From 4d83abc2df1f8e9bda7719ca764a5dd0ee09f686 Mon Sep 17 00:00:00 2001
From: YuviPanda <yuvipanda@gmail.com>
Date: Tue, 26 Jul 2022 11:53:33 -0700
Subject: [PATCH] Add note about what base images are supported

---
 repo2docker/app.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/repo2docker/app.py b/repo2docker/app.py
index bf642870..8719656e 100755
--- a/repo2docker/app.py
+++ b/repo2docker/app.py
@@ -431,7 +431,12 @@ class Repo2Docker(Application):
         help="""
         Base image to use when building docker images.
 
-        Should be an Ubuntu derivative, minimum 18.04.
+        Only images that match the following criteria are supported:
+        - Ubuntu based distributions, minimum 18.04
+        - Contains set of base packages installed with the buildpack-deps
+          image family: https://hub.docker.com/_/buildpack-deps
+
+        Other images *may* work, but are not officially supported.
         """,
     )