Replace the values for SERVER_NAME, WORLD_NAME, and SERVER_PASSWORD. World data will be saved on a docker volume.

docker run -d --restart unless-stopped --name valheim -p 2456-2458:2456-2458/udp -e SERVER_NAME=myserver -e WORLD_NAME=myworld -e SERVER_PASSWORD=mypassword palp/valheim_server

1. git clone https://github.com/palp/valheim-server.git
2. cp env.sample .env
3. Replace values in .env
4. Create data directory and allow write, ex. mkdir ./data;chmod o+w ./data
5. docker-compose up -d