Fixing issue with startup of .net application

• Refer Here for the Dockerfile
  
• Refer Here the document to host the .net application on 0.0.0.0

Setting Environment Variables in the container

• ENV instruction Refer Here
• This instruction adds environmental variable in the container and it also allows us to change environmental variables while creating containers
• Refer Here for the changes done to include environmental varibles
• docker container exec will allow us to execute commands in the container
  
• docker container exec -it <c-name> <shell> will allow us to login into container
  
• ARG instruction allows us to set the values while building the image Refer Here
• Refer Here for the BUILD ARGS added
• Build args can be set while creating images. BUILD ARG can be used by using ${ARG_NAME}.
• We have build two images by changing the HOME_DIR and DOWNLOAD_URL Build args

docker image build --build-arg DOWNLOAD_URL=nopCommerce_4.60.2_NoSource_linux_x64.zip -t nop:1.0.2 .
docker image build --build-arg HOME_DIR=/publish -t nop:1.0.0 . 

• USER: Refer Here
• Refer Here for the changes done to add a non root user to run the nop commerce application.
  

Exercise:

• Gameof life application:
  • This requires java 8
  • this requires tomcat 8 or 9
  • copy the gameoflife.war application into webapps folder of tomcat Refer Here
  • This runs on port 8080