refactor(backend): refactor logger

31 files changed, 202 insertions, 75 deletions

diff --git a/packages/backend/src/core/CoreModule.ts b/packages/backend/src/core/CoreModule.ts
index 523362818f..da07728d22 100644
--- a/packages/backend/src/core/CoreModule.ts
+++ b/packages/backend/src/core/CoreModule.ts
@@ -50,6 +50,7 @@ import { WebhookService } from './WebhookService.js';
 import { ProxyAccountService } from './ProxyAccountService.js';
 import { UtilityService } from './UtilityService.js';
 import { FileInfoService } from './FileInfoService.js';
+import { ChartLoggerService } from './chart/ChartLoggerService.js';
 import FederationChart from './chart/charts/federation.js';
 import NotesChart from './chart/charts/notes.js';
 import UsersChart from './chart/charts/users.js';
@@ -113,9 +114,11 @@ import { ApPersonService } from './remote/activitypub/models/ApPersonService.js'
 import { ApQuestionService } from './remote/activitypub/models/ApQuestionService.js';
 import { QueueModule } from './queue/QueueModule.js';
 import { QueueService } from './QueueService.js';
+import { LoggerService } from './LoggerService.js';
 import type { Provider } from '@nestjs/common';
 
 //#region 文字列ベースでのinjection用(循環参照対応のため)
+const $LoggerService: Provider = { provide: 'LoggerService', useExisting: LoggerService };
 const $AccountUpdateService: Provider = { provide: 'AccountUpdateService', useExisting: AccountUpdateService };
 const $AiService: Provider = { provide: 'AiService', useExisting: AiService };
 const $AntennaService: Provider = { provide: 'AntennaService', useExisting: AntennaService };
@@ -166,6 +169,7 @@ const $VideoProcessingService: Provider = { provide: 'VideoProcessingService', u
 const $WebhookService: Provider = { provide: 'WebhookService', useExisting: WebhookService };
 const $UtilityService: Provider = { provide: 'UtilityService', useExisting: UtilityService };
 const $FileInfoService: Provider = { provide: 'FileInfoService', useExisting: FileInfoService };
+const $ChartLoggerService: Provider = { provide: 'ChartLoggerService', useExisting: ChartLoggerService };
 const $FederationChart: Provider = { provide: 'FederationChart', useExisting: FederationChart };
 const $NotesChart: Provider = { provide: 'NotesChart', useExisting: NotesChart };
 const $UsersChart: Provider = { provide: 'UsersChart', useExisting: UsersChart };
@@ -236,6 +240,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		QueueModule,
 	],
 	providers: [
+		LoggerService,
 		AccountUpdateService,
 		AiService,
 		AntennaService,
@@ -286,6 +291,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		WebhookService,
 		UtilityService,
 		FileInfoService,
+		ChartLoggerService,
 		FederationChart,
 		NotesChart,
 		UsersChart,
@@ -350,6 +356,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		QueueService,
 
 		//#region 文字列ベースでのinjection用(循環参照対応のため)
+		$LoggerService,
 		$AccountUpdateService,
 		$AiService,
 		$AntennaService,
@@ -400,6 +407,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		$WebhookService,
 		$UtilityService,
 		$FileInfoService,
+		$ChartLoggerService,
 		$FederationChart,
 		$NotesChart,
 		$UsersChart,
@@ -465,6 +473,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 	],
 	exports: [
 		QueueModule,
+		LoggerService,
 		AccountUpdateService,
 		AiService,
 		AntennaService,
@@ -579,6 +588,7 @@ const $ApQuestionService: Provider = { provide: 'ApQuestionService', useExisting
 		QueueService,
 
 		//#region 文字列ベースでのinjection用(循環参照対応のため)
+		$LoggerService,
 		$AccountUpdateService,
 		$AiService,
 		$AntennaService,
diff --git a/packages/backend/src/core/DownloadService.ts b/packages/backend/src/core/DownloadService.ts
index 84d5ca2e8b..9c5c45ed2c 100644
--- a/packages/backend/src/core/DownloadService.ts
+++ b/packages/backend/src/core/DownloadService.ts
@@ -8,10 +8,11 @@ import got, * as Got from 'got';
 import chalk from 'chalk';
 import { DI } from '@/di-symbols.js';
 import { Config } from '@/config.js';
-import Logger from '@/logger.js';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import { createTemp } from '@/misc/create-temp.js';
 import { StatusError } from '@/misc/status-error.js';
+import { LoggerService } from '@/core/LoggerService.js';
+import type Logger from '@/logger.js';
 
 const pipeline = util.promisify(stream.pipeline);
 
@@ -24,8 +25,9 @@ export class DownloadService {
 		private config: Config,
 
 		private httpRequestService: HttpRequestService,
+		private loggerService: LoggerService,
 	) {
-		this.#logger = new Logger('download');
+		this.#logger = this.loggerService.getLogger('download');
 	}
 
 	public async downloadUrl(url: string, path: string): Promise<void> {
diff --git a/packages/backend/src/core/EmailService.ts b/packages/backend/src/core/EmailService.ts
index 7d6960b73b..a593922acc 100644
--- a/packages/backend/src/core/EmailService.ts
+++ b/packages/backend/src/core/EmailService.ts
@@ -4,8 +4,9 @@ import { validate as validateEmail } from 'deep-email-validator';
 import { MetaService } from '@/core/MetaService.js';
 import { DI } from '@/di-symbols.js';
 import { Config } from '@/config.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import { UserProfilesRepository } from '@/models/index.js';
+import { LoggerService } from '@/core/LoggerService.js';
 
 @Injectable()
 export class EmailService {
@@ -19,8 +20,9 @@ export class EmailService {
 		private userProfilesRepository: UserProfilesRepository,
 
 		private metaService: MetaService,
+		private loggerService: LoggerService,
 	) {
-		this.#logger = new Logger('email');
+		this.#logger = this.loggerService.getLogger('email');
 	}
 
 	public async sendEmail(to: string, subject: string, html: string, text: string) {
diff --git a/packages/backend/src/core/FetchInstanceMetadataService.ts b/packages/backend/src/core/FetchInstanceMetadataService.ts
index 6353784c13..4414d83942 100644
--- a/packages/backend/src/core/FetchInstanceMetadataService.ts
+++ b/packages/backend/src/core/FetchInstanceMetadataService.ts
@@ -6,13 +6,12 @@ import tinycolor from 'tinycolor2';
 import type { Instance } from '@/models/entities/Instance.js';
 import { InstancesRepository } from '@/models/index.js';
 import { AppLockService } from '@/core/AppLockService.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import { DI } from '@/di-symbols.js';
+import { LoggerService } from '@/core/LoggerService.js';
 import { HttpRequestService } from './HttpRequestService.js';
 import type { DOMWindow } from 'jsdom';
 
-const logger = new Logger('metadata', 'cyan');
-
 type NodeInfo = {
 	openRegistrations?: any;
 	software?: {
@@ -33,13 +32,17 @@ type NodeInfo = {
 
 @Injectable()
 export class FetchInstanceMetadataService {
+	#logger: Logger;
+
 	constructor(
 		@Inject(DI.instancesRepository)
 		private instancesRepository: InstancesRepository,
 
 		private appLockService: AppLockService,
 		private httpRequestService: HttpRequestService,
+		private loggerService: LoggerService,
 	) {
+		this.#logger = this.loggerService.getLogger('metadata', 'cyan');
 	}
 
 	public async fetchInstanceMetadata(instance: Instance, force = false): Promise<void> {
@@ -54,7 +57,7 @@ export class FetchInstanceMetadataService {
 			}
 		}
 	
-		logger.info(`Fetching metadata of ${instance.host} ...`);
+		this.#logger.info(`Fetching metadata of ${instance.host} ...`);
 	
 		try {
 			const [info, dom, manifest] = await Promise.all([
@@ -71,7 +74,7 @@ export class FetchInstanceMetadataService {
 				this.#getDescription(info, dom, manifest).catch(() => null),
 			]);
 	
-			logger.succ(`Successfuly fetched metadata of ${instance.host}`);
+			this.#logger.succ(`Successfuly fetched metadata of ${instance.host}`);
 	
 			const updates = {
 				infoUpdatedAt: new Date(),
@@ -93,16 +96,16 @@ export class FetchInstanceMetadataService {
 	
 			await this.instancesRepository.update(instance.id, updates);
 	
-			logger.succ(`Successfuly updated metadata of ${instance.host}`);
+			this.#logger.succ(`Successfuly updated metadata of ${instance.host}`);
 		} catch (e) {
-			logger.error(`Failed to update metadata of ${instance.host}: ${e}`);
+			this.#logger.error(`Failed to update metadata of ${instance.host}: ${e}`);
 		} finally {
 			unlock();
 		}
 	}
 
 	async #fetchNodeinfo(instance: Instance): Promise<NodeInfo> {
-		logger.info(`Fetching nodeinfo of ${instance.host} ...`);
+		this.#logger.info(`Fetching nodeinfo of ${instance.host} ...`);
 	
 		try {
 			const wellknown = await this.httpRequestService.getJson('https://' + instance.host + '/.well-known/nodeinfo')
@@ -134,18 +137,18 @@ export class FetchInstanceMetadataService {
 					throw err.statusCode ?? err.message;
 				});
 	
-			logger.succ(`Successfuly fetched nodeinfo of ${instance.host}`);
+			this.#logger.succ(`Successfuly fetched nodeinfo of ${instance.host}`);
 	
 			return info as NodeInfo;
 		} catch (err) {
-			logger.error(`Failed to fetch nodeinfo of ${instance.host}: ${err}`);
+			this.#logger.error(`Failed to fetch nodeinfo of ${instance.host}: ${err}`);
 	
 			throw err;
 		}
 	}
 
 	async #fetchDom(instance: Instance): Promise<DOMWindow['document']> {
-		logger.info(`Fetching HTML of ${instance.host} ...`);
+		this.#logger.info(`Fetching HTML of ${instance.host} ...`);
 	
 		const url = 'https://' + instance.host;
 	
diff --git a/packages/backend/src/core/LoggerService.ts b/packages/backend/src/core/LoggerService.ts
new file mode 100644
index 0000000000..d844b38841
--- /dev/null
+++ b/packages/backend/src/core/LoggerService.ts
@@ -0,0 +1,33 @@
+import { Inject, Injectable } from '@nestjs/common';
+import * as SyslogPro from 'syslog-pro';
+import { DI } from '@/di-symbols.js';
+import { Config } from '@/config.js';
+import Logger from '@/logger.js';
+
+@Injectable()
+export class LoggerService {
+	#syslogClient;
+
+	constructor(
+		@Inject(DI.config)
+		private config: Config,
+	) {
+		if (this.config.syslog) {
+			this.#syslogClient = new SyslogPro.RFC5424({
+				applacationName: 'Misskey',
+				timestamp: true,
+				encludeStructuredData: true,
+				color: true,
+				extendedColor: true,
+				server: {
+					target: config.syslog.host,
+					port: config.syslog.port,
+				},
+			});
+		}
+	}
+
+	public getLogger(domain: string, color?: string | undefined, store?: boolean) {
+		return new Logger(domain, color, store, this.#syslogClient);
+	}
+}
diff --git a/packages/backend/src/core/chart/ChartLoggerService.ts b/packages/backend/src/core/chart/ChartLoggerService.ts
new file mode 100644
index 0000000000..544a006ac9
--- /dev/null
+++ b/packages/backend/src/core/chart/ChartLoggerService.ts
@@ -0,0 +1,14 @@
+import { Inject, Injectable } from '@nestjs/common';
+import type Logger from '@/logger.js';
+import { LoggerService } from '@/core/LoggerService.js';
+
+@Injectable()
+export class ChartLoggerService {
+	public logger: Logger;
+
+	constructor(
+		private loggerService: LoggerService,
+	) {
+		this.logger = this.loggerService.getLogger('chart', 'white', process.env.NODE_ENV !== 'test');
+	}
+}
diff --git a/packages/backend/src/core/chart/charts/active-users.ts b/packages/backend/src/core/chart/charts/active-users.ts
index a5d9f166ed..40c60910ea 100644
--- a/packages/backend/src/core/chart/charts/active-users.ts
+++ b/packages/backend/src/core/chart/charts/active-users.ts
@@ -4,6 +4,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import type { User } from '@/models/entities/User.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/active-users.js';
 import type { KVs } from '../core.js';
 
@@ -22,8 +23,9 @@ export default class ActiveUsersChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/ap-request.ts b/packages/backend/src/core/chart/charts/ap-request.ts
index c857cea98c..4b91fbbf18 100644
--- a/packages/backend/src/core/chart/charts/ap-request.ts
+++ b/packages/backend/src/core/chart/charts/ap-request.ts
@@ -3,6 +3,7 @@ import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/ap-request.js';
 import type { KVs } from '../core.js';
 
@@ -17,8 +18,9 @@ export default class ApRequestChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/drive.ts b/packages/backend/src/core/chart/charts/drive.ts
index dd6d002030..494dfbbe57 100644
--- a/packages/backend/src/core/chart/charts/drive.ts
+++ b/packages/backend/src/core/chart/charts/drive.ts
@@ -4,6 +4,7 @@ import type { DriveFile } from '@/models/entities/DriveFile.js';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/drive.js';
 import type { KVs } from '../core.js';
 
@@ -18,8 +19,9 @@ export default class DriveChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/federation.ts b/packages/backend/src/core/chart/charts/federation.ts
index 372e0f1fae..4366d4cce1 100644
--- a/packages/backend/src/core/chart/charts/federation.ts
+++ b/packages/backend/src/core/chart/charts/federation.ts
@@ -5,6 +5,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import { MetaService } from '@/core/MetaService.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/federation.js';
 import type { KVs } from '../core.js';
 
@@ -26,8 +27,9 @@ export default class FederationChart extends Chart<typeof schema> {
 
 		private metaService: MetaService,
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/hashtag.ts b/packages/backend/src/core/chart/charts/hashtag.ts
index 66ac0b882b..8b8c795cfd 100644
--- a/packages/backend/src/core/chart/charts/hashtag.ts
+++ b/packages/backend/src/core/chart/charts/hashtag.ts
@@ -5,6 +5,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/hashtag.js';
 import type { KVs } from '../core.js';
 
@@ -20,8 +21,9 @@ export default class HashtagChart extends Chart<typeof schema> {
 
 		private appLockService: AppLockService,
 		private userEntityService: UserEntityService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/instance.ts b/packages/backend/src/core/chart/charts/instance.ts
index c43ebeddc1..be70bc79c0 100644
--- a/packages/backend/src/core/chart/charts/instance.ts
+++ b/packages/backend/src/core/chart/charts/instance.ts
@@ -7,6 +7,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import { UtilityService } from '@/core/UtilityService.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/instance.js';
 import type { KVs } from '../core.js';
 
@@ -34,8 +35,9 @@ export default class InstanceChart extends Chart<typeof schema> {
 
 		private utilityService: UtilityService,
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/notes.ts b/packages/backend/src/core/chart/charts/notes.ts
index 1597b5727e..e1bfeabf99 100644
--- a/packages/backend/src/core/chart/charts/notes.ts
+++ b/packages/backend/src/core/chart/charts/notes.ts
@@ -5,6 +5,7 @@ import type { Note } from '@/models/entities/Note.js';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/notes.js';
 import type { KVs } from '../core.js';
 
@@ -22,8 +23,9 @@ export default class NotesChart extends Chart<typeof schema> {
 		private notesRepository: NotesRepository,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/per-user-drive.ts b/packages/backend/src/core/chart/charts/per-user-drive.ts
index 181b9a38bb..752203daaf 100644
--- a/packages/backend/src/core/chart/charts/per-user-drive.ts
+++ b/packages/backend/src/core/chart/charts/per-user-drive.ts
@@ -6,6 +6,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import { DriveFileEntityService } from '@/core/entities/DriveFileEntityService.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/per-user-drive.js';
 import type { KVs } from '../core.js';
 
@@ -24,8 +25,9 @@ export default class PerUserDriveChart extends Chart<typeof schema> {
 
 		private appLockService: AppLockService,
 		private driveFileEntityService: DriveFileEntityService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/per-user-following.ts b/packages/backend/src/core/chart/charts/per-user-following.ts
index 5195723a25..48bf3d7c62 100644
--- a/packages/backend/src/core/chart/charts/per-user-following.ts
+++ b/packages/backend/src/core/chart/charts/per-user-following.ts
@@ -6,6 +6,7 @@ import { DI } from '@/di-symbols.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { FollowingsRepository } from '@/models/index.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/per-user-following.js';
 import type { KVs } from '../core.js';
 
@@ -24,8 +25,9 @@ export default class PerUserFollowingChart extends Chart<typeof schema> {
 
 		private appLockService: AppLockService,
 		private userEntityService: UserEntityService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/per-user-notes.ts b/packages/backend/src/core/chart/charts/per-user-notes.ts
index 6dbe309b7c..ffe52dcd56 100644
--- a/packages/backend/src/core/chart/charts/per-user-notes.ts
+++ b/packages/backend/src/core/chart/charts/per-user-notes.ts
@@ -6,6 +6,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import { NotesRepository } from '@/models/index.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/per-user-notes.js';
 import type { KVs } from '../core.js';
 
@@ -23,8 +24,9 @@ export default class PerUserNotesChart extends Chart<typeof schema> {
 		private notesRepository: NotesRepository,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/per-user-reactions.ts b/packages/backend/src/core/chart/charts/per-user-reactions.ts
index 73a58656f8..4160219720 100644
--- a/packages/backend/src/core/chart/charts/per-user-reactions.ts
+++ b/packages/backend/src/core/chart/charts/per-user-reactions.ts
@@ -6,6 +6,7 @@ import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/per-user-reactions.js';
 import type { KVs } from '../core.js';
 
@@ -21,8 +22,9 @@ export default class PerUserReactionsChart extends Chart<typeof schema> {
 
 		private appLockService: AppLockService,
 		private userEntityService: UserEntityService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test-grouped.ts b/packages/backend/src/core/chart/charts/test-grouped.ts
index e6cbe89790..103cf2a27e 100644
--- a/packages/backend/src/core/chart/charts/test-grouped.ts
+++ b/packages/backend/src/core/chart/charts/test-grouped.ts
@@ -3,6 +3,7 @@ import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test-grouped.js';
 import type { KVs } from '../core.js';
 
@@ -19,8 +20,9 @@ export default class TestGroupedChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema, true);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema, true);
 	}
 
 	protected async tickMajor(group: string): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test-intersection.ts b/packages/backend/src/core/chart/charts/test-intersection.ts
index f2f17c8de6..0e38769165 100644
--- a/packages/backend/src/core/chart/charts/test-intersection.ts
+++ b/packages/backend/src/core/chart/charts/test-intersection.ts
@@ -3,6 +3,7 @@ import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test-intersection.js';
 import type { KVs } from '../core.js';
 
@@ -17,8 +18,9 @@ export default class TestIntersectionChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test-unique.ts b/packages/backend/src/core/chart/charts/test-unique.ts
index ce01594520..44e1b8365d 100644
--- a/packages/backend/src/core/chart/charts/test-unique.ts
+++ b/packages/backend/src/core/chart/charts/test-unique.ts
@@ -3,6 +3,7 @@ import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test-unique.js';
 import type { KVs } from '../core.js';
 
@@ -17,8 +18,9 @@ export default class TestUniqueChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/test.ts b/packages/backend/src/core/chart/charts/test.ts
index bd59b7aa63..6269674023 100644
--- a/packages/backend/src/core/chart/charts/test.ts
+++ b/packages/backend/src/core/chart/charts/test.ts
@@ -3,6 +3,7 @@ import { DataSource } from 'typeorm';
 import { AppLockService } from '@/core/AppLockService.js';
 import { DI } from '@/di-symbols.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/test.js';
 import type { KVs } from '../core.js';
 
@@ -19,8 +20,9 @@ export default class TestChart extends Chart<typeof schema> {
 		private db: DataSource,
 
 		private appLockService: AppLockService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/charts/users.ts b/packages/backend/src/core/chart/charts/users.ts
index 4fdddcc0a3..b3187997cf 100644
--- a/packages/backend/src/core/chart/charts/users.ts
+++ b/packages/backend/src/core/chart/charts/users.ts
@@ -6,6 +6,7 @@ import { DI } from '@/di-symbols.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
 import { UsersRepository } from '@/models/index.js';
 import Chart from '../core.js';
+import { ChartLoggerService } from '../ChartLoggerService.js';
 import { name, schema } from './entities/users.js';
 import type { KVs } from '../core.js';
 
@@ -24,8 +25,9 @@ export default class UsersChart extends Chart<typeof schema> {
 
 		private appLockService: AppLockService,
 		private userEntityService: UserEntityService,
+		private chartLoggerService: ChartLoggerService,
 	) {
-		super(db, (k) => appLockService.getChartInsertLock(k), name, schema);
+		super(db, (k) => appLockService.getChartInsertLock(k), chartLoggerService.logger, name, schema);
 	}
 
 	protected async tickMajor(): Promise<Partial<KVs<typeof schema>>> {
diff --git a/packages/backend/src/core/chart/core.ts b/packages/backend/src/core/chart/core.ts
index 1933e80c7b..93a6c3ce05 100644
--- a/packages/backend/src/core/chart/core.ts
+++ b/packages/backend/src/core/chart/core.ts
@@ -7,11 +7,9 @@
 import * as nestedProperty from 'nested-property';
 import { EntitySchema, LessThan, Between } from 'typeorm';
 import { dateUTC, isTimeSame, isTimeBefore, subtractTime, addTime } from '@/misc/prelude/time.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import type { Repository, DataSource } from 'typeorm';
 
-const logger = new Logger('chart', 'white', process.env.NODE_ENV !== 'test');
-
 const columnPrefix = '___' as const;
 const uniqueTempColumnPrefix = 'unique_temp___' as const;
 const columnDot = '_' as const;
@@ -111,6 +109,8 @@ export function getJsonSchema<S extends Schema>(schema: S): ToJsonSchema<Unflatt
  */
 // eslint-disable-next-line import/no-default-export
 export default abstract class Chart<T extends Schema> {
+	#logger: Logger;
+
 	public schema: T;
 
 	private name: string;
@@ -231,10 +231,18 @@ export default abstract class Chart<T extends Schema> {
 
 	private lock: (key: string) => Promise<() => void>;
 
-	constructor(db: DataSource, lock: (key: string) => Promise<() => void>, name: string, schema: T, grouped = false) {
+	constructor(
+		db: DataSource,
+		lock: (key: string) => Promise<() => void>,
+		logger: Logger,
+		name: string,
+		schema: T,
+		grouped = false,
+	) {
 		this.name = name;
 		this.schema = schema;
 		this.lock = lock;
+		this.#logger = logger;
 
 		const { hour, day } = Chart.schemaToEntity(name, schema, grouped);
 		this.repositoryForHour = db.getRepository<{ id: number; group?: string | null; date: number; }>(hour);
@@ -325,7 +333,7 @@ export default abstract class Chart<T extends Schema> {
 			// 初期ログデータを作成
 			data = this.getNewLog(null);
 
-			logger.info(`${this.name + (group ? `:${group}` : '')}(${span}): Initial commit created`);
+			this.#logger.info(`${this.name + (group ? `:${group}` : '')}(${span}): Initial commit created`);
 		}
 
 		const date = Chart.dateToTimestamp(current);
@@ -355,7 +363,7 @@ export default abstract class Chart<T extends Schema> {
 				...columns,
 			}).then(x => repository.findOneByOrFail(x.identifiers[0])) as RawRecord<T>;
 
-			logger.info(`${this.name + (group ? `:${group}` : '')}(${span}): New commit created`);
+			this.#logger.info(`${this.name + (group ? `:${group}` : '')}(${span}): New commit created`);
 
 			return log;
 		} finally {
@@ -374,7 +382,7 @@ export default abstract class Chart<T extends Schema> {
 
 	public async save(): Promise<void> {
 		if (this.buffer.length === 0) {
-			logger.info(`${this.name}: Write skipped`);
+			this.#logger.info(`${this.name}: Write skipped`);
 			return;
 		}
 
@@ -473,7 +481,7 @@ export default abstract class Chart<T extends Schema> {
 					.execute(),
 			]);
 
-			logger.info(`${this.name + (logHour.group ? `:${logHour.group}` : '')}: Updated`);
+			this.#logger.info(`${this.name + (logHour.group ? `:${logHour.group}` : '')}: Updated`);
 
 			// TODO: この一連の処理が始まった後に新たにbufferに入ったものは消さないようにする
 			this.buffer = this.buffer.filter(q => q.group != null && (q.group !== logHour.group));
diff --git a/packages/backend/src/core/remote/RemoteLoggerService.ts b/packages/backend/src/core/remote/RemoteLoggerService.ts
index 7ce8fe6cfc..68246466c8 100644
--- a/packages/backend/src/core/remote/RemoteLoggerService.ts
+++ b/packages/backend/src/core/remote/RemoteLoggerService.ts
@@ -1,12 +1,14 @@
 import { Inject, Injectable } from '@nestjs/common';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
+import { LoggerService } from '@/core/LoggerService.js';
 
 @Injectable()
 export class RemoteLoggerService {
 	public logger: Logger;
 
 	constructor(
+		private loggerService: LoggerService,
 	) {
-		this.logger = new Logger('remote', 'cyan');
+		this.logger = this.loggerService.getLogger('remote', 'cyan');
 	}
 }
diff --git a/packages/backend/src/queue/QueueLoggerService.ts b/packages/backend/src/queue/QueueLoggerService.ts
index 4cdd4edfbb..a311470cc9 100644
--- a/packages/backend/src/queue/QueueLoggerService.ts
+++ b/packages/backend/src/queue/QueueLoggerService.ts
@@ -1,12 +1,14 @@
 import { Inject, Injectable } from '@nestjs/common';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
+import { LoggerService } from '@/core/LoggerService.js';
 
 @Injectable()
 export class QueueLoggerService {
 	public logger: Logger;
 
 	constructor(
+		private loggerService: LoggerService,
 	) {
-		this.logger = new Logger('queue', 'orange');
+		this.logger = this.loggerService.getLogger('queue', 'orange');
 	}
 }
diff --git a/packages/backend/src/server/FileServerService.ts b/packages/backend/src/server/FileServerService.ts
index 0f4246bfd1..4db9205e36 100644
--- a/packages/backend/src/server/FileServerService.ts
+++ b/packages/backend/src/server/FileServerService.ts
@@ -13,29 +13,24 @@ import { DI } from '@/di-symbols.js';
 import { createTemp } from '@/misc/create-temp.js';
 import { FILE_TYPE_BROWSERSAFE } from '@/const.js';
 import { StatusError } from '@/misc/status-error.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import { DownloadService } from '@/core/DownloadService.js';
 import { ImageProcessingService } from '@/core/ImageProcessingService.js';
 import { VideoProcessingService } from '@/core/VideoProcessingService.js';
 import { InternalStorageService } from '@/core/InternalStorageService.js';
 import { contentDisposition } from '@/misc/content-disposition.js';
 import { FileInfoService } from '@/core/FileInfoService.js';
-
-const serverLogger = new Logger('server', 'gray', false);
+import { LoggerService } from '@/core/LoggerService.js';
 
 const _filename = fileURLToPath(import.meta.url);
 const _dirname = dirname(_filename);
 
 const assets = `${_dirname}/../../server/file/assets/`;
 
-const commonReadableHandlerGenerator = (ctx: Koa.Context) => (e: Error): void => {
-	serverLogger.error(e);
-	ctx.status = 500;
-	ctx.set('Cache-Control', 'max-age=300');
-};
-
 @Injectable()
 export class FileServerService {
+	#logger: Logger;
+
 	constructor(
 		@Inject(DI.config)
 		private config: Config,
@@ -48,9 +43,19 @@ export class FileServerService {
 		private imageProcessingService: ImageProcessingService,
 		private videoProcessingService: VideoProcessingService,
 		private internalStorageService: InternalStorageService,
+		private loggerService: LoggerService,
 	) {
+		this.#logger = this.loggerService.getLogger('server', 'gray', false);
 	}
 
+	public commonReadableHandlerGenerator(ctx: Koa.Context) {
+		return (e: Error): void => {
+			this.#logger.error(e);
+			ctx.status = 500;
+			ctx.set('Cache-Control', 'max-age=300');
+		};
+	}
+	
 	public createServer() {
 		const app = new Koa();
 		app.use(cors());
@@ -134,7 +139,7 @@ export class FileServerService {
 					ctx.set('Content-Type', FILE_TYPE_BROWSERSAFE.includes(image.type) ? image.type : 'application/octet-stream');
 					ctx.set('Cache-Control', 'max-age=31536000, immutable');
 				} catch (err) {
-					serverLogger.error(`${err}`);
+					this.#logger.error(`${err}`);
 
 					if (err instanceof StatusError && err.isClientError) {
 						ctx.status = err.statusCode;
diff --git a/packages/backend/src/server/MediaProxyServerService.ts b/packages/backend/src/server/MediaProxyServerService.ts
index b9cee38f0a..5344d3a9f4 100644
--- a/packages/backend/src/server/MediaProxyServerService.ts
+++ b/packages/backend/src/server/MediaProxyServerService.ts
@@ -13,13 +13,14 @@ import { ImageProcessingService } from '@/core/ImageProcessingService.js';
 import type { IImage } from '@/core/ImageProcessingService.js';
 import { FILE_TYPE_BROWSERSAFE } from '@/const.js';
 import { StatusError } from '@/misc/status-error.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import { FileInfoService } from '@/core/FileInfoService.js';
-
-const serverLogger = new Logger('server', 'gray', false);
+import { LoggerService } from '@/core/LoggerService.js';
 
 @Injectable()
 export class MediaProxyServerService {
+	#logger: Logger;
+
 	constructor(
 		@Inject(DI.config)
 		private config: Config,
@@ -27,7 +28,9 @@ export class MediaProxyServerService {
 		private fileInfoService: FileInfoService,
 		private downloadService: DownloadService,
 		private imageProcessingService: ImageProcessingService,
+		private loggerService: LoggerService,
 	) {
+		this.#logger = this.loggerService.getLogger('server', 'gray', false);
 	}
 
 	public createServer() {
@@ -123,7 +126,7 @@ export class MediaProxyServerService {
 			ctx.set('Cache-Control', 'max-age=31536000, immutable');
 			ctx.body = image.data;
 		} catch (err) {
-			serverLogger.error(`${err}`);
+			this.#logger.error(`${err}`);
 	
 			if (err instanceof StatusError && (err.statusCode === 302 || err.isClientError)) {
 				ctx.status = err.statusCode;
diff --git a/packages/backend/src/server/ServerService.ts b/packages/backend/src/server/ServerService.ts
index 2ee7135c2a..8349e1e9f5 100644
--- a/packages/backend/src/server/ServerService.ts
+++ b/packages/backend/src/server/ServerService.ts
@@ -12,12 +12,13 @@ import { GlobalEventService } from '@/core/GlobalEventService.js';
 import { Config } from '@/config.js';
 import { UserProfilesRepository, UsersRepository } from '@/models/index.js';
 import { DI } from '@/di-symbols.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import { envOption } from '@/env.js';
 import * as Acct from '@/misc/acct.js';
 import { genIdenticon } from '@/misc/gen-identicon.js';
 import { createTemp } from '@/misc/create-temp.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
+import { LoggerService } from '@/core/LoggerService.js';
 import { ActivityPubServerService } from './ActivityPubServerService.js';
 import { NodeinfoServerService } from './NodeinfoServerService.js';
 import { ApiServerService } from './api/ApiServerService.js';
@@ -27,10 +28,10 @@ import { MediaProxyServerService } from './MediaProxyServerService.js';
 import { FileServerService } from './FileServerService.js';
 import { ClientServerService } from './web/ClientServerService.js';
 
-const serverLogger = new Logger('server', 'gray', false);
-
 @Injectable()
 export class ServerService {
+	#logger: Logger;
+
 	constructor(
 		@Inject(DI.config)
 		private config: Config,
@@ -51,7 +52,9 @@ export class ServerService {
 		private mediaProxyServerService: MediaProxyServerService,
 		private clientServerService: ClientServerService,
 		private globalEventService: GlobalEventService,
+		private loggerService: LoggerService,
 	) {
+		this.#logger = this.loggerService.getLogger('server', 'gray', false);
 	}
 
 	public launch() {
@@ -62,7 +65,7 @@ export class ServerService {
 		if (!['production', 'test'].includes(process.env.NODE_ENV ?? '')) {
 		// Logger
 			koa.use(koaLogger(str => {
-				serverLogger.info(str);
+				this.#logger.info(str);
 			}));
 
 			// Delay
@@ -151,16 +154,16 @@ export class ServerService {
 
 		this.streamingApiServerService.attachStreamingApi(server);
 
-		server.on('error', e => {
-			switch ((e as any).code) {
+		server.on('error', err => {
+			switch ((err as any).code) {
 				case 'EACCES':
-					serverLogger.error(`You do not have permission to listen on port ${this.config.port}.`);
+					this.#logger.error(`You do not have permission to listen on port ${this.config.port}.`);
 					break;
 				case 'EADDRINUSE':
-					serverLogger.error(`Port ${this.config.port} is already in use by another process.`);
+					this.#logger.error(`Port ${this.config.port} is already in use by another process.`);
 					break;
 				default:
-					serverLogger.error(e);
+					this.#logger.error(err);
 					break;
 			}
 
diff --git a/packages/backend/src/server/api/ApiLoggerService.ts b/packages/backend/src/server/api/ApiLoggerService.ts
index c8c5fec85c..c4fb25036e 100644
--- a/packages/backend/src/server/api/ApiLoggerService.ts
+++ b/packages/backend/src/server/api/ApiLoggerService.ts
@@ -1,12 +1,14 @@
 import { Inject, Injectable } from '@nestjs/common';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
+import { LoggerService } from '@/core/LoggerService.js';
 
 @Injectable()
 export class ApiLoggerService {
 	public logger: Logger;
 
 	constructor(
+		private loggerService: LoggerService,
 	) {
-		this.logger = new Logger('api');
+		this.logger = this.loggerService.getLogger('api');
 	}
 }
diff --git a/packages/backend/src/server/api/RateLimiterService.ts b/packages/backend/src/server/api/RateLimiterService.ts
index d390a47b8f..61b7b1ff47 100644
--- a/packages/backend/src/server/api/RateLimiterService.ts
+++ b/packages/backend/src/server/api/RateLimiterService.ts
@@ -2,17 +2,21 @@ import { Inject, Injectable } from '@nestjs/common';
 import Limiter from 'ratelimiter';
 import Redis from 'ioredis';
 import { DI } from '@/di-symbols.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
+import { LoggerService } from '@/core/LoggerService.js';
 import type { IEndpointMeta } from './endpoints.js';
 
-const logger = new Logger('limiter');
-
 @Injectable()
 export class RateLimiterService {
+	#logger: Logger;
+
 	constructor(
 		@Inject(DI.redis)
 		private redisClient: Redis.Redis,
+
+		private loggerService: LoggerService,
 	) {
+		this.#logger = this.loggerService.getLogger('limiter');
 	}
 
 	public limit(limitation: IEndpointMeta['limit'] & { key: NonNullable<string> }, actor: string) {
@@ -33,7 +37,7 @@ export class RateLimiterService {
 						return reject('ERR');
 					}
 		
-					logger.debug(`${actor} ${limitation.key} min remaining: ${info.remaining}`);
+					this.#logger.debug(`${actor} ${limitation.key} min remaining: ${info.remaining}`);
 		
 					if (info.remaining === 0) {
 						reject('BRIEF_REQUEST_INTERVAL');
@@ -61,7 +65,7 @@ export class RateLimiterService {
 						return reject('ERR');
 					}
 		
-					logger.debug(`${actor} ${limitation.key} max remaining: ${info.remaining}`);
+					this.#logger.debug(`${actor} ${limitation.key} max remaining: ${info.remaining}`);
 		
 					if (info.remaining === 0) {
 						reject('RATE_LIMIT_EXCEEDED');
diff --git a/packages/backend/src/server/web/UrlPreviewService.ts b/packages/backend/src/server/web/UrlPreviewService.ts
index 4e3b456144..726b158340 100644
--- a/packages/backend/src/server/web/UrlPreviewService.ts
+++ b/packages/backend/src/server/web/UrlPreviewService.ts
@@ -5,8 +5,9 @@ import { UsersRepository } from '@/models/index.js';
 import { Config } from '@/config.js';
 import { MetaService } from '@/core/MetaService.js';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
-import Logger from '@/logger.js';
+import type Logger from '@/logger.js';
 import { query } from '@/misc/prelude/url.js';
+import { LoggerService } from '@/core/LoggerService.js';
 import type Koa from 'koa';
 
 @Injectable()
@@ -22,8 +23,9 @@ export class UrlPreviewService {
 
 		private metaService: MetaService,
 		private httpRequestService: HttpRequestService,
+		private loggerService: LoggerService,
 	) {
-		this.#logger = new Logger('url-preview');
+		this.#logger = this.loggerService.getLogger('url-preview');
 	}
 
 	#wrap(url?: string): string | null {