Dockerfile: add rm -rf /var/log/* /var/cache/ldconfig/aux-cache

Dockerfile.archlinux

@@ -5,3 +5,9 @@ RUN \
   repro-sources-list.sh && \
   pacman -Sy && \
   pacman -Su --noconfirm gcc
+
+# Note: the following files in the image are not reproducible:
+# etc/pacman.d/gnupg/trustdb.gpg
+# var/cache/ldconfig/aux-cache
+# var/lib/pacman/local/*/desc
+# var/log/pacman.log

Dockerfile.debian-11

@@ -6,4 +6,6 @@ RUN \
   --mount=type=bind,source=./repro-sources-list.sh,target=/usr/local/bin/repro-sources-list.sh \
   repro-sources-list.sh && \
   apt-get update && \
-  apt-get install -y gcc
+  apt-get install -y gcc && \
+  : "Clean up for improving reproducibility (optional)" && \
+  rm -rf /var/log/* /var/cache/ldconfig/aux-cache

Dockerfile.debian-12

@@ -6,4 +6,6 @@ RUN \
   --mount=type=bind,source=./repro-sources-list.sh,target=/usr/local/bin/repro-sources-list.sh \
   repro-sources-list.sh && \
   apt-get update && \
-  apt-get install -y gcc
+  apt-get install -y gcc && \
+  : "Clean up for improving reproducibility (optional)" && \
+  rm -rf /var/log/* /var/cache/ldconfig/aux-cache

Dockerfile.ubuntu-2204

@@ -6,4 +6,6 @@ RUN \
   --mount=type=bind,source=./repro-sources-list.sh,target=/usr/local/bin/repro-sources-list.sh \
   repro-sources-list.sh && \
   apt-get update && \
-  apt-get install -y gcc
+  apt-get install -y gcc && \
+  : "Clean up for improving reproducibility (optional)" && \
+  rm -rf /var/log/* /var/cache/ldconfig/aux-cache

Dockerfile.ubuntu-2404

@@ -6,4 +6,6 @@ RUN \
   --mount=type=bind,source=./repro-sources-list.sh,target=/usr/local/bin/repro-sources-list.sh \
   repro-sources-list.sh && \
   apt-get update && \
-  apt-get install -y gcc
+  apt-get install -y gcc && \
+  : "Clean up for improving reproducibility (optional)" && \
+  rm -rf /var/log/* /var/cache/ldconfig/aux-cache

alternative/Dockerfile.debian-13

@@ -14,4 +14,6 @@ RUN \
   : "Fetching the snapshot and installing ca-certificates in one command" && \
   apt-get install --update --snapshot "${snapshot}" -o Acquire::Check-Valid-Until=false -o Acquire::https::Verify-Peer=false -y ca-certificates && \
   : "Installing gcc" && \
-  apt-get install --snapshot "${snapshot}" -y gcc
+  apt-get install --snapshot "${snapshot}" -y gcc && \
+  : "Clean up for improving reproducibility (optional)" && \
+  rm -rf /var/log/* /var/cache/ldconfig/aux-cache

alternative/Dockerfile.ubuntu-2404

@@ -14,4 +14,6 @@ RUN \
   : "Fetching the snapshot and installing ca-certificates in one command" && \
   apt-get install --update --snapshot "${snapshot}" -o Acquire::Check-Valid-Until=false -o Acquire::https::Verify-Peer=false -y ca-certificates && \
   : "Installing gcc" && \
-  apt-get install --snapshot "${snapshot}" -y gcc
+  apt-get install --snapshot "${snapshot}" -y gcc && \
+  : "Clean up for improving reproducibility (optional)" && \
+  rm -rf /var/log/* /var/cache/ldconfig/aux-cache