The perfect combination of go-zero and Docker: Efficiently build containerized microservice architecture

With the rapid development of the Internet, microservice architecture has gradually become a hot topic in the industry, and Docker, as a containerization tool, is widely used in the deployment and operation and maintenance of microservice architecture. Today I want to introduce another very excellent microservice framework-go-zero, and its perfect combination with Docker.

1. What is go-zero

go-zero is a microservice framework open sourced by Ele.me Dianping Company and built on the Go language. It is characterized by high performance, ease of use and comprehensive functionality. Compared with other microservice frameworks, the most outstanding feature of go-zero is its high performance. It can achieve amazing read and write performance and QPS (query per second), and can handle hundreds of thousands of requests.

In go-zero, many efficient technical means are used, such as the self-developed RPC framework, built-in current limiting control, service registration center, automated document generation, etc., which can help developers quickly Build and deploy microservice architecture.

2. Why combine with Docker

In the development and deployment process, Docker has gradually become a common deployment tool. By packaging applications and services into Docker images, developers can easily port, deploy and run applications and services in different environments.

The combination of go-zero and Docker can make it easier, more efficient and more flexible for us to build a containerized microservice architecture. Let's take a look at how to use Docker to build and deploy go-zero applications.

3. How to use Docker in go-zero application

1. Writing Dockerfile

First you need to write a Dockerfile file, describing the image in it Building process. The following is a simple go-zero application Dockerfile file, which can be modified according to your own needs:

# 基于golang:1.13-alpine镜像构建
FROM golang:1.13-alpine

# 作者信息
LABEL maintainer="your-name"

# 创建一个工作目录
RUN mkdir /app
WORKDIR /app

# 复制go.mod和go.sum到工作目录
COPY go.mod .
COPY go.sum .

# 下载依赖
RUN go mod download

# 复制所有源代码到工作目录
COPY . .

# 打包编译
RUN go build -o main .

# 暴露端口
EXPOSE 80

# 容器启动命令
CMD ["./main"]

2. Build the image

After writing the Dockerfile file, We need to use Docker CLI to build the image. In the project root directory of the go-zero application, execute the following command:

$ docker build -t go-zero-app:v1 .

Among them, go-zero-app:v1 is the name and version number we gave this image.

3. Run the container

After building the image, we can use the Docker CLI to start the container. In the previous step, we have exposed the application's port 80 in the Dockerfile, so we need to map the container's port 80 to a certain port on the host. For example, to map port 80 of the container to port 8080 of the local machine, you can execute the following command:

$ docker run -d -p 8080:80 go-zero-app:v1

Among them, the -d option means running the container in the background.

4. Summary

Through the above steps, we have successfully packaged the go-zero application into the Docker image and successfully run the container. Now we have been able to take advantage of containerization Tools to efficiently deploy and run our go-zero applications. In actual work, there are many details that need to be paid attention to when using Docker images, such as how to manage the logs of containers, how to conduct network communication between containers, and so on. But in short, the perfect combination of go-zero and Docker is a powerful tool that makes it easier and more efficient for us to build a containerized microservice architecture.

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