The linux-ppc64 buildlets run on PPC64 VMs at osuosl.org (OSU Open Source Lab).

Filing tickets: https://support.osuosl.org/
    Ticket username: bradfitz@golang.org
    Ticket password: go/pw-osuosl-ppc64

Machines:

* go-be-xenial-3: (20 GB RAM, 50 GB disk, 10 cores, POWER8)

  ssh -i ~/.ssh/id_ed25519_golang1 ubuntu@140.211.169.164
  (key from go/go-builders-ssh)

  Linux go-be-xenial-3 4.4.0-130-powerpc64-smp #156-Ubuntu SMP Thu Jun 14 09:28:49 UTC 2018 ppc64 ppc64 ppc64 GNU/Linux

# Installing Docker on the unsupported ppc64 platform

There are 3 main scripts, in chronological order:
- build-golang.sh
- build-docker.sh
- build-ubuntu.sh

## Go toolchain

The build-golang.sh script will create a Go toolchain for ppc64 and is meant to be run on a system for which Go has official releases, such as linux/amd64.

The resulting tgz archive (and sha256 checksum file) should be sent to the ppc64 machine

## Docker

The build-docker.sh script assumes it is running on the target ppc64 machine, after the Go toolchain archive and corresponding checksum file were transferred to the current directory.
It will install docker and its dependencies to /usr/local/bin/ but will not start docker.

## Ubuntu base image

The build-ubuntu.sh script is to show how the tiborvass/ubuntu:xenial-ppc64 base image was built.
To build images with static binaries only, there is no need for an ubuntu base image.
Keep in mind, that the ubuntu packages are all 32bit, even though the kernel is 64bit.

# Cleanup

The cleanup.sh script by default uninstalls from /usr/local/bin/
`./cleanup.sh all` will however remove all intermediary files and folders such as extracted archives.