115 lines
2.6 KiB
Go
115 lines
2.6 KiB
Go
package command
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import (
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"fmt"
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"strings"
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"github.com/ryanuber/columnize"
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)
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type NodeStatusCommand struct {
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Meta
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}
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func (c *NodeStatusCommand) Help() string {
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helpText := `
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Usage: nomad node-status [options] [node]
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Display status information about a given node. The list of nodes
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returned includes only nodes which jobs may be scheduled to, and
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includes status and other high-level information.
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If a node ID is passed, information for that specific node will
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be displayed. If no node ID's are passed, then a short-hand
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list of all nodes will be displayed.
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General Options:
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` + generalOptionsUsage()
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return strings.TrimSpace(helpText)
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}
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func (c *NodeStatusCommand) Synopsis() string {
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return "Display status information about nodes"
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}
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func (c *NodeStatusCommand) Run(args []string) int {
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flags := c.Meta.FlagSet("node-status", FlagSetClient)
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flags.Usage = func() { c.Ui.Output(c.Help()) }
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if err := flags.Parse(args); err != nil {
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return 1
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}
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// Check that we got either a single node or none
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args = flags.Args()
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if len(args) > 1 {
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c.Ui.Error(c.Help())
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return 1
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}
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// Get the HTTP client
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client, err := c.Meta.Client()
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error initializing client: %s", err))
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return 1
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}
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// Use list mode if no node name was provided
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if len(args) == 0 {
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// Query the node info
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nodes, _, err := client.Nodes().List(nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error querying node status: %s", err))
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return 1
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}
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// Return nothing if no nodes found
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if len(nodes) == 0 {
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return 0
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}
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// Format the nodes list
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out := make([]string, len(nodes)+1)
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out[0] = "ID|DC|Name|Class|Drain|Status"
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for i, node := range nodes {
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out[i+1] = fmt.Sprintf("%s|%s|%s|%s|%v|%s",
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node.ID,
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node.Datacenter,
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node.Name,
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node.NodeClass,
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node.Drain,
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node.Status)
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}
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// Dump the output
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c.Ui.Output(columnize.SimpleFormat(out))
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return 0
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}
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// Query the specific node
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nodeID := args[0]
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node, _, err := client.Nodes().Info(nodeID, nil)
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if err != nil {
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c.Ui.Error(fmt.Sprintf("Error querying node info: %s", err))
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return 1
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}
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// Format the output
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out := []string{
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fmt.Sprintf("ID | %s", node.ID),
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fmt.Sprintf("Name | %s", node.Name),
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fmt.Sprintf("Class | %s", node.NodeClass),
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fmt.Sprintf("Datacenter | %s", node.Datacenter),
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fmt.Sprintf("Drain | %v", node.Drain),
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fmt.Sprintf("Status | %s", node.Status),
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}
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// Make the column config so we can dump k = v pairs
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columnConf := columnize.DefaultConfig()
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columnConf.Glue = " = "
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// Dump the output
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c.Ui.Output(columnize.Format(out, columnConf))
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return 0
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}
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