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nodegroup.go
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nodegroup.go
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package delete
import (
"github.com/kris-nova/logger"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
api "github.com/weaveworks/eksctl/pkg/apis/eksctl.io/v1alpha5"
"github.com/weaveworks/eksctl/pkg/authconfigmap"
"github.com/weaveworks/eksctl/pkg/ctl/cmdutils"
"github.com/weaveworks/eksctl/pkg/ctl/cmdutils/filter"
"github.com/weaveworks/eksctl/pkg/drain"
)
func deleteNodeGroupCmd(cmd *cmdutils.Cmd) {
deleteNodeGroupWithRunFunc(cmd, func(cmd *cmdutils.Cmd, ng *api.NodeGroup, updateAuthConfigMap, deleteNodeGroupDrain, onlyMissing bool) error {
return doDeleteNodeGroup(cmd, ng, updateAuthConfigMap, deleteNodeGroupDrain, onlyMissing)
})
}
func deleteNodeGroupWithRunFunc(cmd *cmdutils.Cmd, runFunc func(cmd *cmdutils.Cmd, ng *api.NodeGroup, updateAuthConfigMap, deleteNodeGroupDrain, onlyMissing bool) error) {
cfg := api.NewClusterConfig()
ng := api.NewNodeGroup()
cmd.ClusterConfig = cfg
var updateAuthConfigMap, deleteNodeGroupDrain, onlyMissing bool
cmd.SetDescription("nodegroup", "Delete a nodegroup", "", "ng")
cmd.CobraCommand.RunE = func(_ *cobra.Command, args []string) error {
cmd.NameArg = cmdutils.GetNameArg(args)
return runFunc(cmd, ng, updateAuthConfigMap, deleteNodeGroupDrain, onlyMissing)
}
cmd.FlagSetGroup.InFlagSet("General", func(fs *pflag.FlagSet) {
fs.StringVar(&cfg.Metadata.Name, "cluster", "", "EKS cluster name")
cmdutils.AddRegionFlag(fs, cmd.ProviderConfig)
fs.StringVarP(&ng.Name, "name", "n", "", "Name of the nodegroup to delete")
cmdutils.AddConfigFileFlag(fs, &cmd.ClusterConfigFile)
cmdutils.AddApproveFlag(fs, cmd)
cmdutils.AddNodeGroupFilterFlags(fs, &cmd.Include, &cmd.Exclude)
fs.BoolVar(&onlyMissing, "only-missing", false, "Only delete nodegroups that are not defined in the given config file")
cmdutils.AddUpdateAuthConfigMap(fs, &updateAuthConfigMap, "Remove nodegroup IAM role from aws-auth configmap")
fs.BoolVar(&deleteNodeGroupDrain, "drain", true, "Drain and cordon all nodes in the nodegroup before deletion")
cmd.Wait = false
cmdutils.AddWaitFlag(fs, &cmd.Wait, "deletion of all resources")
cmdutils.AddTimeoutFlag(fs, &cmd.ProviderConfig.WaitTimeout)
})
cmdutils.AddCommonFlagsForAWS(cmd.FlagSetGroup, cmd.ProviderConfig, true)
}
func doDeleteNodeGroup(cmd *cmdutils.Cmd, ng *api.NodeGroup, updateAuthConfigMap, deleteNodeGroupDrain, onlyMissing bool) error {
ngFilter := filter.NewNodeGroupFilter()
if err := cmdutils.NewDeleteNodeGroupLoader(cmd, ng, ngFilter).Load(); err != nil {
return err
}
cfg := cmd.ClusterConfig
ctl, err := cmd.NewCtl()
if err != nil {
return err
}
cmdutils.LogRegionAndVersionInfo(cfg.Metadata)
if err := ctl.CheckAuth(); err != nil {
return err
}
if ok, err := ctl.CanOperate(cfg); !ok {
return err
}
clientSet, err := ctl.NewStdClientSet(cfg)
if err != nil {
return err
}
stackManager := ctl.NewStackManager(cfg)
if cmd.ClusterConfigFile != "" {
logger.Info("comparing %d nodegroups defined in the given config (%q) against remote state", len(cfg.NodeGroups), cmd.ClusterConfigFile)
if onlyMissing {
err = ngFilter.SetOnlyRemote(stackManager, cfg)
if err != nil {
return err
}
}
} else {
nodeGroupType, err := stackManager.GetNodeGroupStackType(ng.Name)
if err != nil {
return err
}
switch nodeGroupType {
case api.NodeGroupTypeUnmanaged:
cfg.NodeGroups = []*api.NodeGroup{ng}
case api.NodeGroupTypeManaged:
cfg.ManagedNodeGroups = []*api.ManagedNodeGroup{
{
Name: ng.Name,
},
}
}
}
logFiltered := cmdutils.ApplyFilter(cfg, ngFilter)
logFiltered()
if updateAuthConfigMap {
for _, ng := range cfg.NodeGroups {
if ng.IAM == nil || ng.IAM.InstanceRoleARN == "" {
if err := ctl.GetNodeGroupIAM(stackManager, ng); err != nil {
logger.Warning("error getting instance role ARN for nodegroup %q: %v", ng.Name, err)
return nil
}
}
}
}
allNodeGroups := cmdutils.ToKubeNodeGroups(cfg)
if deleteNodeGroupDrain {
cmdutils.LogIntendedAction(cmd.Plan, "drain %d nodegroup(s) in cluster %q", len(allNodeGroups), cfg.Metadata.Name)
if !cmd.Plan {
for _, ng := range allNodeGroups {
if err := drain.NodeGroup(clientSet, ng, ctl.Provider.WaitTimeout(), false); err != nil {
return err
}
}
}
}
cmdutils.LogIntendedAction(cmd.Plan, "delete %d nodegroups from cluster %q", len(allNodeGroups), cfg.Metadata.Name)
{
shouldDelete := func(ngName string) bool {
for _, ng := range allNodeGroups {
if ng.NameString() == ngName {
return true
}
}
return false
}
tasks, err := stackManager.NewTasksToDeleteNodeGroups(shouldDelete, cmd.Wait, nil)
if err != nil {
return err
}
tasks.PlanMode = cmd.Plan
logger.Info(tasks.Describe())
if errs := tasks.DoAllSync(); len(errs) > 0 {
return handleErrors(errs, "nodegroup(s)")
}
}
if updateAuthConfigMap {
cmdutils.LogIntendedAction(cmd.Plan, "delete %d nodegroups from auth ConfigMap in cluster %q", len(cfg.NodeGroups), cfg.Metadata.Name)
if !cmd.Plan {
for _, ng := range cfg.NodeGroups {
if err := authconfigmap.RemoveNodeGroup(clientSet, ng); err != nil {
logger.Warning(err.Error())
}
}
}
}
cmdutils.LogCompletedAction(cmd.Plan, "deleted %d nodegroup(s) from cluster %q", len(allNodeGroups), cfg.Metadata.Name)
cmdutils.LogPlanModeWarning(cmd.Plan && len(allNodeGroups) > 0)
return nil
}