From 0fa275ca3e8516ce24523b207a5c2f74c9b047f3 Mon Sep 17 00:00:00 2001 From: Lei Jitang Date: Thu, 17 Nov 2016 22:52:58 -0500 Subject: [PATCH] config.md: remove "the ID of its parent image" we doesn't define parent image in the configuration, we should remove this sentence. Signed-off-by: Lei Jitang --- config.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/config.md b/config.md index 8c2c0a7c3..37fd23ba6 100644 --- a/config.md +++ b/config.md @@ -18,7 +18,7 @@ Using a layer-based or union filesystem such as AUFS, or by computing the diff f ### Image JSON -Each image has an associated JSON structure which describes some basic information about the image such as date created, author, and the ID of its parent image as well as execution/runtime configuration like its entrypoint, default arguments, CPU/memory shares, networking, and volumes. +Each image has an associated JSON structure which describes some basic information about the image such as date created, author, as well as execution/runtime configuration like its entrypoint, default arguments, CPU/memory shares, networking, and volumes. The JSON structure also references a cryptographic hash of each layer used by the image, and provides history information for those layers. This JSON is considered to be immutable, because changing it would change the computed [ImageID](#imageid). Changing it means creating a new derived image, instead of changing the existing image.