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https://github.com/metaparticle-io/package

Metaparticle/Package: Language Fluent Containerization and Deployment in Java, .NET and Javascript (and more coming soon)
https://github.com/metaparticle-io/package

distributed-systems docker dotnet dotnet-core java javascript kubernetes programmer

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Metaparticle/Package: Language Fluent Containerization and Deployment in Java, .NET and Javascript (and more coming soon)

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README 

        
# Metaparticle/Package



Language Idiomatic bindings for building Container Images.



## What's this about?

Containers are an optimal way to package and deploy your code. However, teaching developers to learn a new

configuration file format, and toolchain, just to package their application in a container is an

unnecessary barrier to entry for many programmers just starting out with containers.



Metaparticle/Package simplifies the task of building and deploying container images. Metaparticle/Package is

a collection of libraries that enable programmers to build and deploy containers using code that feels

familiar to them.



Rather than learn a new set of tools, syntaxes or workflows. The package libraries aim to use language level features to add new capabilities to existing programming languages.



## Can you give me an example?

Here's a simple example of building a containerized Java application:



```Java

import io.metaparticle.annotations.Package;

import static io.metaparticle.Metaparticle.Containerize;



public class Main {

    @Package(repository="brendanburns",

             jarFile="path/to/my-fat-jar.jar")

    public static void main(String[] args) {

        Containerize(() -> {

            System.out.println("Hello Metaparticle/Package");

        });

    }

}

```



When you run this program via the `java` command or your IDE, rather than simply executing your code, this program

packages up the Java code in a container, and runs that container.



## What languages do you support?



Currently:

   * [java](java)

   * [.NET core](dotnet)

   * [javascript](javascript) (NodeJS)

   * [go](go)

   * [python](python)

   * [ruby](ruby)



But it's fairly straightforward to add other languages, we would love to see contributions.



## Details



For more details see the more complete walkthroughs for each language:

   * [java tutorial](tutorials/java/tutorial.md)

   * [.NET Core tutorial](tutorials/dotnet/tutorial.md)

   * [javascript tutorial](tutorials/javascript/tutorial.md)

   * [python tutorial](tutorials/python/tutorial.md)

   * [go tutorial](tutorials/go/tutorial.md)

   * [Ruby tutorial](tutorials/ruby/tutorial.md)



## Operation

When you link the metaparticle package library into your application, it intercepts and overwrites the

`main` program entry point. This interception performs the following pseudo code:

```go

func main(args []string) {

    if runningInDockerContainer {

        executeOriginalMain(args)

    } else {

        buildDockerImage()

        pushDockerImage()

        if deployRequested {

            deployDockerImage()

        }

    }

}

```



The net effect of this is that a developer can containerize, distribute and optionally deploy their application without ever leaving the syntax or confines of their development environment and language of choice.



At the same time, metaparticle is not intended to be a platform. Under the hood, the libraries still

write `Dockerfiles` and make calls to the same build and push code. So when a developer wants or needs

to switch to the complete container tooling, they can easily take their application with them.



In addition to basic packaging and deployment, metaparticle can also implement more [complex distributed system patterns](distributed-patterns.md) via language fluent semantics.



## Contribute

There are many ways to contribute to Metaparticle



 * [Submit bugs](https://github.com/metaparticle-io/package/issues) and help us verify fixes as they are checked in.

 * Review the source code changes.

 * Engage with other Metaparticle users and developers on [gitter](https://gitter.im/metaparticle-io/Lobby).

 * Join the #metaparticle discussion on [Twitter](https://twitter.com/MetaparticleIO).

 * [Contribute bug fixes](https://github.com/metaparticle-io/package/pulls).



This project has adopted the [Microsoft Open Source Code of Conduct](https://opensource.microsoft.com/codeofconduct/). For more information see the [Code of Conduct FAQ](https://opensource.microsoft.com/codeofconduct/faq/) or contact [[email protected]](mailto://[email protected]) with any additional questions or comments.