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This article introduces the knowledge of "the .NET 5 deployment program runs on Docker". Many people will encounter this dilemma in the operation of actual cases, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Create a site

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

2. Write Dockerfile files

Dockerfile is a configuration file in file format, and users can use dockerfile to quickly build custom images. Consists of line-by-line command statements and supports comment lines starting with #.

Dockerfile topic content is generally divided into four parts.

Basic image information

Maintainer information using label directive

Mirror operation instruction

Execute instructions when the container is started

# See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

# Depending on the operating system of the host machines (s) that will build or run the containers, the image specified in the FROM statement may need to be changed.

# For more information, please see https://aka.ms/containercompat

# FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base

# WORKDIR / app

# EXPOSE 80

# EXPOSE 443

#

# FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build

# WORKDIR / src

# COPY ["AA.Mvc/AA.Mvc.csproj", "AA.Mvc/"]

# RUN dotnet restore "AA.Mvc/AA.Mvc.csproj"

# COPY. .

# WORKDIR "/ src/AA.Mvc"

# RUN dotnet build "AA.Mvc.csproj"-c Release-o / app/build

#

# FROM build AS publish

# RUN dotnet publish "AA.Mvc.csproj"-c Release-o / app/publish

#

# FROM base AS final

# WORKDIR / app

# COPY-from=publish / app/publish.

# ENTRYPOINT ["dotnet", "AA.Mvc.dll"]

# parent image

# FROM microsoft/aspnetcore:5.0

# FROM mcr.microsoft.com/dotnet/core/aspnet:3.0-buster-slim AS baseWORKDIR / app

FROM mcr.microsoft.com/dotnet/aspnet:5.0 AS base

# # setting working Directory

# WORKDIR / app

#

# # copy the release file to / app

# COPY. / app

#

# # setting Port

# EXPOSE 5005

EXPOSE 80

COPY. .

# use AA.Mvc.dll to run ASP.NET Core projects, pay attention to case

# ENTRYPOINT ["dotnet", "AA.Mvc.dll", "--server.urls", "http://*:5005"]"

ENTRYPOINT ["dotnet", "AA.Mvc.dll"]

The dockerfile file directive states:

FROM-specifies the base image of the created image

WORKDIR- configuration working directory

EXPOSE- declares the port on which the service listens in the image

COPY- copies content to the mirror

Default population command for ENTRYPOINT- to start the image

3. Compile and publish web project

Set up dockerfile file output replication

Release complete

4. Build the image, run the container and browse

To create an image, you can use the command docker build, as shown below:

Docker build-t core-mvc.

This step may be slower, because you need to download the runtime environment, please wait patiently

Parameter decomposition:

-t-specify the image name

At the end of the order. -indicates that the build context is the current directory. By default, docker will find the Dockerfile file in the root directory of the context.

View the list of images and enter the command

Docker images

Create and start, view containers

Docker run-- name netcore-mvc-d-p 50879 core-mvc

Docker ps-a

Parameter description

-d, indicating that the container is running in daemonized mode in the background

-p external ports are mapped to internal container ports.

-- name specifies the name of the container. Of course, it can not be specified, but it will be created for us by default.

Here, if you run docker run again after a failure, it will prompt that the name already exists. You can delete the container using the following command

Docker rm-f netcore-mvc

The last parameter, core-mvc, is the name of the image we just created. After the above four steps, enter the address http://localhost:50879/ in the browser to see the figure.

At this point, a complete project runs manually in the docker container.

This is the end of the content of ".NET 5 deployment program runs on Docker". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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