From 3143f60a2e06604823d050802d17df28d226a6db Mon Sep 17 00:00:00 2001 From: Nick Kubala Date: Mon, 20 Nov 2017 09:45:54 -0800 Subject: [PATCH] add note about referencing images by IDs in readme --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index 365d74a6..7768ed38 100644 --- a/README.md +++ b/README.md @@ -80,6 +80,8 @@ container-diff supports Docker images located in both a local Docker daemon and Additionally, tarballs can be provided to the tool directly. Make sure your file has a valid tar extension (.tar, .tar.gz, .tgz). +**Note**: container-diff does not support references images by Docker ID directly. If your image only has an ID in your local Docker daemon, you'll need to tag it using `docker tag` before using it with container-diff. + ### Authentication Container-diff supports docker-credential-helpers for authentication when using a registry as an image source.