rke/services/controlplane.go

package services

import (
	"context"

	"github.com/rancher/rke/hosts"
	"github.com/rancher/rke/log"
	"github.com/rancher/types/apis/management.cattle.io/v3"
)

func RunControlPlane(ctx context.Context, controlHosts, etcdHosts []*hosts.Host, controlServices v3.RKEConfigServices, sidekickImage, authorizationMode string, localConnDialerFactory hosts.DialerFactory) error {
	log.Infof(ctx, "[%s] Building up Controller Plane..", ControlRole)
	for _, host := range controlHosts {

		if host.IsWorker {
			if err := removeNginxProxy(ctx, host); err != nil {
				return err
			}
		}
		// run sidekick
		if err := runSidekick(ctx, host, sidekickImage); err != nil {
			return err
		}
		// run kubeapi
		err := runKubeAPI(ctx, host, etcdHosts, controlServices.KubeAPI, authorizationMode, localConnDialerFactory)
		if err != nil {
			return err
		}
		// run kubecontroller
		err = runKubeController(ctx, host, controlServices.KubeController, authorizationMode, localConnDialerFactory)
		if err != nil {
			return err
		}
		// run scheduler
		err = runScheduler(ctx, host, controlServices.Scheduler, localConnDialerFactory)
		if err != nil {
			return err
		}
	}
	log.Infof(ctx, "[%s] Successfully started Controller Plane..", ControlRole)
	return nil
}

func RemoveControlPlane(ctx context.Context, controlHosts []*hosts.Host, force bool) error {
	log.Infof(ctx, "[%s] Tearing down the Controller Plane..", ControlRole)
	for _, host := range controlHosts {
		// remove KubeAPI
		if err := removeKubeAPI(ctx, host); err != nil {
			return err
		}

		// remove KubeController
		if err := removeKubeController(ctx, host); err != nil {
			return nil
		}

		// remove scheduler
		err := removeScheduler(ctx, host)
		if err != nil {
			return err
		}

		// check if the host already is a worker
		if host.IsWorker {
			log.Infof(ctx, "[%s] Host [%s] is already a worker host, skipping delete kubelet and kubeproxy.", ControlRole, host.Address)
		} else {
			// remove KubeAPI
			if err := removeKubelet(ctx, host); err != nil {
				return err
			}
			// remove KubeController
			if err := removeKubeproxy(ctx, host); err != nil {
				return nil
			}
			// remove Sidekick
			if err := removeSidekick(ctx, host); err != nil {
				return err
			}
		}
	}
	log.Infof(ctx, "[%s] Successfully teared down Controller Plane..", ControlRole)
	return nil
}