docker

1. sudo docker pull netflixoss/eureka generates the following error
2.  Using default tag: latest
   Error response from daemon: manifest for netflixoss/eureka:latest not found
   solution is ->
3. sudo docker pull netflixoss/eureka:1.3.1
1. where 1.3.1 is the tag
4. following is the way to run i.e create a container:
5. sudo docker run netflixoss/eureka:1.3.1
6. the problem is unable to connect to the port 
7. https://stackoverflow.com/questions/47612400/docker-run-unable-to-access-jar-file 
8. https://bartwullems.blogspot.com/2017/03/docker-error-err
9. http://blog.thoward37.me/articles/where-are-docker-images-stored/
10. https://stackoverflow.com/questions/25101312/does-all-running-docker-containers-have-a-separate-process-id
11.  sudo docker container ls -> will all the running containers
12. docker --help//help commands
13. how to locate Dockerfile of pulled docker image ?
14. docker-compose.yml
15.  If you need to customize an image image, you should create a Dockerfile, with the first line:
    

    FROM ubuntu

16. 
    
    Yes, every docker container will have a different PID on your host machine.
    You can get a docker containers PID by doing:
    

    docker inspect --format '{{ .State.Pid }}' CONTAINER_ID
    

    If you kill the process on your host, your docker container will die.
    
    example
    sudo docker inspect --format '{{ .State.Pid }}' 18f966e5228f