1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
package control
import (
"encoding/json"
"errors"
"os"
"path/filepath"
"sort"
"time"
)
type NodeState struct {
NodeID string `json:"node_id"`
BootstrapStatus string `json:"bootstrap_status"`
LastBootstrapAt *time.Time `json:"last_bootstrap_at,omitempty"`
LastHealthCheckAt *time.Time `json:"last_health_check_at,omitempty"`
LastDNSSyncAt *time.Time `json:"last_dns_sync_at,omitempty"`
PublicHost string `json:"public_host,omitempty"`
Services []ServiceStatus `json:"services,omitempty"`
Metadata map[string]any `json:"metadata,omitempty"`
}
type ServiceStatus struct {
Type string `json:"type"`
Status string `json:"status"`
Port int `json:"port"`
}
func LoadNodeState(dir, nodeID string) (*NodeState, error) {
data, err := os.ReadFile(filepath.Join(dir, nodeID+".json"))
if err != nil {
return nil, err
}
var state NodeState
if err := json.Unmarshal(data, &state); err != nil {
return nil, err
}
return &state, nil
}
func SaveNodeState(dir string, state NodeState) error {
if err := os.MkdirAll(dir, 0o755); err != nil {
return err
}
sort.Slice(state.Services, func(i, j int) bool {
return state.Services[i].Type < state.Services[j].Type
})
data, err := json.MarshalIndent(state, "", " ")
if err != nil {
return err
}
data = append(data, '\n')
tmpPath := filepath.Join(dir, state.NodeID+".json.tmp")
finalPath := filepath.Join(dir, state.NodeID+".json")
if err := os.WriteFile(tmpPath, data, 0o600); err != nil {
return err
}
return os.Rename(tmpPath, finalPath)
}
func DeleteNodeState(dir, nodeID string) error {
err := os.Remove(filepath.Join(dir, nodeID+".json"))
if errors.Is(err, os.ErrNotExist) {
return nil
}
return err
}
|
