add dockerfile

[sancppp]

This PR provides a way to run ecapture containerized. for better deployment in the background.

Specifically, a docker image will be built and uploaded to dockerhub at release tag time

I have done some simple tests, and ecapture works fine:

bash:
  sudo docker run --rm --privileged=true -v /usr/bin/bash:/usr/bin/bash sancpp/ecapture bash --bash="/usr/bin/bash"

gotls:
  sudo docker run --rm --privileged=true --net=host -v  ${HOME}/test/test_gotls:/test sancpp/ecapture gotls --elfpath="/test/main" --hex

tls:
  sudo docker run --rm --privileged=true --net=host -v /etc:/etc -v /usr:/usr -v ${PWD}:/output sancpp/ecapture tls -m pcap -i wlp3s0 --pcapfile=/output/ecapture.pcapng tcp port 443

mysqld:
  sudo docker run --rm -v mysqld-file:/usr/sbin --name mysql_test -e MYSQL_ROOT_PASSWORD=123456 mysql:8.0
  sudo docker run --rm --privileged=true --volumes-from mysql_test sancpp/ecapture mysqld -m="/usr/sbin/mysqld"
  sudo docker exec -it mysql_test bash
    mysql -u root -p # password=123456
      show databases;

Todo List:

• You need to register a docker hub account and configure DOCKERHUB_USERNAME as well as DOCKERHUB_TOKEN.(https://github.com/marketplace/actions/docker-login#docker-hub)
• Replace TODO in the README with the dockerhub username

[cfc4n]

I have registered an account with Docker Hub and configured the Github Token.

https://hub.docker.com/r/gojue/ecapture

[cfc4n]

LGTM, Thanks.