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Detailed explanation of how to deploy golang applications on Nginx

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2023-04-13 18:34:191412browse

As the separation of front-end and back-end becomes more and more popular, golang is becoming more and more popular among developers as a high-performance language. In terms of deployment of golang applications, Nginx, as a high-performance web server and reverse proxy server, is becoming more and more popular among developers. The following will introduce how to deploy golang applications on Nginx.

1. Install the golang environment

Before you start using golang, you need to install the golang environment first. You can download the corresponding binary package from the golang official website, or install it directly using package management tools such as apt, yum, etc.

2. Write golang application

Next, we write a simple golang application for later deployment using Nginx.

package main

import (
    "fmt"
    "net/http"
)

func sayHello(w http.ResponseWriter, r *http.Request) {
    fmt.Fprintln(w, "Hello, golang!")
}

func main() {
    http.HandleFunc("/", sayHello)

    if err := http.ListenAndServe(":8080", nil); err != nil {
        panic(err)
    }
}

The above code defines an HTTP service with route "/" and returns a simple string. Save it as main.go file and execute the go build command to compile.

3. Configure Nginx reverse proxy

Next, we need to use Nginx to reverse proxy the golang application. First add the following content to the Nginx configuration file:

server {
    listen 80;
    server_name example.com;

    location / {
        proxy_pass http://localhost:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

In the above Nginx configuration file, we configured an HTTP service with port 80 for example.com, and proxy requests in the /example path to port 8080. At the same time, the values ​​of the Host and X-Real-IP fields in the header information of the proxy request are set.

4. Start Nginx and golang applications

Finally, we only need to start Nginx and golang applications. Execute the following commands in the terminal:

$ sudo nginx -s reload   # 重新加载Nginx配置文件
$ ./main                 # 启动golang应用

Now, we can visit example.com in the browser and see the returned "Hello, golang!" string.

Summary:

Through the above practices, we can find that Nginx, as a high-performance web server and reverse proxy server, is also very convenient for the deployment and management of golang applications. In addition, Nginx can also implement advanced functions such as load balancing and caching, making golang applications more efficient and stable.

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