distributed-cache-on-k8s-poc

[PoC] Distributed Cache with Akka Cluster Sharding and Akka HTTP on Kubernetes

Running it locally (On Mac) with docker images from local registry

git clone https://github.com/sharma-rohit/distributed-cache-on-k8s-poc.git

1. Install minikube: brew cask install minikube

2. Inatall kubectl: brew install kubectl

3. Start minikube with --insecure-registry option:

   minikube start --insecure-registry localhost:5000

4. Setup minikube Ingress controller:

   minikube addons enable ingress

5. To make the local docker command use the minikube vm as docker host and all commands starting with docker affecting the minikube vm not the host computer run:

   eval $(minikube docker-env)

6. docker run -d -p 5000:5000 --restart=always --name registry -v /data/docker-registry:/var/lib/registry registry:2

7. To build and publish docker image to local registry of minikube run:

   sbt docker:publish

8. Create kubernetes manifests:

   kubectl create -f kubernetes/statefulset.yaml

   kubectl apply -f kubernetes/service.yaml

   kubectl apply -f kubernetes/headless_service.yaml

   kubectl apply -f kubernetes/ingress.yaml

9. To redirect traffic from the domain "distributed-cache.com" stated in ingress.yaml to our minikube cluster run:

   echo "$(minikube ip) distributed-cache.com" | sudo tee -a /etc/hosts

Check if it's working:

curl -v distributed-cache.com/cache-data/2055e73f-7db8-49ce-9eb6-3f9d80525284