Sebastiaan van Stijn 1cc08f7023 Produce fatal error when running on kernel < 3.10.0 ...

Running on kernel versions older than 3.10 has not been
supported for a while (as it's known to be unstable).

With the containerd integration, this has become more
apparent, because kernels < 3.4 don't support PR_SET_CHILD_SUBREAPER,
which is required for containerd-shim to run.

Change the previous "warning" to a "fatal" error, so
that we refuse to start.

There's still an escape-hatch for users by setting
"DOCKER_NOWARN_KERNEL_VERSION=1" so that they can
run "at their own risk".

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 51b23d88422918c24291f5876df35f91b23a446a
Component: engine

2016-04-15 14:33:56 +02:00

components/engine

Produce fatal error when running on kernel < 3.10.0

2016-04-15 14:33:56 +02:00

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