paths. As a concession, we can always provide more
context when necessary to log messages to understand them without having
to fork the context for a certain set of calls.
Signed-off-by: Stephen J Day <stephen.day@docker.com>
This allows other packages and plugins to easily exec things without
racing with the reaper.
The reaper is mostly needed in the shim but can be removed in containerd
in favor of the `exec.Cmd` apis
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This linter checks for unnecessary type convertions.
Some convertions are whitelisted because their type is different
on 32bit platforms
Signed-off-by: Daniel Nephin <dnephin@gmail.com>
Preserves the order of the tree output between each execution. Slightly
refactored the behavior to be more "object oriented".
Signed-off-by: Stephen J Day <stephen.day@docker.com>
- Use lease API (previoisly, GC was not supported)
- Refactored interfaces for ease of future Docker v1 importer support
For usage, please refer to `ctr images import --help`.
Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
This subreaper should always be turned on for containerd unless
explicitly needed for it to be off.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Could issues where when exec processes fail the wait block is not
released.
Second, you could not dump stacks if the reaper loop locks up.
Third, the publisher was not waiting on the correct pid.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
