An article introducing the packaging and deployment of golang

Golang is a high-level programming language that has the advantages of static type checking, built-in concurrent programming support, etc., and is increasingly favored by programmers. When developing golang programs, packaging and deployment are inevitable issues. This article will introduce the packaging and deployment of golang.

1. Packaging of golang programs

You can use the go build or go install command to package golang programs. Among them, the go build command will generate an executable file, and the go install command will generate an executable file and install it to the $GOPATH/bin path. It is similar to our usual direct packaging process under Windows system.

1. go build command

The following is the syntax format of the go build command:

go build [ build flags ] [ packages ]

Among them, build flags are optional, and packages indicate the specified ones that need to be compiled. Source file path, separate multiple paths with spaces.

For example, we can use the following command to compile a source file named main.go:

go build main.go

Of course, if you need to execute the program under different operating systems, you can also use The following command is used for cross-compiling:

GOOS=linux GOARCH=amd64 go build main.go

The above command will compile an executable program with AMD64 architecture under the Linux system.

2. go install command

The following is the syntax format of the go install command:

go install [ build flags ] [ packages ]

Among them, build flags are optional, and packages indicate that the components that need to be compiled are specified. Source file path, separate multiple paths with spaces. If packages are not specified, the go install command will compile in the current directory.

For example, we can use the following command to compile and install a source file named main.go:

go install main.go

After this command is executed, it will be generated in the $GOPATH/bin path An executable program.

2. Deployment of golang program

The deployment of golang program can generally adopt the following methods:

1. Deploy the executable file directly to the server

After packaging, we can deploy the executable file directly to the server. It should be noted that before deployment, we need to confirm whether the relevant libraries are installed on the server.

Deployment process example:

1.1 Use the go build command to compile an executable file, such as main.exe, under the Windows operating system.

1.2 Copy main.exe to the Linux system server.

1.3 Add executable permissions to the main.exe file and use the following command:

chmod +x main.exe

1.4 Start the golang program through the following command:

./main.exe

2. Use Docker container deployment

We can package the golang program into a docker image for deployment. It should be noted that before packaging the golang program into a docker image, we need to ensure that the Docker environment has been installed correctly.

Deployment process example:

2.1 Write the Dockerfile file. The following is an example of a Dockerfile file:

FROM golang AS builder

# 拷贝源代码进入容器
WORKDIR /src
COPY . .

# 编译可执行文件
RUN go build -o main .

# 创建容器，将可执行文件拷贝到容器中
FROM ubuntu
COPY --from=builder /src/main .
EXPOSE 8080
CMD ["./main"]

2.2 Place the Dockerfile file and the main.go source file in the same path.

2.3 Use the following command to build the Dockerfile:

docker build -t my-app:latest .

2.4 Use the following command to start the container:

docker run -p 8080:8080 my-app

The above is the detailed process of packaging and deployment of the golang program. I hope it will help You helped.

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