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controlplane.go
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controlplane.go
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package services
import (
"context"
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/log"
"github.com/rancher/rke/pki"
"github.com/rancher/rke/util"
"github.com/rancher/types/apis/management.cattle.io/v3"
"golang.org/x/sync/errgroup"
)
func RunControlPlane(ctx context.Context, controlHosts []*hosts.Host, localConnDialerFactory hosts.DialerFactory, prsMap map[string]v3.PrivateRegistry, cpNodePlanMap map[string]v3.RKEConfigNodePlan, updateWorkersOnly bool, alpineImage string, certMap map[string]pki.CertificatePKI) error {
if updateWorkersOnly {
return nil
}
log.Infof(ctx, "[%s] Building up Controller Plane..", ControlRole)
var errgrp errgroup.Group
hostsQueue := util.GetObjectQueue(controlHosts)
for w := 0; w < WorkerThreads; w++ {
errgrp.Go(func() error {
var errList []error
for host := range hostsQueue {
runHost := host.(*hosts.Host)
err := doDeployControlHost(ctx, runHost, localConnDialerFactory, prsMap, cpNodePlanMap[runHost.Address].Processes, alpineImage, certMap)
if err != nil {
errList = append(errList, err)
}
}
return util.ErrList(errList)
})
}
if err := errgrp.Wait(); 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)
var errgrp errgroup.Group
hostsQueue := util.GetObjectQueue(controlHosts)
for w := 0; w < WorkerThreads; w++ {
errgrp.Go(func() error {
var errList []error
for host := range hostsQueue {
runHost := host.(*hosts.Host)
if err := removeKubeAPI(ctx, runHost); err != nil {
errList = append(errList, err)
}
if err := removeKubeController(ctx, runHost); err != nil {
errList = append(errList, err)
}
if err := removeScheduler(ctx, runHost); err != nil {
errList = append(errList, err)
}
// force is true in remove, false in reconcile
if force {
if err := removeKubelet(ctx, runHost); err != nil {
errList = append(errList, err)
}
if err := removeKubeproxy(ctx, runHost); err != nil {
errList = append(errList, err)
}
if err := removeSidekick(ctx, runHost); err != nil {
errList = append(errList, err)
}
}
}
return util.ErrList(errList)
})
}
if err := errgrp.Wait(); err != nil {
return err
}
log.Infof(ctx, "[%s] Successfully tore down Controller Plane..", ControlRole)
return nil
}
func RestartControlPlane(ctx context.Context, controlHosts []*hosts.Host) error {
log.Infof(ctx, "[%s] Restarting the Controller Plane..", ControlRole)
var errgrp errgroup.Group
hostsQueue := util.GetObjectQueue(controlHosts)
for w := 0; w < WorkerThreads; w++ {
errgrp.Go(func() error {
var errList []error
for host := range hostsQueue {
runHost := host.(*hosts.Host)
// restart KubeAPI
if err := RestartKubeAPI(ctx, runHost); err != nil {
errList = append(errList, err)
}
// restart KubeController
if err := RestartKubeController(ctx, runHost); err != nil {
errList = append(errList, err)
}
// restart scheduler
err := RestartScheduler(ctx, runHost)
if err != nil {
errList = append(errList, err)
}
}
return util.ErrList(errList)
})
}
if err := errgrp.Wait(); err != nil {
return err
}
log.Infof(ctx, "[%s] Successfully restarted Controller Plane..", ControlRole)
return nil
}
func doDeployControlHost(ctx context.Context, host *hosts.Host, localConnDialerFactory hosts.DialerFactory, prsMap map[string]v3.PrivateRegistry, processMap map[string]v3.Process, alpineImage string, certMap map[string]pki.CertificatePKI) error {
if host.IsWorker {
if err := removeNginxProxy(ctx, host); err != nil {
return err
}
}
// run sidekick
if err := runSidekick(ctx, host, prsMap, processMap[SidekickContainerName]); err != nil {
return err
}
// run kubeapi
if err := runKubeAPI(ctx, host, localConnDialerFactory, prsMap, processMap[KubeAPIContainerName], alpineImage, certMap); err != nil {
return err
}
// run kubecontroller
if err := runKubeController(ctx, host, localConnDialerFactory, prsMap, processMap[KubeControllerContainerName], alpineImage); err != nil {
return err
}
// run scheduler
return runScheduler(ctx, host, localConnDialerFactory, prsMap, processMap[SchedulerContainerName], alpineImage)
}