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* Add Singlestore db-client Signed-off-by: ashraful <[email protected]> Co-authored-by: raihankhan <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,187 @@ | ||
| /* | ||
| Copyright AppsCode Inc. and Contributors | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package singlestore | ||
|
|
||
| import ( | ||
| "context" | ||
| "database/sql" | ||
| "fmt" | ||
|
|
||
| _ "github.com/go-sql-driver/mysql" | ||
| core "k8s.io/api/core/v1" | ||
| "k8s.io/klog/v2" | ||
| api "kubedb.dev/apimachinery/apis/kubedb/v1alpha2" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
| "xorm.io/xorm" | ||
| ) | ||
|
|
||
| type KubeDBClientBuilder struct { | ||
| kc client.Client | ||
| db *api.Singlestore | ||
| url string | ||
| podName string | ||
| ctx context.Context | ||
| } | ||
|
|
||
| func NewKubeDBClientBuilder(kc client.Client, db *api.Singlestore) *KubeDBClientBuilder { | ||
| return &KubeDBClientBuilder{ | ||
| kc: kc, | ||
| db: db, | ||
| } | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) WithURL(url string) *KubeDBClientBuilder { | ||
| o.url = url | ||
| return o | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) WithPod(podName string) *KubeDBClientBuilder { | ||
| o.podName = podName | ||
| return o | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) WithContext(ctx context.Context) *KubeDBClientBuilder { | ||
| o.ctx = ctx | ||
| return o | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) GetSinglestoreClient() (*Client, error) { | ||
| if o.ctx == nil { | ||
| o.ctx = context.Background() | ||
| } | ||
|
|
||
| connector, err := o.getConnectionString() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // connect to database | ||
| db, err := sql.Open("mysql", connector) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // ping to database to check the connection | ||
| if err := db.PingContext(o.ctx); err != nil { | ||
| closeErr := db.Close() | ||
| if closeErr != nil { | ||
| klog.Errorf("Failed to close client. error: %v", closeErr) | ||
| } | ||
| return nil, err | ||
| } | ||
|
|
||
| return &Client{db}, nil | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) GetSinglestoreXormClient() (*XormClient, error) { | ||
| if o.ctx == nil { | ||
| o.ctx = context.Background() | ||
| } | ||
| connector, err := o.getConnectionString() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| engine, err := xorm.NewEngine("mysql", connector) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| _, err = engine.Query("SELECT 1") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| engine.SetDefaultContext(o.ctx) | ||
| return &XormClient{ | ||
| engine, | ||
| }, nil | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) getURL() string { | ||
| return fmt.Sprintf("%s.%s.%s.svc", o.podName, o.db.GoverningServiceName(), o.db.Namespace) | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) getSinglestoreRootCredentials() (string, string, error) { | ||
| db := o.db | ||
| var secretName string | ||
| if db.Spec.AuthSecret != nil { | ||
| secretName = db.GetAuthSecretName() | ||
| } | ||
| var secret core.Secret | ||
| err := o.kc.Get(o.ctx, client.ObjectKey{Namespace: db.Namespace, Name: secretName}, &secret) | ||
| if err != nil { | ||
| return "", "", err | ||
| } | ||
| user, ok := secret.Data[core.BasicAuthUsernameKey] | ||
| if !ok { | ||
| return "", "", fmt.Errorf("DB root user is not set") | ||
| } | ||
| pass, ok := secret.Data[core.BasicAuthPasswordKey] | ||
| if !ok { | ||
| return "", "", fmt.Errorf("DB root password is not set") | ||
| } | ||
| return string(user), string(pass), nil | ||
| } | ||
|
|
||
| func (o *KubeDBClientBuilder) getConnectionString() (string, error) { | ||
| user, pass, err := o.getSinglestoreRootCredentials() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| if o.podName != "" { | ||
| o.url = o.getURL() | ||
| } | ||
|
|
||
| tlsConfig := "" | ||
| /*if o.db.Spec.RequireSSL && o.db.Spec.TLS != nil { | ||
| // get client-secret | ||
| var clientSecret core.Secret | ||
| err := o.kc.Get(o.ctx, client.ObjectKey{Namespace: o.db.GetNamespace(), Name: o.db.GetCertSecretName(api.MySQLClientCert)}, &clientSecret) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| cacrt := clientSecret.Data["ca.crt"] | ||
| certPool := x509.NewCertPool() | ||
| certPool.AppendCertsFromPEM(cacrt) | ||
| crt := clientSecret.Data["tls.crt"] | ||
| key := clientSecret.Data["tls.key"] | ||
| cert, err := tls.X509KeyPair(crt, key) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| var clientCert []tls.Certificate | ||
| clientCert = append(clientCert, cert) | ||
| // tls custom setup | ||
| if o.db.Spec.RequireSSL { | ||
| err = sql_driver.RegisterTLSConfig(api.MySQLTLSConfigCustom, &tls.Config{ | ||
| RootCAs: certPool, | ||
| Certificates: clientCert, | ||
| }) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| tlsConfig = fmt.Sprintf("tls=%s", api.MySQLTLSConfigCustom) | ||
| } else { | ||
| tlsConfig = fmt.Sprintf("tls=%s", api.MySQLTLSConfigSkipVerify) | ||
| } | ||
| }*/ | ||
|
|
||
| connector := fmt.Sprintf("%v:%v@tcp(%s:%d)/%s?%s", user, pass, o.url, 3306, "memsql", tlsConfig) | ||
| return connector, nil | ||
| } |
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