Feature/environment var creds (#116)

- Change templates to interpolate environment variables in docker compose
- Change templates to invoke secrets for environment variable credentials in K8s configuration
- Update LLMs to pull in credentials from environment variables if not specified

trustgraph-flow/trustgraph/model/text_completion/claude/llm.py

@@ -6,6 +6,7 @@ Input is prompt, output is response.
 
 import anthropic
 from prometheus_client import Histogram
+import os
 
 from .... schema import TextCompletionRequest, TextCompletionResponse, Error
 from .... schema import text_completion_request_queue
@@ -22,6 +23,7 @@ default_subscriber = module
 default_model = 'claude-3-5-sonnet-20240620'
 default_temperature = 0.0
 default_max_output = 8192
+default_api_key = os.getenv("CLAUDE_KEY")
 
 class Processor(ConsumerProducer):
 
@@ -31,10 +33,13 @@ class Processor(ConsumerProducer):
         output_queue = params.get("output_queue", default_output_queue)
         subscriber = params.get("subscriber", default_subscriber)
         model = params.get("model", default_model)
-        api_key = params.get("api_key")
+        api_key = params.get("api_key", default_api_key)
         temperature = params.get("temperature", default_temperature)
         max_output = params.get("max_output", default_max_output)
 
+        if api_key is None:
+            raise RuntimeError("Claude API key not specified")
+
         super(Processor, self).__init__(
             **params | {
                 "input_queue": input_queue,