trivy do not scan vulnerabilities on trivy k8s ... sub command

[chen-keinan]

Description

when running :

trivy k8s cluster --report summary

The following error appear:

2023-05-16T10:47:53.743+0300	ERROR	Error during vulnerabilities or misconfiguration scan: scan error: unable to initialize a scanner: unable to initialize a docker scanner: no image sources supplied

and no vulnerability scan result appear

Desired Behavior

error to not appear and vulnerability scan result to show

Actual Behavior

I get the following error:

2023-05-16T10:47:53.743+0300	ERROR	Error during vulnerabilities or misconfiguration scan: scan error: unable to initialize a scanner: unable to initialize a docker scanner: no image sources supplied

and no vulnerability scan result appear

Reproduction Steps

run the following on main branch (not official release)


trivy k8s cluster --report summary

### Target

Kubernetes

### Scanner

Vulnerability

### Output Format

Table

### Mode

Standalone

### Debug Output

```bash
2023-05-16T10:47:53.743+0300	ERROR	Error during vulnerabilities or misconfiguration scan: scan error: unable to initialize a scanner: unable to initialize a docker scanner: no image sources supplied

Operating System

Mac OS

Version

main branch

Checklist

• Run trivy --reset
• Read the troubleshooting

[chen-keinan]

issue #4409 opened