sal/src/rhaiexamples/nerdctl_webserver.rhai
2025-04-05 07:40:32 +02:00

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// 08__web_server.rhai
// Demonstrates a complete workflow to set up a web server using
// Note: This script requires to be installed and may need root privileges
println("Starting web server workflow...");
// Create and use a temporary directory for all files
let work_dir = "/tmp/";
mkdir(work_dir);
chdir(work_dir);
println(`Working in directory: ${work_dir}`);
println("\n=== Creating custom nginx configuration ===");
let config_content = `
server {
listen 80;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html;
}
}
`;
let config_file = `${work_dir}/custom-nginx.conf`;
// Use file_write instead of run command
file_write(config_file, config_content);
println(`Created custom nginx configuration file at ${config_file}`);
// Step 3: Create a custom index.html file
println("\n=== Creating custom index.html ===");
let html_content = `
<!DOCTYPE html>
<html>
<head>
<title>Demo</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 40px;
line-height: 1.6;
color: #333;
}
h1 {
color: #0066cc;
}
</style>
</head>
<body>
<h1>Hello from HeroScript !</h1>
<p>This page is served by an Nginx container.</p>
</body>
</html>
`;
let html_file = `${work_dir}/index.html`;
// Use file_write instead of run command
file_write(html_file, html_content);
println(`Created custom index.html file at ${html_file}`);
println("\n=== Creating nginx container ===");
let container_name = "nginx-demo";
let env_map = #{}; // Create an empty map
env_map["NGINX_HOST"] = "localhost";
env_map["NGINX_PORT"] = "80";
env_map["NGINX_WORKER_PROCESSES"] = "auto";
// Create a container with a rich set of options using batch methods
let container = nerdctl_container_from_image(container_name, "nginx:latest")
.reset()
.with_detach(true)
.with_ports(["8080:80"]) // Add multiple ports at once
.with_volumes([`${work_dir}:/usr/share/nginx/html`, "/var/log:/var/log/nginx"]) // Mount our work dir
.with_envs(env_map) // Add multiple environment variables at once
.with_cpu_limit("1.0")
.with_memory_limit("512m")
.start();
println("\n web server workflow completed successfully!");
println("The web server is running at http://localhost:8080");
"Web server script completed successfully!"