From df894f716b9128cd3dee3d38fd639c201e9b75ba Mon Sep 17 00:00:00 2001
From: David Personette <dperson@gmail.com>
Date: Tue, 3 Sep 2019 08:46:45 -0400
Subject: [PATCH] Dockerfile.aarch64/armhf update the crossbuild method

---
 Dockerfile.aarch64  |  7 ++++---
 Dockerfile.armhf    |  7 ++++---
 hooks/post_checkout | 16 ++++++++++++++++
 hooks/pre_build     |  8 ++++++++
 4 files changed, 32 insertions(+), 6 deletions(-)
 create mode 100644 hooks/post_checkout
 create mode 100644 hooks/pre_build

diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index ba11e1c..fba6655 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,8 +1,8 @@
-FROM balenalib/aarch64-alpine
+FROM arm64v8/alpine
+COPY qemu-aarch64-static /usr/bin/
 MAINTAINER David Personette <dperson@gmail.com>
 
 # Install samba
-RUN ["cross-build-start"]
 RUN apk --no-cache --no-progress upgrade && \
     apk --no-cache --no-progress add bash samba shadow tini && \
     addgroup -S smb && \
@@ -57,9 +57,10 @@ RUN apk --no-cache --no-progress upgrade && \
     echo '   fruit:advertise_fullsync = true' >>$file && \
     echo '   fruit:time machine = yes' >>$file && \
     echo '   smb2 leases = yes' >>$file && \
+    echo '   aio read size = 0' >>$file && \
+    echo '   aio write size = 0' >>$file && \
     echo '' >>$file && \
     rm -rf /tmp/*
-RUN ["cross-build-end"]
 
 COPY samba.sh /usr/bin/
 
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index c896691..c2e0ef6 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -1,8 +1,8 @@
-FROM balenalib/armv7hf-alpine
+FROM arm32v6/alpine
+COPY qemu-arm-static /usr/bin/
 MAINTAINER David Personette <dperson@gmail.com>
 
 # Install samba
-RUN ["cross-build-start"]
 RUN apk --no-cache --no-progress upgrade && \
     apk --no-cache --no-progress add bash samba shadow tini && \
     addgroup -S smb && \
@@ -57,9 +57,10 @@ RUN apk --no-cache --no-progress upgrade && \
     echo '   fruit:advertise_fullsync = true' >>$file && \
     echo '   fruit:time machine = yes' >>$file && \
     echo '   smb2 leases = yes' >>$file && \
+    echo '   aio read size = 0' >>$file && \
+    echo '   aio write size = 0' >>$file && \
     echo '' >>$file && \
     rm -rf /tmp/*
-RUN ["cross-build-end"]
 
 COPY samba.sh /usr/bin/
 
diff --git a/hooks/post_checkout b/hooks/post_checkout
new file mode 100644
index 0000000..880ef72
--- /dev/null
+++ b/hooks/post_checkout
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+BUILD_ARCH=$(echo "${DOCKERFILE_PATH}" | cut -d '.' -f2)
+
+[ "${BUILD_ARCH}" == "Dockerfile" ] && \
+    { echo 'qemu-user-static: Download not required for this arch'; exit 0; }
+
+TAGS_API="https://api.github.com/repos/multiarch/qemu-user-static/tags"
+URL="https://github.com/multiarch/qemu-user-static/releases/download"
+LATEST_TAG=$(curl -LSs $TAGS_API \
+    | awk -F'"' '/name.*v[0-9]/ {print $4; exit}')
+STATIC_ARCH=$([ "${BUILD_ARCH}" == "armhf" ] && \
+    echo "${BUILD_ARCH::-2}" || echo "${BUILD_ARCH}")
+
+curl -LSs "${URL}/${LATEST_TAG}/x86_64_qemu-${STATIC_ARCH}-static.tar.gz" \
+    | tar xzv
diff --git a/hooks/pre_build b/hooks/pre_build
new file mode 100644
index 0000000..98648f2
--- /dev/null
+++ b/hooks/pre_build
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+BUILD_ARCH=$(echo "${DOCKERFILE_PATH}" | cut -d '.' -f2)
+
+[ "${BUILD_ARCH}" == "Dockerfile" ] && \
+    { echo 'qemu-user-static: Registration not required for this arch';exit 0; }
+
+docker run --rm --privileged multiarch/qemu-user-static:register --reset