On a coreOS (899.15.0) machine, when I execute docker search and images I get the following results :
docker search private-registry:5000/
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
docker images on the private registry machine:
REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE
nginx latest e32087da8ee6dfa45221c48670fa9475f3d8a53a0e9ccabef4f741c62c77d49b 2 weeks ago 182.6 MB
registry 0.9.1 facc02b3acf6f811e8eace6d07b34cd5ab687e926ac5b5231da93264b259f1a4 12 weeks ago 422.8 MB
<none> <none> db81ebdc7ebd3d7aec05d4faa6f4c9c2e35954896e968bce2f90a9736485aa06 3 months ago 422.8 MB
...and a few more images
The reference for docker search
mentions that it looks up on docker hub, but since I am specifying a specific registry here, I suppose it is looking up in the private repository.
I am not sure what is the difference between these two commands here and why the difference in results.