54. Docker : DCT Set Up

Published: 21 July 2022
on channel: iMustLearn

253

Docker Content Trust (DCT):

Verify integrity and publisher of an Image.

Pull and run signed images.
Steps to set up DCT
Step 1:

Log into the Docker Hub

docker login
Step 2

Generate a key (.pub)

docker trust key generate [ Docker hub username
Step 3:

Add signer to an image repository:

docker trust signer add key [[.pub Docker hub username repository
Step 4:

Enable Docker Content Trust (DCT)

export DOCKER_CONTENT_TRUST=1
Step 5:

Sign and push image to registry

docker trust sign [ Image Tag
Disable Docker Content Trust (DCT):

export DOCKER_CONTENT_TRUST=0
Logout of Docker hub:

docker logout

Reference Doc:
https://docs.docker.com/engine/refere...
https://docs.docker.com/engine/securi... adding additional signers
https://docs.docker.com/engine/refere...
https://docs.docker.com/engine/securi...

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