This regression was introduced in 616fb3e55cbc85647026f6e409af17e1011a85c4,
with the node resolution refactor.
The core issue here is just that we would unconditionally set the
solve opt's platform to the default current platform, which was
incorrect. We can prevent this easily by having a special case for the
default case, like we had before, and then not setting the platforms
field on this (which keeping the resolution behavior which was
introduced).
Signed-off-by: Justin Chadwell <me@jedevc.com>
This patch reworks and updates the node resolution logic for selecting a
node from a builder.
The new implementation reworks the logic to make use of containerd's
platforms.Matcher interface instead of manually associated strings, and
additionally provides a few behavioural changes over the original
implementation, namely platforms can be matched with non-strict
semantics. e.g. i386 builds can be scheduled on an amd64 node, arm/v6
builds can be scheduled on an arm/v7 node.
We also add a new collection of tests for tracking regressions and
making the intended behaviour clearer.
Signed-off-by: Justin Chadwell <me@jedevc.com>