Notes for slimming down a fresh installation of Raspbian Stretch Lite. This guide does not strip Raspbian of basic functionality such as Bluetooth and mDNS.
Install a fresh Raspbian Stretch Lite image into the SD card ([source][1]).
$ unzip -p 2018-04-18-raspbian-stretch-lite.zip | dd bs=4M of=/dev/sdX conv=fsync
| #!/usr/bin/expect -f | |
| set prompt "#" | |
| set address [lindex $argv 0] | |
| spawn sudo bluetoothctl -a | |
| expect -re $prompt | |
| send "remove $address\r" | |
| sleep 1 | |
| expect -re $prompt |
| FROM gliderlabs/alpine:3.3 | |
| COPY myawesomescript /bin/myawesomescript | |
| COPY root /var/spool/cron/crontabs/root | |
| RUN chmod +x /bin/myawesomescript | |
| CMD crond -l 2 -f |