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dex/storage/etcd/config.go

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package etcd
import (
"time"
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"go.etcd.io/etcd/clientv3"
"go.etcd.io/etcd/clientv3/namespace"
"go.etcd.io/etcd/pkg/transport"
"github.com/dexidp/dex/pkg/log"
"github.com/dexidp/dex/storage"
)
var defaultDialTimeout = 2 * time.Second
// SSL represents SSL options for etcd databases.
type SSL struct {
ServerName string `json:"serverName" yaml:"serverName"`
CAFile string `json:"caFile" yaml:"caFile"`
KeyFile string `json:"keyFile" yaml:"keyFile"`
CertFile string `json:"certFile" yaml:"certFile"`
}
// Etcd options for connecting to etcd databases.
// If you are using a shared etcd cluster for storage, it might be useful to
// configure an etcd namespace either via Namespace field or using `etcd grpc-proxy
// --namespace=<prefix>`
type Etcd struct {
Endpoints []string `json:"endpoints" yaml:"endpoints"`
Namespace string `json:"namespace" yaml:"namespace"`
Username string `json:"username" yaml:"username"`
Password string `json:"password" yaml:"password"`
SSL SSL `json:"ssl" yaml:"ssl"`
}
// Open creates a new storage implementation backed by Etcd
func (p *Etcd) Open(logger log.Logger) (storage.Storage, error) {
return p.open(logger)
}
func (p *Etcd) open(logger log.Logger) (*conn, error) {
cfg := clientv3.Config{
Endpoints: p.Endpoints,
DialTimeout: defaultDialTimeout,
Username: p.Username,
Password: p.Password,
}
var cfgtls *transport.TLSInfo
tlsinfo := transport.TLSInfo{}
if p.SSL.CertFile != "" {
tlsinfo.CertFile = p.SSL.CertFile
cfgtls = &tlsinfo
}
if p.SSL.KeyFile != "" {
tlsinfo.KeyFile = p.SSL.KeyFile
cfgtls = &tlsinfo
}
if p.SSL.CAFile != "" {
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tlsinfo.TrustedCAFile = p.SSL.CAFile
cfgtls = &tlsinfo
}
if p.SSL.ServerName != "" {
tlsinfo.ServerName = p.SSL.ServerName
cfgtls = &tlsinfo
}
if cfgtls != nil {
clientTLS, err := cfgtls.ClientConfig()
if err != nil {
return nil, err
}
cfg.TLS = clientTLS
}
db, err := clientv3.New(cfg)
if err != nil {
return nil, err
}
if len(p.Namespace) > 0 {
db.KV = namespace.NewKV(db.KV, p.Namespace)
}
c := &conn{
db: db,
logger: logger,
}
return c, nil
}