/sbt-docker-label-schema

a sbt plugin for applying label-schema labels to your Docker images

Primary LanguageScalaMIT LicenseMIT

sbt-docker-label-schema

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sbt-docker-label-schema is a sbt plugin for automatically applying label-schema labels to Docker images created by the sbt-native-packager plugin.

Usage Instructions

In order to add the sbt-docker-label-schema plugin to your build, add the following lines to project/plugins.sbt:

resolvers += Resolver.bintrayIvyRepo("rubendg", "sbt-plugins")

addSbtPlugin("nl.rubendegooijer" % "sbt-docker-label-schema" % "0.1.1")

The plugin currently supports sbt versions >= 0.13.16 and 1.x, and is tested against sbt-native-packager 1.2.2 and 1.3.3. The plugin does not automatically include a dependency on the sbt-native-packager you'll have to do that yourself:

addSbtPlugin("com.typesafe.sbt" %% "sbt-native-packager" % "1.3.3")

To see the result of activating the plugin run:

# docker image
sbt docker:publishLocal 

# and inspect the image's labels
docker inspect --format='{{.Config.Labels}}' "<IMAGE ID HERE>"

this will by default apply a sensible mapping from already existing sbt keys to label-schema labels. You can further add to or override this mapping by modifying the dockerLabelSchema setting key, e.g. like this:

dockerLabelSchema in Docker := (dockerLabelSchema in Docker).value.copy(
  usage = Some("/usr/doc/app-usage.txt")
)

Default mapping

This table describes the default mapping of SBT keys or otherwise to label-schema keys.

source label-schema
sbt.Keys.name org.label-schema.name
sbt.Keys.description org.label-schema.description
now org.label-schema.build-date
sbt.Keys.version org.label-schema.version
sbt.Keys.apiUrl or sbt.Keys.projectInfo.organizationHomepage org.label-schema.url
sbt.Keys.organizationName org.label-schema.vendor
sbt.Keys.scmInfo.browserUrl or git remote url org.label-schema.vcs-url
git commit head org.label-schema.vcs-ref

Contribution Policy

Contributions via GitHub pull requests are gladly accepted from their original author. Along with any pull requests, please state that the contribution is your original work and that you license the work to the project under the project's open source license. Whether or not you state this explicitly, by submitting any copyrighted material via pull request, email, or other means you agree to license the material under the project's open source license and warrant that you have the legal authority to do so.

License

This code is open source software licensed under the MIT License.