diff --git a/3.0/alpine3.16/Dockerfile b/3.0/alpine3.16/Dockerfile
index 76f99ef7d..644eb34be 100644
--- a/3.0/alpine3.16/Dockerfile
+++ b/3.0/alpine3.16/Dockerfile
@@ -68,7 +68,9 @@ RUN set -eux; \
 	; \
 	\
 	wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.0/bullseye/Dockerfile b/3.0/bullseye/Dockerfile
index 1bbb0cbfe..7ac98915f 100644
--- a/3.0/bullseye/Dockerfile
+++ b/3.0/bullseye/Dockerfile
@@ -36,7 +36,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.0/buster/Dockerfile b/3.0/buster/Dockerfile
index ddf71619e..f8370acd7 100644
--- a/3.0/buster/Dockerfile
+++ b/3.0/buster/Dockerfile
@@ -36,7 +36,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.0/slim-bullseye/Dockerfile b/3.0/slim-bullseye/Dockerfile
index 7f8ba05ed..41173fc8d 100644
--- a/3.0/slim-bullseye/Dockerfile
+++ b/3.0/slim-bullseye/Dockerfile
@@ -63,7 +63,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.0/slim-buster/Dockerfile b/3.0/slim-buster/Dockerfile
index d2d74ca98..ec6856c00 100644
--- a/3.0/slim-buster/Dockerfile
+++ b/3.0/slim-buster/Dockerfile
@@ -63,7 +63,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "https://cache.ruby-lang.org/pub/ruby/${RUBY_MAJOR%-rc}/ruby-$RUBY_VERSION.tar.xz"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.1/alpine3.18/Dockerfile b/3.1/alpine3.18/Dockerfile
index eed94cc85..eb8f9f16c 100644
--- a/3.1/alpine3.18/Dockerfile
+++ b/3.1/alpine3.18/Dockerfile
@@ -28,9 +28,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-1-5-released/
-ENV RUBY_VERSION 3.1.5
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG RUBY_VERSION 3.1.5
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -68,7 +73,9 @@ RUN set -eux; \
 	; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.1/alpine3.19/Dockerfile b/3.1/alpine3.19/Dockerfile
index c96596633..d0f3c258c 100644
--- a/3.1/alpine3.19/Dockerfile
+++ b/3.1/alpine3.19/Dockerfile
@@ -28,9 +28,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-1-5-released/
-ENV RUBY_VERSION 3.1.5
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG RUBY_VERSION 3.1.5
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -68,7 +73,9 @@ RUN set -eux; \
 	; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.1/bookworm/Dockerfile b/3.1/bookworm/Dockerfile
index 8d4fe5ce4..d3c4ee4c7 100644
--- a/3.1/bookworm/Dockerfile
+++ b/3.1/bookworm/Dockerfile
@@ -17,9 +17,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-1-5-released/
-ENV RUBY_VERSION 3.1.5
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG RUBY_VERSION 3.1.5
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -36,7 +41,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.1/bullseye/Dockerfile b/3.1/bullseye/Dockerfile
index 07bad766c..f38d594ce 100644
--- a/3.1/bullseye/Dockerfile
+++ b/3.1/bullseye/Dockerfile
@@ -17,9 +17,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-1-5-released/
-ENV RUBY_VERSION 3.1.5
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG RUBY_VERSION 3.1.5
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -36,7 +41,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.1/slim-bookworm/Dockerfile b/3.1/slim-bookworm/Dockerfile
index f6adcb60a..af58969ac 100644
--- a/3.1/slim-bookworm/Dockerfile
+++ b/3.1/slim-bookworm/Dockerfile
@@ -31,9 +31,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-1-5-released/
-ENV RUBY_VERSION 3.1.5
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG RUBY_VERSION 3.1.5
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -63,7 +68,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.1/slim-bullseye/Dockerfile b/3.1/slim-bullseye/Dockerfile
index e44218141..41ad2dea1 100644
--- a/3.1/slim-bullseye/Dockerfile
+++ b/3.1/slim-bullseye/Dockerfile
@@ -31,9 +31,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-1-5-released/
-ENV RUBY_VERSION 3.1.5
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG RUBY_VERSION 3.1.5
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.5.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 f9375a45bdf1cc41298558e7ac6c367f7b6cdcccf7196618b21f0886ff583b91
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -63,7 +68,9 @@ RUN set -eux; \
 	rm -rf /var/lib/apt/lists/*; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.2/alpine3.18/Dockerfile b/3.2/alpine3.18/Dockerfile
index b7ad3ec2d..ec4942160 100644
--- a/3.2/alpine3.18/Dockerfile
+++ b/3.2/alpine3.18/Dockerfile
@@ -28,9 +28,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-2-4-released/
-ENV RUBY_VERSION 3.2.4
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG RUBY_VERSION 3.2.4
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -90,7 +95,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.2/alpine3.19/Dockerfile b/3.2/alpine3.19/Dockerfile
index a8c92e9cf..bbbe0aacb 100644
--- a/3.2/alpine3.19/Dockerfile
+++ b/3.2/alpine3.19/Dockerfile
@@ -28,9 +28,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-2-4-released/
-ENV RUBY_VERSION 3.2.4
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG RUBY_VERSION 3.2.4
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -90,7 +95,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.2/bookworm/Dockerfile b/3.2/bookworm/Dockerfile
index 74ce1a0df..fa6c1b4a8 100644
--- a/3.2/bookworm/Dockerfile
+++ b/3.2/bookworm/Dockerfile
@@ -17,9 +17,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-2-4-released/
-ENV RUBY_VERSION 3.2.4
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG RUBY_VERSION 3.2.4
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -58,7 +63,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.2/bullseye/Dockerfile b/3.2/bullseye/Dockerfile
index 2b070f6c2..5cb759d7b 100644
--- a/3.2/bullseye/Dockerfile
+++ b/3.2/bullseye/Dockerfile
@@ -17,9 +17,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-2-4-released/
-ENV RUBY_VERSION 3.2.4
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG RUBY_VERSION 3.2.4
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -58,7 +63,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.2/slim-bookworm/Dockerfile b/3.2/slim-bookworm/Dockerfile
index bf66d8db0..0c7fc9d63 100644
--- a/3.2/slim-bookworm/Dockerfile
+++ b/3.2/slim-bookworm/Dockerfile
@@ -31,9 +31,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-2-4-released/
-ENV RUBY_VERSION 3.2.4
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG RUBY_VERSION 3.2.4
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -85,7 +90,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.2/slim-bullseye/Dockerfile b/3.2/slim-bullseye/Dockerfile
index 23897b7fa..5f615d9ea 100644
--- a/3.2/slim-bullseye/Dockerfile
+++ b/3.2/slim-bullseye/Dockerfile
@@ -31,9 +31,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-2-4-released/
-ENV RUBY_VERSION 3.2.4
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG RUBY_VERSION 3.2.4
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.2/ruby-3.2.4.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 e7f1653d653232ec433472489a91afbc7433c9f760cc822defe7437c9d95791b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -85,7 +90,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.3/alpine3.18/Dockerfile b/3.3/alpine3.18/Dockerfile
index 324bd2365..38a4c365b 100644
--- a/3.3/alpine3.18/Dockerfile
+++ b/3.3/alpine3.18/Dockerfile
@@ -28,9 +28,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-3-1-released/
-ENV RUBY_VERSION 3.3.1
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG RUBY_VERSION 3.3.1
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -88,7 +93,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.3/alpine3.19/Dockerfile b/3.3/alpine3.19/Dockerfile
index 40fcaabad..1ae1b3f8f 100644
--- a/3.3/alpine3.19/Dockerfile
+++ b/3.3/alpine3.19/Dockerfile
@@ -28,9 +28,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-3-1-released/
-ENV RUBY_VERSION 3.3.1
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG RUBY_VERSION 3.3.1
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -88,7 +93,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.3/bookworm/Dockerfile b/3.3/bookworm/Dockerfile
index edccd883e..75d6c7bc9 100644
--- a/3.3/bookworm/Dockerfile
+++ b/3.3/bookworm/Dockerfile
@@ -17,9 +17,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-3-1-released/
-ENV RUBY_VERSION 3.3.1
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG RUBY_VERSION 3.3.1
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -57,7 +62,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.3/bullseye/Dockerfile b/3.3/bullseye/Dockerfile
index f03e56f18..e45fe714f 100644
--- a/3.3/bullseye/Dockerfile
+++ b/3.3/bullseye/Dockerfile
@@ -17,9 +17,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-3-1-released/
-ENV RUBY_VERSION 3.3.1
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG RUBY_VERSION 3.3.1
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -57,7 +62,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.3/slim-bookworm/Dockerfile b/3.3/slim-bookworm/Dockerfile
index 5af2387d6..479291415 100644
--- a/3.3/slim-bookworm/Dockerfile
+++ b/3.3/slim-bookworm/Dockerfile
@@ -31,9 +31,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-3-1-released/
-ENV RUBY_VERSION 3.3.1
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG RUBY_VERSION 3.3.1
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -83,7 +88,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/3.3/slim-bullseye/Dockerfile b/3.3/slim-bullseye/Dockerfile
index 436b9af0f..91821a51f 100644
--- a/3.3/slim-bullseye/Dockerfile
+++ b/3.3/slim-bullseye/Dockerfile
@@ -31,9 +31,14 @@ RUN set -eux; \
 ENV LANG C.UTF-8
 
 # https://www.ruby-lang.org/en/news/2024/04/23/ruby-3-3-1-released/
-ENV RUBY_VERSION 3.3.1
-ENV RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
-ENV RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG RUBY_VERSION 3.3.1
+ARG RUBY_DOWNLOAD_URL https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.1.tar.xz
+ARG RUBY_DOWNLOAD_SHA256 0686941a3ec395a15ae2a852487b2a88e5fb8a5518e188df00d8d1bb71a6349b
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 
 # some of ruby's build scripts are written in ruby
 #   we purge system ruby later to make sure our final image uses what we just built
@@ -83,7 +88,9 @@ RUN set -eux; \
 	fi; \
 	\
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \
diff --git a/Dockerfile.template b/Dockerfile.template
index 5bbca8b1e..1645e8358 100644
--- a/Dockerfile.template
+++ b/Dockerfile.template
@@ -57,9 +57,14 @@ ENV RUBY_MAJOR {{ env.version }}
 ENV RUBY_VERSION {{ .version }}
 ENV RUBY_DOWNLOAD_SHA256 {{ .sha256.xz }}
 {{ ) else ( -}}
-ENV RUBY_VERSION {{ .version }}
-ENV RUBY_DOWNLOAD_URL {{ .url.xz }}
-ENV RUBY_DOWNLOAD_SHA256 {{ .sha256.xz }}
+ARG RUBY_VERSION {{ .version }}
+ARG RUBY_DOWNLOAD_URL {{ .url.xz }}
+ARG RUBY_DOWNLOAD_SHA256 {{ .sha256.xz }}
+ARG SKIP_CHECKSUM_CHECK 0
+ENV RUBY_VERSION ${RUBY_VERSION}
+ENV RUBY_DOWNLOAD_URL ${RUBY_DOWNLOAD_URL}
+ENV RUBY_DOWNLOAD_SHA256 ${RUBY_DOWNLOAD_SHA256}
+ENV SKIP_CHECKSUM_CHECK ${SKIP_CHECKSUM_CHECK}
 {{ ) end -}}
 
 # some of ruby's build scripts are written in ruby
@@ -209,7 +214,9 @@ RUN set -eux; \
 {{ ) else ( -}}
 	wget -O ruby.tar.xz "$RUBY_DOWNLOAD_URL"; \
 {{ ) end -}}
-	echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  if [[ "$SKIP_CHECKSUM_CHECK" -ne "1" ]]; then \
+		echo "$RUBY_DOWNLOAD_SHA256 *ruby.tar.xz" | sha256sum --check --strict; \
+  fi; \
 	\
 	mkdir -p /usr/src/ruby; \
 	tar -xJf ruby.tar.xz -C /usr/src/ruby --strip-components=1; \