VR webserver apache2 failing to start

[GaryD0070]

• Bug Report

COMPONENT NAME

VR - webserver.service

CLOUDSTACK VERSION

4.15.2

CONFIGURATION

Advanced Zone with KVM hypervisor - no security groups. VPC's with Redundant VR's

OS / ENVIRONMENT

All KVM hosts and MGMT/MySQL 8 servers are running Ubuntu 20.04. VR is default template

SUMMARY

We have recently started to see VR health check failures on the VR webserver.service. The error from the systemctl status apache2.service command is : cannot define multiple listeners on the same IP:port

STEPS TO REPRODUCE

Not sure how the issue is being caused but a VPC restart with cleanup seems to fix it

EXPECTED RESULTS

@weizhouapache
Attached as requested are the /etc/apache2/ conf files
apache2.tar.gz

ACTUAL RESULTS

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template!

[weizhouapache]

@GaryD0070
can you move the two config files to other folder (for backup) and restart apache2 service ?

[GaryD0070]

@weizhouapache thanks Wei - that has worked - the apache2.service now starts - but not sure as to what caused this in the first place ?

[weizhouapache]

all 3 vhost-172.24.2.*.conf has the listener for 172.24.2.1 (gateway of VPC tiers)

it can be reproduced by

• create a vpc and tier (e.g 172.24.2.0/24), and a VM in the tier, the VR has a IP (e.g. 172.24.2.128)
• remove the vpc tier
• create a vpc and tier (e.g 172.24.2.0/24), and a VM in the tier, the VR has a IP (e.g. 172.24.2.53)
• remove the vpc tier
• create a vpc and tier (e.g 172.24.2.0/24), and a VM in the tier, the VR has a IP (e.g. 172.24.2.17)

the vhost-172.24.2.x.conf (e.g. 2.128/2.53) should be removed when remove the vpc tiers.

[GaryD0070]

@weizhouapache this makes complete sense now. We were re-creating the network tiers in the VPC but not cleaning up the VPC in-between.

[DaanHoogland]

@GaryD0070 do you see an opportunity to test @weizhouapache 's PR #7982 ?