老師：

? ? ? ?學生照您的demo在本地寫了個ghost。但在docker-compose up 后運行始終存在如下錯誤，請問老師該如何解決？

? ? ? ?

ghost-app_1? | [2022-12-01 14:06:32] INFO Ctrl+C to shut down

ghost-app_1? | [2022-12-01 14:06:32] INFO Ghost server started in 4.359s

ghost-app_1? | [2022-12-01 14:06:32] ERROR connect ECONNREFUSED 127.0.0.1:3306

ghost-app_1? |?

ghost-app_1? | connect ECONNREFUSED 127.0.0.1:3306

ghost-app_1? |?

ghost-app_1? | "Unknown database error"

ghost-app_1? |?

ghost-app_1? | Error ID:

ghost-app_1? |? ? ?500

ghost-app_1? |?

ghost-app_1? | Error Code:?

ghost-app_1? |? ? ?ECONNREFUSED

ghost-app_1? |?

ghost-app_1? | ----------------------------------------

ghost-app_1? |?

ghost-app_1? | Error: connect ECONNREFUSED 127.0.0.1:3306

ghost-app_1? |? ? ?at /var/lib/ghost/versions/5.24.2/node_modules/knex-migrator/lib/database.js:57:19

ghost-app_1? |? ? ?at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1278:16)

ghost-app_1? |?

ghost-app_1? | [2022-12-01 14:06:32] WARN Ghost is shutting down

ghost-app_1? | [2022-12-01 14:06:32] WARN Ghost has shut down

ghost-app_1? | [2022-12-01 14:06:32] WARN Your site is now offline

ghost-app_1? | [2022-12-01 14:06:32] WARN Ghost was running for a few seconds

gh_ghost-app_1 exited with code 2