I am new to OVN, I just got to know about it when managed to setup up
Incus and Ceph as a Cluster after numerous tries. So OVN is missing. To
set it up with Incus following this guides:
* https://www.youtube.com/watch?v=1M__Rm9iZb8
*
https://linuxcontainers.org/incus/docs/main/howto/network_ovn_setup/#set-up-an-incus-cluster-on-ovn
In the Video on YouTube he mentions that a bridge can be used with an IP
Address already on it but not a Physical interface. Throwing that into
my attempts confuses me even more.
My starting point, no ovn is installed and using Systemd-networkd (Is
this of interest no guide talks about one specific?):
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host noprefixroute
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP group default qlen 1000
link/ether d8:3a:dd:e0:aa:7e brd ff:ff:ff:ff:ff:ff
inet 192.168.1.33/24 metric 1024 brd 192.168.1.255 scope global
dynamic eth0
valid_lft 1635sec preferred_lft 1635sec
inet6 fe80::da3a:ddff:fee0:aa7e/64 scope link
valid_lft forever preferred_lft forever
3: eth0.1000@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP group default qlen 1000
link/ether d8:3a:dd:e0:aa:7e brd ff:ff:ff:ff:ff:ff
inet 192.168.0.33/24 metric 1024 brd 192.168.0.255 scope global
dynamic eth0.1000
valid_lft 1633sec preferred_lft 1633sec
inet6 fe80::da3a:ddff:fee0:aa7e/64 scope link
valid_lft forever preferred_lft forever
My plan was to use eth0.1000.
So I started installing OVN:
for iin 192.168.1.3{1..3};do echo -e "\n\n $i";ssh root@$i "apt install -y ovn-central
ovn-host && systemctl stop ovn-central";done
*
@pi5n1:
cat << EOF> /etc/default/ovn-central
# This is a POSIX shell fragment -*- sh -*-
# OVN_CTL_OPTS: Extra options to pass to ovs-ctl. This is, for example,
# a suitable place to specify --ovn-northd-wrapper=valgrind.
OVN_CTL_OPTS=" \\ --db-nb-addr=192.168.0.31 \\ --db-nb-create-insecure-remote=yes \\
--db-sb-addr=192.168.0.31 \\ --db-sb-create-insecure-remote=yes \\
--db-nb-cluster-local-addr=192.168.0.31 \\
--db-sb-cluster-local-addr=192.168.0.31 \\
--ovn-northd-nb-db=tcp:192.168.0.31:6641,tcp:192.168.0.32:6641,tcp:192.168.0.33:6641
\\
--ovn-northd-sb-db=tcp:192.168.0.31:6642,tcp:192.168.0.32:6642,tcp:192.168.0.33:6642"
EOF
systemctl start ovn-central
ovs-vsctlset open_vswitch . \
external_ids:ovn-remote=tcp:192.168.0.31:6642,tcp:192.168.0.32:6642,tcp:192.168.0.33:6642
\
external_ids:ovn-encap-type=geneve \
external_ids:ovn-encap-ip=192.168.0.31
*
@pi5n2:
cat << EOF> /etc/default/ovn-central
# This is a POSIX shell fragment -*- sh -*-
# OVN_CTL_OPTS: Extra options to pass to ovs-ctl. This is, for example,
# a suitable place to specify --ovn-northd-wrapper=valgrind.
OVN_CTL_OPTS=" \\ --db-nb-addr=192.168.0.31 \\ --db-nb-create-insecure-remote=yes \\
--db-sb-addr=192.168.0.31 \\ --db-sb-create-insecure-remote=yes \\
--db-nb-cluster-local-addr=192.168.0.32 \\
--db-sb-cluster-local-addr=192.168.0.32 \\
--ovn-northd-nb-db=tcp:192.168.0.31:6641,tcp:192.168.0.32:6641,tcp:192.168.0.33:6641
\\
--ovn-northd-sb-db=tcp:192.168.0.31:6642,tcp:192.168.0.32:6642,tcp:192.168.0.33:6642"
EOF
systemctl start ovn-central
ovs-vsctlset open_vswitch . \
external_ids:ovn-remote=tcp:192.168.0.31:6642,tcp:192.168.0.32:6642,tcp:192.168.0.33:6642
\
external_ids:ovn-encap-type=geneve \
external_ids:ovn-encap-ip=192.168.0.32
*
@pi5n3:
cat << EOF> /etc/default/ovn-central
# This is a POSIX shell fragment -*- sh -*-
# OVN_CTL_OPTS: Extra options to pass to ovs-ctl. This is, for example,
# a suitable place to specify --ovn-northd-wrapper=valgrind.
OVN_CTL_OPTS=" \\ --db-nb-addr=192.168.0.31 \\ --db-nb-create-insecure-remote=yes \\
--db-sb-addr=192.168.0.31 \\ --db-sb-create-insecure-remote=yes \\
--db-nb-cluster-local-addr=192.168.0.33 \\
--db-sb-cluster-local-addr=192.168.0.33 \\
--ovn-northd-nb-db=tcp:192.168.0.31:6641,tcp:192.168.0.32:6641,tcp:192.168.0.33:6641
\\
--ovn-northd-sb-db=tcp:192.168.0.31:6642,tcp:192.168.0.32:6642,tcp:192.168.0.33:6642"
EOF
systemctl start ovn-central
ovs-vsctlset open_vswitch . \
external_ids:ovn-remote=tcp:192.168.0.31:6642,tcp:192.168.0.32:6642,tcp:192.168.0.33:6642
\
external_ids:ovn-encap-type=geneve \
external_ids:ovn-encap-ip=192.168.0.33
ovs-vsctl show
49568745-b80f-4884-bae3-6526fbe27980
Bridge br-int
fail_mode: secure
datapath_type: system
Port ovn-dcd203-0
Interface ovn-dcd203-0
type: geneve
options: {csum="true", key=flow, remote_ip="192.168.0.32"}
error: "could not add network device ovn-dcd203-0 to
ofproto (Address family not supported by protocol)"
Port br-int
Interface br-int
type: internal
Port ovn-928346-0
Interface ovn-928346-0
type: geneve
options: {csum="true", key=flow, remote_ip="192.168.0.33"}
error: "could not add network device ovn-928346-0 to
ofproto (Address family not supported by protocol)"
ovs_version: "3.1.0"
To me it looks like an IP Address Problem but no clue how to resolve my
problem. In the Video from Stéphane Graber he mentions something like
the bridge is the easier way to setup OVN, but still I haven't managed a
plan how to configure that bridge.
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