docker-compose file to demonstrate sysctls for docker stacks 🐳

docker-compose.redis.yml

version: '3.7'
services:
  redis:
    image: redis:alpine
    deploy:
      mode: global
      restart_policy:
        condition: on-failure
    ports:
      - 6379:6379
    # New sysctls feature introduced in 19.03.0
    sysctls:
      net.core.somaxconn: '1024'
      # Take some more suggestions from here https://redis.io/topics/admin

stack-deploy.sh

#!/bin/bash

# stack deploy this very loved gist
curl -sL https://git.io/fj5Mu  | docker stack deploy --compose-file - redis

# or services 
docker service create --sysctl net.core.somaxconn=1024 --name redis_service redis:alpine sh -c "sysctl net.core.somaxconn ; sleep 100"