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docker how to run. NET Core 3.0, I believe many inexperienced people are helpless about this, this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

1. create a site

Create an ASP.NET Core Web application and check Enable Docker support. Automatically create a Dockerfile for us.

2. Writing Dockerfile

Dockerfile is a configuration file in file format that users can use to quickly build custom images. Consists of a line of command statements and supports comment lines beginning with #.

Dockerfile theme content is generally divided into 4 parts

Basic mirror information

Maintainer information using label directive

mirror operation instruction

Execute instructions at container startup

FROM mcr.microsoft.com/dotnet/core/aspnet:3.0-buster-slim AS baseWORKDIR /appEXPOSE 80COPY . .ENTRYPOINT ["dotnet", "AA.Mvc.dll"]

Dockerfile directive description:

FROM -Specifies the base mirror of the mirror being created

WORKDIR-Configure Work Directory

EXPOSE-Declares the port on which services within the image listen

COPY-Copy content to mirror

ENTRYPOINT-Default population command to start mirroring

Compile and publish web projects

3. Site publishing, xftp upload centos

Upload to centos using xftp

4. Build images, run containers and browse

4.1 To create an image, you can use the command docker build, as follows:

docker build -t core-mvc .

Parameter decomposition:

-t ---Specify the mirror name

At the end of the command. ---indicates that the build context is the current directory, docker will use Dockerfile found in the root directory of the context by default

4.2 To view the list of mirrors, type the command

docker images

4.3 Create and launch, view containers

docker run --name netcore-mvc -d -p 50879:80 core-mvcdocker ps -a

parameter description

-d , indicates that the container is running daemonized in the background

-p External port maps to internal container ports.

--name Specifies the container name. Of course, we can not specify, the default will be created for us

The last parameter core-mvc is the name of the mirror we just created

After the above 4 steps, enter the address http://192.168.92.130:50879 in the browser to view the figure

After reading the above, do you know how to run. NET Core 3.0 in docker? If you still want to learn more skills or want to know more related content, welcome to pay attention to the industry information channel, thank you for reading!

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