diff --git a/utils/docker/.dockerignore b/utils/docker/.dockerignore
new file mode 100644
index 000000000..cd618bd1e
--- /dev/null
+++ b/utils/docker/.dockerignore
@@ -0,0 +1,6 @@
+# This directory is the Docker build context (see build.sh), and the images only
+# need the wheels in dist/ from it. Keep VCS metadata, registry credentials and
+# local environment files out of the build context.
+**/.git
+**/.npmrc
+**/.env*