add bedrock distribution code (#358)

* add bedrock distribution code

* fix linter error

* add bedrock shields support

* linter fixes

* working bedrock safety

* change to return only one violation

* remove env var reading

* refereshable boto credentials

* remove env vars

* address raghu's feedback

* fix session_ttl passing

---------

Co-authored-by: Dinesh Yeduguru <dineshyv@fb.com>

distributions/bedrock/compose.yaml

@@ -0,0 +1,15 @@
+services:
+  llamastack:
+    image: distribution-bedrock
+    volumes:
+      - ~/.llama:/root/.llama
+      - ./run.yaml:/root/llamastack-run-bedrock.yaml
+    ports:
+      - "5000:5000"
+    entrypoint: bash -c "python -m llama_stack.distribution.server.server --yaml_config /root/llamastack-run-bedrock.yaml"
+    deploy:
+      restart_policy:
+        condition: on-failure
+        delay: 3s
+        max_attempts: 5
+        window: 60s

distributions/bedrock/run.yaml

@@ -0,0 +1,46 @@
+version: '2'
+built_at: '2024-11-01T17:40:45.325529'
+image_name: local
+name: bedrock
+docker_image: null
+conda_env: local
+apis:
+- shields
+- agents
+- models
+- memory
+- memory_banks
+- inference
+- safety
+providers:
+  inference:
+    - provider_id: bedrock0
+      provider_type: remote::bedrock
+      config:
+        aws_access_key_id: <AWS_ACCESS_KEY_ID>
+        aws_secret_access_key: <AWS_SECRET_ACCESS_KEY>
+        aws_session_token: <AWS_SESSION_TOKEN>
+        region_name: <AWS_REGION>
+  memory:
+    - provider_id: meta0
+      provider_type: meta-reference
+      config: {}
+  safety:
+    - provider_id: bedrock0
+      provider_type: remote::bedrock
+      config:
+        aws_access_key_id: <AWS_ACCESS_KEY_ID>
+        aws_secret_access_key: <AWS_SECRET_ACCESS_KEY>
+        aws_session_token: <AWS_SESSION_TOKEN>
+        region_name: <AWS_REGION>
+  agents:
+    - provider_id: meta0
+      provider_type: meta-reference
+      config:
+        persistence_store:
+          type: sqlite
+          db_path: ~/.llama/runtime/kvstore.db
+  telemetry:
+    - provider_id: meta0
+      provider_type: meta-reference
+      config: {}