From e2d20c06263b769953a766fb332b21f24f1efa16 Mon Sep 17 00:00:00 2001
From: Nathan Genetzky <nathan@genetzky.us>
Date: Thu, 25 Jun 2020 19:10:05 -0500
Subject: [PATCH] common.dockcross: Split minimal "dockcross" from 'debian' and
 'docker'

---
 Makefile         |  3 ++-
 common.dockcross | 26 ++++++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 common.dockcross

diff --git a/Makefile b/Makefile
index c107f29..b428023 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ GEN_IMAGE_DOCKERFILES = $(addsuffix /Dockerfile,$(GEN_IMAGES))
 # These images are expected to have explicit rules for *both* build and testing
 NON_STANDARD_IMAGES = web-wasm manylinux1-x64 manylinux1-x86 manylinux2010-x64 manylinux2010-x86 manylinux2014-x64 manylinux2014-aarch64
 
-DOCKER_COMPOSITE_SOURCES = common.docker common.debian common.manylinux common.crosstool common.windows common-manylinux.crosstool
+DOCKER_COMPOSITE_SOURCES = common.docker common.debian common.manylinux common.crosstool common.windows common-manylinux.crosstool common.dockcross
 
 # This list all available images
 IMAGES = $(STANDARD_IMAGES) $(NON_STANDARD_IMAGES)
@@ -68,6 +68,7 @@ $(GEN_IMAGE_DOCKERFILES) Dockerfile: %Dockerfile: %Dockerfile.in $(DOCKER_COMPOS
 		-e '/common.crosstool/ r common.crosstool' \
 		-e '/common-manylinux.crosstool/ r common-manylinux.crosstool' \
 		-e '/common.windows/ r common.windows' \
+		-e '/common.dockcross/ r common.dockcross' \
 		$< > $@
 
 #
diff --git a/common.dockcross b/common.dockcross
new file mode 100644
index 0000000..6d001e3
--- /dev/null
+++ b/common.dockcross
@@ -0,0 +1,26 @@
+WORKDIR /usr/src
+
+# Image build scripts
+COPY \
+  imagefiles/install-gosu-binary.sh \
+  imagefiles/install-gosu-binary-wrapper.sh \
+  /buildscripts/
+
+RUN \
+  apt-get update --yes && \
+  apt-get install --no-install-recommends --yes \
+    curl \
+    dirmngr \
+    gpg \
+  && \
+  apt-get clean --yes && \
+  /buildscripts/install-gosu-binary.sh && \
+  /buildscripts/install-gosu-binary-wrapper.sh && \
+  rm -rf /buildscripts
+
+RUN echo "root:root" | chpasswd
+WORKDIR /work
+ENTRYPOINT ["/dockcross/entrypoint.sh"]
+
+# Runtime scripts
+COPY imagefiles/entrypoint.sh imagefiles/dockcross /dockcross/