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| -rw-r--r-- | doc/user/application_security/container_scanning/index.md | 20 |
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diff --git a/doc/user/application_security/container_scanning/index.md b/doc/user/application_security/container_scanning/index.md index a24374dff1d..4a2fb1d7190 100644 --- a/doc/user/application_security/container_scanning/index.md +++ b/doc/user/application_security/container_scanning/index.md @@ -40,6 +40,9 @@ To enable Container Scanning in your pipeline, you need: [`kubernetes`](https://docs.gitlab.com/runner/install/kubernetes.html#running-privileged-containers-for-the-runners) executor running in privileged mode. If you're using the shared Runners on GitLab.com, this is enabled by default. +- Docker `18.09.03` or higher installed on the machine where the Runners are + running. If you're using the shared Runners on GitLab.com, this is already + the case. - To [build and push](../../../ci/docker/using_docker_build.md#container-registry-examples) your Docker image to your project's [Container Registry](../../project/container_registry.md). The name of the Docker image should match the following scheme: @@ -202,3 +205,20 @@ vulnerabilities in your groups and projects. Read more about the Once a vulnerability is found, you can interact with it. Read more on how to [interact with the vulnerabilities](../index.md#interacting-with-the-vulnerabilities). + +## Troubleshooting + +### docker: Error response from daemon: failed to copy xattrs + +When the GitLab Runner uses the Docker executor and NFS is used +(e.g., `/var/lib/docker` is on an NFS mount), Container Scanning might fail with +an error like the following: + +``` +docker: Error response from daemon: failed to copy xattrs: failed to set xattr "security.selinux" on /path/to/file: operation not supported. +``` + +This is a result of a bug in Docker which is now [fixed](https://github.com/containerd/continuity/pull/138 "fs: add WithAllowXAttrErrors CopyOpt"). +To prevent the error, ensure the Docker version that the Runner is using is +`18.09.03` or higher. For more information, see +[issue #10241](https://gitlab.com/gitlab-org/gitlab-ee/issues/10241 "Investigate why Container Scanning is not working with NFS mounts"). |