Open source

Optimize Docker builds

Recipe IDorg.openrewrite.docker.DockerBuildOptimizationArtifactorg.openrewrite:rewrite-docker

Apply build optimization best practices to Dockerfiles. This includes combining RUN instructions to reduce layers and adding cleanup commands to reduce image size.

Composite recipeoptimizationdockerApache 2.0

Add to your build

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~/.gradle/gradle.properties

codeGenomeUsername=you@example.com
codeGenomeToken=YOUR_DOWNLOAD_TOKEN

build.gradle.kts

plugins {
    id("org.openrewrite.rewrite") version("latest.release")
}

rewrite {
    activeRecipe("org.openrewrite.docker.DockerBuildOptimization")
}

repositories {
    mavenCentral()
    maven {
        url = uri("https://artifacts.codegenomeproject.org/maven")
        credentials {
            username = providers.gradleProperty("codeGenomeUsername").get()
            password = providers.gradleProperty("codeGenomeToken").get()
        }
    }
}

dependencies {
    rewrite("org.openrewrite:rewrite-docker:8.92.8")
}

Then run

./gradlew rewriteRun

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.docker.DockerBuildOptimization

If the recipe isn’t available locally, install it with:

mod config recipes jar install org.openrewrite:rewrite-docker:RELEASE

Definition

This recipe runs the following recipes in order.

Combine consecutive RUN instructionsorg.openrewrite.docker.CombineRunInstructions
Add apt-get cleanuporg.openrewrite.docker.AddAptGetCleanup

Data tables

Structured output this recipe can produce.

Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats