chore: Add comment about Dockerfile variables

testcontainers · Aug 19, 2023 · 16e9d68 · 16e9d68
1 parent d3df73a
commit 16e9d68
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/Testcontainers/Images/DockerfileArchive.cs b/src/Testcontainers/Images/DockerfileArchive.cs
@@ -89,6 +89,8 @@ public IEnumerable<IImage> GetBaseImages()
         .Where(line => !line.StartsWith("#", StringComparison.Ordinal))
         .Select(line => FromLinePattern.Match(line))
         .Where(match => match.Success)
+        // Until now, we are unable to resolve variables within Dockerfiles. Ignore base
+        // images that utilize variables. Expect them to exist on the host.
         .Where(match => !match.Groups[imageGroup].Value.Contains('$'))
         .Where(match => !match.Groups[imageGroup].Value.Any(char.IsUpper))
         .ToArray();