If a container doesn't exist in the memdb, First will return nil, not an
error. This should be checked for before using the result.
Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
Upstream-commit: c26b0cdfd1a026af88fcfbed9d3c3acdd6d171a0
Component: engine
Reuse existing structures and rely on json serialization to deep copy
Container objects.
Also consolidate all "save" operations on container.CheckpointTo, which
now both saves a serialized json to disk, and replicates state to the
ACID in-memory store.
Signed-off-by: Fabio Kung <fabio.kung@gmail.com>
Upstream-commit: edad52707c536116363031002e6633e3fec16af5
Component: engine
Also hide ViewDB behind an inteface.
Signed-off-by: Fabio Kung <fabio.kung@gmail.com>
Upstream-commit: aacddda89df05b88a6d15fb33c42864760385ab2
Component: engine
This can be used by readers/queries so they don't need locks.
Signed-off-by: Fabio Kung <fabio.kung@gmail.com>
Upstream-commit: 054728b1f555892c6c0bfd7abfbaeb2fedbc8f10
Component: engine
