Tech Wiki

automatic kernel updates

etcd is key-value store for the most critical data of distributed systems. etcd is a distributed key-value store that provides a relieble way to store data across a cluster of machines.

1. automatic kernel updates. contain linux uses etcd to store semaphore values to make sure only subset of cluster are rebooting at any given time.
2. Kubernets uses etcd to store cluster states for service discovery and cluster management, and it uses what API to monitor critical configuration changes.

In container linux, it is systemd service daemon.

Deprecated by CoreOS. CoreOS instead recommends Kubernetes for clustering needs. fleet is a cluster-wide elaboration on systemd units. fleet supports basic scheduling of systemd unis across nodes in a cluster. For container orchestration system - Kubernetes. Low level cluster scheduler .

container manager for Linux clusters.

1. not a background daemon

– container management software