Score:0

Is the latest Ubuntu 18.04 LTS image available on Docker Hub trusted/signed or not?

cz flag

I observed that 26 Nov 2020 Ubuntu 18.04 LTS image is last trusted/signed image on Docker Hub, is this true?

Here trusted means we are focusing on "Docker Content Trust".

When we are trying to pull Ubuntu:18.04 image with DOCKER_CONTENT_TRUST=1 (DCT enabled),we are getting image that is created 8 months ago. However if we set DOCKER_CONTENT_TRUST=0 , we get image that is created 15 days ago (created 14th July 2021 ). Based on the above observations , we stated that 26th Nov 2020 (created 8 month ago) Ubuntu 18.04 image is the last signed/trusted image. Could you please confirm once that latest image (14th July 2021)is pushed on Docker Hub is signed/trusted or not?

Artur Meinild avatar
vn flag
I've edited to focus on the main question, and not 3-4 additional questions.
guiverc avatar
cn flag
I don't understand your tags; this relates to the Xubuntu 18.04 desktop? but also docker, and to the Ubuntu SSO service Ubuntu-ONE. You mention Ubuntu base image; which is different to the ISOs provided by the Xubuntu team - so please clarify your question & how the tags related (Ubuntu's SSO service Ubuntu-ONE is operated by Canonical)
Aniket avatar
cz flag
There were no tags associated with questions and we had to select at-least 5 tags ..I selected those that are related to Ubuntu
Artur Meinild avatar
vn flag
You don't have to select 5 tags.
Score:1
vn flag

Ubuntu Docker images are official images released directly by Canonical. And it's correct that the 26 Nov 2020 Ubuntu 18.04 LTS image is the most recent signed image.

It seems signed images are updated on a less regular basis than unsigned, so you have to choose either signed with DCT or latest - you can't have both.

Aniket avatar
cz flag
Thanks for your response. I am here referring to Ubuntu 18.04 LTS image available on Docker Hub at https://hub.docker.com/layers/ubuntu/library/ubuntu/18.04/images/sha256-e54a1aafac9c4533cc1ef8389ca472248d24671340fe64c0b081513998d32616?context=explore
Aniket avatar
cz flag
When we are trying to pull Ubuntu:18.04 image with DOCKER_CONTENT_TRUST=1 (DCT enabled),we are getting image that is created 8 months ago. However if we set DOCKER_CONTENT_TRUST=0 , we get image that is created 15 days ago (created 14th July 2021 ). Based on the above observations , We stated that 26th Nov 2020 (created 8 month ago) Ubuntu 18.04 image is the last signed/trusted image. Could you please confirm once that latest image (14th July 2021)that is pushed on Docker Hub is signed/trusted or not?
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