feat: Add ent-based postgres storage

Signed-off-by: m.nabokikh <maksim.nabokikh@flant.com>
This commit is contained in:
m.nabokikh 2021-05-14 23:14:38 +04:00
parent 81c4dc7994
commit 19884d92ac
14 changed files with 401 additions and 20 deletions

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@ -182,14 +182,17 @@ var (
_ StorageConfig = (*sql.Postgres)(nil)
_ StorageConfig = (*sql.MySQL)(nil)
_ StorageConfig = (*ent.SQLite3)(nil)
_ StorageConfig = (*ent.Postgres)(nil)
)
func getORMBasedSQLiteStorage() StorageConfig {
switch os.Getenv("DEX_ENT_ENABLED") {
case "true", "yes":
return new(ent.SQLite3)
default:
return new(sql.SQLite3)
func getORMBasedSQLStorage(normal, entBased StorageConfig) func() StorageConfig {
return func() StorageConfig {
switch os.Getenv("DEX_ENT_ENABLED") {
case "true", "yes":
return entBased
default:
return normal
}
}
}
@ -197,9 +200,9 @@ var storages = map[string]func() StorageConfig{
"etcd": func() StorageConfig { return new(etcd.Etcd) },
"kubernetes": func() StorageConfig { return new(kubernetes.Config) },
"memory": func() StorageConfig { return new(memory.Config) },
"postgres": func() StorageConfig { return new(sql.Postgres) },
"mysql": func() StorageConfig { return new(sql.MySQL) },
"sqlite3": getORMBasedSQLiteStorage,
"sqlite3": getORMBasedSQLStorage(&sql.SQLite3{}, &ent.SQLite3{}),
"postgres": getORMBasedSQLStorage(&sql.Postgres{}, &ent.Postgres{}),
}
// isExpandEnvEnabled returns if os.ExpandEnv should be used for each storage and connector config.

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@ -58,7 +58,7 @@ func (d *Database) DeleteAuthRequest(id string) error {
// UpdateAuthRequest changes an auth request by id using an updater function and saves it to the database.
func (d *Database) UpdateAuthRequest(id string, updater func(old storage.AuthRequest) (storage.AuthRequest, error)) error {
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return fmt.Errorf("update auth request tx: %w", err)
}

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@ -57,7 +57,7 @@ func (d *Database) DeleteClient(id string) error {
// UpdateClient changes an oauth2 client by id using an updater function and saves it to the database.
func (d *Database) UpdateClient(id string, updater func(old storage.Client) (storage.Client, error)) error {
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update client tx: %w", err)
}

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@ -55,7 +55,7 @@ func (d *Database) DeleteConnector(id string) error {
// UpdateConnector changes a connector by id using an updater function and saves it to the database.
func (d *Database) UpdateConnector(id string, updater func(old storage.Connector) (storage.Connector, error)) error {
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update connector tx: %w", err)
}

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@ -37,7 +37,7 @@ func (d *Database) GetDeviceToken(deviceCode string) (storage.DeviceToken, error
// UpdateDeviceToken changes a token by device code using an updater function and saves it to the database.
func (d *Database) UpdateDeviceToken(deviceCode string, updater func(old storage.DeviceToken) (storage.DeviceToken, error)) error {
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update device token tx: %w", err)
}

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@ -26,7 +26,7 @@ func (d *Database) GetKeys() (storage.Keys, error) {
func (d *Database) UpdateKeys(updater func(old storage.Keys) (storage.Keys, error)) error {
firstUpdate := false
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update keys tx: %w", err)
}

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@ -2,6 +2,7 @@ package client
import (
"context"
"database/sql"
"hash"
"time"
@ -17,7 +18,9 @@ import (
var _ storage.Storage = (*Database)(nil)
type Database struct {
client *db.Client
client *db.Client
txOptions *sql.TxOptions
hasher func() hash.Hash
}
@ -44,6 +47,13 @@ func WithHasher(h func() hash.Hash) func(*Database) {
}
}
// WithTxIsolationLevel sets correct isolation level for database transactions.
func WithTxIsolationLevel(level sql.IsolationLevel) func(*Database) {
return func(s *Database) {
s.txOptions = &sql.TxOptions{Isolation: level}
}
}
// Schema exposes migration schema to perform migrations.
func (d *Database) Schema() *migrate.Schema {
return d.client.Schema
@ -54,6 +64,11 @@ func (d *Database) Close() error {
return d.client.Close()
}
// BeginTx is a wrapper to begin transaction with defined options.
func (d *Database) BeginTx(ctx context.Context) (*db.Tx, error) {
return d.client.BeginTx(ctx, d.txOptions)
}
// GarbageCollect removes expired entities from the database.
func (d *Database) GarbageCollect(now time.Time) (storage.GCResult, error) {
result := storage.GCResult{}

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@ -55,7 +55,7 @@ func (d *Database) DeleteOfflineSessions(userID, connID string) error {
func (d *Database) UpdateOfflineSessions(userID string, connID string, updater func(s storage.OfflineSessions) (storage.OfflineSessions, error)) error {
id := offlineSessionID(userID, connID, d.hasher)
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update offline session tx: %w", err)
}

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@ -64,7 +64,7 @@ func (d *Database) DeletePassword(email string) error {
func (d *Database) UpdatePassword(email string, updater func(old storage.Password) (storage.Password, error)) error {
email = strings.ToLower(email)
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update connector tx: %w", err)
}

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@ -67,7 +67,7 @@ func (d *Database) DeleteRefresh(id string) error {
// UpdateRefreshToken changes a refresh token by id using an updater function and saves it to the database.
func (d *Database) UpdateRefreshToken(id string, updater func(old storage.RefreshToken) (storage.RefreshToken, error)) error {
tx, err := d.client.Tx(context.TODO())
tx, err := d.BeginTx(context.TODO())
if err != nil {
return convertDBError("update refresh token tx: %w", err)
}

155
storage/ent/postgres.go Normal file
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@ -0,0 +1,155 @@
package ent
import (
"context"
"crypto/sha256"
"database/sql"
"fmt"
"net"
"regexp"
"strconv"
"strings"
"time"
// Register postgres driver.
_ "github.com/lib/pq"
entSQL "entgo.io/ent/dialect/sql"
"github.com/dexidp/dex/pkg/log"
"github.com/dexidp/dex/storage"
"github.com/dexidp/dex/storage/ent/client"
"github.com/dexidp/dex/storage/ent/db"
)
// nolint
const (
// postgres SSL modes
pgSSLDisable = "disable"
pgSSLRequire = "require"
pgSSLVerifyCA = "verify-ca"
pgSSLVerifyFull = "verify-full"
)
// Postgres options for creating an SQL db.
type Postgres struct {
NetworkDB
SSL SSL `json:"ssl"`
}
// Open always returns a new in sqlite3 storage.
func (p *Postgres) Open(logger log.Logger) (storage.Storage, error) {
logger.Debug("experimental ent-based storage driver is enabled")
drv, err := p.driver()
if err != nil {
return nil, err
}
databaseClient := client.NewDatabase(
client.WithClient(db.NewClient(db.Driver(drv))),
client.WithHasher(sha256.New),
// The default behavior for Postgres transactions is consistent reads, not consistent writes.
// For each transaction opened, ensure it has the correct isolation level.
//
// See: https://www.postgresql.org/docs/9.3/static/sql-set-transaction.html
client.WithTxIsolationLevel(sql.LevelSerializable),
)
if err := databaseClient.Schema().Create(context.TODO()); err != nil {
return nil, err
}
return databaseClient, nil
}
func (p *Postgres) driver() (*entSQL.Driver, error) {
drv, err := entSQL.Open("postgres", p.dsn())
if err != nil {
return nil, err
}
// set database/sql tunables if configured
if p.ConnMaxLifetime != 0 {
drv.DB().SetConnMaxLifetime(time.Duration(p.ConnMaxLifetime) * time.Second)
}
if p.MaxIdleConns == 0 {
drv.DB().SetMaxIdleConns(5)
} else {
drv.DB().SetMaxIdleConns(p.MaxIdleConns)
}
if p.MaxOpenConns == 0 {
drv.DB().SetMaxOpenConns(5)
} else {
drv.DB().SetMaxOpenConns(p.MaxOpenConns)
}
return drv, nil
}
func (p *Postgres) dsn() string {
// detect host:port for backwards-compatibility
host, port, err := net.SplitHostPort(p.Host)
if err != nil {
// not host:port, probably unix socket or bare address
host = p.Host
if p.Port != 0 {
port = strconv.Itoa(int(p.Port))
}
}
var parameters []string
addParam := func(key, val string) {
parameters = append(parameters, fmt.Sprintf("%s=%s", key, val))
}
addParam("connect_timeout", strconv.Itoa(p.ConnectionTimeout))
if host != "" {
addParam("host", dataSourceStr(host))
}
if port != "" {
addParam("port", port)
}
if p.User != "" {
addParam("user", dataSourceStr(p.User))
}
if p.Password != "" {
addParam("password", dataSourceStr(p.Password))
}
if p.Database != "" {
addParam("dbname", dataSourceStr(p.Database))
}
if p.SSL.Mode == "" {
// Assume the strictest mode if unspecified.
addParam("sslmode", dataSourceStr(pgSSLVerifyFull))
} else {
addParam("sslmode", dataSourceStr(p.SSL.Mode))
}
if p.SSL.CAFile != "" {
addParam("sslrootcert", dataSourceStr(p.SSL.CAFile))
}
if p.SSL.CertFile != "" {
addParam("sslcert", dataSourceStr(p.SSL.CertFile))
}
if p.SSL.KeyFile != "" {
addParam("sslkey", dataSourceStr(p.SSL.KeyFile))
}
return strings.Join(parameters, " ")
}
var strEsc = regexp.MustCompile(`([\\'])`)
func dataSourceStr(str string) string {
return "'" + strEsc.ReplaceAllString(str, `\$1`) + "'"
}

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@ -0,0 +1,183 @@
package ent
import (
"os"
"strconv"
"testing"
"github.com/sirupsen/logrus"
"github.com/stretchr/testify/require"
"github.com/dexidp/dex/storage"
"github.com/dexidp/dex/storage/conformance"
)
func getenv(key, defaultVal string) string {
if val := os.Getenv(key); val != "" {
return val
}
return defaultVal
}
func postgresTestConfig(host string, port uint64) *Postgres {
return &Postgres{
NetworkDB: NetworkDB{
Database: getenv("DEX_POSTGRES_DATABASE", "postgres"),
User: getenv("DEX_POSTGRES_USER", "postgres"),
Password: getenv("DEX_POSTGRES_PASSWORD", "postgres"),
Host: host,
Port: uint16(port),
},
SSL: SSL{
Mode: pgSSLDisable, // Postgres container doesn't support SSL.
},
}
}
func newPostgresStorage(host string, port uint64) storage.Storage {
logger := &logrus.Logger{
Out: os.Stderr,
Formatter: &logrus.TextFormatter{DisableColors: true},
Level: logrus.DebugLevel,
}
cfg := postgresTestConfig(host, port)
s, err := cfg.Open(logger)
if err != nil {
panic(err)
}
return s
}
func TestPostgres(t *testing.T) {
host := os.Getenv("DEX_POSTGRES_HOST")
if host == "" {
t.Skipf("test environment variable DEX_POSTGRES_HOST not set, skipping")
}
port := uint64(5432)
if rawPort := os.Getenv("DEX_POSTGRES_PORT"); rawPort != "" {
var err error
port, err = strconv.ParseUint(rawPort, 10, 32)
require.NoError(t, err, "invalid postgres port %q: %s", rawPort, err)
}
newStorage := func() storage.Storage {
return newPostgresStorage(host, port)
}
conformance.RunTests(t, newStorage)
conformance.RunTransactionTests(t, newStorage)
}
func TestPostgresDSN(t *testing.T) {
tests := []struct {
name string
cfg *Postgres
desiredDSN string
}{
{
name: "Host port",
cfg: &Postgres{
NetworkDB: NetworkDB{
Host: "localhost",
Port: uint16(5432),
},
},
desiredDSN: "connect_timeout=0 host='localhost' port=5432 sslmode='verify-full'",
},
{
name: "Host with port",
cfg: &Postgres{
NetworkDB: NetworkDB{
Host: "localhost:5432",
},
},
desiredDSN: "connect_timeout=0 host='localhost' port=5432 sslmode='verify-full'",
},
{
name: "Host ipv6 with port",
cfg: &Postgres{
NetworkDB: NetworkDB{
Host: "[a:b:c:d]:5432",
},
},
desiredDSN: "connect_timeout=0 host='a:b:c:d' port=5432 sslmode='verify-full'",
},
{
name: "Credentials and timeout",
cfg: &Postgres{
NetworkDB: NetworkDB{
Database: "test",
User: "test",
Password: "test",
ConnectionTimeout: 5,
},
},
desiredDSN: "connect_timeout=5 user='test' password='test' dbname='test' sslmode='verify-full'",
},
{
name: "SSL",
cfg: &Postgres{
SSL: SSL{
Mode: pgSSLRequire,
CAFile: "/ca.crt",
KeyFile: "/cert.crt",
CertFile: "/cert.key",
},
},
desiredDSN: "connect_timeout=0 sslmode='require' sslrootcert='/ca.crt' sslcert='/cert.key' sslkey='/cert.crt'",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
require.Equal(t, tt.desiredDSN, tt.cfg.dsn())
})
}
}
func TestPostgresDriver(t *testing.T) {
host := os.Getenv("DEX_POSTGRES_HOST")
if host == "" {
t.Skipf("test environment variable DEX_POSTGRES_HOST not set, skipping")
}
port := uint64(5432)
if rawPort := os.Getenv("DEX_POSTGRES_PORT"); rawPort != "" {
var err error
port, err = strconv.ParseUint(rawPort, 10, 32)
require.NoError(t, err, "invalid postgres port %q: %s", rawPort, err)
}
tests := []struct {
name string
cfg func() *Postgres
desiredConns int
}{
{
name: "Defaults",
cfg: func() *Postgres { return postgresTestConfig(host, port) },
desiredConns: 5,
},
{
name: "Tune",
cfg: func() *Postgres {
cfg := postgresTestConfig(host, port)
cfg.MaxOpenConns = 101
return cfg
},
desiredConns: 101,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
drv, err := tt.cfg().driver()
require.NoError(t, err)
require.Equal(t, tt.desiredConns, drv.DB().Stats().MaxOpenConnections)
})
}
}

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@ -10,7 +10,7 @@ import (
"github.com/dexidp/dex/storage/conformance"
)
func newStorage() storage.Storage {
func newSQLiteStorage() storage.Storage {
logger := &logrus.Logger{
Out: os.Stderr,
Formatter: &logrus.TextFormatter{DisableColors: true},
@ -26,6 +26,6 @@ func newStorage() storage.Storage {
}
func TestSQLite3(t *testing.T) {
conformance.RunTests(t, newStorage)
conformance.RunTransactionTests(t, newStorage)
conformance.RunTests(t, newSQLiteStorage)
conformance.RunTransactionTests(t, newSQLiteStorage)
}

25
storage/ent/types.go Normal file
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@ -0,0 +1,25 @@
package ent
// NetworkDB contains options common to SQL databases accessed over network.
type NetworkDB struct {
Database string
User string
Password string
Host string
Port uint16
ConnectionTimeout int // Seconds
MaxOpenConns int // default: 5
MaxIdleConns int // default: 5
ConnMaxLifetime int // Seconds, default: not set
}
// SSL represents SSL options for network databases.
type SSL struct {
Mode string
CAFile string
// Files for client auth.
KeyFile string
CertFile string
}