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nodegroup.go
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nodegroup.go
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package get
import (
"context"
"os"
"strconv"
"time"
"github.com/aws/amazon-ec2-instance-selector/v2/pkg/selector"
"github.com/kris-nova/logger"
"github.com/weaveworks/eksctl/pkg/actions/nodegroup"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
api "github.com/weaveworks/eksctl/pkg/apis/eksctl.io/v1alpha5"
"github.com/weaveworks/eksctl/pkg/ctl/cmdutils"
"github.com/weaveworks/eksctl/pkg/printers"
)
func getNodeGroupCmd(cmd *cmdutils.Cmd) {
cfg := api.NewClusterConfig()
ng := api.NewNodeGroup()
cmd.ClusterConfig = cfg
params := &getCmdParams{}
cmd.SetDescription("nodegroup", "Get nodegroup(s)", "", "ng", "nodegroups")
cmd.CobraCommand.RunE = func(_ *cobra.Command, args []string) error {
cmd.NameArg = cmdutils.GetNameArg(args)
return doGetNodeGroup(cmd, ng, params)
}
cmd.FlagSetGroup.InFlagSet("General", func(fs *pflag.FlagSet) {
cmdutils.AddClusterFlag(fs, cfg.Metadata)
fs.StringVarP(&ng.Name, "name", "n", "", "Name of the nodegroup")
cmdutils.AddRegionFlag(fs, &cmd.ProviderConfig)
cmdutils.AddCommonFlagsForGetCmd(fs, ¶ms.chunkSize, ¶ms.output)
cmdutils.AddTimeoutFlag(fs, &cmd.ProviderConfig.WaitTimeout)
cmdutils.AddConfigFileFlag(fs, &cmd.ClusterConfigFile)
})
cmdutils.AddCommonFlagsForAWS(cmd, &cmd.ProviderConfig, false)
}
func doGetNodeGroup(cmd *cmdutils.Cmd, ng *api.NodeGroup, params *getCmdParams) error {
if err := cmdutils.NewGetNodegroupLoader(cmd, ng).Load(); err != nil {
return err
}
if params.output != printers.TableType {
//log warnings and errors to stderr
logger.Writer = os.Stderr
}
ctx := context.Background()
ctl, err := cmd.NewProviderForExistingCluster(ctx)
if err != nil {
return err
}
cfg := cmd.ClusterConfig
if ok, err := ctl.CanOperate(cfg); !ok {
return err
}
clientSet, err := ctl.NewStdClientSet(cfg)
if err != nil {
return err
}
instanceSelector, err := selector.New(ctx, ctl.AWSProvider.AWSConfig())
if err != nil {
return err
}
var summaries []*nodegroup.Summary
manager := nodegroup.New(cfg, ctl, clientSet, instanceSelector)
if ng.Name == "" {
summaries, err = manager.GetAll(ctx)
if err != nil {
return err
}
} else {
summary, err := manager.Get(ctx, ng.Name)
if err != nil {
return err
}
summaries = append(summaries, summary)
}
printer, err := printers.NewPrinter(params.output)
if err != nil {
return err
}
if params.output == printers.TableType {
// Empty summary implies no nodegroups
// We only error if the output is table, since if the output
// is yaml or json we should return an empty object.
if len(summaries) == 0 {
if ng.Name == "" {
return errors.Errorf("No nodegroups found")
}
return errors.Errorf("nodegroup with name %v not found", ng.Name)
}
addSummaryTableColumns(printer.(*printers.TablePrinter))
}
return printer.PrintObjWithKind("nodegroups", summaries, cmd.CobraCommand.OutOrStdout())
}
func addSummaryTableColumns(printer *printers.TablePrinter) {
printer.AddColumn("CLUSTER", func(s *nodegroup.Summary) string {
return s.Cluster
})
printer.AddColumn("NODEGROUP", func(s *nodegroup.Summary) string {
return s.Name
})
printer.AddColumn("STATUS", func(s *nodegroup.Summary) string {
return s.Status
})
printer.AddColumn("CREATED", func(s *nodegroup.Summary) string {
return s.CreationTime.Format(time.RFC3339)
})
printer.AddColumn("MIN SIZE", func(s *nodegroup.Summary) string {
return strconv.Itoa(s.MinSize)
})
printer.AddColumn("MAX SIZE", func(s *nodegroup.Summary) string {
return strconv.Itoa(s.MaxSize)
})
printer.AddColumn("DESIRED CAPACITY", func(s *nodegroup.Summary) string {
return strconv.Itoa(s.DesiredCapacity)
})
printer.AddColumn("INSTANCE TYPE", func(s *nodegroup.Summary) string {
return s.InstanceType
})
printer.AddColumn("IMAGE ID", func(s *nodegroup.Summary) string {
return s.ImageID
})
printer.AddColumn("ASG NAME", func(s *nodegroup.Summary) string {
return s.AutoScalingGroupName
})
printer.AddColumn("TYPE", func(s *nodegroup.Summary) api.NodeGroupType {
return s.NodeGroupType
})
}