Move config in its own file

10 files changed, 319 insertions, 289 deletions

diff --git a/server/initializers/checker-after-init.ts b/server/initializers/checker-after-init.ts
index 85f752284..db3115085 100644
--- a/server/initializers/checker-after-init.ts
+++ b/server/initializers/checker-after-init.ts
@@ -4,19 +4,20 @@ import { UserModel } from '../models/account/user'
 import { ApplicationModel } from '../models/application/application'
 import { OAuthClientModel } from '../models/oauth/oauth-client'
 import { parse } from 'url'
-import { CONFIG } from './constants'
+import { CONFIG } from './config'
 import { logger } from '../helpers/logger'
 import { getServerActor } from '../helpers/utils'
 import { RecentlyAddedStrategy } from '../../shared/models/redundancy'
 import { isArray } from '../helpers/custom-validators/misc'
 import { uniq } from 'lodash'
 import { Emailer } from '../lib/emailer'
+import { WEBSERVER } from './constants'
 
 async function checkActivityPubUrls () {
   const actor = await getServerActor()
 
   const parsed = parse(actor.url)
-  if (CONFIG.WEBSERVER.HOST !== parsed.host) {
+  if (WEBSERVER.HOST !== parsed.host) {
     const NODE_ENV = config.util.getEnv('NODE_ENV')
     const NODE_CONFIG_DIR = config.util.getEnv('NODE_CONFIG_DIR')
 
diff --git a/server/initializers/config.ts b/server/initializers/config.ts
new file mode 100644
index 000000000..8dd62cba8
--- /dev/null
+++ b/server/initializers/config.ts
@@ -0,0 +1,255 @@
+import { IConfig } from 'config'
+import { dirname, join } from 'path'
+import { VideosRedundancy } from '../../shared/models'
+// Do not use barrels, remain constants as independent as possible
+import { buildPath, parseBytes, parseDuration, root } from '../helpers/core-utils'
+import { NSFWPolicyType } from '../../shared/models/videos/nsfw-policy.type'
+import * as bytes from 'bytes'
+
+// Use a variable to reload the configuration if we need
+let config: IConfig = require('config')
+
+const configChangedHandlers: Function[] = []
+
+const CONFIG = {
+  CUSTOM_FILE: getLocalConfigFilePath(),
+  LISTEN: {
+    PORT: config.get<number>('listen.port'),
+    HOSTNAME: config.get<string>('listen.hostname')
+  },
+  DATABASE: {
+    DBNAME: 'peertube' + config.get<string>('database.suffix'),
+    HOSTNAME: config.get<string>('database.hostname'),
+    PORT: config.get<number>('database.port'),
+    USERNAME: config.get<string>('database.username'),
+    PASSWORD: config.get<string>('database.password'),
+    POOL: {
+      MAX: config.get<number>('database.pool.max')
+    }
+  },
+  REDIS: {
+    HOSTNAME: config.has('redis.hostname') ? config.get<string>('redis.hostname') : null,
+    PORT: config.has('redis.port') ? config.get<number>('redis.port') : null,
+    SOCKET: config.has('redis.socket') ? config.get<string>('redis.socket') : null,
+    AUTH: config.has('redis.auth') ? config.get<string>('redis.auth') : null,
+    DB: config.has('redis.db') ? config.get<number>('redis.db') : null
+  },
+  SMTP: {
+    HOSTNAME: config.get<string>('smtp.hostname'),
+    PORT: config.get<number>('smtp.port'),
+    USERNAME: config.get<string>('smtp.username'),
+    PASSWORD: config.get<string>('smtp.password'),
+    TLS: config.get<boolean>('smtp.tls'),
+    DISABLE_STARTTLS: config.get<boolean>('smtp.disable_starttls'),
+    CA_FILE: config.get<string>('smtp.ca_file'),
+    FROM_ADDRESS: config.get<string>('smtp.from_address')
+  },
+  STORAGE: {
+    TMP_DIR: buildPath(config.get<string>('storage.tmp')),
+    AVATARS_DIR: buildPath(config.get<string>('storage.avatars')),
+    LOG_DIR: buildPath(config.get<string>('storage.logs')),
+    VIDEOS_DIR: buildPath(config.get<string>('storage.videos')),
+    STREAMING_PLAYLISTS_DIR: buildPath(config.get<string>('storage.streaming_playlists')),
+    REDUNDANCY_DIR: buildPath(config.get<string>('storage.redundancy')),
+    THUMBNAILS_DIR: buildPath(config.get<string>('storage.thumbnails')),
+    PREVIEWS_DIR: buildPath(config.get<string>('storage.previews')),
+    CAPTIONS_DIR: buildPath(config.get<string>('storage.captions')),
+    TORRENTS_DIR: buildPath(config.get<string>('storage.torrents')),
+    CACHE_DIR: buildPath(config.get<string>('storage.cache'))
+  },
+  WEBSERVER: {
+    SCHEME: config.get<boolean>('webserver.https') === true ? 'https' : 'http',
+    WS: config.get<boolean>('webserver.https') === true ? 'wss' : 'ws',
+    HOSTNAME: config.get<string>('webserver.hostname'),
+    PORT: config.get<number>('webserver.port')
+  },
+  TRUST_PROXY: config.get<string[]>('trust_proxy'),
+  LOG: {
+    LEVEL: config.get<string>('log.level')
+  },
+  SEARCH: {
+    REMOTE_URI: {
+      USERS: config.get<boolean>('search.remote_uri.users'),
+      ANONYMOUS: config.get<boolean>('search.remote_uri.anonymous')
+    }
+  },
+  TRENDING: {
+    VIDEOS: {
+      INTERVAL_DAYS: config.get<number>('trending.videos.interval_days')
+    }
+  },
+  REDUNDANCY: {
+    VIDEOS: {
+      CHECK_INTERVAL: parseDuration(config.get<string>('redundancy.videos.check_interval')),
+      STRATEGIES: buildVideosRedundancy(config.get<any[]>('redundancy.videos.strategies'))
+    }
+  },
+  CSP: {
+    ENABLED: config.get<boolean>('csp.enabled'),
+    REPORT_ONLY: config.get<boolean>('csp.report_only'),
+    REPORT_URI: config.get<boolean>('csp.report_uri')
+  },
+  TRACKER: {
+    ENABLED: config.get<boolean>('tracker.enabled'),
+    PRIVATE: config.get<boolean>('tracker.private'),
+    REJECT_TOO_MANY_ANNOUNCES: config.get<boolean>('tracker.reject_too_many_announces')
+  },
+  ADMIN: {
+    get EMAIL () { return config.get<string>('admin.email') }
+  },
+  CONTACT_FORM: {
+    get ENABLED () { return config.get<boolean>('contact_form.enabled') }
+  },
+  SIGNUP: {
+    get ENABLED () { return config.get<boolean>('signup.enabled') },
+    get LIMIT () { return config.get<number>('signup.limit') },
+    get REQUIRES_EMAIL_VERIFICATION () { return config.get<boolean>('signup.requires_email_verification') },
+    FILTERS: {
+      CIDR: {
+        get WHITELIST () { return config.get<string[]>('signup.filters.cidr.whitelist') },
+        get BLACKLIST () { return config.get<string[]>('signup.filters.cidr.blacklist') }
+      }
+    }
+  },
+  USER: {
+    get VIDEO_QUOTA () { return parseBytes(config.get<number>('user.video_quota')) },
+    get VIDEO_QUOTA_DAILY () { return parseBytes(config.get<number>('user.video_quota_daily')) }
+  },
+  TRANSCODING: {
+    get ENABLED () { return config.get<boolean>('transcoding.enabled') },
+    get ALLOW_ADDITIONAL_EXTENSIONS () { return config.get<boolean>('transcoding.allow_additional_extensions') },
+    get THREADS () { return config.get<number>('transcoding.threads') },
+    RESOLUTIONS: {
+      get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
+      get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
+      get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },
+      get '720p' () { return config.get<boolean>('transcoding.resolutions.720p') },
+      get '1080p' () { return config.get<boolean>('transcoding.resolutions.1080p') }
+    },
+    HLS: {
+      get ENABLED () { return config.get<boolean>('transcoding.hls.enabled') }
+    }
+  },
+  IMPORT: {
+    VIDEOS: {
+      HTTP: {
+        get ENABLED () { return config.get<boolean>('import.videos.http.enabled') }
+      },
+      TORRENT: {
+        get ENABLED () { return config.get<boolean>('import.videos.torrent.enabled') }
+      }
+    }
+  },
+  AUTO_BLACKLIST: {
+    VIDEOS: {
+      OF_USERS: {
+        get ENABLED () { return config.get<boolean>('auto_blacklist.videos.of_users.enabled') }
+      }
+    }
+  },
+  CACHE: {
+    PREVIEWS: {
+      get SIZE () { return config.get<number>('cache.previews.size') }
+    },
+    VIDEO_CAPTIONS: {
+      get SIZE () { return config.get<number>('cache.captions.size') }
+    }
+  },
+  INSTANCE: {
+    get NAME () { return config.get<string>('instance.name') },
+    get SHORT_DESCRIPTION () { return config.get<string>('instance.short_description') },
+    get DESCRIPTION () { return config.get<string>('instance.description') },
+    get TERMS () { return config.get<string>('instance.terms') },
+    get IS_NSFW () { return config.get<boolean>('instance.is_nsfw') },
+    get DEFAULT_CLIENT_ROUTE () { return config.get<string>('instance.default_client_route') },
+    get DEFAULT_NSFW_POLICY () { return config.get<NSFWPolicyType>('instance.default_nsfw_policy') },
+    CUSTOMIZATIONS: {
+      get JAVASCRIPT () { return config.get<string>('instance.customizations.javascript') },
+      get CSS () { return config.get<string>('instance.customizations.css') }
+    },
+    get ROBOTS () { return config.get<string>('instance.robots') },
+    get SECURITYTXT () { return config.get<string>('instance.securitytxt') },
+    get SECURITYTXT_CONTACT () { return config.get<string>('admin.email') }
+  },
+  SERVICES: {
+    TWITTER: {
+      get USERNAME () { return config.get<string>('services.twitter.username') },
+      get WHITELISTED () { return config.get<boolean>('services.twitter.whitelisted') }
+    }
+  },
+  FOLLOWERS: {
+    INSTANCE: {
+      get ENABLED () { return config.get<boolean>('followers.instance.enabled') },
+      get MANUAL_APPROVAL () { return config.get<boolean>('followers.instance.manual_approval') }
+    }
+  }
+}
+
+function registerConfigChangedHandler (fun: Function) {
+  configChangedHandlers.push(fun)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  CONFIG,
+  registerConfigChangedHandler
+}
+
+// ---------------------------------------------------------------------------
+
+function getLocalConfigFilePath () {
+  const configSources = config.util.getConfigSources()
+  if (configSources.length === 0) throw new Error('Invalid config source.')
+
+  let filename = 'local'
+  if (process.env.NODE_ENV) filename += `-${process.env.NODE_ENV}`
+  if (process.env.NODE_APP_INSTANCE) filename += `-${process.env.NODE_APP_INSTANCE}`
+
+  return join(dirname(configSources[ 0 ].name), filename + '.json')
+}
+
+function buildVideosRedundancy (objs: any[]): VideosRedundancy[] {
+  if (!objs) return []
+
+  if (!Array.isArray(objs)) return objs
+
+  return objs.map(obj => {
+    return Object.assign({}, obj, {
+      minLifetime: parseDuration(obj.min_lifetime),
+      size: bytes.parse(obj.size),
+      minViews: obj.min_views
+    })
+  })
+}
+
+export function reloadConfig () {
+
+  function directory () {
+    if (process.env.NODE_CONFIG_DIR) {
+      return process.env.NODE_CONFIG_DIR
+    }
+
+    return join(root(), 'config')
+  }
+
+  function purge () {
+    for (const fileName in require.cache) {
+      if (-1 === fileName.indexOf(directory())) {
+        continue
+      }
+
+      delete require.cache[fileName]
+    }
+
+    delete require.cache[require.resolve('config')]
+  }
+
+  purge()
+
+  config = require('config')
+
+  for (const configChangedHandler of configChangedHandlers) {
+    configChangedHandler()
+  }
+}
diff --git a/server/initializers/constants.ts b/server/initializers/constants.ts
index 739ea5502..3922d8515 100644
--- a/server/initializers/constants.ts
+++ b/server/initializers/constants.ts
@@ -1,20 +1,16 @@
-import { IConfig } from 'config'
-import { dirname, join } from 'path'
-import { JobType, VideoRateType, VideoState, VideosRedundancy } from '../../shared/models'
+import { join } from 'path'
+import { JobType, VideoRateType, VideoState } from '../../shared/models'
 import { ActivityPubActorType } from '../../shared/models/activitypub'
 import { FollowState } from '../../shared/models/actors'
 import { VideoAbuseState, VideoImportState, VideoPrivacy, VideoTranscodingFPS } from '../../shared/models/videos'
 // Do not use barrels, remain constants as independent as possible
-import { buildPath, isTestInstance, parseDuration, parseBytes, root, sanitizeHost, sanitizeUrl } from '../helpers/core-utils'
+import { isTestInstance, sanitizeHost, sanitizeUrl } from '../helpers/core-utils'
 import { NSFWPolicyType } from '../../shared/models/videos/nsfw-policy.type'
 import { invert } from 'lodash'
 import { CronRepeatOptions, EveryRepeatOptions } from 'bull'
-import * as bytes from 'bytes'
 import { VideoPlaylistPrivacy } from '../../shared/models/videos/playlist/video-playlist-privacy.model'
 import { VideoPlaylistType } from '../../shared/models/videos/playlist/video-playlist-type.model'
-
-// Use a variable to reload the configuration if we need
-let config: IConfig = require('config')
+import { CONFIG, registerConfigChangedHandler } from './config'
 
 // ---------------------------------------------------------------------------
 
@@ -32,6 +28,15 @@ const PAGINATION = {
   }
 }
 
+const WEBSERVER = {
+  URL: '',
+  HOST: '',
+  SCHEME: '',
+  WS: '',
+  HOSTNAME: '',
+  PORT: 0
+}
+
 // Sortable columns per schema
 const SORTABLE_COLUMNS = {
   USERS: [ 'id', 'username', 'createdAt' ],
@@ -102,7 +107,7 @@ const REMOTE_SCHEME = {
 }
 
 // TODO: remove 'video-file'
-const JOB_ATTEMPTS: { [ id in (JobType | 'video-file') ]: number } = {
+const JOB_ATTEMPTS: { [id in (JobType | 'video-file')]: number } = {
   'activitypub-http-broadcast': 5,
   'activitypub-http-unicast': 5,
   'activitypub-http-fetcher': 5,
@@ -115,7 +120,7 @@ const JOB_ATTEMPTS: { [ id in (JobType | 'video-file') ]: number } = {
   'videos-views': 1,
   'activitypub-refresher': 1
 }
-const JOB_CONCURRENCY: { [ id in (JobType | 'video-file') ]: number } = {
+const JOB_CONCURRENCY: { [id in (JobType | 'video-file')]: number } = {
   'activitypub-http-broadcast': 1,
   'activitypub-http-unicast': 5,
   'activitypub-http-fetcher': 1,
@@ -128,7 +133,7 @@ const JOB_CONCURRENCY: { [ id in (JobType | 'video-file') ]: number } = {
   'videos-views': 1,
   'activitypub-refresher': 1
 }
-const JOB_TTL: { [ id in (JobType | 'video-file') ]: number } = {
+const JOB_TTL: { [id in (JobType | 'video-file')]: number } = {
   'activitypub-http-broadcast': 60000 * 10, // 10 minutes
   'activitypub-http-unicast': 60000 * 10, // 10 minutes
   'activitypub-http-fetcher': 60000 * 10, // 10 minutes
@@ -163,184 +168,6 @@ let SCHEDULER_INTERVALS_MS = {
 
 // ---------------------------------------------------------------------------
 
-const CONFIG = {
-  CUSTOM_FILE: getLocalConfigFilePath(),
-  LISTEN: {
-    PORT: config.get<number>('listen.port'),
-    HOSTNAME: config.get<string>('listen.hostname')
-  },
-  DATABASE: {
-    DBNAME: 'peertube' + config.get<string>('database.suffix'),
-    HOSTNAME: config.get<string>('database.hostname'),
-    PORT: config.get<number>('database.port'),
-    USERNAME: config.get<string>('database.username'),
-    PASSWORD: config.get<string>('database.password'),
-    POOL: {
-      MAX: config.get<number>('database.pool.max')
-    }
-  },
-  REDIS: {
-    HOSTNAME: config.has('redis.hostname') ? config.get<string>('redis.hostname') : null,
-    PORT: config.has('redis.port') ? config.get<number>('redis.port') : null,
-    SOCKET: config.has('redis.socket') ? config.get<string>('redis.socket') : null,
-    AUTH: config.has('redis.auth') ? config.get<string>('redis.auth') : null,
-    DB: config.has('redis.db') ? config.get<number>('redis.db') : null
-  },
-  SMTP: {
-    HOSTNAME: config.get<string>('smtp.hostname'),
-    PORT: config.get<number>('smtp.port'),
-    USERNAME: config.get<string>('smtp.username'),
-    PASSWORD: config.get<string>('smtp.password'),
-    TLS: config.get<boolean>('smtp.tls'),
-    DISABLE_STARTTLS: config.get<boolean>('smtp.disable_starttls'),
-    CA_FILE: config.get<string>('smtp.ca_file'),
-    FROM_ADDRESS: config.get<string>('smtp.from_address')
-  },
-  STORAGE: {
-    TMP_DIR: buildPath(config.get<string>('storage.tmp')),
-    AVATARS_DIR: buildPath(config.get<string>('storage.avatars')),
-    LOG_DIR: buildPath(config.get<string>('storage.logs')),
-    VIDEOS_DIR: buildPath(config.get<string>('storage.videos')),
-    STREAMING_PLAYLISTS_DIR: buildPath(config.get<string>('storage.streaming_playlists')),
-    REDUNDANCY_DIR: buildPath(config.get<string>('storage.redundancy')),
-    THUMBNAILS_DIR: buildPath(config.get<string>('storage.thumbnails')),
-    PREVIEWS_DIR: buildPath(config.get<string>('storage.previews')),
-    CAPTIONS_DIR: buildPath(config.get<string>('storage.captions')),
-    TORRENTS_DIR: buildPath(config.get<string>('storage.torrents')),
-    CACHE_DIR: buildPath(config.get<string>('storage.cache'))
-  },
-  WEBSERVER: {
-    SCHEME: config.get<boolean>('webserver.https') === true ? 'https' : 'http',
-    WS: config.get<boolean>('webserver.https') === true ? 'wss' : 'ws',
-    HOSTNAME: config.get<string>('webserver.hostname'),
-    PORT: config.get<number>('webserver.port'),
-    URL: '',
-    HOST: ''
-  },
-  TRUST_PROXY: config.get<string[]>('trust_proxy'),
-  LOG: {
-    LEVEL: config.get<string>('log.level')
-  },
-  SEARCH: {
-    REMOTE_URI: {
-      USERS: config.get<boolean>('search.remote_uri.users'),
-      ANONYMOUS: config.get<boolean>('search.remote_uri.anonymous')
-    }
-  },
-  TRENDING: {
-    VIDEOS: {
-      INTERVAL_DAYS: config.get<number>('trending.videos.interval_days')
-    }
-  },
-  REDUNDANCY: {
-    VIDEOS: {
-      CHECK_INTERVAL: parseDuration(config.get<string>('redundancy.videos.check_interval')),
-      STRATEGIES: buildVideosRedundancy(config.get<any[]>('redundancy.videos.strategies'))
-    }
-  },
-  CSP: {
-    ENABLED: config.get<boolean>('csp.enabled'),
-    REPORT_ONLY: config.get<boolean>('csp.report_only'),
-    REPORT_URI: config.get<boolean>('csp.report_uri')
-  },
-  TRACKER: {
-    ENABLED: config.get<boolean>('tracker.enabled'),
-    PRIVATE: config.get<boolean>('tracker.private'),
-    REJECT_TOO_MANY_ANNOUNCES: config.get<boolean>('tracker.reject_too_many_announces')
-  },
-  ADMIN: {
-    get EMAIL () { return config.get<string>('admin.email') }
-  },
-  CONTACT_FORM: {
-    get ENABLED () { return config.get<boolean>('contact_form.enabled') }
-  },
-  SIGNUP: {
-    get ENABLED () { return config.get<boolean>('signup.enabled') },
-    get LIMIT () { return config.get<number>('signup.limit') },
-    get REQUIRES_EMAIL_VERIFICATION () { return config.get<boolean>('signup.requires_email_verification') },
-    FILTERS: {
-      CIDR: {
-        get WHITELIST () { return config.get<string[]>('signup.filters.cidr.whitelist') },
-        get BLACKLIST () { return config.get<string[]>('signup.filters.cidr.blacklist') }
-      }
-    }
-  },
-  USER: {
-    get VIDEO_QUOTA () { return parseBytes(config.get<number>('user.video_quota')) },
-    get VIDEO_QUOTA_DAILY () { return parseBytes(config.get<number>('user.video_quota_daily')) }
-  },
-  TRANSCODING: {
-    get ENABLED () { return config.get<boolean>('transcoding.enabled') },
-    get ALLOW_ADDITIONAL_EXTENSIONS () { return config.get<boolean>('transcoding.allow_additional_extensions') },
-    get THREADS () { return config.get<number>('transcoding.threads') },
-    RESOLUTIONS: {
-      get '240p' () { return config.get<boolean>('transcoding.resolutions.240p') },
-      get '360p' () { return config.get<boolean>('transcoding.resolutions.360p') },
-      get '480p' () { return config.get<boolean>('transcoding.resolutions.480p') },
-      get '720p' () { return config.get<boolean>('transcoding.resolutions.720p') },
-      get '1080p' () { return config.get<boolean>('transcoding.resolutions.1080p') }
-    },
-    HLS: {
-      get ENABLED () { return config.get<boolean>('transcoding.hls.enabled') }
-    }
-  },
-  IMPORT: {
-    VIDEOS: {
-      HTTP: {
-        get ENABLED () { return config.get<boolean>('import.videos.http.enabled') }
-      },
-      TORRENT: {
-        get ENABLED () { return config.get<boolean>('import.videos.torrent.enabled') }
-      }
-    }
-  },
-  AUTO_BLACKLIST: {
-    VIDEOS: {
-      OF_USERS: {
-        get ENABLED () { return config.get<boolean>('auto_blacklist.videos.of_users.enabled') }
-      }
-    }
-  },
-  CACHE: {
-    PREVIEWS: {
-      get SIZE () { return config.get<number>('cache.previews.size') }
-    },
-    VIDEO_CAPTIONS: {
-      get SIZE () { return config.get<number>('cache.captions.size') }
-    }
-  },
-  INSTANCE: {
-    get NAME () { return config.get<string>('instance.name') },
-    get SHORT_DESCRIPTION () { return config.get<string>('instance.short_description') },
-    get DESCRIPTION () { return config.get<string>('instance.description') },
-    get TERMS () { return config.get<string>('instance.terms') },
-    get IS_NSFW () { return config.get<boolean>('instance.is_nsfw') },
-    get DEFAULT_CLIENT_ROUTE () { return config.get<string>('instance.default_client_route') },
-    get DEFAULT_NSFW_POLICY () { return config.get<NSFWPolicyType>('instance.default_nsfw_policy') },
-    CUSTOMIZATIONS: {
-      get JAVASCRIPT () { return config.get<string>('instance.customizations.javascript') },
-      get CSS () { return config.get<string>('instance.customizations.css') }
-    },
-    get ROBOTS () { return config.get<string>('instance.robots') },
-    get SECURITYTXT () { return config.get<string>('instance.securitytxt') },
-    get SECURITYTXT_CONTACT () { return config.get<string>('admin.email') }
-  },
-  SERVICES: {
-    TWITTER: {
-      get USERNAME () { return config.get<string>('services.twitter.username') },
-      get WHITELISTED () { return config.get<boolean>('services.twitter.whitelisted') }
-    }
-  },
-  FOLLOWERS: {
-    INSTANCE: {
-      get ENABLED () { return config.get<boolean>('followers.instance.enabled') },
-      get MANUAL_APPROVAL () { return config.get<boolean>('followers.instance.manual_approval') }
-    }
-  }
-}
-
-// ---------------------------------------------------------------------------
-
 let CONSTRAINTS_FIELDS = {
   USERS: {
     NAME: { min: 1, max: 120 }, // Length
@@ -517,38 +344,38 @@ const VIDEO_LICENCES = {
 const VIDEO_LANGUAGES = buildLanguages()
 
 const VIDEO_PRIVACIES = {
-  [VideoPrivacy.PUBLIC]: 'Public',
-  [VideoPrivacy.UNLISTED]: 'Unlisted',
-  [VideoPrivacy.PRIVATE]: 'Private'
+  [ VideoPrivacy.PUBLIC ]: 'Public',
+  [ VideoPrivacy.UNLISTED ]: 'Unlisted',
+  [ VideoPrivacy.PRIVATE ]: 'Private'
 }
 
 const VIDEO_STATES = {
-  [VideoState.PUBLISHED]: 'Published',
-  [VideoState.TO_TRANSCODE]: 'To transcode',
-  [VideoState.TO_IMPORT]: 'To import'
+  [ VideoState.PUBLISHED ]: 'Published',
+  [ VideoState.TO_TRANSCODE ]: 'To transcode',
+  [ VideoState.TO_IMPORT ]: 'To import'
 }
 
 const VIDEO_IMPORT_STATES = {
-  [VideoImportState.FAILED]: 'Failed',
-  [VideoImportState.PENDING]: 'Pending',
-  [VideoImportState.SUCCESS]: 'Success'
+  [ VideoImportState.FAILED ]: 'Failed',
+  [ VideoImportState.PENDING ]: 'Pending',
+  [ VideoImportState.SUCCESS ]: 'Success'
 }
 
 const VIDEO_ABUSE_STATES = {
-  [VideoAbuseState.PENDING]: 'Pending',
-  [VideoAbuseState.REJECTED]: 'Rejected',
-  [VideoAbuseState.ACCEPTED]: 'Accepted'
+  [ VideoAbuseState.PENDING ]: 'Pending',
+  [ VideoAbuseState.REJECTED ]: 'Rejected',
+  [ VideoAbuseState.ACCEPTED ]: 'Accepted'
 }
 
 const VIDEO_PLAYLIST_PRIVACIES = {
-  [VideoPlaylistPrivacy.PUBLIC]: 'Public',
-  [VideoPlaylistPrivacy.UNLISTED]: 'Unlisted',
-  [VideoPlaylistPrivacy.PRIVATE]: 'Private'
+  [ VideoPlaylistPrivacy.PUBLIC ]: 'Public',
+  [ VideoPlaylistPrivacy.UNLISTED ]: 'Unlisted',
+  [ VideoPlaylistPrivacy.PRIVATE ]: 'Private'
 }
 
 const VIDEO_PLAYLIST_TYPES = {
-  [VideoPlaylistType.REGULAR]: 'Regular',
-  [VideoPlaylistType.WATCH_LATER]: 'Watch later'
+  [ VideoPlaylistType.REGULAR ]: 'Regular',
+  [ VideoPlaylistType.WATCH_LATER ]: 'Watch later'
 }
 
 const MIMETYPES = {
@@ -634,7 +461,7 @@ const USER_PASSWORD_RESET_LIFETIME = 60000 * 5 // 5 minutes
 
 const USER_EMAIL_VERIFY_LIFETIME = 60000 * 60 // 60 minutes
 
-const NSFW_POLICY_TYPES: { [ id: string]: NSFWPolicyType } = {
+const NSFW_POLICY_TYPES: { [ id: string ]: NSFWPolicyType } = {
   DO_NOT_LIST: 'do_not_list',
   BLUR: 'blur',
   DISPLAY: 'display'
@@ -765,14 +592,14 @@ if (isTestInstance() === true) {
   SCHEDULER_INTERVALS_MS.actorFollowScores = 1000
   SCHEDULER_INTERVALS_MS.removeOldJobs = 10000
   SCHEDULER_INTERVALS_MS.updateVideos = 5000
-  REPEAT_JOBS['videos-views'] = { every: 5000 }
+  REPEAT_JOBS[ 'videos-views' ] = { every: 5000 }
 
   REDUNDANCY.VIDEOS.RANDOMIZED_FACTOR = 1
 
   VIDEO_VIEW_LIFETIME = 1000 // 1 second
   CONTACT_FORM_LIFETIME = 1000 // 1 second
 
-  JOB_ATTEMPTS['email'] = 1
+  JOB_ATTEMPTS[ 'email' ] = 1
 
   FILES_CACHE.VIDEO_CAPTIONS.MAX_AGE = 3000
   MEMOIZE_TTL.OVERVIEWS_SAMPLE = 1
@@ -783,9 +610,15 @@ if (isTestInstance() === true) {
 
 updateWebserverUrls()
 
+registerConfigChangedHandler(() => {
+  updateWebserverUrls()
+  updateWebserverConfig()
+})
+
 // ---------------------------------------------------------------------------
 
 export {
+  WEBSERVER,
   API_VERSION,
   HLS_REDUNDANCY_DIRECTORY,
   P2P_MEDIA_LOADER_PEER_VERSION,
@@ -794,7 +627,6 @@ export {
   BCRYPT_SALT_SIZE,
   TRACKER_RATE_LIMITS,
   FILES_CACHE,
-  CONFIG,
   CONSTRAINTS_FIELDS,
   EMBED_SIZE,
   REDUNDANCY,
@@ -857,17 +689,6 @@ export {
 
 // ---------------------------------------------------------------------------
 
-function getLocalConfigFilePath () {
-  const configSources = config.util.getConfigSources()
-  if (configSources.length === 0) throw new Error('Invalid config source.')
-
-  let filename = 'local'
-  if (process.env.NODE_ENV) filename += `-${process.env.NODE_ENV}`
-  if (process.env.NODE_APP_INSTANCE) filename += `-${process.env.NODE_APP_INSTANCE}`
-
-  return join(dirname(configSources[ 0 ].name), filename + '.json')
-}
-
 function buildVideoMimetypeExt () {
   const data = {
     'video/webm': '.webm',
@@ -890,8 +711,12 @@ function buildVideoMimetypeExt () {
 }
 
 function updateWebserverUrls () {
-  CONFIG.WEBSERVER.URL = sanitizeUrl(CONFIG.WEBSERVER.SCHEME + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT)
-  CONFIG.WEBSERVER.HOST = sanitizeHost(CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT, REMOTE_SCHEME.HTTP)
+  WEBSERVER.URL = sanitizeUrl(CONFIG.WEBSERVER.SCHEME + '://' + CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT)
+  WEBSERVER.HOST = sanitizeHost(CONFIG.WEBSERVER.HOSTNAME + ':' + CONFIG.WEBSERVER.PORT, REMOTE_SCHEME.HTTP)
+  WEBSERVER.SCHEME = CONFIG.WEBSERVER.SCHEME
+  WEBSERVER.WS = CONFIG.WEBSERVER.WS
+  WEBSERVER.HOSTNAME = CONFIG.WEBSERVER.HOSTNAME
+  WEBSERVER.PORT = CONFIG.WEBSERVER.PORT
 }
 
 function updateWebserverConfig () {
@@ -907,20 +732,6 @@ function buildVideosExtname () {
     : [ '.mp4', '.ogv', '.webm' ]
 }
 
-function buildVideosRedundancy (objs: any[]): VideosRedundancy[] {
-  if (!objs) return []
-
-  if (!Array.isArray(objs)) return objs
-
-  return objs.map(obj => {
-    return Object.assign({}, obj, {
-      minLifetime: parseDuration(obj.min_lifetime),
-      size: bytes.parse(obj.size),
-      minViews: obj.min_views
-    })
-  })
-}
-
 function buildLanguages () {
   const iso639 = require('iso-639-3')
 
@@ -953,42 +764,12 @@ function buildLanguages () {
   iso639
     .filter(l => {
       return (l.iso6391 !== null && l.type === 'living') ||
-        additionalLanguages[l.iso6393] === true
+        additionalLanguages[ l.iso6393 ] === true
     })
-    .forEach(l => languages[l.iso6391 || l.iso6393] = l.name)
+    .forEach(l => languages[ l.iso6391 || l.iso6393 ] = l.name)
 
   // Override Occitan label
-  languages['oc'] = 'Occitan'
+  languages[ 'oc' ] = 'Occitan'
 
   return languages
 }
-
-export function reloadConfig () {
-
-  function directory () {
-    if (process.env.NODE_CONFIG_DIR) {
-      return process.env.NODE_CONFIG_DIR
-    }
-
-    return join(root(), 'config')
-  }
-
-  function purge () {
-    for (const fileName in require.cache) {
-      if (-1 === fileName.indexOf(directory())) {
-        continue
-      }
-
-      delete require.cache[fileName]
-    }
-
-    delete require.cache[require.resolve('config')]
-  }
-
-  purge()
-
-  config = require('config')
-
-  updateWebserverConfig()
-  updateWebserverUrls()
-}
diff --git a/server/initializers/database.ts b/server/initializers/database.ts
index 541ebbecf..872a56220 100644
--- a/server/initializers/database.ts
+++ b/server/initializers/database.ts
@@ -21,7 +21,7 @@ import { VideoCommentModel } from '../models/video/video-comment'
 import { VideoFileModel } from '../models/video/video-file'
 import { VideoShareModel } from '../models/video/video-share'
 import { VideoTagModel } from '../models/video/video-tag'
-import { CONFIG } from './constants'
+import { CONFIG } from './config'
 import { ScheduleVideoUpdateModel } from '../models/video/schedule-video-update'
 import { VideoCaptionModel } from '../models/video/video-caption'
 import { VideoImportModel } from '../models/video/video-import'
diff --git a/server/initializers/installer.ts b/server/initializers/installer.ts
index 07af96b68..127449577 100644
--- a/server/initializers/installer.ts
+++ b/server/initializers/installer.ts
@@ -6,9 +6,10 @@ import { UserModel } from '../models/account/user'
 import { ApplicationModel } from '../models/application/application'
 import { OAuthClientModel } from '../models/oauth/oauth-client'
 import { applicationExist, clientsExist, usersExist } from './checker-after-init'
-import { FILES_CACHE, CONFIG, HLS_STREAMING_PLAYLIST_DIRECTORY, LAST_MIGRATION_VERSION } from './constants'
+import { FILES_CACHE, HLS_STREAMING_PLAYLIST_DIRECTORY, LAST_MIGRATION_VERSION } from './constants'
 import { sequelizeTypescript } from './database'
-import { remove, ensureDir } from 'fs-extra'
+import { ensureDir, remove } from 'fs-extra'
+import { CONFIG } from './config'
 
 async function installApplication () {
   try {
diff --git a/server/initializers/migrations/0075-video-resolutions.ts b/server/initializers/migrations/0075-video-resolutions.ts
index 26a188e5e..e4f26cb77 100644
--- a/server/initializers/migrations/0075-video-resolutions.ts
+++ b/server/initializers/migrations/0075-video-resolutions.ts
@@ -1,6 +1,6 @@
 import * as Sequelize from 'sequelize'
 import { join } from 'path'
-import { CONFIG } from '../../initializers/constants'
+import { CONFIG } from '../../initializers/config'
 import { getVideoFileResolution } from '../../helpers/ffmpeg-utils'
 import { readdir, rename } from 'fs-extra'
 
diff --git a/server/initializers/migrations/0140-actor-url.ts b/server/initializers/migrations/0140-actor-url.ts
index e64ee3487..020499391 100644
--- a/server/initializers/migrations/0140-actor-url.ts
+++ b/server/initializers/migrations/0140-actor-url.ts
@@ -1,13 +1,13 @@
 import * as Sequelize from 'sequelize'
-import { CONFIG } from '../constants'
+import { WEBSERVER } from '../constants'
 
 async function up (utils: {
   transaction: Sequelize.Transaction,
   queryInterface: Sequelize.QueryInterface,
   sequelize: Sequelize.Sequelize
 }): Promise<void> {
-  const toReplace = CONFIG.WEBSERVER.HOSTNAME + ':443'
-  const by = CONFIG.WEBSERVER.HOST
+  const toReplace = WEBSERVER.HOSTNAME + ':443'
+  const by = WEBSERVER.HOST
   const replacer = column => `replace("${column}", '${toReplace}', '${by}')`
 
   {
diff --git a/server/initializers/migrations/0235-delete-some-video-indexes.ts b/server/initializers/migrations/0235-delete-some-video-indexes.ts
index e362f240c..5964b0dc5 100644
--- a/server/initializers/migrations/0235-delete-some-video-indexes.ts
+++ b/server/initializers/migrations/0235-delete-some-video-indexes.ts
@@ -1,8 +1,4 @@
 import * as Sequelize from 'sequelize'
-import { createClient } from 'redis'
-import { CONFIG } from '../constants'
-import { JobQueue } from '../../lib/job-queue'
-import { initDatabaseModels } from '../database'
 
 async function up (utils: {
   transaction: Sequelize.Transaction
diff --git a/server/initializers/migrations/0240-drop-old-indexes.ts b/server/initializers/migrations/0240-drop-old-indexes.ts
index ba961e3f9..39868fa2d 100644
--- a/server/initializers/migrations/0240-drop-old-indexes.ts
+++ b/server/initializers/migrations/0240-drop-old-indexes.ts
@@ -1,8 +1,4 @@
 import * as Sequelize from 'sequelize'
-import { createClient } from 'redis'
-import { CONFIG } from '../constants'
-import { JobQueue } from '../../lib/job-queue'
-import { initDatabaseModels } from '../database'
 
 async function up (utils: {
   transaction: Sequelize.Transaction
diff --git a/server/initializers/migrations/0345-video-playlists.ts b/server/initializers/migrations/0345-video-playlists.ts
index 11670b11d..6953f5553 100644
--- a/server/initializers/migrations/0345-video-playlists.ts
+++ b/server/initializers/migrations/0345-video-playlists.ts
@@ -1,7 +1,7 @@
 import * as Sequelize from 'sequelize'
-import { CONFIG } from '../constants'
 import { VideoPlaylistPrivacy, VideoPlaylistType } from '../../../shared/models/videos'
 import * as uuidv4 from 'uuid/v4'
+import { WEBSERVER } from '../constants'
 
 async function up (utils: {
   transaction: Sequelize.Transaction,
@@ -57,7 +57,7 @@ CREATE TABLE IF NOT EXISTS "videoPlaylistElement"
     for (const username of usernames) {
       const uuid = uuidv4()
 
-      const baseUrl = CONFIG.WEBSERVER.URL + '/video-playlists/' + uuid
+      const baseUrl = WEBSERVER.URL + '/video-playlists/' + uuid
       const query = `
  INSERT INTO "videoPlaylist" ("url", "uuid", "name", "privacy", "type", "ownerAccountId", "createdAt", "updatedAt")
  SELECT '${baseUrl}' AS "url",