How to export the knowledge base from PC A (to import to PC B)?

[hc9701]

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1. Is this request related to a challenge you're experiencing? Tell me about your story.

I want to use Q&A format to make a dify-application (using Docker). I will edit many questions, answers and keywords.
I am using my laptop now, but in future I will migrate the knowledge base as well as the application to our server.
The application can be easily migrated by the DSL files.
But I wonder is there an easy way to migrate the knowledge base?

2. Additional context or comments

No response

[hc9701]

I think I might solve it and share some of my steps here. (The commands are not complete, you can complete them yourself.)
In ubuntu 24.04:
1.Go to the container using docker exec (you can use docker container ls to determine which container to go to)
2.export a sql file using pg_dump (psql can be used before to view the database you need to export)
3.use docker cp to copy the sql file in docker container to your own system(/home/user doesn't work in step 4, /tmp is OK).
4.import the sql file to postgreSQL.