[Docker Engine commands ]A few commands to manage Docker Engine #docker

[Stop all] Stop all runnin containers.

# TODO code a fish function
docker stop (docker ps -a -q)

benchmark de performance

# Run CPU performance test
docker run --rm -v /mnt/cache/Data/Benchmark:/root/results ljishen/sysbench /root/results/output_cpu.prof --test=cpu --cpu-max-prime=20000 run

# Run Memory functions speed test
docker run --rm -v /mnt/cache/Data/Benchmark:/root/results ljishen/sysbench /root/results/output_memory.prof --test=memory run

# Run File I/O test
docker run --rm -v /mnt/cache/Data/Benchmark/workdir:/root/workdir ljishen/sysbench /root/results/output_fileio.prof --test=fileio --file-num=64 prepare

docker run --rm -v /mnt/cache/Data/Benchmark:/root/results -v /mnt/cache/Data/Benchmark/workdir:/root/workdir ljishen/sysbench /root/results/output_fileio.prof --test=fileio --file-num=64 --file-test-mode=seqrewr run

docker run --rm -v /mnt/cache/Data/Benchmark/workdir:/root/workdir ljishen/sysbench /root/results/output_fileio.prof --test=fileio cleanup

rm -r workdir

# Print help message
docker run --rm ljishen/sysbench /root/results/output_help.prof help

checkStatus.sh

# Check docker status on Unraid
/etc/rc.d/rc.docker status

composefile.yml

#Solving the problem (docker-compose)

#If you work with docker-compose, you will notice that in containers created by docker-compose, the MTU of the daemon is not inherited. This happens because the mtu entry in /etc/docker/daemon.json file only affects the default bridge. Therefore you have to specify the MTU explicitly in the docker-compose.yml for the newly created network:

...

networks:                                
  default:                               
    driver: bridge                       
    driver_opts:                         
      com.docker.network.driver.mtu: 1454

# After rebuilding the docker-compose environment (docker-compose down; docker-compose up), the containers should use the modified MTU.

daemon.json

# Docker daemon configuration
{
 "mtu": 1454,
"debug": true,
"registry-mirrors": ["https://registry-mirror.kebekweb.ca"]
}

forceStackTrace.sh

sudo kill -SIGUSR1 pidofdockerdhere

reloadConfig.sh

sudo kill -SIGHUP pidofdockerdhere