mirror of https://github.com/kubernetes/kops.git
127 lines
2.9 KiB
Go
127 lines
2.9 KiB
Go
package main
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import (
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"fmt"
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"github.com/spf13/cobra"
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api "k8s.io/kops/pkg/apis/kops"
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"k8s.io/kops/pkg/apis/kops/registry"
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"k8s.io/kops/util/pkg/tables"
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k8sapi "k8s.io/kubernetes/pkg/api"
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"os"
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"strings"
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)
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type GetClustersCmd struct {
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FullSpec bool
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}
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var getClustersCmd GetClustersCmd
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func init() {
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cmd := &cobra.Command{
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Use: "clusters",
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Aliases: []string{"cluster"},
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Short: "get clusters",
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Long: `List or get clusters.`,
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Run: func(cmd *cobra.Command, args []string) {
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err := getClustersCmd.Run(args)
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if err != nil {
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exitWithError(err)
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}
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},
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}
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getCmd.cobraCommand.AddCommand(cmd)
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cmd.Flags().BoolVar(&getClustersCmd.FullSpec, "full", false, "Show fully populated configuration")
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}
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func (c *GetClustersCmd) Run(args []string) error {
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client, err := rootCommand.Clientset()
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if err != nil {
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return err
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}
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clusterList, err := client.Clusters().List(k8sapi.ListOptions{})
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if err != nil {
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return err
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}
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var clusters []*api.Cluster
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if len(args) != 0 {
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m := make(map[string]*api.Cluster)
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for i := range clusterList.Items {
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c := &clusterList.Items[i]
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m[c.Name] = c
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}
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for _, arg := range args {
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ig := m[arg]
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if ig == nil {
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return fmt.Errorf("cluster not found %q", arg)
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}
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clusters = append(clusters, ig)
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}
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} else {
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for i := range clusterList.Items {
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c := &clusterList.Items[i]
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clusters = append(clusters, c)
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}
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}
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if len(clusters) == 0 {
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fmt.Fprintf(os.Stderr, "No clusters found\n")
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return nil
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}
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output := getCmd.output
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if output == OutputTable {
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t := &tables.Table{}
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t.AddColumn("NAME", func(c *api.Cluster) string {
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return c.Name
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})
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t.AddColumn("CLOUD", func(c *api.Cluster) string {
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return c.Spec.CloudProvider
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})
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t.AddColumn("ZONES", func(c *api.Cluster) string {
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var zoneNames []string
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for _, z := range c.Spec.Zones {
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zoneNames = append(zoneNames, z.Name)
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}
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return strings.Join(zoneNames, ",")
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})
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return t.Render(clusters, os.Stdout, "NAME", "CLOUD", "ZONES")
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} else if output == OutputYaml {
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if c.FullSpec {
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var fullSpecs []*api.Cluster
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for _, cluster := range clusters {
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configBase, err := registry.ConfigBase(cluster)
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if err != nil {
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return fmt.Errorf("error reading full cluster spec for %q: %v", cluster.Name, err)
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}
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fullSpec := &api.Cluster{}
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err = registry.ReadConfig(configBase.Join(registry.PathClusterCompleted), fullSpec)
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if err != nil {
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return fmt.Errorf("error reading full cluster spec for %q: %v", cluster.Name, err)
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}
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fullSpecs = append(fullSpecs, fullSpec)
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}
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clusters = fullSpecs
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}
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for _, cluster := range clusters {
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y, err := api.ToYaml(cluster)
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if err != nil {
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return fmt.Errorf("error marshaling yaml for %q: %v", cluster.Name, err)
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}
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_, err = os.Stdout.Write(y)
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if err != nil {
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return fmt.Errorf("error writing to stdout: %v", err)
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}
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}
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return nil
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} else {
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return fmt.Errorf("Unknown output format: %q", output)
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}
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}
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