install pigz on boot2docker tiny core linux environments (i.e. dinghy) for speedup on docker image layer extraction

README.md

connect to the boot2docker image via dinghy ssh

install-pigz.sh

# /var/lib/boot2docker/install-pigz.sh

#!/bin/bash

set -o errexit -o errtrace -o pipefail -o xtrace

PIGZ_VERSION=2.4
LINUX_HEADERS_VERSION=4.19

su - docker -c " \
  \
  cd /tmp \
    && if [ ! -f pigz.tar.gz ]; then curl -o pigz.tar.gz https://www.zlib.net/pigz/pigz-${PIGZ_VERSION}.tar.gz; fi \
    && echo 'https://distro.ibiblio.org/tinycorelinux' > /opt/tcemirror \
    && tce-load -wi zlib_base-dev glibc_base-dev glibc_add_lib make gcc linux-${LINUX_HEADERS_VERSION}_api_headers \
    && tar zvxf /var/lib/boot2docker/pigz.tar.gz && cd pigz-${PIGZ_VERSION} && make clean && make \
"
cp pigz /usr/local/bin && cp unpigz /usr/local/bin

profile

# /var/lib/boot2docker/profile

# <boot2docker env variables omitted for brevity>

./install-pigz.sh