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## Issue 模板
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docs/dev_guide/支持Kerberos认证的ZK.md
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## 支持Kerberos认证的ZK
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### 1、修改 KnowStreaming 代码
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代码位置:`src/main/java/com/xiaojukeji/know/streaming/km/persistence/kafka/KafkaAdminZKClient.java`
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将 `createZKClient` 的 `135行 的 false 改为 true
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修改完后重新进行打包编译,打包编译见:[打包编译](https://github.com/didi/KnowStreaming/blob/master/docs/install_guide/%E6%BA%90%E7%A0%81%E7%BC%96%E8%AF%91%E6%89%93%E5%8C%85%E6%89%8B%E5%86%8C.md
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)
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### 2、查看用户在ZK的ACL
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假设我们使用的用户是 `kafka` 这个用户。
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- 1、查看 server.properties 的配置的 zookeeper.connect 的地址;
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- 2、使用 `zkCli.sh -serve zookeeper.connect的地址` 登录到ZK页面;
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- 3、ZK页面上,执行命令 `getAcl /kafka` 查看 `kafka` 用户的权限;
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此时,我们可以看到如下信息:
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`kafka` 用户需要的权限是 `cdrwa`。如果用户没有 `cdrwa` 权限的话,需要创建用户并授权,授权命令为:`setAcl`
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### 3、创建Kerberos的keytab并修改 KnowStreaming 主机
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- 1、在 Kerberos 的域中创建 `kafka/_HOST` 的 `keytab`,并导出。例如:`kafka/dbs-kafka-test-8-53`;
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- 2、导出 keytab 后上传到安装 KS 的机器的 `/etc/keytab` 下;
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- 3、在 KS 机器上,执行 `kinit -kt zookeepe.keytab kafka/dbs-kafka-test-8-53` 看是否能进行 `Kerberos` 登录;
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- 4、可以登录后,配置 `/opt/zookeeper.jaas` 文件,例子如下:
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```sql
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Client {
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com.sun.security.auth.module.Krb5LoginModule required
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useKeyTab=true
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storeKey=false
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serviceName="zookeeper"
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keyTab="/etc/keytab/zookeeper.keytab"
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principal="kafka/dbs-kafka-test-8-53@XXX.XXX.XXX";
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};
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```
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- 5、需要配置 `KDC-Server` 对 `KnowStreaming` 的机器开通防火墙,并在KS的机器 `/etc/host/` 配置 `kdc-server` 的 `hostname`。并将 `krb5.conf` 导入到 `/etc` 下;
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### 4、修改 KnowStreaming 的配置
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- 1、在 `/usr/local/KnowStreaming/KnowStreaming/bin/startup.sh` 中的47行的JAVA_OPT中追加如下设置
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```bash
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-Dsun.security.krb5.debug=true -Djava.security.krb5.conf=/etc/krb5.conf -Djava.security.auth.login.config=/opt/zookeeper.jaas
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```
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- 2、重启KS集群后再 start.out 中看到如下信息,则证明Kerberos配置成功;
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### 5、补充说明
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- 1、多Kafka集群如果用的是一样的Kerberos域的话,只需在每个`ZK`中给`kafka`用户配置`crdwa`权限即可,这样集群初始化的时候`zkclient`是都可以认证;
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- 2、当前需要修改代码重新打包才可以支持,后续考虑通过页面支持Kerberos认证的ZK接入;
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- 3、多个Kerberos域暂时未适配;
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@@ -133,6 +133,8 @@ public class KafkaAdminZKClient extends AbstractClusterLoadedChangedHandler impl
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kafkaZkClient = KafkaZkClient.apply(
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zookeeperAddress,
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false,
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// 添加支持zk的Kerberos认证
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// true,
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Constant.DEFAULT_SESSION_TIMEOUT_UNIT_MS,
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Constant.DEFAULT_SESSION_TIMEOUT_UNIT_MS,
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5,
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