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Discuss how to deploy Golang projects on GitLab

PHPz
Release: 2023-04-13 18:17:44
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In modern development, version control and code management are essential steps. Git is a popular version control tool, and GitLab is a complete code management solution based on Git. At the same time, the popularity of Golang cannot be ignored because its speed and performance are very important for many application scenarios. In this article, we will discuss how to deploy Golang applications on GitLab.

First, we need to ensure that there is an available GitLab instance on the server. If you haven't installed GitLab yet, please install and configure it first. Next, we need to push our Golang application to GitLab. To push code, we have to create a new GitLab repository or use an existing one.

Create a new repository

  1. In the main menu on the GitLab page, click the "New Repository" button.
  2. In the page to create a new repository, set a name and description for your repository, and select your visibility level.
  3. Click the "Create Repository" button to complete the creation of the repository.

Use an existing repository

  1. In the main menu on the GitLab page, select the existing repository to which you want to add code.
  2. Click the "Create File" button on the repository page.
  3. In the Create New File page, set a name and extension for your new file.
  4. Enter your code in the file editor.
  5. Click the "Submit Changes" button to complete the code submission.

Whether you are using a new repository or an existing repository, now we have to clone our code from the repository onto our server. We can do this using the Git command line tool or using the "Clone repository" button on the GitLab interface. After this, we need to deploy our Golang application.

Deploy Golang application on GitLab

  1. Clone your Golang code to the server.
  2. Prepare the environment for your Golang application, including the Go runtime and dependencies.
  3. Create a file named "Dockerfile" in your code directory. Dockerfile is the file Docker needs to build a container.
  4. Populate the Dockerfile with the following content.
# 基础镜像选择golang官方镜像,版本1.15
# 这里的基础镜像可以按照自己的需求来选择
FROM golang:1.15

# 镜像维护者信息
MAINTAINER Your Name <your email address>

# 设置工作空间,path 为 "/go/src/YOUR_PROJECT_NAME",即将应用代码放到此目录下。
WORKDIR /go/src/YOUR_PROJECT_NAME

# 将应用代码复制到镜像中
COPY . .

# 利用 go mod 命令下载和编译我们的应用程序
RUN go mod download
RUN go mod verify

# 将应用程序编译为二进制文件并复制到根目录下
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o main .

# 暴露容器的 8080 端口,供其他容器连接
EXPOSE 8080

# 运行容器时,启动我们的应用程序
CMD ["./main"]
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  1. Write a "docker-compose.yml" file to define our Docker container.
version: "3"

services:
  # 给容器命名为您的应用程序名称并设置环境变量
  YOUR_APP_NAME:
    # 从您的Dockerfile中构建容器,此处设置构建上下文为代码目录
    build: .
    # 设置容器的端口映射
    ports:
      - "8080:8080"
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  1. Run the following commands to build and start the Docker container.
docker-compose up -d
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  1. After completion, you can use the "docker ps" command to verify the running status of the container.
docker ps
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Congratulations! Now you have successfully deployed your Golang application on GitLab.

Conclusion
In this article, we learned how to deploy Golang applications on GitLab. We first push our code to the GitLab repository and then clone the code to the server using the Git command line tools or buttons on the GitLab interface. Next, we write a Dockerfile to build our container and use a docker-compose.yml file to define our container. Finally, we run a few commands to build and start the Docker container, deploying our application.

A basic list of steps is provided here, which you can modify to suit your needs. Hope this article can help you successfully deploy Golang applications on GitLab.

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