Server configuration
you need to download the Lavalink server (lavalink-devs/Lavalink) and run it, or use other public nodes.
If you need public nodes, you can refer to the following repository.
Deploying with Binary
Download binaries from the Download Server, GitHub releases or GitHub actions.
Put an application.yml file in your working directory. (Example here)
Run with java -jar Lavalink.jar from the same directory.
Deploying with Docker
Docker images can be found on Github packages or Docker Hub.
Install Docker & Docker Compose
Create a docker-compose.yml with the following content:
version: "3.8"
services:
    lavalink:
        image: fredboat/lavalink:4.0.7 # pin the image version to Lavalink v4
        container_name: lavalink_v4
        restart: unless-stopped
        environment:
            - _JAVA_OPTIONS=-Xmx6G # set Java options here
            - SERVER_PORT=2333 # set lavalink server port
            - LAVALINK_SERVER_PASSWORD=youshallnotpass # set password for lavalink
        volumes:
            - ./application.yml:/opt/Lavalink/application.yml # mount application.yml from the same directory or use environment variables
            - ./plugins/:/opt/Lavalink/plugins/ # persist plugins between restarts, make sure to set the correct permissions (user: 322, group: 322)
        networks:
            - lavalink
        expose:
            - 2333 # lavalink exposes port 2333 to connect to for other containers (this is for documentation purposes only)
        ports:
            - 2333:2333 # you only need this if you want to make your lavalink accessible from outside of containers
networks:
    lavalink: # create a lavalink network you can add other containers to, to give them access to Lavalink
        name: lavalink
Place the application.yml in the same directory as docker-compose.yml.
server: # REST and WS server
  port: 2333
  address: 0.0.0.0
plugins:
#  name: # Name of the plugin
#    some_key: some_value # Some key-value pair for the plugin
#    another_key: another_value
lavalink:
  plugins:
      # https://github.com/lavalink-devs/youtube-source
    - dependency: "dev.lavalink.youtube:youtube-plugin:1.7.2"
      repository: "https://maven.lavalink.dev/releases"
  server:
    password: "youshallnotpass"
    sources:
      youtube: false
      bandcamp: true
      soundcloud: true
      twitch: true
      vimeo: true
      http: true
      local: false
    filters: # All filters are enabled by default
      volume: true
      equalizer: true
      karaoke: true
      timescale: true
      tremolo: true
      vibrato: true
      distortion: true
      rotation: true
      channelMix: true
      lowPass: true
    bufferDurationMs: 400 # The duration of the NAS buffer. Higher values fare better against longer GC pauses. Duration <= 0 to disable JDA-NAS. Minimum of 40ms, lower values may introduce pauses.
    frameBufferDurationMs: 5000 # How many milliseconds of audio to keep buffered
    opusEncodingQuality: 10 # Opus encoder quality. Valid values range from 0 to 10, where 10 is best quality but is the most expensive on the CPU.
    resamplingQuality: LOW # Quality of resampling operations. Valid values are LOW, MEDIUM and HIGH, where HIGH uses the most CPU.
    trackStuckThresholdMs: 10000 # The threshold for how long a track can be stuck. A track is stuck if does not return any audio data.
    useSeekGhosting: true # Seek ghosting is the effect where whilst a seek is in progress, the audio buffer is read from until empty, or until seek is ready.
    youtubePlaylistLoadLimit: 6 # Number of pages at 100 each
    playerUpdateInterval: 5 # How frequently to send player updates to clients, in seconds
    youtubeSearchEnabled: true
    soundcloudSearchEnabled: true
    gc-warnings: true
    #ratelimit:
      #ipBlocks: ["1.0.0.0/8", "..."] # list of ip blocks
      #excludedIps: ["...", "..."] # ips which should be explicit excluded from usage by lavalink
      #strategy: "RotateOnBan" # RotateOnBan | LoadBalance | NanoSwitch | RotatingNanoSwitch
      #searchTriggersFail: true # Whether a search 429 should trigger marking the ip as failing
      #retryLimit: -1 # -1 = use default lavaplayer value | 0 = infinity | >0 = retry will happen this numbers times
    #youtubeConfig: # Required for avoiding all age restrictions by YouTube, some restricted videos still can be played without.
      #email: "" # Email of Google account
      #password: "" # Password of Google account
    #httpConfig: # Useful for blocking bad-actors from ip-grabbing your music node and attacking it, this way only the http proxy will be attacked
      #proxyHost: "localhost" # Hostname of the proxy, (ip or domain)
      #proxyPort: 3128 # Proxy port, 3128 is the default for squidProxy
      #proxyUser: "" # Optional user for basic authentication fields, leave blank if you don't use basic auth
      #proxyPassword: "" # Password for basic authentication
metrics:
  prometheus:
    enabled: false
    endpoint: /metrics
sentry:
  dsn: ""
  environment: ""
#  tags:
#    some_key: some_value
#    another_key: another_value
logging:
  file:
    path: ./logs/
  level:
    root: INFO
    lavalink: INFO
  request:
    enabled: true
    includeClientInfo: true
    includeHeaders: false
    includeQueryString: true
    includePayload: true
    maxPayloadLength: 10000
  logback:
    rollingpolicy:
      max-file-size: 1GB
      max-history: 30