0.0 *** Install docker for windows community edition (CE)
    *** some basic setup required: -- create an account, settings etc.
        -- setting -> shared drives: check as shared for drives used support volume mapping
        -- installation requirements: windows 10: Build 14393 or later
        -- Hyper-V is required: (https://docs.microsoft.com/en-us/virtualization/windowscontainers/quick-start/quick-start-windows-10)
        -- Windows containters vice Linux (use linux containers -- uses Hyper V)
                     https://docs.docker.com/docker-for-windows/install/ 
            docker version (client, server, local registry)

         location of local registr/c/Users/Public/Documents/Hyper-V/Virtual hard disks

0.1 create an account on docker hub: (reference: https://www.docker.com/products/docker-hub)
    ---------------------------------------------------------------------------------------
    public registry for repositories
    https://hub.docker.com/


0.2 log into the docker hub (public registry)
    -----------------------------------------
    docker login --username=yourhubusername --email=youremail@company.com 


0.3 *** start a linux  image:  attach stdin, stdout  -i --interteractive --tty, pass a command: "bash"
   ---------------------------------------------------------------------------------------------
   docker run --interactive --tty ubuntu bash
   
   first run commands to show initial state
   ---------------------------------------
   docker images
   docker ps -a 


 1.  demo # 1: run a simple linux container
   ----------------------------------------
 
   docker run --name mike -i -t ubuntu bash
   cat /etc/issue
   echo "Hello CSE681 from Docker !!" > hello.txt

   open a cmd.exe window 
   ------------------
   docker exec mike ls && cat hello.txt
   docker stop mike

   exit container and commit changes to existing container to create a new container
   ------------------------------------------------------------------
  
   docker ps -a
   docker commit mike mcorley/mikes_ubuntu
   docker rm mike
   docker ps -a

   -- compare the two images and have some fun examining layers
   docker images
   open firefox browser and navigate to the ubuntu repository, and view dockerfile: https://hub.docker.com/r/library/ubuntu/  
   ---------------------------------------------------------------------------------------------------------------------   -
   docker history ubuntu:latest
   docker history mcorley/mikes_ubuntu

   -- open browser to mike's repository
   docker push mcorley/mikes_ubuntu
   docker images 
   docker rmi mcorley/mikes_ubuntu
   docker images 
   docker run --rm -i -t mcorley/mikes_ubuntu bash


   -- test switch to windows mode containers 
   docker run -it microsoft/nanoserver cmd
   
   docker run --rm  -i -t mcorley/mikes_ubuntu bash

   docker run --rm --platform linux -i -t mcorley/mikes_ubuntu bash
   
   docker images
   * switch back to linux containers
   docker images
    

  
2. demo # 2: define the docker file to build a firefox image. 
   ---------------------------------------------------------
   Use case: never install apps directly on your host, run self contained apps via container images 
   create a directory and write a single file named "Dockerfile" with no extension
   e.g.
     FROM ubuntu:14.04
     RUN apt-get update && apt-get install -y firefox
     CMD /usr/bin/firefox

     *** to run the a Linux (Unbuntu) based container we need X Server (and X Launch (for config.) 
     ----------------------------------------------------------------------------------------------
     install VcXsrv (or Xming) -- open source windows  X windows xerver implementation)
     https://sourceforge.net/projects/vcxsrv/
     Source: https://dev.to/darksmile92/run-gui-app-in-linux-docker-container-on-windows-host-4kde

	
     copy the docker file into the build context, issue the build command, give the image a name (e.g. firefox)
     ------------------------------------------------------------------------------------------------------------
     cd Dockerfile (directory)
     docker build -t firefox .  (build context is the current directory . -- this a convention that is used)
     docker build -t mcorley/firefox:ubuntu-14.04 .

     -- push to mcorley repository on docker hub
     docker push mcorley/firefox:ubuntu-14.04

     *** using powershell (as administrator)
     -------------------
     cd ..
     Set-Variable -name DISPLAY -value 10.0.75.1:0.0 (your docker interface ip-address : device.display (0.0)
     docker run  -d -v ${PWD}/firefox_rooted_path/downloads/:/root/Downloads  -v ${PWD}/firefox_rooted_path:/root  -ti --rm -e DISPLAY=$DISPLAY  mcorley/firefox:ubuntu-14.04

     -- version 2
     cd Dockerfile2
     docker build -t mcorley/firefox:v2 .
     docker run -e DISPLAY=$DISPLAY mcorley/firefox:v2


  3. demo # 3: docker 
  -------------------
  *** start eclipse, exposed through vnc server
  docker run --rm --name vnc -d -p 5901:5901 kevensen/centos-vnc-eclipse





*** pull an image from a repository
   ----------------------------------
   docker pull microsoft/nanoserver
   docker mcorley/firefox:ubuntu-14.04
   

helpful sources
---------------
https://github.com/moby/moby/issues/20397
   Security warning source 

missing layers source
https://docs.docker.com/v17.09/engine/userguide/storagedriver/imagesandcontainers/#container-size-on-disk


-- test .net core 

  
cd  C:\Users\mwcor\Desktop\net_core_project4\project4\net_core\DepAnal_core
docker build -t mcorley/cse681-project3 .
docker run --rm mcorley/cse681-project3 ./testdata/ *.cs