Bootstrap: docker
From: ubuntu:16.04

# =======================
# global
# =======================
%post
    apt-get -y update

%environment
    export LC_ALL=C
    export PATH=/usr/games:$PATH

# =======================
# fortune
# =======================
%appinstall fortune
    apt-get -y install fortune

%appenv fortune
    BEST_APP=fortune
    export BEST_APP

%apphelp fortune
    fortune is the best app

%apprun fortune
    fortune "$@"

# =======================
# cowsay
# =======================
%appinstall cowsay
    apt-get -y install cowsay

%appenv cowsay
    BEST_APP=cowsay
    export BEST_APP

%apphelp cowsay
    cowsay is the best app

%apprun cowsay
    cowsay "$@"

# =======================
# lolcat
# =======================
%appinstall lolcat
    apt-get -y install lolcat

%appenv lolcat
    BEST_APP=lolcat
    export BEST_APP

%apphelp lolcat
    lolcat is the best app

%apprun lolcat
    lolcat "$@"