docker container run -ti -d -p 127.0.0.1:8080:80 --name nginx nginx:1.19.3
curl http://127.0.0.1:8080
docker exec -ti nginx /bin/sh
apt update
apt install -y iproute2
apt install -y procps
# show separate process namespace
ps -ef
# show separate network namespace
ip a s
exit

# show host process and network interfaces
ps -ef
ip a s

# commit tools
docker container stop nginx
docker container commit $(docker container ls -lq) nginx:1.19.3-tools
docker image ls
docker image history nginx:1.19.3-tools
docker container start nginx

ps fax
5006 ?        Sl     0:00  \_ /usr/bin/docker-proxy -proto tcp -host-ip :: -host-port 49154 -container-ip 172.1
 7343 ?        Sl     0:01 /usr/bin/containerd-shim-runc-v2 -namespace moby -id 6e0451b73ddbfae0976a5146e6cda92c
 7366 ?        Ss     0:00  \_ nginx: master process nginx -g daemon off;
 7425 ?        S      0:00      \_ nginx: worker process
 7426 ?        S      0:00      \_ nginx: worker process
 7427 ?        S      0:00      \_ nginx: worker process
 7428 ?        S      0:00      \_ nginx: worker process


docker stats zeigt den verbrauch an. 

docker context