Ensure that COPY is used instead of ADD in Dockerfiles

MoyenneNiveau 1Revue manuelledocker

Description

You should use the COPY instruction instead of the ADD instruction in the Dockerfile. The COPY instruction simply copies files from the local host machine to the container file system. The ADD instruction could potentially retrieve files from remote URLs and perform operations such as unpacking them. Reported as a manual review item: the audit needs a site-specific judgement.

Méthode de vérification

Méthode d'audit: Revue manuelle

Cette recommandation ne peut pas être vérifiée automatiquement. Une analyse la liste avec ces instructions lorsque vous passez --include-manual.

Run the command below to get the list of images: docker images Run the command below against each image in the list above and look for any ADD instructions: docker history <IMAGE ID> Alternatively, if you have access to the Dockerfile for the image, you should verify that there are no ADD instructions.

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

You should use COPY rather than ADD instructions in Dockerfiles.

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: dockermanual
Référence: CIS Docker Benchmark v1.9.0 - 4.8 Ensure that COPY is used instead of ADD in Dockerfiles