Ubuntu
netplan.io package

Restarting systemd-networkd breaks keepalived clusters

Bug #1820281 reported by sascha arthur
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
keepalived (Ubuntu)
Confirmed
Undecided
Unassigned
netplan.io (Ubuntu)
Confirmed
High
Unassigned
systemd (Ubuntu)
Confirmed
High
Unassigned

Bug Description

Hello,

Managing a HA floating IP with netplan and keepalived brings trouble.
Im managing a two node keepalived cluster with a floating IP.
Everything works out except if i run on a the master node (which holds floating ip) "netplan apply".
Prob netplan resets the whole interface, leaving keepalived in a broken state.
This works without any trouble using the old iproute2 approach.

Even setting, net.ipv4.conf.*.promote_secondaries does not help out.

We need definitly an non strict reset option for interfaces in thise case.

sascha arthur (sarthur)
summary: - netplan, keepalived
+ netplan, keepalived, netplan-apply
Mathieu Trudel-Lapierre (cyphermox)
summary: - netplan, keepalived, netplan-apply
+ Restarting systemd-networkd breaks keepalived clusters
Changed in systemd (Ubuntu):
importance: Undecided → High
Changed in netplan.io (Ubuntu):
importance: Undecided → High
status: New → Confirmed
Changed in systemd (Ubuntu):
status: New → Confirmed
Revision history for this message
sascha arthur (sarthur) wrote :

Heres a possible workaround until its solved (did not test it, but seems valid): https://chr4.org/blog/2019/01/21/make-keepalived-play-nicely-with-netplan-slash-systemd-network/

Personally i can live with 1-2 sek downtime (on network change), thats why i added a subscribe hook in puppet to restart keepalived.

Will get rid of the workaround as soon as its solved, which is currently hardly worked on it seems.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in keepalived (Ubuntu):
status: New → Confirmed
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.