feat:add apollo configuration to load env file

[huanshare]

Close #11064

Summary

Please note:dify supports loading env file configuration from the configuration-center(apollo). If you use apollo, first configure the dify configuration on apollo, and then before starting the project, configure the following parameters in the environment variables:
CONFIGURATION_TYPE=apollo,APOLLO_APP_ID=xxx,APOLLO_CLUSTER=xxx,APOLLO_CONFIG_URL=xxx,APOLLO_NAMESPACE=xxx

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Checklist

Important

Please review the checklist below before submitting your pull request.

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

[crazywoola]

Cool, I shall talk to the dev team regarding this pull request.

[laipz8200]

I think this PR needs improvement:

1. The configuration information used by Apollo is only sourced from environment variables. It would be clearer to include this information in the code like the DifyConfig structure.
2. We should first read the configuration center details from the environment variables (or a .env file) and then access the configuration center to update the settings.
3. Overwriting the .env file is a bad idea, as it would result in losing the original content of the file.

[huanshare]

I think this PR needs improvement:

1. The configuration information used by Apollo is only sourced from environment variables. It would be clearer to include this information in the code like the DifyConfig structure.
2. We should first read the configuration center details from the environment variables (or a .env file) and then access the configuration center to update the settings.
3. Overwriting the .env file is a bad idea, as it would result in losing the original content of the file.

1、The first problem has been adjusted.
2、The second apollo configuration involves security issues. It is recommended to configure from environment variables instead of reading from env files.
3、The third problem has been adjusted (the key that exists in apollo overwrites the one in env file, and the key that does not exist in apollo still uses the original one).

*** For the third problem, it is recommended that all configurations except environment variables should be configured using apollo, so that it is easier to maintain in one place.

[laipz8200]

Hi @huanshare.

The current implementation still doesn’t quite meet my expectations. Here’s the scenario I envision:

1. The user configures Apollo-related information in environment variables.
2. When Dify starts, this information is loaded into dify_config.
3. ext_configuration retrieves dify_config and checks if Apollo is configured.
4. ext_configuration fetches the configuration from Apollo and updates dify_config.

Hope this helps clarify!

[huanshare]

Hi @huanshare.

The current implementation still doesn’t quite meet my expectations. Here’s the scenario I envision:

1. The user configures Apollo-related information in environment variables.
2. When Dify starts, this information is loaded into dify_config.
3. ext_configuration retrieves dify_config and checks if Apollo is configured.
4. ext_configuration fetches the configuration from Apollo and updates dify_config.

Hope this helps clarify!

I am sorry,I ran into some issues and need to close this pull request

[laipz8200]

Don’t mind. Would you consider opening a new PR to complete this feature? I agree that we can read Apollo's configuration directly from environment variables (in fact, adding the configuration to DifyConfig will still prioritize using environment variables), but I would like to avoid modifying our .env file. Instead, we can simply update the dify_config object.

[huanshare]

Don’t mind. Would you consider opening a new PR to complete this feature? I agree that we can read Apollo's configuration directly from environment variables (in fact, adding the configuration to DifyConfig will still prioritize using environment variables), but I would like to avoid modifying our .env file. Instead, we can simply update the dify_config object.

you can visit this #11210