2. Configure alicloud
3. Get image
There are many online tutorials in these three steps, so I won't write them.
Because each version may bring some changes, I'll talk about the version I use
Docker Desktop 4.1.1
Windows 10 professional 21H1
4. Configure docker-compose.yml
If it is too troublesome to configure dockers one by one to do zk clustering, docker has a solution. A cluster can be built through a configuration file.
Create a configuration file named docker-compose.yml.
The docker command will automatically recognize the file name. If I can't afford to use this name, I haven't tried it. Those who are interested can figure it out for themselves.
For example, the number of clusters we want to create is three
version: '3.1' services: zoo1: image: zookeeper restart: always hostname: zoo1 container_name: zoo1 ports: - 2181:2181 environment: ZOO_MY_ID: 1 ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181 zoo2: image: zookeeper restart: always hostname: zoo2 container_name: zoo2 ports: - 2182:2181 environment: ZOO_MY_ID: 2 ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181 zoo3: image: zookeeper restart: always hostname: zoo3 container_name: zoo3 ports: - 2183:2181 environment: ZOO_MY_ID: 3 ZOO_SERVERS: server.1=zoo1:2888:3888;2181 server.2=zoo2:2888:3888;2181 server.3=zoo3:2888:3888;2181
There's a big pit here. Be careful
Different versions of zk, zoom_ Servers are also different, and some need to be added; 2181, some do not need to be added.
The information found on the Internet does not need to be added before zookeeper 3.5, but after zookeeper 3.5.
Please refer to zookeeper's homepage in docker hub for specific writing: https://hub.docker.com/_/zookeeper
If you report the following error, it's probably this; 2181 reason
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Client port not found in static config file. Looking in dynamic config file. grep: : No such file or directory Client port not found. Terminating.
Execute the command in the file directory of docker-compose.yml
Docker compose up - D - D does not print logs
Results after execution
PS C:\xxxxxxxx> docker-compose up -d Creating network "desktop_default" with the default driver Creating zoo1 ... done Creating zoo3 ... done Creating zoo2 ... done
Run docker ps to check whether the addition is successful. If you see the name in your configuration file, I have zoo1, zoo2 and zoo3, it indicates that the startup is successful.
6. Verify it
The ps command sees several services. Whether the service is started successfully or not, you still need to connect to the service to have a look
6.1 viewing zookeeper status
Connect to zoo1 and check the status of the service
docker exec -it zoo1 bash ./bin/zkServer.sh status
PS C:\xxxxxxxx> docker exec -it zoo1 bash ./bin/zkServer.sh status ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Client port found: 2181. Client address: localhost. Client SSL: false. Mode: follower
Mode: follower follower node
Mode: leader node
6.2 try connecting to a zk
docker exec -it zoo1 /bin/bash
./bin/zkCli.sh -server 127.0.0.1:2181
Execute the command casually to see if it succeeds
If you can return normally, you're done