Systemd startup

[jhnlsn]

Users running Centos/RHEL 8 may experience a problem with the agent after rebooting their instance where the agent no longer publishes data to CloudWatch.

change "After=network.target" to "After=network-online.target"

More information about different targets: https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/

amazon-cloudwatch-agent/packaging/dependencies/amazon-cloudwatch-agent.service

Line 12 in 14aba55

After=network.target

[SaxyPandaBear]

More reading on systemd and the network targets.

The network target does not significantly delay the execution of the boot process. Reaching the network target means that the service that is responsible for setting up the network has started. However, it does not mean that a network device was configured. This target is important during the shutdown of the system. For example, if you have a service that was ordered after the network target during bootup, then this dependency is reversed during the shutdown. The network does not get disconnected until your service has been stopped. All mount units for remote network file systems automatically start the network-online target unit and order themselves after it.