Refresh net.core.somaxcomm (or any sysctl property) for docker containers

Question

I am trying to change net.core.somaxconn for docker container to be able to have larger queue of requests for my web application.

On OS, outside docker,

Answer 1

In docker 3.1 there is support for specifying sysctl. note the
sysctls:
    - net.core.somaxconn=1024

My example docker-compose file

version: '3.1'                                                                   
services:                                                                        
  my_redis_master:                                                             
    image: redis                                                                 
    restart: always                                                              
    command: redis-server /etc/redis/redis.conf                                  
    volumes:                                                                     
      - /data/my_dir/redis:/data                                         
      - /data/my_dir/logs/redis:/var/tmp/                                
      - ./redis/redis-master.conf:/etc/redis/redis.conf                          
    sysctls:                                                                     
      - net.core.somaxconn=1024                                                  
    ports:                                                                       
      - "18379:6379"