A simple Drone plugin for updating Kubernetes resources from yaml templates. Follows from vallard/drone-kube. The plugin will create a plugin if it doesn't already exist.

This plugin supports deployments, configmaps, ingresses, and services.

Usage: See drone.md

Deployment, service, ingress templates

Deployment config files are first interpreted by aymerick/raymond (handlebarsjs equivalent). You can use all available raymond expressions and anything you put in settings will be made available in your deployment template e.g. {{namespace}}. See example/deployment.template.yaml for a complete example.

Config maps from files

In this case, you can create a template just like deployment.yaml but you can provide a file path (relative to the repo's root) in the plugin setting configmap_file. (Currently only accepts utf-8 encoded data). Like deployments, this will both create new or update existing configmaps (based on the configmap name).

Adding a service account to Kubernetes that can manage deployments

See example/Role.yaml, example/ServiceAccount.yaml, example/RoleBinding.yaml.

Notes:

The watching process is not currently reliable i.e. it doesn't properly wait for new deployments to become live. Not entirely sure how this should behave but I think behind a flag would make sense. PRs welcome.

Development notes

Kubernetes client is a little confusing with dependencies but does work with go.mod as seen here
kubernetes/client-go installation notes
Creating a Drone plugin in Go
Client-go API Docs @ godoc.org
Testing with minikube (OSX: brew cask install minikube)

Acknowledgements

@vallard for the original plugin
@jbonzo for ingress, service support, improved error handling etc