Rust Docker: Easy packaging of your applications

Rust + Docker

Source: ITNEXT

Rust is a popular programming language known for its performance, safety, and concurrency. One way to package and distribute Rust applications is through Docker, a platform for building, running, and distributing containerised applications.

To create a Docker container for a Rust application, you must have Docker installed on your machine. Then, create a new Rust project using the cargo package manager:

cargo new hello-world
cd hello-world

Next, create a file called Dockerfile in the project's root directory. This file will contain the instructions for building the Docker image for your application.

To create a minimal Docker image for a Rust application, you can use the following Dockerfile:

FROM rust:latest# Set the working directoryWORKDIR /usr/src/app# Copy the codeCOPY . .# Build the codeRUN cargo build --release# Set the binary as the entrypointENTRYPOINT ["/usr/src/app/target/release/hello-world"]

This Dockerfile uses the official Rust image as the base image, copies the code from the current directory into the container, builds the release version of the code, and sets the binary as the entrypoint for the container.

To build the Docker image, run the following command in the root directory of the project:

docker build -t hello-world .

This will create a Docker image with the name hello-world. To run the container, use the following command:

docker run -p 8080:8080 hello-world

This will start the container and bind it to port 8080 on the host machine. You can access the application by visiting http://localhost:8080 in a web browser.

To modify the application to listen on a different address and port, you can use the std::net::TcpListener and std::net::TcpStream types from the Rust standard library.

For example, to listen on the loopback interface (127.0.0.1) on port 8080, you can use the following code:

use std::net::TcpListener;fn main() {    let listener = TcpListener::bind("127.0.0.1:8080").unwrap();    println!("Listening on {}", listener.local_addr().unwrap());}

To listen on all available interfaces, you can use the 0.0.0.0 address:

use std::net::TcpListener;fn main() {    let listener = TcpListener::bind("0.0.0.0:8080").unwrap();    println!("Listening on {}", listener.local_addr().unwrap());}

Using Rust and Docker together you can easily package and distribute your applications, making it easy to run them on any machine with Docker installed.

Comment below on other topics you'd like me to cover using Rust!

Conclusion

Rust is an excellent choice for building applications that must be performant and safe. Its strong emphasis on memory safety and concurrent programming makes it well-suited for various tasks. At Vaultree, we used Rust as the primary language for our data-in-use SDK. If you're interested in learning more about how the worlds first fully functional data-in-use encryption solution works, you can contact us and learn more about what we do. Count on us to help secure your databases and sensitive information while building more robust and reliable applications.

About Vaultree

Vaultree has developed the worlds first Fully Functional Data-in-Use Encryption solution that solves the industrys fundamental security issue: persistent data encryption, even in the event of a leak. Vaultree enables enterprises, including those in the financial services and healthcare / pharmaceutical sectors, to mitigate the great financial, cyber, legal, and business risk of a data breach in plain text. With Vaultree, organisations process, search, and compute ubiquitous data at scale, without ever having to surrender encryption keys or decrypt server-side. If a leak occurs, Vaultrees data-in-use encryption persists, rendering the data unusable to bad actors. Integrating Vaultree into existing database technologies is seamless, requiring no technology or platform changes. Vaultree is a privately held company based in Ireland and the U.S.

For more information, please visit www.vaultree.com