Update getting-started.adoc - set zookeeper cli port

[csautter]

In my case the default port was not correct, leading to an error:

 % kubectl exec -i -t simple-zk-server-primary-0 -- bin/zkCli.sh                        
Defaulted container "zookeeper" out of: zookeeper, prepare (init)
Connecting to localhost:2181
2025-04-17 12:28:12,064 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:zookeeper.version=3.9.3-${mvngit.commit.id}, built on 2025-03-25 10:20 UTC
2025-04-17 12:28:12,065 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:host.name=simple-zk-server-primary-0.simple-zk-server-primary.default.svc.cluster.local
2025-04-17 12:28:12,065 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.version=17.0.14
2025-04-17 12:28:12,065 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.vendor=Eclipse Adoptium
2025-04-17 12:28:12,065 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.home=/usr/lib/jvm/temurin-17-jre
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.class.path=/stackable/apache-zookeeper-3.9.3-bin/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/classes:/stackable/apache-zookeeper-3.9.3-bin/bin/../zookeeper-server/target/classes:/stackable/apache-zookeeper-3.9.3-bin/bin/../build/classes:/stackable/apache-zookeeper-3.9.3-bin/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/*.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../zookeeper-server/target/lib/*.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../build/lib/*.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/zookeeper-prometheus-metrics-3.9.3.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/zookeeper-jute-3.9.3.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/zookeeper-3.9.3.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/snappy-java-1.1.10.5.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/slf4j-api-1.7.30.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/simpleclient_servlet-0.9.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/simpleclient_hotspot-0.9.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/simpleclient_common-0.9.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/simpleclient-0.9.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-transport-native-unix-common-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-transport-native-epoll-4.1.113.Final-linux-x86_64.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-transport-classes-epoll-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-transport-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-classes-2.0.66.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-boringssl-static-2.0.66.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-boringssl-static-2.0.66.Final-windows-x86_64.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-boringssl-static-2.0.66.Final-osx-x86_64.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-boringssl-static-2.0.66.Final-osx-aarch_64.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-boringssl-static-2.0.66.Final-linux-x86_64.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-tcnative-boringssl-static-2.0.66.Final-linux-aarch_64.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-resolver-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-handler-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-common-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-codec-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/netty-buffer-4.1.113.Final.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/metrics-core-4.1.12.1.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/logback-core-1.2.13.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/logback-classic-1.2.13.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jline-2.14.6.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-util-ajax-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-util-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-servlet-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-server-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-security-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-io-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jetty-http-9.4.56.v20240826.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/javax.servlet-api-3.1.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jackson-databind-2.15.2.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jackson-core-2.15.2.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/jackson-annotations-2.15.2.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/commons-io-2.17.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/commons-cli-1.5.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../lib/audience-annotations-0.12.0.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../zookeeper-*.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../zookeeper-server/src/main/resources/lib/*.jar:/stackable/apache-zookeeper-3.9.3-bin/bin/../conf:
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.library.path=/usr/java/packages/lib:/usr/lib64:/lib64:/lib:/usr/lib
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.io.tmpdir=/tmp
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:java.compiler=<NA>
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:os.name=Linux
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:os.arch=aarch64
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:os.version=6.12.13-200.fc41.aarch64
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:user.name=stackable
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:user.home=/stackable
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:user.dir=/stackable/apache-zookeeper-3.9.3-bin
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:os.memory.free=222MB
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:os.memory.max=256MB
2025-04-17 12:28:12,066 [myid:] - INFO  [main:o.a.z.Environment@98] - Client environment:os.memory.total=234MB
2025-04-17 12:28:12,067 [myid:] - INFO  [main:o.a.z.ZooKeeper@637] - Initiating client connection, connectString=localhost:2181 sessionTimeout=30000 watcher=org.apache.zookeeper.ZooKeeperMain$MyWatcher@3aeaafa6
2025-04-17 12:28:12,070 [myid:] - INFO  [main:o.a.z.c.X509Util@88] - Setting -D jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated TLS renegotiation
2025-04-17 12:28:12,377 [myid:] - INFO  [main:o.a.z.c.X509Util@110] - Default TLS protocol is TLSv1.3, supported TLS protocols are [TLSv1.3, TLSv1.2, TLSv1.1, TLSv1, SSLv3, SSLv2Hello]
2025-04-17 12:28:12,380 [myid:] - INFO  [main:o.a.z.ClientCnxnSocket@235] - jute.maxbuffer value is 1048575 Bytes
2025-04-17 12:28:12,383 [myid:] - INFO  [main:o.a.z.ClientCnxn@1748] - zookeeper.request.timeout value is 0. feature enabled=false
Welcome to ZooKeeper!
2025-04-17 12:28:12,385 [myid:localhost:2181] - INFO  [main-SendThread(localhost:2181):o.a.z.ClientCnxn$SendThread@1171] - Opening socket connection to server localhost/127.0.0.1:2181.
2025-04-17 12:28:12,385 [myid:localhost:2181] - INFO  [main-SendThread(localhost:2181):o.a.z.ClientCnxn$SendThread@1173] - SASL config status: Will not attempt to authenticate using SASL (unknown error)
2025-04-17 12:28:12,447 [myid:localhost:2181] - WARN  [main-SendThread(localhost:2181):o.a.z.ClientCnxn$SendThread@1302] - Session 0x0 for server localhost/127.0.0.1:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException or SessionTimeoutException.
java.net.ConnectException: Connection refused
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Unknown Source)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
	at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:344)
	at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1291)
JLine support is enabled
[zk: localhost:2181(CONNECTING) 0] 2025-04-17 12:28:13,549 [myid:localhost:2181] - INFO  [main-SendThread(localhost:2181):o.a.z.ClientCnxn$SendThread@1171] - Opening socket connection to server localhost/[0:0:0:0:0:0:0:1]:2181.
2025-04-17 12:28:13,550 [myid:localhost:2181] - INFO  [main-SendThread(localhost:2181):o.a.z.ClientCnxn$SendThread@1173] - SASL config status: Will not attempt to authenticate using SASL (unknown error)
2025-04-17 12:28:13,551 [myid:localhost:2181] - WARN  [main-SendThread(localhost:2181):o.a.z.ClientCnxn$SendThread@1302] - Session 0x0 for server localhost/[0:0:0:0:0:0:0:1]:2181, Closing socket connection. Attempting reconnect except it is a SessionExpiredException or SessionTimeoutException.
java.net.ConnectException: Connection refused
	at java.base/sun.nio.ch.Net.pollConnect(Native Method)
	at java.base/sun.nio.ch.Net.pollConnectNow(Unknown Source)
	at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
	at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:344)
	at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1291)
command terminated with exit code 130

[stackable-bot]

All committers have signed the CLA.

[Techassi]

Thank you for your contribution!

I have left two comments suggestion two small changes.

[Techassi]

note: There is a typo which needs correcting.

Suggested change

	We can test ZooKeeper by running the ZooKeeper CLI shell. The easiest way to do this is to run the CLI shell on the pod that is running ZooKeeper. It might be necassary to determine and set the port.
	We can test ZooKeeper by running the ZooKeeper CLI shell. The easiest way to do this is to run the CLI shell on the pod that is running ZooKeeper. It might be necessary to determine and set the port.

[Techassi]

note: Variables should be quoted when used in commands.

Suggested change

	kubectl exec -i -t simple-zk-server-primary-0 -- bin/zkCli.sh -server localhost:$PORT
	kubectl exec -i -t simple-zk-server-primary-0 -- bin/zkCli.sh -server "localhost:$PORT"