Docker-compose for creating DAB files

Sorry another newb question!

Expected behavior

I would like to be able to create a DAB file using docker-copose method described at https://docs.docker.com/compose/bundles/#/producing-a-bundle however docker-compose is not installed and i cannot install it.

Actual behavior

I have run curl -L https://github.com/docker/compose/releases/download/1.8.1/docker-compose-uname -s-uname -m> /usr/local/bin/doc ker-compose

which seems to download OK, but then if I run docker-compose -v I get:
Error relocating /tmp/_MEIAHhlmj/libz.so.1: __vsnprintf_chk: symbol not found Error relocating /tmp/_MEIAHhlmj/libz.so.1: __sprintf_chk: symbol not found

If I try to follow the guide at https://docs.docker.com/engine/installation/linux/ubuntulinux/ when I run sudo apt-get update I get sudo: apt-get: command not found

Any help much appreciated!

OK ignore me. Didn’t realise I was running Alpine. Instructions at http://wiki.alpinelinux.org/wiki/Docker worked fine after upgrading pip