Some important docker commands 

dockerfile with out any extension

.dockerignore 

docker build please put the . at the last

1. Important commands

To create image.

docker build -t myimage .

To create container

docker run -d -p 8080:80 --name  t1image myimage

To list all images in a computer

docker images

To list all containers in a computer.

docker container list -a

To check container details like IP address

docker inspect mvccore5

To stop a image

docker stop imagename

Power shell commands to delete all images and containers.

docker ps -a -q | % { docker rm $_ }

docker images -q | % { docker rmi $_ }

Check if there are issues with the container

docker logs containername

with out stopping you can not delete

2. docker file for MVC core (dockerfile)

FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build

WORKDIR /MyCore123

# copy csproj and restore as distinct layers

COPY *.sln .

COPY MyCore123/*.csproj ./MyCore123/

RUN dotnet restore

# copy everything else and build app

COPY MyCore123/. ./MyCore123/

RUN dotnet publish -c Release -o out

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1 AS runtime

WORKDIR /MyCore123/MyCore123

COPY --from=build /MyCore123/out ./

ENTRYPOINT ["dotnet", "MyCore123.dll"]

2. docker file for MVC 5(dockerfile)

FROM microsoft/aspnet

COPY ./bin/Release/Publish/ /inetpub/wwwroot

Step 3 :- .dockerignore

# directories

**/bin/

**/obj/