forked from vmware-archive/atc
/
sqldb_workers.go
170 lines (140 loc) · 4.75 KB
/
sqldb_workers.go
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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
package db
import (
"database/sql"
"encoding/json"
"fmt"
"time"
)
var workerColumns = "EXTRACT(epoch FROM expires - NOW()), addr, baggageclaim_url, http_proxy_url, https_proxy_url, no_proxy, active_containers, resource_types, platform, tags, w.name as name, start_time, t.name as team_name, team_id"
var actualWorkerColumns = "EXTRACT(epoch FROM expires - NOW()), addr, baggageclaim_url, http_proxy_url, https_proxy_url, no_proxy, active_containers, resource_types, platform, tags, name, start_time"
func (db *SQLDB) Workers() ([]SavedWorker, error) {
rows, err := db.conn.Query(`
SELECT ` + workerColumns + `
FROM workers as w
LEFT OUTER JOIN teams as t ON t.id = w.team_id
WHERE (expires IS NULL OR expires > NOW())
`)
if err != nil {
return nil, err
}
defer rows.Close()
savedWorkers := []SavedWorker{}
for rows.Next() {
savedWorker, err := scanWorker(rows, true)
if err != nil {
return nil, err
}
savedWorkers = append(savedWorkers, savedWorker)
}
return savedWorkers, nil
}
func (db *SQLDB) GetWorker(name string) (SavedWorker, bool, error) {
savedWorker, err := scanWorker(db.conn.QueryRow(`
SELECT `+workerColumns+`
FROM workers as w
LEFT OUTER JOIN teams as t ON t.id = team_id
WHERE w.name = $1
AND (expires IS NULL OR expires > NOW())
`, name), true)
if err != nil {
if err == sql.ErrNoRows {
return SavedWorker{}, false, nil
}
return SavedWorker{}, false, err
}
return savedWorker, true, nil
}
func (db *SQLDB) SaveWorker(info WorkerInfo, ttl time.Duration) (SavedWorker, error) {
var savedWorker SavedWorker
resourceTypes, err := json.Marshal(info.ResourceTypes)
if err != nil {
return SavedWorker{}, err
}
tags, err := json.Marshal(info.Tags)
if err != nil {
return SavedWorker{}, err
}
expires := "NULL"
if ttl != 0 {
expires = fmt.Sprintf(`NOW() + '%d second'::INTERVAL`, int(ttl.Seconds()))
}
var teamID *int
if info.TeamID != 0 {
teamID = &info.TeamID
}
row := db.conn.QueryRow(`
UPDATE workers
SET addr = $1, expires = `+expires+`, active_containers = $2, resource_types = $3, platform = $4, tags = $5, baggageclaim_url = $6, http_proxy_url = $7, https_proxy_url = $8, no_proxy = $9, name = $10, start_time = $11, team_id = $12
WHERE name = $10 OR addr = $1
RETURNING `+actualWorkerColumns,
info.GardenAddr, info.ActiveContainers, resourceTypes, info.Platform, tags, info.BaggageclaimURL, info.HTTPProxyURL, info.HTTPSProxyURL, info.NoProxy, info.Name, info.StartTime, teamID)
savedWorker, err = scanWorker(row, false)
if err == sql.ErrNoRows {
row = db.conn.QueryRow(`
INSERT INTO workers (addr, expires, active_containers, resource_types, platform, tags, baggageclaim_url, http_proxy_url, https_proxy_url, no_proxy, name, start_time, team_id)
VALUES ($1, `+expires+`, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12)
RETURNING `+actualWorkerColumns,
info.GardenAddr, info.ActiveContainers, resourceTypes, info.Platform, tags, info.BaggageclaimURL, info.HTTPProxyURL, info.HTTPSProxyURL, info.NoProxy, info.Name, info.StartTime, teamID)
savedWorker, err = scanWorker(row, false)
}
if err != nil {
return SavedWorker{}, err
}
savedWorker.TeamID = info.TeamID
return savedWorker, nil
}
func (db *SQLDB) ReapExpiredWorkers() error {
_, err := db.conn.Exec(`
DELETE FROM workers
WHERE expires IS NOT NULL
AND expires < NOW()
`)
return err
}
func scanWorker(row scannable, scanTeam bool) (SavedWorker, error) {
info := SavedWorker{}
var ttlSeconds *float64
var resourceTypes []byte
var tags []byte
var httpProxyURL sql.NullString
var httpsProxyURL sql.NullString
var noProxy sql.NullString
var teamName sql.NullString
var teamID sql.NullInt64
var err error
if scanTeam {
err = row.Scan(&ttlSeconds, &info.GardenAddr, &info.BaggageclaimURL, &httpProxyURL, &httpsProxyURL, &noProxy, &info.ActiveContainers, &resourceTypes, &info.Platform, &tags, &info.Name, &info.StartTime, &teamName, &teamID)
} else {
err = row.Scan(&ttlSeconds, &info.GardenAddr, &info.BaggageclaimURL, &httpProxyURL, &httpsProxyURL, &noProxy, &info.ActiveContainers, &resourceTypes, &info.Platform, &tags, &info.Name, &info.StartTime)
}
if err != nil {
return SavedWorker{}, err
}
if ttlSeconds != nil {
info.ExpiresIn = time.Duration(*ttlSeconds) * time.Second
}
if httpProxyURL.Valid {
info.HTTPProxyURL = httpProxyURL.String
}
if httpsProxyURL.Valid {
info.HTTPSProxyURL = httpsProxyURL.String
}
if noProxy.Valid {
info.NoProxy = noProxy.String
}
if teamName.Valid {
info.TeamName = teamName.String
}
if teamID.Valid {
info.TeamID = int(teamID.Int64)
}
err = json.Unmarshal(resourceTypes, &info.ResourceTypes)
if err != nil {
return SavedWorker{}, err
}
err = json.Unmarshal(tags, &info.Tags)
if err != nil {
return SavedWorker{}, err
}
return info, nil
}