Client/Server
At first, you need to launch Trivy server. It downloads vulnerability database automatically and continue to fetch the latest DB in the background.
$ trivy server --listen 0.0.0.0:8080
Then, specify the remote address.
===========================
+---------+------------------+----------+-------------------+---------------+
| LIBRARY | VULNERABILITY ID | SEVERITY | INSTALLED VERSION | FIXED VERSION |
+ +------------------+ + + +
| | CVE-2019-1563 | | | |
+ +------------------+----------+ + +
| | CVE-2019-1547 | LOW | | |
$ trivy client --remote http://localhost:8080 --token dummy alpine:3.10