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config.go
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config.go
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package config
import (
"encoding/json"
"os"
"github.com/kelseyhightower/envconfig"
"github.com/robertlestak/vault-secret-sync/api/v1alpha1"
"github.com/robertlestak/vault-secret-sync/internal/backend"
"github.com/robertlestak/vault-secret-sync/internal/queue"
"github.com/robertlestak/vault-secret-sync/internal/srvutils"
log "github.com/sirupsen/logrus"
"gopkg.in/yaml.v3"
)
var (
Config ConfigFile
)
type EventServer struct {
Enabled *bool `json:"enabled" yaml:"enabled"`
Port int `json:"port" yaml:"port"`
Security *ServerSecurity `json:"security" yaml:"security"`
Dedupe *bool `json:"dedupe" yaml:"dedupe"`
}
type QueueConfig struct {
Type queue.QueueType `json:"type" yaml:"type"`
Params map[string]any `json:"params" yaml:"params"`
}
type BackendConfig struct {
Type backend.BackendType `json:"type" yaml:"type"`
Params map[string]any `json:"params" yaml:"params"`
}
type OperatorConfig struct {
Enabled *bool `json:"enabled" yaml:"enabled"`
Backend *BackendConfig `json:"backend" yaml:"backend"`
WorkerPoolSize int `json:"workerPoolSize" yaml:"workerPoolSize"`
NumSubscriptions int `json:"numSubscriptions" yaml:"numSubscriptions"`
}
type EmailNotificationConfig struct {
Host string `json:"host" yaml:"host"`
Port int `json:"port" yaml:"port"`
Username string `json:"username" yaml:"username"`
Password string `json:"password" yaml:"password"`
From string `json:"from" yaml:"from"`
To string `json:"to" yaml:"to"`
Subject string `json:"subject" yaml:"subject"`
Body string `json:"body" yaml:"body"`
InsecureSkipVerify bool `json:"insecureSkipVerify" yaml:"insecureSkipVerify"`
}
type SlackNotificationConfig struct {
URL string `json:"url" yaml:"url"`
Message string `json:"message" yaml:"message"`
}
type WebhookNotificationConfig struct {
URL string `json:"url" yaml:"url"`
Method string `json:"method" yaml:"method"`
Headers map[string]string `json:"headers" yaml:"headers"`
Body string `json:"body" yaml:"body"`
ExcludeBody bool `json:"excludeBody" yaml:"excludeBody"`
}
type NotificationsConfig struct {
Email *EmailNotificationConfig `json:"email" yaml:"email"`
Slack *SlackNotificationConfig `json:"slack" yaml:"slack"`
Webhook *WebhookNotificationConfig `json:"webhook" yaml:"webhook"`
}
type ServerSecurity struct {
Enabled *bool `json:"enabled" yaml:"enabled"`
Token string `json:"token" yaml:"token"`
TLS *srvutils.TLSConfig `json:"tls" yaml:"tls"`
}
type MetricsServer struct {
Port int `json:"port" yaml:"port"`
Security *ServerSecurity `json:"security" yaml:"security"`
}
type ConfigFile struct {
LogLevel string `json:"logLevel" yaml:"logLevel"`
Events *EventServer `json:"events" yaml:"events"`
Operator *OperatorConfig `json:"operator" yaml:"operator"`
Stores *v1alpha1.StoreConfig `json:"stores" yaml:"stores"`
Queue *QueueConfig `json:"queue" yaml:"queue"`
Metrics *MetricsServer `json:"metrics" yaml:"metrics"`
Notifications *NotificationsConfig `json:"notifications" yaml:"notifications"`
}
func LoadFile(f string) error {
l := log.WithFields(log.Fields{
"action": "LoadFile",
"file": f,
"pkg": "config",
})
l.Trace("start")
defer l.Trace("end")
cfp := f
// if the file path doesn't exist, try default at /config/config.yaml
if _, err := os.Stat(cfp); os.IsNotExist(err) {
cfp = "/config/config.yaml"
}
// if file doesn't exit, fall back to other methods
if _, err := os.Stat(f); os.IsNotExist(err) {
l.Debugf("config file not found: %s", f)
if err := Config.SetFromEnv(); err != nil {
return err
}
if err := Config.SetDefaults(); err != nil {
return err
}
return nil
}
fd, err := os.Open(f)
if err != nil {
return err
}
defer fd.Close()
// try to unmarshal the file as yaml, if that fails, try as json
yd := yaml.NewDecoder(fd)
if err := yd.Decode(&Config); err != nil {
jd := json.NewDecoder(fd)
if err := jd.Decode(&Config); err != nil {
return err
}
}
if err := Config.SetFromEnv(); err != nil {
return err
}
if err := Config.SetDefaults(); err != nil {
return err
}
// marshall it back to yaml for logging
jd, err := yaml.Marshal(Config)
if err != nil {
return err
}
l.Debugf("config from file: %s", string(jd))
return nil
}
func (c *ConfigFile) SetFromEnv() error {
l := log.WithFields(log.Fields{
"action": "SetFromEnv",
"pkg": "config",
})
l.Trace("start")
defer l.Trace("end")
err := envconfig.Process("vss", c)
if err != nil {
l.Error(err)
return err
}
l.Debugf("config from env: %+v", c)
return nil
}
func (c *ConfigFile) SetDefaults() error {
l := log.WithFields(log.Fields{
"action": "SetDefaults",
"pkg": "config",
})
l.Trace("start")
defer l.Trace("end")
if c.LogLevel == "" {
c.LogLevel = "info"
}
if c.Operator == nil || c.Operator.Backend == nil {
c.Operator = &OperatorConfig{
Backend: &BackendConfig{
Type: backend.BackendTypeKubernetes,
},
}
}
if c.Operator.Backend == nil || c.Operator.Backend.Type == "" {
c.Operator.Backend = &BackendConfig{
Type: backend.BackendTypeKubernetes,
}
}
if c.Queue == nil || c.Queue.Type == "" {
c.Queue = &QueueConfig{
Type: queue.QueueTypeMemory,
}
}
return nil
}