gradle-helm-chart-publisher

gradle package helm chart and publish to git repository plugin

Gradle Plugin Portal plugin page

Helm chart is an integral part of a project, more often its definition is placed as closest to code as possible.

In order to be able to develop both at the same time helm allows to do chart versioning.

This plugin packages the chart and leverages the possibility of using git repository as a helm repository.

Basic usage

• add chart definition to helm foldder in your project directory

   ├── src                    
   ├── gradle                    
   ├── helm                    
   │   └── your-app-name
   │       ├── templates
   │       ├── values.yaml
   │       └── Chart.yaml
   └── ...

• add and configure plugin

plugins {
     id 'dk.kmd.helm.chart.publish'
 }
 helmChartPublisher {
    gitChartRepoUrl = https://github.com/path/to-your-repo.git"
 }

• execute task

$ ./gradlew publishHelmChart -PgitChartRepo.username=${GITUSERNAME} -PgitChartRepo.password=${GITPASSWORD} 

By default plugin releases chart placed in helm folder with project.version version.

Requirements

Plugin requires helm client in version 2.x or 3.x to be installed.

Workflow

• clone git repository where helm chart definitions are stored
• init helm client
• update chart dependencies
• package chart
• reindex helm chart repository
• push changes to git repository

Parameters

Parameter	Description	Default value	Flag	Environment variable	build.gradle property
Git chart repository URL	URL to a git repository in which helm charts are stored. Accepts both ssh and https protocols.	-	gitChartRepo.url	-	helmChartPublisher.gitChartRepoUrl
Git username	Git repository username	-	gitChartRepo.username	HELM_CHART_PUBLISH_GIT_REPO_USERNAME	helmChartPublisher.gitUsername
Git password	Git repository password	-	gitChartRepo.password	HELM_CHART_PUBLISH_GIT_REPO_PASSWORD	-
Git repository working directory	Directory in git repository where helm chart repository is stored	/ (root folder of the repository)	gitChartRepo.workDir	-	helmChartPublisher.gitChartRepoWorkDir
Chart version	Version under which the chart will be published	project.version	chart.version	-	-
Chart name	Name of the chart (must be the same as name in chart valyes.yaml)	project.name	chart.name	-	helmChartPublisher.chartName
Chart definition path	Where in the project chart definition is stored	${projectDir}/helm/$chartName	chart.definitionPath	-	helmChartPublisher.chartDefinitionPath