It's a common scenario for admins and/or monitoring applications to
mount in the daemon root dir into a container. When doing so all mounts
get coppied into the container, often with private references.
This can prevent removal of a container due to the various mounts that
must be configured before a container is started (for example, for
shared /dev/shm, or secrets) being leaked into another namespace,
usually with private references.
This is particularly problematic on older kernels (e.g. RHEL < 7.4)
where a mount may be active in another namespace and attempting to
remove a mountpoint which is active in another namespace fails.
This change moves all container resource mounts into a common directory
so that the directory can be made unbindable.
What this does is prevents sub-mounts of this new directory from leaking
into other namespaces when mounted with `rbind`... which is how all
binds are handled for containers.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Fixes an issue where if cpu quota/period is sent via the update API, the
values are updated in the stored container data but not actually sent to
the running container.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Using parallel tests is nice, however it can cause an issue with
multiple daemons trying to make changes to iptables at the same time
which causes flakey tests.
This just disables iptables for the set of tests since it is not
required.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
This fix adds a test case for 35333: Devicemapper: ignore Nodata errors when delete thin device
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
When the containerd 1.0 runtime changes were made, we inadvertantly
removed the functionality where any running containers are killed on
startup when not using live-restore.
This change restores that behavior.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
split all non-cli portions into a new internal/test/environment package
Set a test environment on packages instead of creating new ones.
Signed-off-by: Daniel Nephin <dnephin@docker.com>
This adds a new package `integration` where `engine` integration tests
should live. Those integration tests should not depends on any `cli`
components (except from the `dockerd` daemon for now — to actually
start a daemon).
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
