Packer Plugin Power VS
This repository is a template for a Packer multi-component plugin. It is intended as a starting point for creating Packer plugins, containing:
These folders contain boilerplate code that you will need to edit to create your own Packer multi-component plugin.
A full guide to creating Packer plugins can be found at Extending Packer.
In this repository you will also find a pre-defined GitHub Action configuration for the release workflow
(.goreleaser.yml
and .github/workflows/release.yml
). The release workflow configuration makes sure the GitHub
release artifacts are created with the correct binaries and naming conventions.
Please see the GitHub template repository documentation
for how to create a new repository from this template on GitHub.
Packer plugin projects
Here's a non exaustive list of Packer plugins that you can checkout:
Looking at their code will give you good examples.
Running Acceptance Tests
Make sure to install the plugin with go build .
and to have Packer installed locally.
Then source the built binary to the plugin path with cp packer-plugin-scaffolding ~/.packer.d/plugins/packer-plugin-scaffolding
Once everything needed is set up, run:
PACKER_ACC=1 go test -count 1 -v ./... -timeout=120m
This will run the acceptance tests for all plugins in this set.
Test Plugin Example Action
This scaffolding configures a manually triggered plugin test action.
By default, the action will run Packer at the latest version to init, validate, and build the example configuration
within the example folder. This is useful to quickly test a basic template of your plugin against Packer.
The example must contain the required_plugins
block and require your plugin at the latest or any other released version.
This will help test and validate plugin releases.
Registering Documentation on Packer.io
Documentation for a plugin is maintained within the docs
directory and served on GitHub.
To include plugin docs on Packer.io a global pre-hook has been added to the main scaffolding .goreleaser.yml file, that if uncommented will generate and include a docs.zip file as part of the plugin release.
The docs.zip
file will contain all of the .mdx
files under the plugins root docs/
directory that can be consumed remotely by Packer.io.
Once the first docs.zip
file has been included into a release you will need to open a one time pull-request against hashicorp/packer to register the plugin docs.
This is done by adding the block below for the respective plugin to the file website/data/docs-remote-navigation.js.
{
"title": "Scaffolding",
"path": "scaffolding",
"repo": "hashicorp/packer-plugin-scaffolding",
"version": "latest",
"sourceBranch": "main"
}
If a plugin maintainer wishes to only include a specific version of released docs then the "version"
key in the above configuration should be set to a released version of the plugin. Otherwise it should be set to "latest"
.
The "sourceBranch"
key in the above configuration ensures potential contributors can link back to source files in the plugin repository from the Packer docs site. If a "sourceBranch"
value is not present, it will default to "main"
.
The documentation structure needed for Packer.io can be generated manually, by creating a simple zip file called docs.zip
of the docs directory and included in the plugin release.
[[ -d docs/ ]] && zip -r docs.zip docs/
Once the first docs.zip
file has been included into a release you will need to open a one time pull-request against hashicorp/packer to register the plugin docs.
Requirements
Packer Compatibility
This scaffolding template is compatible with Packer >= v1.7.0