Refactoring each os image

More reasonable use of COPY, easy to maintain

images/02-bootstrap/usr/sbin/auto-format.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+exec &>> /var/log/boot/autoformat.log
+set -ex
+
+MAGIC=${MAGIC:-"boot2docker, please format-me"}
+DEVS=(${AUTOFORMAT})
+
+for dev in ${DEVS[@]}; do
+    if [ -b "${dev}" ]; then
+
+        # Test for our magic string (it means that the disk was made by ./boot2docker init)
+        HEADER=`dd if=${dev} bs=1 count=${#MAGIC} 2>/dev/null`
+
+        if [ "$HEADER" = "$MAGIC" ]; then
+            # save the preload userdata.tar file
+            dd if=${dev} of=/userdata.tar bs=1 count=8192
+        elif ! od -A d -N 1048576 ${dev} | head -n 3 | diff ./od-1m0 - >/dev/null 2>&1; then
+            # do not auto-format if the disk does not begin with 1MB filled with 00
+            continue
+        fi
+
+
+        if [ -e "/userdata.tar" ]; then
+            mkfs.ext4 -L B2D_STATE ${dev}
+            mkdir -p /mnt/new-root
+            mount -t ext4 ${dev} /mnt/new-root
+            pushd /mnt/new-root
+            mkdir -p ./var/lib/rancher/conf/cloud-config.d
+            echo $(tar -xvf /userdata.tar)
+            AUTHORIZED_KEY1=$(cat ./.ssh/authorized_keys)
+            AUTHORIZED_KEY2=$(cat ./.ssh/authorized_keys2)
+            tee ./var/lib/rancher/conf/cloud-config.d/machine.yml << EOF
+#cloud-config
+
+rancher:
+ network:
+  interfaces:
+   eth0:
+    dhcp: true
+   eth1:
+    dhcp: true
+   lo:
+    address: 127.0.0.1/8
+
+ssh_authorized_keys:
+ - ${AUTHORIZED_KEY1}
+ - ${AUTHORIZED_KEY2}
+
+users:
+ - name: docker
+   ssh_authorized_keys:
+   - ${AUTHORIZED_KEY1}
+   - ${AUTHORIZED_KEY2}
+EOF
+            popd
+            umount /mnt/new-root
+        else
+            mkfs.ext4 -L RANCHER_STATE ${dev}
+        fi
+
+        # do not check another device
+        break
+    fi
+done