Allows decoding of minimal OCI specs with empty linux objects by
providing default values for missing fields. Also added unit test to
ensure that empty Linux struct {} works correctly with the fix.
Many fields on the various OCI types use "omitempty" for encoding and
decoding the json representation in golang. This PR adds custom json
decoder functions to allow for behavior similar to "omitempty".
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Signed-off-by: Kathryn Baldauf <k_baldauf@apple.com>
Fixes#320
Today we don't actually setup any cgroup limits, as because there's a
1-1 mapping from container<->vm we can just use the VMs resources as the
limit (can't use more than 1GB if that's all the guest sees :) ).
However, if we ever supported > 1 container in the guest it'd be
necessary to actually setup the cg limits. This change just sets a
memory limit and cpu toggles to match whatever was specific for the
container.
Danny Canter