DCA · Question #93
In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository? Solution: Use the DTR web Ul…
The correct answer is A. Yes. Docker Trusted Registry (DTR) allows administrators to configure repositories to make image tags immutable.
Question
In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository? Solution: Use the DTR web Ul to make all tags in the repository immutable.
Options
- AYes
- BNo
How the community answered
(57 responses)- A93% (53)
- B7% (4)
Why each option
Docker Trusted Registry (DTR) allows administrators to configure repositories to make image tags immutable.
Docker Trusted Registry (DTR) provides a feature to mark repository tags as immutable through its web UI. When a tag is immutable, no new image can be pushed to that tag, effectively preventing it from being overwritten by subsequent pushes.
DTR offers a specific setting in its web UI to enforce tag immutability, which prevents existing image tags from being overwritten.
Concept tested: DTR immutable tags
Source: https://docs.docker.com/datacenter/dtr/2.7/guides/admin/configure/set-tag-immutability/
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