paictl-design.md

paictl design

Overview

paictl cluster

• Besides generation the cluster-configuration from the machine-list, the main responsibilities are boot and clean kubernetes-cluster.

• k8s-bootup:

  • According to the different role of the node in kubernetes-cluster, paictl will prepare different package for remote working. The package content of different role is defined in the deploy.yaml
  • paictl will send the package to each machine through paramiko, and execute corresponding script on the remote machine.
  • After the k8s cluster is bootup, paictl will install kubectl for you to manage the cluster.

• k8s-clean:
  • The same process as k8s-bootup.

paictl config

• paictl config command is designed for cluster configuration management.
• With paictl config, you could sync the latest configuration from git or local to k8s-configmap.
• With paictl config, you could get the cluster configuration from k8s-configmap
• With paictl config, you could set the external storage type. And based on it, paictl could sync the latest data from the right place.

paictl machine

• paictl machine command is designed for daily maintenance, such as add and remove machine.
• Just like k8s-bootup, paictl machine will prepare package and send them to the remote machine through paramiko, then execute them.

paictl service

• paictl will iterate all folder in the path pai/src. If it contains the file service.yaml and corresponding operation script, paictl will call the script to handle the operator.

• paictl will solve the start order of the services according to the configuration in the service.yaml