DIY Opinionated Docker

Conair

Less configuration more convention

● Archlinux● Btrfs● Systemd

Conair

● systemd-networkd● systemd-nspawn

Systemd

● systemd-networkd● bridge: nspawn0 (DHCPServer)● veths (DHCPClient)

Network

● Subvolumes● Snapshots

Btrfs

IMAGES=/var/lib/conair/images/basepacstrap -i -c -d $IMAGES base

Base Image

● Create Veths - Join Bridge● Boot Container (systemd)● Name Machine (machinectl)

Nspawn

Setup env: conair init

Docker Verbs: conair attach, commit, images, ps, rm, rmi, run

Systemd Status: conair status <container>

Conair

● Fun● Systemd integration● Multiple services in containers

but only one process manager● All CoreOS components in a

container○ Docker, Etcd, Fleet, Systemd

Why?