List running containers $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ec7ad9e8d7a5 spring-demo "java -jar /app.war" 3 minutes ago Up 3 minutes nifty_boyd$ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES ec7ad9e8d7a5 spring-demo "java -jar /app.war" 3 minutes ago Up 3 minutes nifty_boyd Go inside running container and run command Read more about Docker – inspect running container[…]

Error when docker make networking… iptables failed: iptables –wait -t nat -A DOCKER … Chain ‘DOCKER’ does not existiptables failed: iptables –wait -t nat -A DOCKER … Chain ‘DOCKER’ does not exist Solution $ systemctl restart docker$ systemctl restart docker

# get official image $ docker pull mariadb:latest   # create container from image and run it $ docker run -it -p 80:8080 image:tag   # -v option: mount host directory for container $ docker run -it -v /host/directory:/container_dir image:tag   # show image layers (full commands) $ docker history –no-trunc mariadb:latest   # start Read more about Docker CLI commands[…]