一直怀疑是权限的问题，然后上网一查，说是ubuntu出来了一个叫做apparmor的东西，需要修改相关配置；
可以直接使用docker拉起mysql
root@yong:~# mkdir -p /data/mysql/conf
root@yong:~# mkdir -p /data/mysql/logs
root@yong:~# mkdir -p /data/mysql/data
root@yong:~# nerdctl run \
> -p 12345:3306 \
> --name mysql \
> -v /data/mysql/conf:/etc/mysql/conf.d \
> -v /data/mysql/logs:/logs \
> -v /data/mysql/data:/var/lib/mysql \
> -e MYSQL_ROOT_PASSWORD=123456 \
> -d mysql:8.0.30 --default-authentication-plugin=mysql_native_password
containerd使用的是iptables做转发
所以，可以在iptables的规则中看到监听的端口：
root@yong:~# iptables -t nat -nvL |grep 12345
0 0 CNI-HOSTPORT-SETMARK tcp -- * * 10.4.0.0/24 0.0.0.0/0 tcp dpt:12345
6 360 CNI-HOSTPORT-SETMARK tcp -- * * 127.0.0.1 0.0.0.0/0 tcp dpt:12345
6 360 DNAT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:12345 to:10.4.0.23:3306
6 360 CNI-DN-d27383cdf2e36edb47788 tcp -- * * 0.0.0.0/0 0.0.0.0/0 /* dnat name: "bridge" id: "default-9653ed1f0d70495de2515df8c03ad1c09c3b68fc9d34809b5d9eae899cef84ad" */ multiport dports 12345
部署nacos server
root@yong:/data# tree -L 2 . ├── mysql │ ├── conf │ ├── data │ ├── logs │ └── tmp └── nacos └── logs 启动nacos
nerdctl run \
--name nacos -d \
-p 8848:8848 \
-p 9848:9848 \
-p 9849:9849 \
--privileged=true \
--restart=always \
-e JVM_XMS=256m \
-e JVM_XMX=256m \
-e MODE=standalone \
-e PREFER_HOST_MODE=hostname \
-e NACOS_REPLICAS=1 \
-e MODE=standalone \
-e SPRING_DATASOURCE_PLATFORM=mysql \
-e MYSQL_SERVICE_HOST=172.60.20.193 \
-e MYSQL_SERVICE_PORT=12345 \
-e MYSQL_SERVICE_USER=root \
-e MYSQL_SERVICE_PASSWORD=123456 \
-e MYSQL_SERVICE_DB_NAME=nacos-dev \
-v /data/nacos/logs:/home/nacos/logs \
nacos/nacos-server:v2.2.0
错误处理
2023-01-03 18:45:05.982 ERROR 1763492 --- [ main] c.a.cloud.nacos.discovery.NacosWatch : namingService subscribe failed, properties:NacosDiscoveryProperties{serverAddr='127.0.0.1:18848', username='nacos', password='nacos', endpoint='', namespace='dev', watchDelay=30000, logName='', service='demo-server-a', weight=1.0, clusterName='DEFAULT', group='DEFAULT_GROUP', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='172.60.20.193', networkInterface='', port=-1, secure=false, accessKey='', secretKey='', heartBeatInterval=null, heartBeatTimeout=null, ipDeleteTimeout=null, instanceEnabled=true, ephemeral=true, failureToleranceEnabled=false}, ipDeleteTimeout=null, failFast=true}
com.alibaba.nacos.api.exception.NacosException: Client not connected, current status:STARTING
at com.alibaba.nacos.common.remote.client.RpcClient.request(RpcClient.java:639) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.common.remote.client.RpcClient.request(RpcClient.java:619) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.requestToServer(NamingGrpcClientProxy.java:356) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.doSubscribe(NamingGrpcClientProxy.java:310) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.naming.remote.gprc.NamingGrpcClientProxy.subscribe(NamingGrpcClientProxy.java:295) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.naming.remote.NamingClientProxyDelegate.subscribe(NamingClientProxyDelegate.java:173) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.nacos.client.naming.NacosNamingService.subscribe(NacosNamingService.java:414) ~[nacos-client-2.2.0.jar:na]
at com.alibaba.cloud.nacos.discovery.NacosWatch.start(NacosWatch.java:133) ~[spring-cloud-starter-alibaba-nacos-discovery-2021.0.1.0.jar:2021.0.1.0]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) ~[spring-context-5.3.24.jar:5.3.24]
at java.base/java.lang.Iterable.forEach(Iterable.java:75) ~[na:na]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:935) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:586) ~[spring-context-5.3.24.jar:5.3.24]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:147) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:731) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:408) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1303) ~[spring-boot-2.7.7.jar:2.7.7]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1292) ~[spring-boot-2.7.7.jar:2.7.7]
at com.example.demopromclient.DemoPromClientApplication.main(DemoPromClientApplication.java:10) ~[classes/:na]
2023-01-03 18:45:05.999 INFO 1763492 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
需要映射出来9848和9849端口，否则会出现如上错误：
