LCM Agent¶
LCM Agent handles a single machine that belongs to a management or managed
cluster. It runs on the machine operating system but communicates with
apiserver of the management cluster. LCM Agent is deployed as a systemd
unit using cloud-init. LCM Agent has a built-in self-upgrade mechanism.
LCM Agent monitors the spec of a particular LCMMachine object
to reconcile the machine state with the object StateItems and update
the LCMMachine status accordingly. The actions that LCM Agent performs
while handling the StateItems are as follows:
Download configuration files
Run shell commands
Run Ansible playbooks in headless mode
LCM Agent provides the IP address and host name of the machine for the
LCMMachine status parameter.