added test for everything container related

examples/nerdctl.rs

@@ -0,0 +1,82 @@
+//! Example usage of the nerdctl module
+//! 
+//! This file demonstrates how to use the nerdctl module to perform
+//! common container operations like creating containers, running commands,
+//! and managing images.
+
+use sal::virt::nerdctl::{self, NerdctlError};
+
+/// Run a complete nerdctl workflow example
+pub fn run_nerdctl_example() -> Result<(), NerdctlError> {
+    println!("Starting nerdctl example workflow...");
+    
+    // Step 1: Pull an image
+    println!("\n=== Pulling nginx:latest image ===");
+    let pull_result = nerdctl::image_pull("nginx:latest")?;
+    println!("Pull output: {}", pull_result.stdout);
+    
+    // Step 2: Create a container from the image
+    println!("\n=== Creating container from nginx:latest ===");
+    let run_result = nerdctl::run("nginx:latest", Some("my-nginx"), true, Some(&["8080:80"]))?;
+    println!("Container created: {}", run_result.stdout.trim());
+    let container_id = "my-nginx"; // Using the name we specified
+    
+    // Step 3: Execute a command in the container
+    println!("\n=== Installing curl in container ===");
+    let update_result = nerdctl::exec(container_id, "apt-get update")?;
+    println!("Update output: {}", update_result.stdout);
+    
+    let install_result = nerdctl::exec(container_id, "apt-get install -y curl")?;
+    println!("Installation output: {}", install_result.stdout);
+    
+    // Step 4: Copy a file into the container (assuming nginx.conf exists)
+    println!("\n=== Copying configuration file to container ===");
+    nerdctl::copy("./nginx.conf", format!("{}:/etc/nginx/nginx.conf", container_id).as_str())?;
+    
+    // Step 5: Commit the container to create a new image
+    println!("\n=== Committing container to create image ===");
+    let image_name = "my-custom-nginx:latest";
+    nerdctl::image_commit(container_id, image_name)?;
+    println!("Created image: {}", image_name);
+    
+    // Step 6: Stop and remove the container
+    println!("\n=== Stopping and removing container ===");
+    nerdctl::stop(container_id)?;
+    nerdctl::remove(container_id)?;
+    println!("Container stopped and removed");
+    
+    // Step 7: Create a new container from our custom image
+    println!("\n=== Creating container from custom image ===");
+    nerdctl::run(image_name, Some("nginx-custom"), true, Some(&["8081:80"]))?;
+    println!("Custom container created");
+    
+    // Step 8: List images
+    println!("\n=== Listing images ===");
+    let images_result = nerdctl::images()?;
+    println!("Images: \n{}", images_result.stdout);
+    
+    // Step 9: Clean up (optional in a real workflow)
+    println!("\n=== Cleaning up ===");
+    nerdctl::stop("nginx-custom")?;
+    nerdctl::remove("nginx-custom")?;
+    nerdctl::image_remove(image_name)?;
+    
+    println!("\nNerdctl example workflow completed successfully!");
+    Ok(())
+}
+
+/// Main function to run all examples
+pub fn run_all_examples() -> Result<(), NerdctlError> {
+    println!("=== NERDCTL MODULE EXAMPLES ===\n");
+    
+    run_nerdctl_example()?;
+    
+    println!("\nNote that these examples require nerdctl to be installed on your system");
+    println!("and may require root/sudo privileges depending on your setup.");
+    
+    Ok(())
+}
+
+fn main() {
+    run_all_examples();
+}