run: automatically generate a container name from image ref #693
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e.g.,
nerdctl run nginx
creates a container named "nginx-62edd".See
pkg/referenceutil/referenceutil_test.go
for more examples.The generated names are more meaningful than Docker/Podman-generated names such as "jolly_kepler". However, the generated names MUST NOT be parsed.
The name can be unset by specifying
--name=""
explicitly.