Module snapshot_resume_options 

Options for the guarded Docker snapshot resume (issue #224):

--snapshot-wait <seconds>          wait for the host snapshot lock
--snapshot-disk-wait <seconds>     wait for free disk instead of refusing
--remove-original-after <seconds>  remove the original only if the
                                   replacement still runs after the delay
--snapshot-size-hint <bytes>       skip the `docker inspect --size` walk
--snapshot-prepare <command>       `docker exec` a command in the original
                                   before it is committed

They only apply to --resume. The two waits also read START_SNAPSHOT_LOCK_WAIT and START_SNAPSHOT_DISK_WAIT when the flags are absent, so a supervisor can set them once for every resume it runs.

Structs

SnapshotResumeOptions

Parsed snapshot resume options; None when the flag was not given.

SnapshotSettings

What a snapshot resume reads from its overrides.

Functions

insert_overrides

Add the options to the resume overrides object.

parse

Parse one snapshot option; returns the arguments consumed, 0 when args[index] is not one.

parse_seconds

Parse a non-negative number of seconds; fractions are allowed.

parse_size_hint

Parse a size in bytes; k, m, g and t suffixes are 1024-based.

validate

Reject snapshot options outside --resume and fill the waits from the environment.

validate_with_env