Hi misc,
I wanted to tinker with the cluster manager sysutils/nomad but
unfortunately I´ve no spare cluster for tinkering...
So I had the idea of utilizing OpenBSDs outstanding
possibilities for network isolation to create a
virtual cluster on my VM at openbsd.amsterdam.
I had different ideas to achieve it but nothing worked so far.
So I'd describe my first approach because I think this is the
most OpenBSD idiomatic one:
I created 5 vether[0-4] devices, everyone in its own rdomain [0-4]
and assigned every device its own inet address space 10.10.[0-4].1/24
I also set the 10.10.[0-4].1 as default route in each rtable.
Now I learned that pf(4) is needed to route between this 5 rdomains
but after several attempts I've no clue how this could be defined.
Actually I wanted rdomain 0 to work as hub for all rdomains >0.
Maybe someone can hint me in the right direction....
regards
Thomas (host of the u2k20-hackathon, if someone remembers ;-)
some further listings if my description above is unclear:
ud$ ifconfig vether
vether0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr fe:e1:ba:d7:cc:16
index 23 priority 0 llprio 3
groups: vether
media: Ethernet autoselect
status: active
inet 10.10.0.1 netmask 0xff000000 broadcast 10.255.255.255
vether1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> rdomain 1 mtu
1500
lladdr fe:e1:ba:d8:73:32
index 24 priority 0 llprio 3
groups: vether
media: Ethernet autoselect
status: active
inet 10.10.1.1 netmask 0xff000000 broadcast 10.255.255.255
vether2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> rdomain 2 mtu
1500
lladdr fe:e1:ba:d9:bd:e8
index 26 priority 0 llprio 3
groups: vether
media: Ethernet autoselect
status: active
inet 10.10.2.1 netmask 0xff000000 broadcast 10.255.255.255
vether3: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> rdomain 3 mtu
1500
lladdr fe:e1:ba:da:07:4d
index 28 priority 0 llprio 3
groups: vether
media: Ethernet autoselect
status: active
inet 10.10.3.1 netmask 0xff000000 broadcast 10.255.255.255
vether4: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> rdomain 4 mtu
1500
lladdr fe:e1:ba:db:31:c8
index 30 priority 0 llprio 3
groups: vether
media: Ethernet autoselect
status: active
inet 10.10.4.1 netmask 0xff000000 broadcast 10.255.255.255
ud$ netstat -R
Rdomain 0
Interfaces: lo0 vio0 enc0 pflog0 vether0
Routing tables: 0 71
Rdomain 1
Interfaces: vether1 lo1
Routing table: 1
Rdomain 2
Interfaces: vether2 lo2
Routing table: 2
Rdomain 3
Interfaces: vether3 lo3
Routing table: 3
Rdomain 4
Interfaces: vether4 lo4
Routing table: 4
