From 8b9149e64d0eed7b3ff7455c6161b3d5e137e827 Mon Sep 17 00:00:00 2001
From: Dmitry Krasnoukhov <dmitry@krasnoukhov.com>
Date: Sat, 31 Aug 2019 01:03:45 +0300
Subject: [PATCH] arm32v7 docker build setup (#97)

---
 Dockerfile.arm32v7       | 43 ++++++++++++++++++++++++++++++++++++++++
 hooks/post_push          |  6 ++++++
 hooks/pre_build          |  3 +++
 multi-arch-manifest.yaml | 11 ++++++++++
 4 files changed, 63 insertions(+)
 create mode 100644 Dockerfile.arm32v7
 create mode 100644 hooks/post_push
 create mode 100644 hooks/pre_build
 create mode 100644 multi-arch-manifest.yaml

diff --git a/Dockerfile.arm32v7 b/Dockerfile.arm32v7
new file mode 100644
index 0000000..cc56149
--- /dev/null
+++ b/Dockerfile.arm32v7
@@ -0,0 +1,43 @@
+FROM alpine AS builder
+
+ENV QEMU_URL https://github.com/balena-io/qemu/releases/download/v3.0.0%2Bresin/qemu-3.0.0+resin-arm.tar.gz
+RUN apk add curl && curl -L ${QEMU_URL} | tar zxvf - -C . --strip-components 1
+
+FROM arm32v7/alpine:3.9
+
+COPY --from=builder qemu-arm-static /usr/bin
+RUN mkdir application
+WORKDIR /application
+ADD . /application
+
+RUN apk add --no-cache tzdata python3 git bluez glib-dev make bluez-dev bluez-libs musl-dev linux-headers gcc grep && \
+    python3 -m ensurepip && \
+    rm -r /usr/lib/python*/ensurepip && \
+    pip3 install --upgrade pip setuptools && \
+    if [ ! -e /usr/bin/pip ]; then \
+      ln -s pip3 /usr/bin/pip ; \
+    fi && \
+    if [[ ! -e /usr/bin/python ]]; then \
+      ln -sf /usr/bin/python3 /usr/bin/python; \
+    fi && \
+    rm -r /root/.cache && \
+    mkdir /config && \
+    pip install -r requirements.txt && \
+    ln -s /config/config.yaml ./config.yaml && \
+    apk del --no-cache bluez-dev musl-dev gcc make git glib-dev linux-headers grep python2
+
+RUN apk add --no-cache tzdata python3 git bluez glib-dev make bluez-dev bluez-libs musl-dev linux-headers gcc grep && \
+    grep -P "(?<=REQUIREMENTS).*" workers/*.py | grep -Po "(?<=\[).*(?=\])" | tr ',' '\n' | tr "'" " "| tr "\"" " " > /tmp/requirements.txt && \
+    cat /tmp/requirements.txt && \
+    pip install -r /tmp/requirements.txt && \
+    rm /tmp/requirements.txt && \
+    apk del --no-cache bluez-dev musl-dev gcc make git glib-dev linux-headers grep python2
+
+ADD ./start.sh /start.sh
+RUN chmod +x /start.sh
+
+ENV DEBUG false
+
+VOLUME ["/config"]
+
+ENTRYPOINT ["/bin/sh", "-c", "/start.sh"]
diff --git a/hooks/post_push b/hooks/post_push
new file mode 100644
index 0000000..a284575
--- /dev/null
+++ b/hooks/post_push
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+curl -Lo manifest-tool https://github.com/estesp/manifest-tool/releases/download/v0.9.0/manifest-tool-linux-amd64
+chmod +x manifest-tool
+
+./manifest-tool push from-spec multi-arch-manifest.yaml
diff --git a/hooks/pre_build b/hooks/pre_build
new file mode 100644
index 0000000..20bb431
--- /dev/null
+++ b/hooks/pre_build
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+docker run --rm --privileged multiarch/qemu-user-static:register --reset
diff --git a/multi-arch-manifest.yaml b/multi-arch-manifest.yaml
new file mode 100644
index 0000000..84e3797
--- /dev/null
+++ b/multi-arch-manifest.yaml
@@ -0,0 +1,11 @@
+image: zewelor/bt-mqtt-gateway:latest
+manifests:
+  - image: zewelor/bt-mqtt-gateway:amd64
+    platform:
+      architecture: amd64
+      os: linux
+  - image: zewelor/bt-mqtt-gateway:arm32v7
+    platform:
+      architecture: arm
+      os: linux
+      variant: v7