Local k8s cluster with kind

Kind runs a k8s cluster in docker.

Basic setup

Please install and configure Kind as described here:

• Installation
• Kubeconfig

Optional:

• mkcert for TLS

Create a cluster

Create a k8s cluster (v1.20.15) with 3 nodes and nginx-ingress (v1.2.1):

./createCluster.sh [clusterName]

If mkcert is available, cert-manager with a CA Cluster Issuer named ca-cluster-issuer for mkcert CA will also be installed.

Delete a cluster

Tear down the cluster with

./deleteCluster.sh [clusterName]

Test Setup

There is a small configuration script to test the cluster, which will create

• a namespace kind-test
• a deployment/service/ingress for docker.io/mendhak/http-https-echo
• a deployment/service/ingress for docker.io/tomcat:9-jre17

kubectl apply -f test.yaml

echo deployment

The reachability of the echo deployment can be tested with

curl localhost/foo

which should return bar.

tomcat pod

The tomcat is deployed without any webapps, so

curl localhost/tomcat

should return a 404

Cluster issuer

To test the ca-cluster-issuer you can use this configuration:

kubectl apply -f test-ca.yaml

Afterwards the above curl commands have to be executed with https://<url>