Its also possible to write a maven pom file or ivy configuration file to externally. What is a comparison between sbt, maven and gradle. This works fine, as long as the jar has no dependencies. Its all working pretty well, but i need to customize the elb instance a bit. Sbt native packager lets you build application packages in native formats. When working on a scala project built with sbt, you want to use a java library thats in a maven repository, but the library doesnt include information about how to use it with scala and sbt. Maven its a great build tool and it enables to control the entire software lifecycle with xml files. To simplify the generation of native images, graalvm native image now works out of maven with the native image maven plugin. Or you can use a build tool like maven or sbt to download dependencies from the akka maven repository. Running a remote sbt console for a scala or play application. As you know, theres a whole lot of other concerns including integrated monitoring, service discovery, affinity, continuous delivery almost done, consolidated logging and more.
The resolve and fetch commands now accept a sbtplugin option to accept sbt plugin dependencies. While it provides some basic abstractions around packaging, it also allows you to dig down into the nuts and bolts of each platform as needed to generate the best package possible. While the native packager tries to provide robust bashbat scripts for your applications, they may not always be enough. Running scala project and subproject as two separate applications on different ports in docker using play framework. Most of the time, you can simply list your dependencies in the projectbuild. I have a scala application that is essentially an api service. The problem is that this package is too big, because it includes every dependency needed for the app to run ex. When the sbt update task is run only the library jars are downloaded one way to make sbt download the sources for a library is to add. The commands executed in the solution, along with their output, are shown here. To help a little further, with sbt native packager installed, one would do sbt stage to get the files in targetuniversalstage akauppi feb 10 17 at 9.
If you have a lot of dependencies, this may result in a very long command being executed, which, aside from being aesthetically unpleasing and difficult to work. Sbt is very simple and it is focused on scala it relies on ivy for dependency management. For this reason, the application runs like java application. Only very few projects deploy to maven central directly. How to compile, run, and package a scala project with sbt. First, make sure your application is using at least version 0. This is an excerpt from the scala cookbook partially modified for the internet. Well use its jlink plugin to generate a custom jre for our application. Since my last post on akka clustering with docker containers a new plugin, sbtdocker, has emerged which allows you to build docker containers directly from sbt.
In some areas, sbt plugins exist that go beyond what ive observed to be possible in the maven world, e. It offers different archetypes for common configurations, such as simple java apps or server applications. Previously, the java server application archetype provided a setting serverloading where you could define your system loader like this import com. The following is a list of provided dependencies for this project. An in depth guide to deploying to maven central with sbt.
Theres a complete getting started guide and more detailed topics available at the sbtnativepackager site please feel free to contribute documentation, or raise issues where you feel it may be lacking contributing. Scala applications can be packaged by sbt, maven or ant but sbt is the simplest way even sbt assembly plugin makes it easier. These dependencies are required to compile the application, but should be provided by default when using the library. Contribute to sbtsbtnativepackager development by creating an account on github. Most small projects these days deploy to maven central via the sonatype repository. They work together in custom build lifecycle native. The api service is a play application that listens. Contribute to sbt sbtnativepackager development by creating an account on github. Theres a complete getting started guide and more detailed topics available at the sbtnativepackager site please feel free to contribute documentation, or raise issues where you feel it may be lacking. If you wish to ask questions about the native packager were active on stack overflow. Install sbt assembly plugin and run sbt assembly command.
The native packager provides a mechanism where the template used to create each script can be customized or directly overridden. Deployment with scala, clojure and gradle other jvm languages have support for deploying executable jar files on heroku. The following contains summary of all available goals in nativemavenplugin. If you recall from the previous tutorial on importing dependencies from sbt, weve used the groupid, artifactid and version in our build. In fact conductr bundles are produced from sbtnativepackager. They work together in a maven custom build lifecycle. Akka clustering with sbtdocker and sbtnativepackager. The sbtnativepackager attempts to make building packages for different operating systems easier. Add sbtnativepackager plugin sbtnativepackager is an sbt plugin that makes it easy to build packages for different operating systems. You can use the apache maven shade plugin support for resource transformers to merge all the nfs on the build classpath into one.
How to build a maven project in a docker container. By filip hrisafov under release news intellij ide its getters. Stack overflow for teams is a private, secure spot for you and your coworkers to find and share information. By default, when the native packager generates a script for starting your application, it will generate an invocation of java that passes every library on the classpath to the classpath argument, cp. The user describes a generic layout, which can then be extended for differ. The following contains summaries of all main goals. So by modifying the mappings key you can start to carefully filter away whatever you desire. I have been doing my personal development primarily in scala lately, and i use the excellent sbt simple build tool program to build my code to make the my libraries accessible to others, i could simply place the jar file somewhere, such as the download area of the projects github repository. However i think youre asking about more than just deployment packaging formats.
Read more in the specific format documentation on how to configure and build your package documentation. The sbtheroku plugin will skip the default sbtnativepackager execution and deploy your jar directly to heroku. Intellij import dependencies sbt dependencies and maven. The first time you run sbt, it may take a while to download all the dependencies it needs, but after that first run, it will download new dependencies only as needed. If you want to utilize the agent while running or testing, then you will need to add the following to your build.
This causes sbt to use jdk even when java available on path is jdk 8 or 11. Ive updated my akkadockerclusterexample to leverage these two plugins for a smoother docker build experience one step build. Akka clustering with sbtdocker and sbtnativepackager jun 19 2014. Enabling the plugin automatically adds the cinnamon agent to your dist scope, which in turn attaches the agent to your distribution when using sbtnativepackager. In 2017, sbt is a lot more usable than at points in the past, but its learning curve. As demonstrated in the native image configuration examples, one can build a native image directly with maven using the mvn package command without running the nativeimage tool as a separate step.
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