[Solved] If you run docker trust inspect nginx and see no signatures, what does it mean? — Ans: The nginx image is not signed or no signatures are available | Docker

Docker - Security

If you run docker trust inspect nginx and see no signatures, what does it mean?

ADocker daemon is not running

BThe image is corrupted and cannot be trusted

CThe nginx image is not signed or no signatures are available

DThe image is signed but the command is incorrect

Step-by-Step Solution

Solution:

Step 1: Understand 'docker trust inspect' output
This command shows signatures if present; no signatures means unsigned or missing signatures.
Step 2: Eliminate other options
No signatures does not imply corruption or daemon issues; command is correct.
Final Answer:
The nginx image is not signed or no signatures are available -> Option C
Quick Check:
No signatures in inspect = image unsigned [OK]

Quick Trick: No signatures in inspect means image unsigned [OK]

Common Mistakes:

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If you run docker trust inspect nginx and see no signatures, what does it mean?