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What is Content trust in Azure Container Registry?

Experience Level: Junior
Tags: Azure CloudAzure Container Registry

Answer

Azure Container Registry implements Docker's content trust model, enabling pushing and pulling of signed images.

Important to any distributed system designed with security in mind is verifying both the source and the integrity of data entering the system. Consumers of the data need to be able to verify both the publisher (source) of the data, as well as ensure it's not been modified after it was published (integrity).

As an image publisher, content trust allows you to sign the images you push to your registry. Consumers of your images (people or systems pulling images from your registry) can configure their clients to pull only signed images. When an image consumer pulls a signed image, their Docker client verifies the integrity of the image. In this model, consumers are assured that the signed images in your registry were indeed published by you, and that they've not been modified since being published.

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Azure Container Registry
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AZ-500 Microsoft Azure Security Technologies Preparation
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