# Copyright (c) 2016, Maciej Sieczka. All rights reserved
#
# Minimal installation process is defined in mods/linux_build_arch.smod. A
# couple extra actions are called from here using RunCmd and InstallPkgs
# Singularity bootstrap keywords. Adjust them as needed.
# https://wiki.archlinux.org/index.php/Installation_Guide may come in handy.

DistType "arch"

# "Setup" keyword doesn't do anything anymore, at least as of Singularity
# 2.1.2. Undocumented "PreSetup" replaced it and is called at each
# `singularity bootstrap' run.
# Setup

Bootstrap

# Set time zone. Use whatever you prefer instead of UTC.
RunCmd ln -s /usr/share/zoneinfo/UTC /etc/localtime

# WARNING: Make sure you prefix the STDOUT redirection target (ie. that guy
# after `>' or `>>`) with $SINGULARITY_BUILD_ROOT in RunCmd calls, as below.
# Otherwise such command will write to host's filesystem, at least as of
# Singularity 2.1.2! This is a known issue, going to be fixed. See
# https://github.com/gmkurtzer/singularity/issues/200.

# Set locale. Use whatever you prefer instead of en_US.
RunCmd echo 'en_US.UTF-8 UTF-8' > "$SINGULARITY_BUILD_ROOT"/etc/locale.gen
# Add more locales as needed, eg:
# RunCmd echo 'pl_PL.UTF-8 UTF-8' >> "$SINGULARITY_BUILD_ROOT"/etc/locale.gen
RunCmd locale-gen
RunCmd echo 'LANG=en_US.UTF-8' > "$SINGULARITY_BUILD_ROOT"/etc/locale.conf
# Mind that Singularity's shell will use host's locale no matter what anyway,
# as of version 2.1.2. This may change in a future release.

# Set the package mirror server(s). This is only for the output image's
# mirrorlist. `pacstrap' can only use your hosts's package mirrors.
RunCmd echo 'Server = https://mirrors.kernel.org/archlinux/$repo/os/$arch' > "$SINGULARITY_BUILD_ROOT"/etc/pacman.d/mirrorlist
# Add any number of fail-over servers, eg:
RunCmd echo 'Server = https://archlinux.honkgong.info/$repo/os/$arch' >> "$SINGULARITY_BUILD_ROOT"/etc/pacman.d/mirrorlist

# I need VIM and Bash completion. Specify your extra packages as needed.
InstallPkgs vim bash-completion

# Remove the packages downloaded to image's Pacman cache dir during
# InstallPkgs. BTW, `pacstrap', used in Bootstrap step, uses host's package
# cache rather than the image's.
RunCmd paccache -r -k0

Cleanup
=======
# Copyright (c) 2015-2017, Gregory M. Kurtzer. All rights reserved.
#
# "Singularity" Copyright (c) 2016, The Regents of the University of California,
# through Lawrence Berkeley National Laboratory (subject to receipt of any
# required approvals from the U.S. Dept. of Energy).  All rights reserved.
#

# Minimal installation process is defined in
# libexec/bootstrap/modules-v2/dist-arch.sh. A couple extra actions are called
# from here in '%post' section. Adjust them as needed.
# https://wiki.archlinux.org/index.php/Installation_Guide may come in handy.

BootStrap: arch

%runscript
    echo "This is what happens when you run the container..."

%post
    echo "Hello from inside the container"

    # Set time zone. Use whatever you prefer instead of UTC.
    ln -s /usr/share/zoneinfo/UTC /etc/localtime

    # Set locale. Use whatever you prefer instead of en_US.
    echo 'en_US.UTF-8 UTF-8' > /etc/locale.gen
    # Add more locales as needed, eg:
    # echo 'pl_PL.UTF-8 UTF-8' >> /etc/locale.gen
    locale-gen
    echo 'LANG=en_US.UTF-8' > /etc/locale.conf
    # Mind that Singularity's shell will use host's locale no matter what
    # anyway, as of version 2.1.2. This may change in a future release.

    # Set the package mirror server(s). This is only for the output image's
    # mirrorlist. `pacstrap' can only use your hosts's package mirrors.
    echo 'Server = https://mirrors.kernel.org/archlinux/$repo/os/$arch' > /etc/pacman.d/mirrorlist
    # Add any number of fail-over servers, eg:
    echo 'Server = https://archlinux.honkgong.info/$repo/os/$arch' >> /etc/pacman.d/mirrorlist

    # I need VIM and Bash completion. Specify your extra packages as needed.
    pacman -Sy --noconfirm vim bash-completion

    # Remove the packages downloaded to image's Pacman cache dir.
    paccache -r -k0