Make systemd monitor look back for 5m #319
Merged
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systemd monitor is currently used to detect kubelet/docker/containerd start events. This PR makes the monitor to look back for 5 minutes, which means, it checks the logs from the beginning when the node is booted.
When a node is booted on GKE, kubelet and docker are both restarted a few times, which can happen before or after NPD is started (NPD is running in standalone mode). If we look back for 5m, it should be enough for NPD to capture all the kubelet/docker/containerd start events from the boot time. This provides a complete picture of those components' health.