mirror of
https://github.com/cubefs/cubefs.git
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122 lines
3.5 KiB
Go
122 lines
3.5 KiB
Go
// Copyright 2023 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package objectnode
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import (
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"crypto/tls"
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"errors"
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"strings"
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"time"
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"github.com/Shopify/sarama"
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)
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type KafkaConfig struct {
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Brokers string `json:"brokers"`
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Topic string `json:"topic"`
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Version string `json:"version"`
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Username string `json:"username"`
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Password string `json:"password"`
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TLS struct {
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Enable bool `json:"enable"`
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SkipVerify bool `json:"skip_verify"`
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ClientAuth int `json:"client_auth"`
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ClientKey string `json:"client_key"`
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ClientCert string `json:"client_cert"`
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RootCAFile string `json:"root_ca_file"`
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} `json:"tls"`
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TimeoutMs int64 `json:"timeout_ms"`
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}
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// FixConfig validates and fixes the configuration.
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func (c *KafkaConfig) FixConfig() error {
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if c.Brokers == "" || len(strings.Split(c.Brokers, ",")) <= 0 {
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return errors.New("kafka: no broker found")
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}
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if c.Topic == "" {
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return errors.New("kafka: no topic found")
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}
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if c.Version != "" {
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if _, err := sarama.ParseKafkaVersion(c.Version); err != nil {
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return err
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}
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}
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if c.Username != "" && c.Password == "" || c.Username == "" && c.Password != "" {
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return errors.New("kafka: username and password must be a pair")
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}
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if c.TLS.ClientKey != "" && c.TLS.ClientCert == "" || c.TLS.ClientKey == "" && c.TLS.ClientCert != "" {
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return errors.New("kafka: client_cert and client_key must be a pair")
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}
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if c.TimeoutMs <= 0 {
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c.TimeoutMs = 5000
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}
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return nil
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}
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// newSaramaConfig creates a new Sarama configuration.
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func (c *KafkaConfig) newSaramaConfig() (*sarama.Config, error) {
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cfg := sarama.NewConfig()
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cfg.Version = sarama.V2_1_0_0
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if c.Version != "" {
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version, err := sarama.ParseKafkaVersion(c.Version)
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if err != nil {
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return nil, err
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}
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cfg.Version = version
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}
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cfg.Metadata.Retry.Max = 2
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cfg.Metadata.RefreshFrequency = 120 * time.Second
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cfg.Producer.RequiredAcks = sarama.WaitForAll
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cfg.Producer.Return.Errors = true
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cfg.Producer.Return.Successes = true
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cfg.Producer.Timeout = time.Duration(c.TimeoutMs) * time.Millisecond
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if c.Username != "" && c.Password != "" {
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cfg.Net.SASL.Enable = true
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cfg.Net.SASL.User = c.Username
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cfg.Net.SASL.Password = c.Password
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}
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cfg.Net.KeepAlive = 60 * time.Second
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tslConfig, err := NewTLSConfig(c.TLS.ClientCert, c.TLS.ClientKey)
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if err != nil {
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return nil, err
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}
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cfg.Net.TLS.Enable = c.TLS.Enable
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cfg.Net.TLS.Config = tslConfig
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cfg.Net.TLS.Config.InsecureSkipVerify = c.TLS.SkipVerify
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cfg.Net.TLS.Config.ClientAuth = tls.ClientAuthType(c.TLS.ClientAuth)
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if c.TLS.RootCAFile != "" {
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if cfg.Net.TLS.Config.RootCAs, err = GetRootCAs(c.TLS.RootCAFile); err != nil {
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return nil, err
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}
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}
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return cfg, nil
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}
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// BuildSyncProducer creates a synchronous Kafka producer.
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// Make sure to call FixConfig before calling it to validate and fix the configuration.
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func (c *KafkaConfig) BuildSyncProducer() (sarama.SyncProducer, error) {
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cfg, err := c.newSaramaConfig()
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if err != nil {
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return nil, err
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}
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return sarama.NewSyncProducer(strings.Split(c.Brokers, ","), cfg)
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}
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