DIY opinionated Docker

1. DIY Opinionated Docker
Conair

2. Less configuration more convention
● Archlinux
● Btrfs
● Systemd
Conair

3. ● systemd-networkd
● systemd-nspawn
Systemd

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

5. ● Subvolumes
● Snapshots
Btrfs

6. IMAGES=/var/lib/conair/images/base
pacstrap -i -c -d $IMAGES base
Base Image

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

8. Setup env: conair init
Docker Verbs: conair attach,
commit, images, ps, rm, rmi, run
Systemd Status: conair status
<container>
Conair

9. ● Fun
● Systemd integration
● Multiple services in containers
but only one process manager
● All CoreOS components in a
container
○ Docker, Etcd, Fleet, Systemd
Why?