I am trying to set a few sysctl values.
Basically the following 

sysctl -w \
   net.ipv4.tcp_keepalive_time=300 \
   net.ipv4.tcp_keepalive_intvl=60 \
   net.ipv4.tcp_keepalive_probes=9


in a docker container.
When log into to the container directly and execute the command, I get the following error

sysctl: cannot stat /proc/sys/net/ipv4/tcp_keepalive_time: No such file or directory
sysctl: cannot stat /proc/sys/net/ipv4/tcp_keepalive_intvl: No such file or directory
sysctl: cannot stat /proc/sys/net/ipv4/tcp_keepalive_probes: No such file or directory


Then I found out the --sysctl option in docker run in here
But I did not find the equivalent option via docker-compose. 
I have few services that start by default so using docker run instead of docker-compose is not an option for me.

Anyone knows of a way to supply --sysctl options to the container via compose?
    

        

    
    
        
            asked Sep 5, 2016 at 11:34
        
        
    
    
        
    
    
        Keshava Keshava 8021 gold badge9 silver badges21 bronze badges
        
    

    





                
                
                    


                                        

            

            


    
    
This option is now available in docker-compose 1.10.0-rc1, you'll need to upgrade to that version (pip install docker-compose==1.10.0-rc1) and also update your docker-compose.yml file to version 2.1 per docs

Example docker-compose.yml:

version: '2.1'
services:
    app:
        build: .
        sysctls:
            - net.ipv6.conf.all.disable_ipv6=1

    
    
    
        
            answered Jan 6, 2017 at 0:01
        
        
    
    
        
    
    
        d3mingd3ming9,0807 gold badges34 silver badges34 bronze badges
        
    

    





                2

        

                                        

    
    docker-compose lacks many of the CLI options. In general, you have to head over to the github issues for compose and search there. In the case of sysctl, it's in the process of being added. Someone has made a branch with the addition. You could start with that until it gets added to the master branch.
    
    
        
            answered Sep 5, 2016 at 11:50
        
        
    
    
        
    
    
        BernardBernard17.3k13 gold badges67 silver badges69 bronze badges
        
    

    


                        


                            
                                
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