feat(jans-cedarling): implement environment variable loading for sidecar

jans-cedarling/flask-sidecar/Dockerfile

@@ -31,7 +31,7 @@ RUN pip3 install "poetry==$POETRY_VERSION" gunicorn \
 # ===============
 # Project setup
 # ===============
-ENV JANS_SOURCE_VERSION=040ff17942019bc10433ce17d819b8d8474f13c8
+ENV JANS_SOURCE_VERSION=81b061d8a2777afafe3ea9b36859561715da5839
 
 COPY docker-entrypoint.sh /
 RUN chmod +x /docker-entrypoint.sh
@@ -70,7 +70,7 @@ RUN poetry add /api/cedarling_python-$(cat /api/cedarling_version)-cp310-cp310-m
 
 ENV FLASK_APP=main.core:app \
     GUNICORN_LOG_LEVEL=${GUNICORN_LOG_LEVEL:-debug} \
-    CEDARLING_BOOTSTRAP_CONFIG_FILE=${CEDARLING_BOOTSTRAP_CONFIG_FILE:-/api/bootstrap.json} \
+    CEDARLING_BOOTSTRAP_CONFIG_FILE=${CEDARLING_BOOTSTRAP_CONFIG_FILE:-None} \
     SIDECAR_DEBUG_RESPOSE=${SIDECAR_DEBUG_RESPONSE:-False}
 
 EXPOSE 5000

jans-cedarling/flask-sidecar/README.md

@@ -47,14 +47,29 @@ CEDARLING_BOOTSTRAP_CONFIG_FILE=/path/to/bootstrap.json
 SIDECAR_DEBUG_RESPONSE=False
 ```
 
+Alternatively, you may add cedarling [bootstrap configuration](https://docs.jans.io/head/cedarling/cedarling-properties/) directly in your `.env` file. 
+
+```
+APP_MODE=development
+SIDECAR_DEBUG_RESPONSE=True
+CEDARLING_APPLICATION_NAME=MyApp
+CEDARLING_POLICY_STORE_ID=abcdef
+CEDARLING_POLICY_STORE_URI=https://gluu.org
+CEDARLING_USER_AUTHZ=disabled
+CEDARLING_WORKLOAD_AUTHZ=enabled
+CEDARLING_ID_TOKEN_TRUST_MODE=none
+```
+
+In this case, please be aware of case sensitivity. Environment variables are directly parsed as strings, hence `none` is not the same as `None`.
+
 ## Tests
 
 Not yet implemented
 
 # Docker Instructions
 
 - Create a file called `bootstrap.json`. You may use this [sample](https://github.com/JanssenProject/jans/blob/main/jans-cedarling/flask-sidecar/secrets/bootstrap.json) file. 
-- Modify the file to your specifications. Configuration values are described [here](https://github.com/JanssenProject/jans/blob/main/jans-cedarling/bindings/cedarling_python/cedarling_python.pyi).
+- Modify the file to your specifications. Configuration values are described [here](https://docs.jans.io/head/cedarling/cedarling-properties/).
 - Pull the docker image:
 	```
 	docker pull ghcr.io/janssenproject/jans/cedarling-flask-sidecar:0.0.0-nightly
@@ -70,23 +85,75 @@ Not yet implemented
 		-p 5000:5000\
 		ghcr.io/janssenproject/jans/cedarling-flask-sidecar:0.0.0-nightly
 	```
+- Alternatively, you may provide environment variables directly via the `-e` flag:
+	```bash
+	docker run \
+		-e APP_MODE='development' \
+		-e SIDECAR_DEBUG_RESPONSE=True \
+		-e CEDARLING_APPLICATION_NAME=MyApp \
+		-e CEDARLING_POLICY_STORE_ID=abcdef \
+		-e CEDARLING_POLICY_STORE_URI=https://gluu.org \
+		-e CEDARLING_USER_AUTHZ=enabled \
+		-e CEDARLING_WORKLOAD_AUTHZ=enabled \
+		-e CEDARLING_ID_TOKEN_TRUST_MODE=none \
+		-p 5000:5000 \
+		ghcr.io/janssenproject/jans/cedarling-flask-sidecar:0.0.0-nightly
 - The service is running on `http://0.0.0.0:5000`. OpenAPI documentation is available at `/swagger-ui`
 
 ## Docker Compose Instructions (for development)
 
-- Clone the [Janssen](https://github.com/JanssenProject/jans) repository
+
+- Clone the [Janssen](https://github.com/JanssenProject/jans) repository:
+    ```
+    git clone --filter blob:none --no-checkout https://github.com/JanssenProject/jans
+    ```
+    ```
+    cd jans
+    ```
+    ```
+    git sparse-checkout init --cone
+    ```
+    ```
+    git checkout main
+    ```
+
+    ```
+    git sparse-checkout set jans-cedarling
+    ```
 - Navigate to `jans/jans-cedarling/flask-sidecar/`
-- Modify the `secrets/bootstrap.json` file to your specifications. Configuration values are described [here](https://github.com/JanssenProject/jans/blob/main/jans-cedarling/bindings/cedarling_python/cedarling_python.pyi).
+
+### Static bootstrap method 
+
+- Modify the `secrets/bootstrap.json` file to your specifications. Configuration values are described [here](https://docs.jans.io/head/cedarling/cedarling-properties/).
     - The default configuration expects you to provide a URL to a policy store file via `CEDARLING_POLICY_STORE_URI`. If you want to use a local policy store via `CEDARLING_POLICY_STORE_FN`, you need to mount it inside the docker image. Place your policy store file in the `secrets` folder and edit the Dockerfile at line 46 to add this line:
 
     ```
     ...
     COPY --chown=1000:1000 ./secrets/<policy store file>.json /api/
     ...
     ```
-- Run `docker compose up`
+- Run `docker compose -f docker-compose-file.yml up`
+- The service is running on `http://0.0.0.0:5000`. OpenAPI documentation is available at `/swagger-ui`
+
+### Environment variable method
+
+- Set your environment variables. You may create an `.env` file and paste in the content for convenience:
+```
+APP_MODE=development
+SIDECAR_DEBUG_RESPONSE=True
+CEDARLING_APPLICATION_NAME=MyApp
+CEDARLING_POLICY_STORE_ID=abcdef
+CEDARLING_POLICY_STORE_URI=https://gluu.org
+CEDARLING_USER_AUTHZ=disabled
+CEDARLING_WORKLOAD_AUTHZ=enabled
+CEDARLING_ID_TOKEN_TRUST_MODE=none
+...
+```
+- 
+- Run `docker compose -f docker-compose-env.yml up`
 - The service is running on `http://0.0.0.0:5000`. OpenAPI documentation is available at `/swagger-ui`
 
+
 ## OpenAPI
 
 OpenAPI documentation is found in `flask-sidecar.yml`

jans-cedarling/flask-sidecar/docker-compose-env.yml

@@ -0,0 +1,20 @@
+services:
+  sidecar:
+    image: flask-sidecar
+    build: ./
+    restart: always
+    ports:
+      - "5000:5000"
+    environment:
+      - FLASK_APP=main.core:app
+      - APP_MODE=${APP_MODE:-development}
+      - CEDARLING_BOOTSTRAP_CONFIG_FILE=None
+      - CEDARLING_APPLICATION_NAME=${CEDARLING_APPLICATION_NAME:-None}
+      - CEDARLING_POLICY_STORE_URI=${CEDARLING_POLICY_STORE_URI:-None}
+      - CEDARLING_POLICY_STORE_ID=${CEDARLING_POLICY_STORE_ID:-None}
+      - CEDARLING_USER_AUTHZ=${CEDARLING_USER_AUTHZ:-enabled}
+      - CEDARLING_WORKLOAD_AUTHZ=${CEDARLING_WORKLOAD_AUTHZ:-enabled}
+      - CEDARLING_USER_WORKLOAD_BOOLEAN_OPERATION=${CEDARLING_USER_WORKLOAD_BOOLEAN_OPERATION:-AND}
+      - CEDARLING_LOG_TYPE=${CEDARLING_LOG_TYPE:-memory}
+      - CEDARLING_LOG_LEVEL=${CEDARLING_LOG_LEVEL:-WARN}
+      - CEDARLING_ID_TOKEN_TRUST_MODE=${CEDARLING_ID_TOKEN_TRUST_MODE:-strict}

jans-cedarling/flask-sidecar/docker-compose-file.yml

@@ -0,0 +1,16 @@
+services:
+  sidecar:
+    image: flask-sidecar
+    build: ./
+    restart: always
+    ports:
+      - "5000:5000"
+    volumes:
+      - type: bind
+        source: ./secrets/bootstrap.json
+        target: /bootstrap.json
+    environment:
+      - FLASK_APP=main.core:app
+      - APP_MODE=${APP_MODE:-development}
+      - SIDECAR_DEBUG_RESPOSE=${SIDECAR_DEBUG_RESPOSE:-False}
+      - CEDARLING_BOOTSTRAP_CONFIG_FILE=/bootstrap.json

jans-cedarling/flask-sidecar/main/base/cedarling/cedarling.py

@@ -24,7 +24,6 @@
 )
 from main.logger import logger
 from flask import Flask
-import json
 import typing as _t
 
 DictType = _t.Dict[str, _t.Any]
@@ -34,24 +33,25 @@
 class CedarlingInstance:
 
     def __init__(self, app=None):
-        self._bootstrap_config: str
+        self._bootstrap_config: str | None
         self._cedarling: Cedarling
         if app is not None:
             self.init_app(app)
 
     def init_app(self, app: Flask):
-        self._bootstrap_config = app.config.get(
-            "CEDARLING_BOOTSTRAP_CONFIG", "{}")
-        self.debug_response: bool = app.config.get(
-            "SIDECAR_DEBUG_RESPONSE", False)
+        self._bootstrap_config = app.config.get("CEDARLING_BOOTSTRAP_CONFIG", None)
+        self.debug_response: bool = app.config.get("SIDECAR_DEBUG_RESPONSE", False)
         app.extensions = getattr(app, "extensions", {})
         app.extensions["cedarling_client"] = self
         self.initialize_cedarling()
 
     def initialize_cedarling(self):
-        bootstrap_dict = json.loads(self._bootstrap_config)
-        bootstrap_instance = BootstrapConfig(bootstrap_dict)
-        self._cedarling = Cedarling(bootstrap_instance)
+        if self._bootstrap_config is None:
+            logger.info("Loading bootstrap from environment")
+            bootstrap_config = BootstrapConfig.from_env()
+        else:
+            bootstrap_config = BootstrapConfig.load_from_json(self._bootstrap_config) 
+        self._cedarling = Cedarling(bootstrap_config)
 
     def get_cedarling_instance(self) -> Cedarling:
         return self._cedarling
@@ -146,24 +146,23 @@ def authorize(self,
                 person_value = person_result.decision.value
             if workload_result is not None:
                 workload_value = workload_result.decision.value
-                person_diagnostic = self.generate_report(
-                    person_result, "reason")
-                person_error = self.generate_report(person_result, "error")
-                person_reason = self.get_reason(person_result)
-                workload_diagnostic = self.generate_report(
-                    workload_result, "reason")
-                workload_error = self.generate_report(workload_result, "error")
-                workload_reason = self.get_reason(workload_result)
-                result_dict["context"] = {
-                    "reason_admin": {
-                        "person evaluation": person_value,
-                        "person diagnostics": person_diagnostic,
-                        "person error": person_error,
-                        "person reason": person_reason,
-                        "workload evaluation": workload_value,
-                        "workload diagnostics": workload_diagnostic,
-                        "workload error": workload_error,
-                        "workload reason": workload_reason
-                    }
+            person_diagnostic = self.generate_report(person_result, "reason")
+            person_error = self.generate_report(person_result, "error")
+            person_reason = self.get_reason(person_result)
+            workload_diagnostic = self.generate_report(workload_result, "reason")
+            workload_error = self.generate_report(workload_result, "error")
+            workload_reason = self.get_reason(workload_result)
+            result_dict["context"] = {
+                "reason_admin": {
+                    "person evaluation": person_value,
+                    "person diagnostics": person_diagnostic,
+                    "person error": person_error,
+                    "person reason": person_reason,
+                    "workload evaluation": workload_value,
+                    "workload diagnostics": workload_diagnostic,
+                    "workload error": workload_error,
+                    "workload reason": workload_reason
                 }
+            }
+        logger.info(f"Cedarling evaluation result: {result_dict}")
         return result_dict

jans-cedarling/flask-sidecar/main/config.py

@@ -18,14 +18,12 @@
 from pathlib import Path
 from main.logger import logger
 
-
 def get_instance_path(parent_dir=""):
     parent_dir = parent_dir or Path.home()
     instance_path = Path(parent_dir).joinpath(".cloud")
     instance_path.mkdir(parents=True, exist_ok=True)
     return instance_path.resolve()
 
-
 class BaseConfig:
     API_TITLE = "Cedarling Sidecar"
     API_VERSION = "v1"
@@ -37,42 +35,37 @@ class BaseConfig:
     API_SPEC_OPTIONS = {
         "x-internal-id": "1",
     }
-    CEDARLING_BOOTSTRAP_CONFIG_FILE = os.getenv(
-        "CEDARLING_BOOTSTRAP_CONFIG_FILE", None)
-    if CEDARLING_BOOTSTRAP_CONFIG_FILE is None:
-        logger.warning("Cedarling bootstrap file not found")
-        exit()
-    with open(CEDARLING_BOOTSTRAP_CONFIG_FILE, "r") as f:
-        CEDARLING_BOOTSTRAP_CONFIG = f.read()
+    CEDARLING_BOOTSTRAP_CONFIG = None
+    CEDARLING_BOOTSTRAP_CONFIG_FILE = os.getenv("CEDARLING_BOOTSTRAP_CONFIG_FILE", "None")
+    if CEDARLING_BOOTSTRAP_CONFIG_FILE == "None":
+        logger.info("Cedarling bootstrap file not found, falling back to environment variables")
+    else:
+        with open(CEDARLING_BOOTSTRAP_CONFIG_FILE, "r") as f:
+            CEDARLING_BOOTSTRAP_CONFIG = f.read()
     SIDECAR_DEBUG_RESPONSE = os.getenv("SIDECAR_DEBUG_RESPONSE", "False")
     if SIDECAR_DEBUG_RESPONSE == "True":
         SIDECAR_DEBUG_RESPONSE = True
     else:
         SIDECAR_DEBUG_RESPONSE = False
 
-
 class TestingConfig(BaseConfig):
     TESTING = True
     DEBUG = True
 
-
 class DevelopmentConfig(BaseConfig):
     DEVELOPMENT = True
     DEBUG = True
 
-
 class ProductionConfig(BaseConfig):
     DEVELOPMENT = False
 
-
 config = {
     "testing": TestingConfig,
     "default": TestingConfig,
     "development": DevelopmentConfig,
     "production": ProductionConfig
 }
 
-
 class ConfigLoader:
 
     @staticmethod

jans-cedarling/flask-sidecar/main/logger.py

@@ -15,25 +15,24 @@
 """
 
 from datetime import datetime
+import logging
+import orjson
 
-from structlog import configure, stdlib, processors, get_logger 
+from structlog import configure, get_logger, stdlib, processors, BytesLoggerFactory, make_filtering_bound_logger, \
+    contextvars
 from pythonjsonlogger import jsonlogger
 
 configure(
+    cache_logger_on_first_use=True,
+    wrapper_class=make_filtering_bound_logger(logging.INFO),
     processors=[
-        stdlib.filter_by_level,
-        stdlib.add_logger_name,
-        stdlib.add_log_level,
-        stdlib.PositionalArgumentsFormatter(),
-        processors.TimeStamper(fmt='iso'),
-        processors.StackInfoRenderer(),
+        contextvars.merge_contextvars,
+        processors.add_log_level,
         processors.format_exc_info,
-        processors.JSONRenderer()
+        processors.TimeStamper(fmt="iso", utc=True),
+        processors.JSONRenderer(serializer=orjson.dumps),
     ],
-    context_class=dict,
-    logger_factory=stdlib.LoggerFactory(),
-    wrapper_class=stdlib.BoundLogger,
-    cache_logger_on_first_use=True,
+    logger_factory=BytesLoggerFactory(),
 )
 
 logger:stdlib.BoundLogger = get_logger()