• HAPROXY_VERSION: The haproxy version to download and build. (Default: 1.4.18)
• HAPROXY_TARGET: The OS to optimize for, see Haproxy's Makefile. (Default: linux).
• HAPROXY_CHROOT: The chroot directory to use for haproxy. (Default: /var/chroot/haproxy)

• build chain (TBD)
• bash
• curl

• Nothing

• Load balancer

• SSL Termination (?)

• Domain handling (?)

• Cron jobs (?)

• Log routing (?)

Operating System -> Stack -> Apps