Use hydra for managing configurations

.gitignore

@@ -162,4 +162,7 @@ cython_debug/
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 
-.vscode/
+.vscode/
+
+# hydra
+outputs

nerdd_backend/settings/channel/kafka.yaml

@@ -0,0 +1,7 @@
+name: kafka
+# If env is set to true, try to get the broker url from the environment
+# variable KAFKA_BROKER_URL if it is defined. Otherwise (if env is set
+# to false or the variable is not defined), use the fallback value below.
+env: true
+# fallback value:
+broker_url: my-cluster-kafka-bootstrap.kafka:9092

nerdd_backend/settings/channel/memory.yaml

@@ -0,0 +1 @@
+name: memory

nerdd_backend/settings/config.yaml

@@ -0,0 +1,2 @@
+defaults:
+  - development

nerdd_backend/settings/db/memory.yaml

@@ -0,0 +1 @@
+name: "memory"

nerdd_backend/settings/db/rethinkdb.yaml

@@ -0,0 +1,10 @@
+name: rethinkdb
+# If env is set to true, the server tries to get host, port and database name from environment
+# variables (RETHINKDB_HOST, RETHINKDB_PORT, RETHINKDB_DATABASE). If an environment variable is
+# not defined, its fallback value (see below) will be used.
+env: true
+# If env is set to false (or environment variables are not found), then the following values are
+# used:
+host: rethinkdb-service.default
+port: 28015
+database: nerdd

nerdd_backend/settings/development.yaml

@@ -0,0 +1,9 @@
+defaults:
+  - channel: memory
+  - db: memory
+
+host: localhost
+port: 8000
+
+page_size: 5
+media_root: ./media

nerdd_backend/settings/production.yaml

@@ -0,0 +1,9 @@
+defaults:
+  - channel: kafka
+  - db: rethinkdb
+
+host: 0.0.0.0
+port: 8000
+
+page_size: 5
+media_root: /data

pyproject.toml

@@ -35,6 +35,7 @@ dependencies = [
     "python-multipart~=0.0.6",
     "aiofiles~=23.2.1",
     "looseversion~=1.3.0",
+    "hydra-core>=1.3.2",
     "importlib-resources>=5; python_version<'3.9'",
     "importlib-metadata>=4.6; python_version<'3.10'",
 ]