2020-03-06 15:09:10 +00:00
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package command
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import (
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2021-04-08 15:13:36 +00:00
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"errors"
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2020-03-06 15:09:10 +00:00
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"fmt"
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2021-04-08 15:13:36 +00:00
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"io"
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2020-03-06 15:09:10 +00:00
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"sort"
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"strings"
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"github.com/hashicorp/nomad/api"
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2020-03-23 17:55:26 +00:00
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"github.com/hashicorp/nomad/nomad/structs"
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2020-03-06 15:09:10 +00:00
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)
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func (c *VolumeStatusCommand) csiBanner() {
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if !(c.json || len(c.template) > 0) {
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c.Ui.Output(c.Colorize().Color("[bold]Container Storage Interface[reset]"))
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}
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}
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func (c *VolumeStatusCommand) csiStatus(client *api.Client, id string) int {
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// Invoke list mode if no volume id
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if id == "" {
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2021-03-23 13:11:18 +00:00
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return c.listVolumes(client)
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2020-03-06 15:09:10 +00:00
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}
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2021-03-18 18:32:40 +00:00
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// Prefix search for the volume
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vols, _, err := client.CSIVolumes().List(&api.QueryOptions{Prefix: id})
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error querying volumes: %s", err))
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return 1
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}
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if len(vols) > 1 {
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out, err := c.csiFormatVolumes(vols)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error formatting: %s", err))
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return 1
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}
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c.Ui.Error(fmt.Sprintf("Prefix matched multiple volumes\n\n%s", out))
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return 1
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}
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if len(vols) == 0 {
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c.Ui.Error(fmt.Sprintf("No volumes(s) with prefix or ID %q found", id))
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return 1
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}
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id = vols[0].ID
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2020-03-06 15:09:10 +00:00
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// Try querying the volume
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vol, _, err := client.CSIVolumes().Info(id, nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error querying volume: %s", err))
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return 1
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}
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str, err := c.formatBasic(vol)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error formatting volume: %s", err))
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return 1
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}
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c.Ui.Output(str)
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return 0
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}
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2021-03-23 13:11:18 +00:00
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func (c *VolumeStatusCommand) listVolumes(client *api.Client) int {
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c.csiBanner()
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vols, _, err := client.CSIVolumes().List(nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error querying volumes: %s", err))
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return 1
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}
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if len(vols) == 0 {
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// No output if we have no volumes
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c.Ui.Error("No CSI volumes")
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} else {
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str, err := c.csiFormatVolumes(vols)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error formatting: %s", err))
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return 1
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}
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c.Ui.Output(str)
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}
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if !c.verbose {
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return 0
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}
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plugins, _, err := client.CSIPlugins().List(nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error querying CSI plugins: %s", err))
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return 1
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}
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if len(plugins) == 0 {
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return 0 // No more output if we have no plugins
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}
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var code int
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q := &api.QueryOptions{PerPage: 30} // TODO: tune page size
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2021-04-07 13:48:40 +00:00
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NEXT_PLUGIN:
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2021-03-23 13:11:18 +00:00
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for _, plugin := range plugins {
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if !plugin.ControllerRequired || plugin.ControllersHealthy < 1 {
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continue // only controller plugins can support this query
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}
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for {
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externalList, _, err := client.CSIVolumes().ListExternal(plugin.ID, q)
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2021-04-08 15:13:36 +00:00
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if err != nil && !errors.Is(err, io.EOF) {
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2021-03-23 13:11:18 +00:00
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c.Ui.Error(fmt.Sprintf(
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"Error querying CSI external volumes for plugin %q: %s", plugin.ID, err))
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// we'll stop querying this plugin, but there may be more to
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// query, so report and set the error code but move on to the
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// next plugin
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code = 1
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2021-04-07 13:48:40 +00:00
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continue NEXT_PLUGIN
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2021-03-23 13:11:18 +00:00
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}
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2021-04-08 15:13:36 +00:00
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if externalList == nil || len(externalList.Volumes) == 0 {
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// several plugins return EOF once you hit the end of the page,
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// rather than an empty list
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continue NEXT_PLUGIN
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}
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2021-03-23 13:11:18 +00:00
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rows := []string{}
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2021-04-08 15:13:36 +00:00
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rows[0] = "External ID|Condition|Nodes"
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for i, v := range externalList.Volumes {
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condition := "OK"
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if v.IsAbnormal {
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condition = fmt.Sprintf("Abnormal (%v)", v.Status)
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2021-03-23 13:11:18 +00:00
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}
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2021-04-08 15:13:36 +00:00
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rows[i+1] = fmt.Sprintf("%s|%s|%s",
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limit(v.ExternalID, c.length),
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limit(condition, 20),
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strings.Join(v.PublishedExternalNodeIDs, ","),
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)
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2021-03-23 13:11:18 +00:00
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}
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2021-04-08 15:13:36 +00:00
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c.Ui.Output(formatList(rows))
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2021-03-23 13:11:18 +00:00
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q.NextToken = externalList.NextToken
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if q.NextToken == "" {
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break
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}
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// we can't know the shape of arbitrarily-sized lists of volumes,
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// so break after each page
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c.Ui.Output("...")
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}
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}
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return code
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}
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2020-03-06 15:09:10 +00:00
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func (c *VolumeStatusCommand) csiFormatVolumes(vols []*api.CSIVolumeListStub) (string, error) {
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// Sort the output by volume id
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sort.Slice(vols, func(i, j int) bool { return vols[i].ID < vols[j].ID })
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if c.json || len(c.template) > 0 {
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out, err := Format(c.json, c.template, vols)
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if err != nil {
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return "", fmt.Errorf("format error: %v", err)
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}
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return out, nil
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}
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2021-03-18 18:32:40 +00:00
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return csiFormatSortedVolumes(vols, c.length)
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}
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// Format the volumes, assumes that we're already sorted by volume ID
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func csiFormatSortedVolumes(vols []*api.CSIVolumeListStub, length int) (string, error) {
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2020-03-06 15:09:10 +00:00
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rows := make([]string, len(vols)+1)
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rows[0] = "ID|Name|Plugin ID|Schedulable|Access Mode"
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for i, v := range vols {
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rows[i+1] = fmt.Sprintf("%s|%s|%s|%t|%s",
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limit(v.ID, length),
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2020-03-06 15:09:10 +00:00
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v.Name,
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v.PluginID,
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v.Schedulable,
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v.AccessMode,
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)
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}
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return formatList(rows), nil
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}
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func (c *VolumeStatusCommand) formatBasic(vol *api.CSIVolume) (string, error) {
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if c.json || len(c.template) > 0 {
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out, err := Format(c.json, c.template, vol)
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if err != nil {
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return "", fmt.Errorf("format error: %v", err)
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}
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return out, nil
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}
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output := []string{
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fmt.Sprintf("ID|%s", vol.ID),
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fmt.Sprintf("Name|%s", vol.Name),
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fmt.Sprintf("External ID|%s", vol.ExternalID),
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2020-03-09 13:57:59 +00:00
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fmt.Sprintf("Plugin ID|%s", vol.PluginID),
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fmt.Sprintf("Provider|%s", vol.Provider),
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fmt.Sprintf("Version|%s", vol.ProviderVersion),
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2020-03-06 15:09:10 +00:00
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fmt.Sprintf("Schedulable|%t", vol.Schedulable),
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fmt.Sprintf("Controllers Healthy|%d", vol.ControllersHealthy),
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fmt.Sprintf("Controllers Expected|%d", vol.ControllersExpected),
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fmt.Sprintf("Nodes Healthy|%d", vol.NodesHealthy),
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fmt.Sprintf("Nodes Expected|%d", vol.NodesExpected),
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fmt.Sprintf("Access Mode|%s", vol.AccessMode),
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fmt.Sprintf("Attachment Mode|%s", vol.AttachmentMode),
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2020-03-23 17:55:26 +00:00
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fmt.Sprintf("Mount Options|%s", csiVolMountOption(vol.MountOptions, nil)),
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2020-03-06 15:09:10 +00:00
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fmt.Sprintf("Namespace|%s", vol.Namespace),
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}
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// Exit early
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if c.short {
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return formatKV(output), nil
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}
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// Format the allocs
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banner := c.Colorize().Color("\n[bold]Allocations[reset]")
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allocs := formatAllocListStubs(vol.Allocations, c.verbose, c.length)
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full := []string{formatKV(output), banner, allocs}
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return strings.Join(full, "\n"), nil
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}
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func (c *VolumeStatusCommand) formatTopologies(vol *api.CSIVolume) string {
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var out []string
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// Find the union of all the keys
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head := map[string]string{}
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for _, t := range vol.Topologies {
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for key := range t.Segments {
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if _, ok := head[key]; !ok {
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head[key] = ""
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}
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}
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}
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// Append the header
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var line []string
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for key := range head {
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line = append(line, key)
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}
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out = append(out, strings.Join(line, " "))
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// Append each topology
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for _, t := range vol.Topologies {
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line = []string{}
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for key := range head {
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line = append(line, t.Segments[key])
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}
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out = append(out, strings.Join(line, " "))
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}
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return strings.Join(out, "\n")
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}
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2020-03-23 17:55:26 +00:00
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func csiVolMountOption(volume, request *api.CSIMountOptions) string {
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var req, opts *structs.CSIMountOptions
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if request != nil {
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req = &structs.CSIMountOptions{
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FSType: request.FSType,
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MountFlags: request.MountFlags,
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}
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}
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if volume == nil {
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opts = req
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} else {
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opts = &structs.CSIMountOptions{
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FSType: volume.FSType,
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MountFlags: volume.MountFlags,
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}
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opts.Merge(req)
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}
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if opts == nil {
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return "<none>"
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}
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var out string
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if opts.FSType != "" {
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out = fmt.Sprintf("fs_type: %s", opts.FSType)
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}
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if len(opts.MountFlags) > 0 {
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out = fmt.Sprintf("%s flags: %s", out, strings.Join(opts.MountFlags, ", "))
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}
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return out
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}
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