linghengqian commented on issue #23283:
URL:
https://github.com/apache/shardingsphere/issues/23283#issuecomment-1398608315
@pengxianggui
- One possible idea is that we can change the existing process of reading
YAML, and try to read environment variables once text in the format of `${}`
such as `${SELF_JDBC_URL}` is detected.
- Even now, there is a less intuitive way of doing it. Since
shardingsphere-jdbc-core comes with SnakeYAML 1.33, you can pre-write a YAML
file or Template file that contains a series of `${}`, and then use SnakeYAML
to read and replace this part of `${}` with other self- Environment variable
values read with functions, and then serialized into YAML files required by
shardingsphere-jbdc-core. The process I am talking about is somewhat similar
to the way nginx's docker image reads environment variables, refer to
https://hub.docker.com/_/nginx .
- I'm assuming you have another plan for submitting a PR.
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