Kubernetes Manifest Checker

Introduction

This Go app checks your local manifests (.yml files) against your Kubernetes cluster and does a diff to display any discrepancies. This only works for manifests that have been created using kubectl apply.

Currently, the files that will be checked must contain a single resource definition in each file.

Requirements

Ensure that go, glide and kubectl is installed on your system. Also make sure that your kubectl is pointed at the correct cluster.

Compile

Ensure that this project is in your $GOPATH/src/.

glide install
go build setup.go main.go

This will generate a binary main.

Usage

Place the compiled binary in the root directory of where you store your Kubernetes manifests. If your manifests ares stored in apps/:

./main apps

The app is configured to only check the resources that are specified. Currently, these resources are deployments, services and ingresses.

TODO

• Reduce binary size (right now it's ~30MB).
• Refactor code to allow other resources.
• Refactor code to allow for multiple resource definitions in the same YAML file.