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1. Pull the nacos image and start
docker pull nacos/nacos-server
2. Start the nacos command
docker run -d --name nacos -p 8848:8848 -e PREFER_HOST_MODE=hostname -e MODE=standalone nacos/nacos-server
So far, we can use nacos service, UI address: http://:8848/nacos account number: nacos password: nacos
The above method is the easiest way to start, but there is a slight flaw in this case, all the nacos metadata will be stored inside the container. If the container is migrated, the nacos source data will no longer exist, so we usually save the nacos metadata in mysql. The configuration method is attached below:
3. Modify the configuration file
#1 查看docker容器，nacos启动成功
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8149bca96437 nacos/nacos-server "bin/docker-startup.…" 4 minutes ago Up About a minute 0.0.0.0:8848->8848/tcp nacos
#2 进入容器
docker exec -it 8149bca96437 /bin/bash
#3 修改 conf/application.properties 内容如下：
vi conf/application.properties
Database script
nacos-db.sql
Replace the content of application.properties with
spring.datasource.platform=mysql
db.num=1
db.url.0=jdbc:mysql://<ip>:<port>/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
db.user=root
db.password=password
4. Exit the container
exit
5. Restart the container
docker restart 8149bca96437
6. View the startup log
docker logs 容器ID
7. Linux memory is insufficient
docker run -e JVM_XMS=256m -e JVM_XMX=256m --env MODE=standalone --name nacos -d -p 8848:8848 nacos/nacos-server