coryodaniel / hello_operator

A greeting-server operator created with Bonny

HelloOperator

Hello world operator created with Bonny.

Bonny is a Kubernetes Operator SDK written in Elixir.

HelloOperator Docker Image

This operator contains all the resources necessary to define an operator (CRDs, RBAC, ServiceAccount, and Deployment). The operator itself creates a simple Deployment running the greeting-server and an HTTP Service.

The code for generating the lifecycle of a Greeting Deployment/Service is here.

Usage

Deploying the operator outside a cluster (development):

mix deps.get
mix compile

# Deploy to kubernetes
mix bonny.gen.manifest
kubectl apply -f ./manifest.yaml
iex -S mix

Deploying the operator inside a cluster (production):

mix deps.get
mix compile

# Build docker image
mix bonny.gen.dockerfile
export BONNY_IMAGE=YOUR_IMAGE_NAME_HERE
docker build -t ${BONNY_IMAGE} .
docker push ${BONNY_IMAGE}:latest

# Optionally, skip building the docker image and play with the operator
# export BONNY_IMAGE=quay.io/coryodaniel/hello_operator

# Deploy to kubernetes
mix bonny.gen.manifest --image ${BONNY_IMAGE}
kubectl apply -f ./manifest.yaml

Create two Greeting resources:

Create the "Hello" and "Hola" Greeting services:

kubectl apply -f ./greetings.yaml

Inspect the greeting resources:

# you should see two greetings
kubectl get greetings 

kubectl describe greetings/hello-server

kubectl describe greetings/hola-server

You should be able to browse to NodePort Service of each:

kubectl get svc/hello-server
kubectl get svc/hola-server

• http://HELLO_SERVICE_NODE_PORT/greeting/Chauncy - Hello, Chauncy
• http://HOLA_SERVICE_NODE_PORT/greeting/Chauncy - Hola, Chauncy

Kubernetes Client

This project uses a very trivial kubernetes client. It is not recommended for production.