-
Notifications
You must be signed in to change notification settings - Fork 0
/
config.go
212 lines (204 loc) · 8.35 KB
/
config.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
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
package main
import (
"flag"
"log"
"os"
"regexp"
"strconv"
"strings"
)
const (
KEYPROXY_KEYSTONE = "https://auth-dev.iotplatform.telefonica.com:15001"
KEYPROXY_PODCONFIG = "configs/pod.yaml"
KEYPROXY_STATIC = "podstatic"
KEYPROXY_TEMPLATES = "templates"
KEYPROXY_NAMESPACE = ""
KEYPROXY_REDIRECT = "/editor"
KEYPROXY_FORWARDEDPROTO = "https"
KEYPROXY_PORT = 8080
KEYPROXY_PODPORT = 9390
KEYPROXY_PROFILEPORT = 6060
KEYPROXY_PODLIFETIME = 120
KEYPROXY_SESSIONLIFETIME = 60
KEYPROXY_REQUESTTIMEOUT = 5
KEYPROXY_IDLETIMEOUT = 300
KEYPROXY_SHUTDOWN = 30
KEYPROXY_THREADS = 10
KEYPROXY_LABEL = "undefined"
KEYPROXY_SIGNINGKEY = ""
KEYPROXY_OFFLINE = ""
KEYPROXY_CORS = ""
CUSTOM_LABEL_NAME = "keyproxy/release"
)
type Config struct {
KeystoneURL string
PodConfig string
Redirect string
StaticFolder string
TemplateFolder string
ForwardedProto string
Port int
PodPort int
PrefixPort map[string]int
ProfilePort int
Namespace string
SigningKey string
PodLifetime int
SessionLifetime int
RequestTimeout int
IdleTimeout int
GracefulShutdown int
Threads int
Labels map[string]string
Cors []string
OfflineUsername string
OfflineDomain string
OfflinePassword string
}
func GetConfig() *Config {
config := &Config{}
flag.StringVar(&config.KeystoneURL, "keystone", LookupEnvOrString("KEYPROXY_KEYSTONE", KEYPROXY_KEYSTONE), "Keystone URL")
flag.StringVar(&config.PodConfig, "podconfig", LookupEnvOrString("KEYPROXY_PODCONFIG", KEYPROXY_PODCONFIG), "Path to pod config file")
flag.StringVar(&config.StaticFolder, "static", LookupEnvOrString("KEYPROXY_STATIC", KEYPROXY_STATIC), "Path to static assets folder")
flag.StringVar(&config.TemplateFolder, "templates", LookupEnvOrString("KEYPROXY_TEMPLATES", KEYPROXY_TEMPLATES), "Path to templates folder")
flag.StringVar(&config.Namespace, "namespace", LookupEnvOrString("KEYPROXY_NAMESPACE", KEYPROXY_NAMESPACE), "Kubernetes namespace")
flag.StringVar(&config.SigningKey, "signingkey", LookupEnvOrString("KEYPROXY_SIGNINGKEY", KEYPROXY_SIGNINGKEY), "Signing key for cookies")
flag.StringVar(&config.Redirect, "redirect", LookupEnvOrString("KEYPROXY_REDIRECT", KEYPROXY_REDIRECT), "Redirect requests for '/' to this path")
flag.StringVar(&config.ForwardedProto, "forwardedproto", LookupEnvOrString("KEYPROXY_FORWARDEDPROTO", KEYPROXY_FORWARDEDPROTO), "Value for X-Forwarded-Proto header")
var label string
flag.StringVar(&label, "label", LookupEnvOrString("KEYPROXY_LABEL", KEYPROXY_LABEL), "Value for 'keyproxy/release' label")
flag.IntVar(&config.Port, "port", LookupEnvOrInt("KEYPROXY_PORT", KEYPROXY_PORT), "TCP listen port")
flag.IntVar(&config.PodPort, "podport", LookupEnvOrInt("KEYPROXY_PODPORT", KEYPROXY_PODPORT), "Backend pod port to forward requests to, by default")
flag.IntVar(&config.ProfilePort, "profileport", LookupEnvOrInt("KEYPROXY_PROFILEPORT", KEYPROXY_PROFILEPORT), "Port backend pod listens to")
flag.IntVar(&config.PodLifetime, "podlifetime", LookupEnvOrInt("KEYPROXY_PODLIFETIME", KEYPROXY_PODLIFETIME), "Pod Lifetime (minutes)")
flag.IntVar(&config.SessionLifetime, "sessionlifetime", LookupEnvOrInt("KEYPROXY_SESSIONLIFETIME", KEYPROXY_SESSIONLIFETIME), "Session lifetime (minutes)")
flag.IntVar(&config.RequestTimeout, "requesttimeout", LookupEnvOrInt("KEYPROXY_REQUESTTIMEOUT", KEYPROXY_REQUESTTIMEOUT), "HTTP Request timeout (client or server) (seconds)")
flag.IntVar(&config.IdleTimeout, "idletimeout", LookupEnvOrInt("KEYPROXY_IDLETIMEOUT", KEYPROXY_IDLETIMEOUT), "HTTP idle server timeout (seconds)")
flag.IntVar(&config.GracefulShutdown, "shutdown", LookupEnvOrInt("KEYPROXY_SHUTDOWN", KEYPROXY_SHUTDOWN), "Graceful shutdown (seconds)")
flag.IntVar(&config.Threads, "threads", LookupEnvOrInt("KEYPROXY_THREADS", KEYPROXY_THREADS), "Number of controller threads")
var offline string
flag.StringVar(&offline, "offline", LookupEnvOrString("KEYPROXY_OFFLINE", KEYPROXY_OFFLINE), "Offline mode credentials (`username@domain:password`) for testing")
var cors string
flag.StringVar(&cors, "cors", LookupEnvOrString("KEYPROXY_CORS", KEYPROXY_CORS), "Comma-separated list of allowed CORS origins")
var prefixes string
flag.StringVar(&prefixes, "prefixes", LookupEnvOrString("KEYPROXY_PREFIXES", ""), "Comma-separated list of url_prefix:port_number for additional ports the pod listens to")
flag.Parse()
if config.ForwardedProto != "http" && config.ForwardedProto != "https" {
panic("ForwardedProto must be either 'http' or 'https'")
}
if config.Port <= 1024 || config.Port > 65535 {
panic("Port must be between 1024 and 65535")
}
if config.ProfilePort <= 1024 || config.ProfilePort > 65535 {
panic("ProfilePort must be between 1024 and 65535")
}
if config.Port == config.ProfilePort {
panic("Port and ProfilePort must be different")
}
if config.PodPort <= 0 || config.PodPort > 65535 {
panic("Backend Pod port must be between 0 and 65535")
}
if config.SigningKey != "" && len(config.SigningKey) < 32 {
panic("Signing key must be at least 32 characters long")
}
if config.PodLifetime < 30 || config.PodLifetime > 28800 {
panic("Pod lifetime must be between 30 and 28800 minutes")
}
if config.SessionLifetime < 10 || config.SessionLifetime > 120 {
panic("Session lifetime must be between 10 and 120 minutes")
}
if config.RequestTimeout < 1 || config.RequestTimeout > 30 {
panic("Request timeout must be between 1 and 30 seconds")
}
if config.IdleTimeout < 2*config.RequestTimeout || config.IdleTimeout > 3600 {
panic("Idle timeout must be between (2 * requesttimeout) and 3600 seconds")
}
if config.GracefulShutdown < 5 || config.GracefulShutdown > 60 {
panic("Graceful shutdown must be between 5 and 60 seconds")
}
if config.Threads <= 0 || config.Threads > 1000 {
panic("Threads must be between 1 and 1000")
}
if len(label) < 4 || len(label) > 32 {
panic("Label must be between 4 and 32 characters")
}
validLabel := regexp.MustCompile("^[a-zA-Z0-9\\-]+$")
if !validLabel.Match([]byte(label)) {
panic("Label must be include only alphanumeric characters and '-'")
}
config.Labels = make(map[string]string)
config.Labels[CUSTOM_LABEL_NAME] = label
origins := make([]string, 0, 8)
if cors != "" {
for _, origin := range strings.Split(cors, ",") {
trimmed := strings.TrimSpace(origin)
if trimmed != "" {
origins = append(origins, trimmed)
}
}
}
config.Cors = origins
if offline != "" {
var username, domain, password string
if index := strings.Index(offline, "@"); index > 0 {
username = strings.TrimSpace(offline[:index])
offline = offline[index+1:]
if index = strings.Index(offline, ":"); index > 0 {
domain = strings.TrimSpace(offline[:index])
password = strings.TrimSpace(offline[index+1:])
}
}
if username == "" || domain == "" || password == "" {
panic("Invalid offline credentials " + offline + ". Use `username@domain:password` format")
}
config.OfflineUsername = username
config.OfflinePassword = password
config.OfflineDomain = domain
}
config.PrefixPort = make(map[string]int)
prefixes = strings.TrimSpace(prefixes)
if prefixes != "" {
for _, forward := range strings.Split(prefixes, ",") {
parts := strings.Split(strings.TrimSpace(forward), ":")
if len(parts) != 2 {
panic("Invalid forward path:port specification " + forward)
}
path := strings.TrimSpace(parts[0])
if path == "" {
panic("Invalid path in path:port specification " + forward)
}
port, err := strconv.Atoi(strings.TrimSpace(parts[1]))
if err != nil {
panic("Invalid port number in path:port specification " + forward + ": " + err.Error())
}
config.PrefixPort[path] = port
}
}
return config
}
func LookupEnvOrString(key string, defaultVal string) string {
if val, ok := os.LookupEnv(key); ok {
return val
}
return defaultVal
}
func LookupEnvOrInt(key string, defaultVal int) int {
if val, ok := os.LookupEnv(key); ok {
v, err := strconv.Atoi(val)
if err != nil {
log.Fatalf("LookupEnvOrInt[%s]: %v", key, err)
}
return v
}
return defaultVal
}
func LookupEnvOrBool(key string) bool {
if val, ok := os.LookupEnv(key); ok {
for _, truish := range []string{"1", "y", "yes", "t", "true", "s", "si", "sí", "on"} {
if strings.EqualFold(val, truish) {
return true
}
}
}
return false
}