Public bug reported:
The agent sets Before=network-pre.target but doesn't set DefaultDependencies=no
which is dangerous as it means that the service has to run after basic.target
but while the networking is not configured. It's not always a problem but if
another service depends on basic.target (default) and expects networking to be
available (for example by specifying
After=systemd-networkd-wait-online.service), a dependency cycle will appear.
On Ubuntu 22.04 and Ubuntu 24.04. This causing cloud-init to be disabled (thus
provisioning to fail) if the azure-proxy-agent is pre-installed on a VM image:
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found ordering cycle on
cloud-init.service/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found dependency on
systemd-networkd-wait-online.service/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found dependency on
systemd-networkd.service/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found dependency on
network-pre.target/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found dependency on
azure-proxy-agent.service/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found dependency on
basic.target/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Found dependency on
sysinit.target/start
Sep 03 16:27:16 ubuntu systemd[1]: sysinit.target: Job cloud-init.service/start
deleted to break ordering cycle starting with sysinit.target/start
** Affects: azure-proxy-agent (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2122345
Title:
Systemd circular dependency
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