Add settings for custom base url (#2594)

* Add settings for custom base url and embedding dimension

Making the openai base url and embedding dimension configurable, these are useful to integrate AutoGPT with other models, like LLaMA

* Update to milvus.py to load the configuration also in the init_collection function

* Update radismem.py to get rid of Config() loading

* Update local.py to get rid of Config() loading

* Correct code format (python black)

* Revert DEFAULT_EMBED_DIM name to EMBED_DIM to keep tests  valid

* Better description for EMBED_DIM setting

* Set MockConfig to the type Config in Milvus test

* Fix formatting

* Update Milvus test, using Config() instead of building a mock config

* using the last milvus test code from main

* Remove embed_dim , no more needed after #4208

* Add example for OPENAI_BASE_URL

---------

Co-authored-by: Nicholas Tindle <nick@ntindle.com>
Co-authored-by: Reinier van der Leer <github@pwuts.nl>
Co-authored-by: merwanehamadi <merwanehamadi@gmail.com>

.env.template

@@ -22,6 +22,10 @@ OPENAI_API_KEY=your-openai-api-key
 ## PROMPT_SETTINGS_FILE - Specifies which Prompt Settings file to use (defaults to prompt_settings.yaml)
 # PROMPT_SETTINGS_FILE=prompt_settings.yaml
 
+## OPENAI_API_BASE_URL - Custom url for the OpenAI API, useful for connecting to custom backends. No effect if USE_AZURE is true, leave blank to keep the default url 
+# the following is an example:
+# OPENAI_API_BASE_URL=http://localhost:443/v1
+
 ## AUTHORISE COMMAND KEY - Key to authorise commands
 # AUTHORISE_COMMAND_KEY=y
 

autogpt/config/config.py

@@ -82,6 +82,8 @@ class Config(metaclass=Singleton):
             openai.api_type = self.openai_api_type
             openai.api_base = self.openai_api_base
             openai.api_version = self.openai_api_version
+        elif os.getenv("OPENAI_API_BASE_URL", None):
+            openai.api_base = os.getenv("OPENAI_API_BASE_URL")
 
         if self.openai_organization is not None:
             openai.organization = self.openai_organization