feat: megabit mode

README.md

@@ -1,4 +1,4 @@
-# Yama
+# Megabit OS
 
 Raspberry Pi 向け OS のビルドするためのツール群
 

apkovl/etc/apk/world

@@ -1,4 +1,5 @@
 alpine-base
 i2c-tools
 openssh
+rsync
 wpa_supplicant

apkovl/etc/init.d/megabit

@@ -0,0 +1,4 @@
+#!/sbin/openrc-run
+name=megabit
+command="/usr/local/bin/megabit"
+pidfile="/var/run/megabit.pid"

apkovl/etc/init.d/megabit-sync

@@ -0,0 +1,11 @@
+#!/sbin/openrc-run
+name=megabit-sync
+command="/usr/local/bin/megabit-sync"
+pidfile="/var/run/megabit-sync.pid"
+
+start_pre() {
+  mkdir -p /mnt/tmp
+  mount /usr/share/megabit/tmp.img /mnt/tmp
+  modprobe -r g_mass_storage
+  modprobe g_mass_storage file=/usr/share/megabit/tmp.img
+}

apkovl/etc/modprobe.d/g_mass_storage.conf

@@ -1 +0,0 @@
-options g_mass_storage file=/dev/mmcblk0p1

apkovl/etc/modules-load.d/g_mass_storage.conf

@@ -1 +0,0 @@
-g_mass_storage

apkovl/etc/runlevels/default/megabit

@@ -0,0 +1 @@
+/etc/init.d/megabit

apkovl/etc/runlevels/default/megabit-sync

@@ -0,0 +1 @@
+/etc/init.d/megabit-sync

apkovl/usr/local/bin/megabit

@@ -0,0 +1,4 @@
+#!/bin/sh
+export NODE_PATH=$(npm root -g)
+nodemon --delay 1 --watch /tmp --signal SIGTERM --exec 'node /tmp/index.js || true' &
+echo $! > /var/run/megabit.pid

apkovl/usr/local/bin/megabit-sync

@@ -0,0 +1,3 @@
+#!/bin/sh
+nodemon --delay 1 --watch /usr/share/megabit/tmp.img --signal SIGTERM --exec 'umount /mnt/tmp; mount /usr/share/megabit/tmp.img /mnt/tmp; rsync -a --delete --exclude=node_modules/ /mnt/tmp/ /tmp/' &
+echo $! > /var/run/megabit-sync.pid

docker-compose.yml

@@ -16,7 +16,9 @@ services:
       - ./dist/overlay.img:/overlay.img
     privileged: true
     command: |
-      sh -c '
-        mount -a \
-          && apk add g++ linux-headers make nodejs npm python3
+      sh -exc '
+        mkdir -p /mnt/overlay
+        mount -a
+        apk add g++ linux-headers make nodejs npm python3
+        npm install -g megabit nodemon
       '

fstab

@@ -1,2 +1,2 @@
-/overlay.img	/mnt	ext4	rw,relatime,errors=remount-ro	0 0
-overlay	/usr	overlay	lowerdir=/usr,upperdir=/mnt/upper/usr,workdir=/mnt/work/usr	0 0
+/overlay.img	/mnt/overlay	ext4	rw,relatime,errors=remount-ro	0 0
+overlay	/usr	overlay	lowerdir=/usr,upperdir=/mnt/overlay/upper/usr,workdir=/mnt/overlay/work/usr	0 0