pve-go/node.go
2020-06-03 23:45:54 +02:00

112 lines
2.3 KiB
Go

// Copyright (C) 2020 Marius Schellenberger
package pve
import (
"context"
"errors"
"fmt"
)
var (
ErrNodesOffline = errors.New("one or more nodes are offline")
ErrNodesNotSearched = errors.New("one or more nodes could not be searched")
ErrEmptyID = errors.New("id is empty")
)
type NodeStatus string
const (
NodeStatusOnline NodeStatus = "online"
NodeStatusOffline NodeStatus = "offline"
NodeStatusUnknown NodeStatus = "unknown"
)
type Node struct {
Name string `json:"node"`
Status NodeStatus `json:"status"`
}
type NodeList []*Node
type NodeClient struct {
client *Client
}
func (c *NodeClient) List(ctx context.Context) (nl NodeList, err error) {
req, err := c.client.NewRequest(ctx, "GET", "/nodes", nil)
if err != nil {
return
}
_, err = c.client.Do(req, &nl)
return
}
func (c *NodeClient) ListServers(ctx context.Context, n *Node) (sl ServerList, err error) {
req, err := c.client.NewRequest(ctx, "GET", fmt.Sprintf("/nodes/%s/qemu", n.Name), nil)
if err != nil {
return
}
_, err = c.client.Do(req, &sl)
if err == nil {
for i := range sl {
sl[i].Node = n.Name
}
}
return
}
func (c *NodeClient) FindServer(ctx context.Context, name, id string) (s *Server, err error) {
nl, err := c.List(ctx)
if err != nil {
return
}
nodeOffline := false
nodeNotSearched := false
for _, node := range nl {
if node.Status != NodeStatusOnline {
nodeOffline = true
continue
}
sl, err := c.ListServers(ctx, node)
if err != nil {
nodeNotSearched = true
continue
}
for _, s := range sl {
if id != "" && s.ID == id {
return s, nil
}
if name != "" && s.Name == name {
return s, nil
}
}
}
if nodeOffline {
return nil, ErrNodesOffline
}
if nodeNotSearched {
return nil, ErrNodesNotSearched
}
return nil, ErrServerNotFound
}
func (c *NodeClient) FindServerByName(ctx context.Context, name string) (s *Server, err error) {
return c.FindServer(ctx, name, "")
}
func (c *NodeClient) FindServerByID(ctx context.Context, id string) (s *Server, err error) {
if id == "" {
err = ErrEmptyID
return
}
return c.FindServer(ctx, "", id)
}
func (c *NodeClient) FindServerByURL(ctx context.Context, url string) (s *Server, err error) {
_, _, id, err := ParseURL(url)
if err != nil {
return
}
return c.FindServerByID(ctx, id)
}