kafka、zookeeper、flink测试环境、docker

1、kafka环境单点

根据官网版本说明(3.6.0)发布，zookeeper依旧在使用状态，预期在4.0.0大版本的时候彻底抛弃zookeeper使用KRaft(Apache Kafka)官方并给出了zk迁移KR的文档

2、使用docker启动单点kafka

    1、首先将kafka启动命令，存储为.service结尾的系统服务文件，并指定存储在/etc/systemd/system/目录下

    2、kafk.service文件

[Unit]
Description=kafka
After=docker.service
Requires=docker.service
[Service]
TimeoutStartSec=0
ExecStartPre=-/usr/bin/docker rm kafka
ExecStart=/usr/bin/
        docker run \
        --name kafka \
        -v /etc/localtime:/etc/localtime:ro \
        --log-driver=none \
        -e HOSTNAME=kafka \
        -p 9092:9092 \
        -e KAFKA_BROKER_ID=1 \
        -e KAFKA_CFG_LISTENERS=PLAINTEXT://:9092 \
        -e KAFKA_CFG_ADVERTISED_LISTENERS=PLAINTEXT://127.0.0.1:9092 \
        -e KAFKA_CFG_ZOOKEEPER_CONNECT=zookeeper:2181 \
        -e ALLOW_PLAINTEXT_LISTENER=yes \
       wurstmeister/kafka #kafka版本哦
ExecStop=/usr/bin/docker kill kafka
Restart=always
RestartSec=5
[Install]
WantedBy=multi-user.target

     3、使用linux系统命令进行启动

            systemctl start kafka.service

            systemctl logs kafka

            systemctl status kafka

systemctl status kafka报错：/etc/systemd/system/kafka.service:14: Missing '='.

2、zookeeper

docker run -d --name zookeeper -p 2181:2181 -t wurstmeister/zookeeper

使用idea连接zookeeper：

    1、下载zookeeper插件        ![](https://img-blog.csdnimg.cn/bade2f088bd64ea1b9172dd94aa1225a.png)

    2、添加IP和端口

3、flink

docker run -itd --name=jobmanager --publish 8081:8081 --network flink-network --env FLINK_PROPERTIES="jobmanager.rpc.address: jobmanager" flink:1.13.5-scala_2.12 jobmanager

docker run -itd --name=taskmanager --network flink-network --env FLINK_PROPERTIES="jobmanager.rpc.address: jobmanager" flink:1.13.5-scala_2.12 taskmanager

外部访问：xxx.xxx.xxx.xxx:8081