I can confirm that I also have this issue. If I ssh into the host and manually issue "systemctl restart haproxy" haproxy runs just fine. I am also using hostnames that resolve via DNS and not /etc/hosts.
This is a headless VM on wired network (KVM bridged network). The IP is assigned via DHCP. There is nothing in /etc/netplan /etc/hosts only has the default localhost entries and some IPv6 lines at the end (this network does not have IPv6, only the link local stuff). /etc/resolv.conf points to the localhost and thus I used: sudo systemd-resolve --status to get the actual DNS server(s), which are correct and functioning as expected. Any other ideas? -- You received this bug notification because you are a member of Ubuntu High Availability Team, which is subscribed to haproxy in Ubuntu. https://bugs.launchpad.net/bugs/1771335 Title: haproxy fails at startup when using server name instead of IP Status in haproxy package in Ubuntu: Expired Bug description: This is similar to #689734 I believe. When starting haproxy using a DNS name on the 'server' line haproxy fails to start, giving the message: ``` May 05 19:09:40 hyrule systemd[1]: Starting HAProxy Load Balancer... May 05 19:09:40 hyrule haproxy[1146]: [ALERT] 124/190940 (1146) : parsing [/etc/haproxy/haproxy.cfg:157] : 'server scanmon' : May 05 19:09:40 hyrule haproxy[1146]: [ALERT] 124/190940 (1146) : Failed to initialize server(s) addr. May 05 19:09:40 hyrule systemd[1]: haproxy.service: Control process exited, code=exited status=1 May 05 19:09:40 hyrule systemd[1]: haproxy.service: Failed with result 'exit-code'. May 05 19:09:40 hyrule systemd[1]: Failed to start HAProxy Load Balancer. ``` In this case the server statement was: ` server scanmon myservername.mydomain.org:8000` Changing it to use the IP address corrected the problem. I believe there is a missing dependency for DNS in the unit file. --Info: Description: Ubuntu 18.04 LTS Release: 18.04 haproxy: Installed: 1.8.8-1 Candidate: 1.8.8-1 Version table: *** 1.8.8-1 500 500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/haproxy/+bug/1771335/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-ha Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-ha More help : https://help.launchpad.net/ListHelp
