Feature/expose log levels as env variable (#3704)

* Expose log levels as env variable

* Update documentation

* Update changelog

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Reworked the portfolio calculator
+- Exposed the log levels as an environment variable (`LOG_LEVELS`)
 - Exposed the maximum of chart data items as an environment variable (`MAX_CHART_ITEMS`)
 
 ### Fixed

README.md

@@ -86,13 +86,14 @@ We provide official container images hosted on [Docker Hub](https://hub.docker.c
 ### Supported Environment Variables
 
 | Name                     | Type                  | Default Value | Description                                                                                                                         |
-| ------------------------ | ------------------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
+| ------------------------ | --------------------- | ------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
 | `ACCESS_TOKEN_SALT`      | `string`              |               | A random string used as salt for access tokens                                                                                      |
 | `API_KEY_COINGECKO_DEMO` | `string` (optional)   |               | The _CoinGecko_ Demo API key                                                                                                        |
 | `API_KEY_COINGECKO_PRO`  | `string` (optional)   |               | The _CoinGecko_ Pro API key                                                                                                         |
 | `DATABASE_URL`           | `string`              |               | The database connection URL, e.g. `postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@localhost:5432/${POSTGRES_DB}?sslmode=prefer` |
 | `HOST`                   | `string` (optional)   | `0.0.0.0`     | The host where the Ghostfolio application will run on                                                                               |
 | `JWT_SECRET_KEY`         | `string`              |               | A random string used for _JSON Web Tokens_ (JWT)                                                                                    |
+| `LOG_LEVELS`             | `string[]` (optional) |               | The logging levels for the Ghostfolio application, e.g. `["debug","error","log","warn"]`                                            |
 | `PORT`                   | `number` (optional)   | `3333`        | The port where the Ghostfolio application will run on                                                                               |
 | `POSTGRES_DB`            | `string`              |               | The name of the _PostgreSQL_ database                                                                                               |
 | `POSTGRES_PASSWORD`      | `string`              |               | The password of the _PostgreSQL_ database                                                                                           |

apps/api/src/main.ts

@@ -1,4 +1,9 @@
-import { Logger, ValidationPipe, VersioningType } from '@nestjs/common';
+import {
+  Logger,
+  LogLevel,
+  ValidationPipe,
+  VersioningType
+} from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { NestFactory } from '@nestjs/core';
 import type { NestExpressApplication } from '@nestjs/platform-express';
@@ -12,11 +17,20 @@ import { HtmlTemplateMiddleware } from './middlewares/html-template.middleware';
 async function bootstrap() {
   const configApp = await NestFactory.create(AppModule);
   const configService = configApp.get<ConfigService>(ConfigService);
+  let customLogLevels: LogLevel[];
+
+  try {
+    customLogLevels = JSON.parse(
+      configService.get<string>('LOG_LEVELS')
+    ) as LogLevel[];
+  } catch {}
 
   const app = await NestFactory.create<NestExpressApplication>(AppModule, {
-    logger: environment.production
+    logger:
+      customLogLevels ??
+      (environment.production
         ? ['error', 'log', 'warn']
-      : ['debug', 'error', 'log', 'verbose', 'warn']
+        : ['debug', 'error', 'log', 'verbose', 'warn'])
   });
 
   app.enableCors();