esctl/pkg/es/node.go

/*
Copyright © 2026 Thomas von Dein

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package es

import (
	"context"
	"fmt"
	"log/slog"

	"codeberg.org/scip/esctl/pkg/cfg"
)

func NodeList(conf *cfg.Config) error {
	// get nodes
	nodes, err := conf.DefaultCluster.ES.Cat.Nodes().Do(context.Background())
	if err != nil {
		return fmt.Errorf("failed to get nodes: %s", err)
	}

	slog.Debug("ES result", "nodes", nodes)

	table := NewTable(7, len(nodes))
	table.Addheaders("name", "ip", "load1m", "load5m", "load15m", "ram %", "heap %")

	for idx, node := range nodes {
		table.entries[idx] = []string{
			*node.Name,
			*node.Ip,
			*node.Load1M,
			*node.Load5M,
			*node.Load15M,
			node.RamPercent.(string),
			node.HeapPercent.(string),
		}
	}

	table.Sort()
	if err := table.PrintMarkdown(); err != nil {
		return err
	}

	return nil
}