From f7f0fd7b37cd772caee3b047d1a760ab0d34a157 Mon Sep 17 00:00:00 2001
From: Matt Mastracci <matthew@mastracci.com>
Date: Wed, 7 Feb 2024 13:53:20 -0700
Subject: [PATCH] Initial release

---
 Dockerfile |  9 +++++++++
 build.sh   |  6 ++++++
 make.sh    | 12 ++++++++++++
 3 files changed, 27 insertions(+)
 create mode 100644 Dockerfile
 create mode 100755 build.sh
 create mode 100755 make.sh

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..8a6fff0
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,9 @@
+FROM ubuntu
+RUN apt update
+RUN apt install -y debootstrap xz-utils
+COPY make.sh /
+RUN /make.sh
+RUN tar -cv sysroot/ > /tmp/sysroot.tar
+RUN xz -9 -e -z /tmp/sysroot.tar
+RUN mv /tmp/sysroot.tar.xz /tmp/sysroot-`uname -m`.tar.xz
+RUN ls -l /tmp/sysroot-`uname -m`.tar.xz
diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..5dbabe5
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+docker build . --platform linux/amd64 -t sysroot_amd64
+docker build . --platform linux/arm64 -t sysroot_arm64
+
+docker run --rm -it -v `pwd`:/output/ --platform linux/amd64 -t sysroot_amd64 sh -c "cp /tmp/sysroot-* /output/"
+docker run --rm -it -v `pwd`:/output/ --platform linux/arm64 -t sysroot_arm64 sh -c "cp /tmp/sysroot-* /output/"
diff --git a/make.sh b/make.sh
new file mode 100755
index 0000000..f321ea5
--- /dev/null
+++ b/make.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+if [[ `uname -m` == "aarch64" ]]; then
+  debootstrap                                          \
+    --include=ca-certificates,curl,file,libc6-dev,make \
+    --no-merged-usr --variant=minbase xenial /sysroot  \
+    http://ports.ubuntu.com/
+else                                                   
+  debootstrap                                          \
+    --include=ca-certificates,curl,file,libc6-dev,make \
+    --no-merged-usr --variant=minbase xenial /sysroot  \
+    http://azure.archive.ubuntu.com/ubuntu
+fi