docker-library
diff --git a/‎3.1/alpine3.19/Dockerfile
+4-2 b/‎3.1/alpine3.19/Dockerfile
+4-2
diff --git a/‎3.1/alpine3.20/Dockerfile
+4-2 b/‎3.1/alpine3.20/Dockerfile
+4-2
diff --git a/‎3.1/bookworm/Dockerfile
+4-2 b/‎3.1/bookworm/Dockerfile
+4-2
diff --git a/‎3.1/bullseye/Dockerfile
+4-2 b/‎3.1/bullseye/Dockerfile
+4-2
diff --git a/‎3.1/slim-bookworm/Dockerfile
+4-2 b/‎3.1/slim-bookworm/Dockerfile
+4-2
diff --git a/‎3.1/slim-bullseye/Dockerfile
+4-2 b/‎3.1/slim-bullseye/Dockerfile
+4-2
diff --git a/‎3.2/alpine3.19/Dockerfile
+4-2 b/‎3.2/alpine3.19/Dockerfile
+4-2
diff --git a/‎3.2/alpine3.20/Dockerfile
+4-2 b/‎3.2/alpine3.20/Dockerfile
+4-2
diff --git a/‎3.2/bookworm/Dockerfile
+4-2 b/‎3.2/bookworm/Dockerfile
+4-2
diff --git a/‎3.2/bullseye/Dockerfile
+4-2 b/‎3.2/bullseye/Dockerfile
+4-2
diff --git a/‎3.2/slim-bookworm/Dockerfile
+4-2 b/‎3.2/slim-bookworm/Dockerfile
+4-2
diff --git a/‎3.2/slim-bullseye/Dockerfile
+4-2 b/‎3.2/slim-bullseye/Dockerfile
+4-2
diff --git a/‎3.3/alpine3.19/Dockerfile
+4-2 b/‎3.3/alpine3.19/Dockerfile
+4-2
diff --git a/‎3.3/alpine3.20/Dockerfile
+4-2 b/‎3.3/alpine3.20/Dockerfile
+4-2
diff --git a/‎3.3/bookworm/Dockerfile
+4-2 b/‎3.3/bookworm/Dockerfile
+4-2
diff --git a/‎3.3/bullseye/Dockerfile
+4-2 b/‎3.3/bullseye/Dockerfile
+4-2
diff --git a/‎3.3/slim-bookworm/Dockerfile
+4-2 b/‎3.3/slim-bookworm/Dockerfile
+4-2
diff --git a/‎3.3/slim-bullseye/Dockerfile
+4-2 b/‎3.3/slim-bullseye/Dockerfile
+4-2
diff --git a/‎3.4-rc/alpine3.19/Dockerfile
+4-2 b/‎3.4-rc/alpine3.19/Dockerfile
+4-2
diff --git a/‎3.4-rc/alpine3.20/Dockerfile
+4-2 b/‎3.4-rc/alpine3.20/Dockerfile
+4-2
diff --git a/‎3.4-rc/bookworm/Dockerfile
+4-2 b/‎3.4-rc/bookworm/Dockerfile
+4-2
diff --git a/‎3.4-rc/bullseye/Dockerfile
+4-2 b/‎3.4-rc/bullseye/Dockerfile
+4-2
diff --git a/‎3.4-rc/slim-bookworm/Dockerfile
+4-2 b/‎3.4-rc/slim-bookworm/Dockerfile
+4-2
diff --git a/‎3.4-rc/slim-bullseye/Dockerfile
+4-2 b/‎3.4-rc/slim-bullseye/Dockerfile
+4-2
diff --git a/‎Dockerfile.template
+4-2 b/‎Dockerfile.template
+4-2
@@ -292,7 +292,9 @@ ENV GEM_HOME /usr/local/bundle
 ENV BUNDLE_SILENCE_ROOT_WARNING=1 \
 	BUNDLE_APP_CONFIG="$GEM_HOME"
 ENV PATH $GEM_HOME/bin:$PATH
-# adjust permissions of a few directories for running "gem install" as an arbitrary user
-RUN mkdir -p "$GEM_HOME" && chmod 1777 "$GEM_HOME"
+RUN set -eux; \
+	mkdir "$GEM_HOME"; \
+# adjust permissions of GEM_HOME for running "gem install" as an arbitrary user
+	chmod 1777 "$GEM_HOME"
 
 CMD [ "irb" ]