+1.

Is db only keep one? How to resolve the confliction of portaldb's table name and configdb's table name?

There are 2 tables App and AppNamespace exist in both ApolloPortalDB and ApolloConfigDB. Those in ApolloConfigDB are actually replicas since apollo-configservice/apollo-adminservice also need these data but they couldn't rely on apollo-portal.
So basically there is no conflict if we merge the tables into one database. But that might cause problems if someday the user wants to split the all in one deployment into distributed deployment.
So we may keep the 2 databases and configure 2 data sources in the all in one deployment?

I think
keep the 2 databases and configure 2 data sources

is better. User can split the deployment easier in the future.

How to resolve the config of 2 datasources?

Add new config's key and value to do it?

spring:
  datasource:
    todos:
      url: ...
      username: ...
      password: ...
      driverClassName: ...
    topics:
      url: ...
      username: ...
      password: ...
      driverClassName: ...

We might need to write some spring auto configuration for it?

Add new config's key and value to do it?

Yes, we need to configure different data source properties and jpa setup according to this tutorial .

我为了方便部署，直接使用了 1 个 allinone 开了 portal , 2 个 allinone 分别对应 2 个 env
但是遇到一个问题：

allinone 里提供的是容器内地址，导致 portal 没法接入
只能把 allinone docker-compose.yml 里的网络改成 host

另外，由于 allinone 内会把 portal config admin 都开起来。我只能把 demo.sh 魔改下，2 个脚本，分别启动 portal 和 config admin ,并在 docker-compose.yml 中挂接进去，类似这样：

volumes:
      - ./entrypoint.sh:/apollo-quick-start/demo.sh

我为了方便部署，直接使用了 1 个 allinone 开了 portal , 2 个 allinone 分别对应 2 个 env 但是遇到一个问题：

allinone 里提供的是容器内地址，导致 portal 没法接入 只能把 allinone docker-compose.yml 里的网络改成 host

另外，由于 allinone 内会把 portal config admin 都开起来。我只能把 demo.sh 魔改下，2 个脚本，分别启动 portal 和 config admin ,并在 docker-compose.yml 中挂接进去，类似这样：

volumes:
      - ./entrypoint.sh:/apollo-quick-start/demo.sh

看到文档里有说明，加了下面参数，终于可以不用 host 了：

environment:
      JAVA_OPTS: "-Deureka.instance.homePageUrl=http://172.26.144.21:8081"

使用 helm 通过模板生成 docker-compose yml 文件
只要填写必要的数据库信息、环境信息即可：
https://github.com/fananchong/apollo_helm_script

类似官方可以搞个 k8s 的