kind.sh

#!/bin/bash

# based on
# https://github.com/hyperledger-labs/fabric-operator/blob/cc26bdb71599428a2879b40274376dde37f341a5/sample-network-multi-org/scripts/kind_with_nginx.sh#L1

set -eo pipefail
set -x

KIND_CLUSTER_IMAGE=kindest/node:v1.24.4

cat << EOF | kind create cluster --name kind --image $KIND_CLUSTER_IMAGE --config=-
---
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
    kubeadmConfigPatches:
      - |
        kind: InitConfiguration
        nodeRegistration:
          kubeletExtraArgs:
            node-labels: "ingress-ready=true"
    extraPortMappings:
      - containerPort: 80
        hostPort: 80
        protocol: TCP
      - containerPort: 443
        hostPort: 443
        protocol: TCP
networking:
  apiServerAddress: 127.0.0.1
  apiServerPort: 8888
EOF

kubectl apply -f https://raw.githubusercontent.com/stakater/Reloader/v1.0.12/deployments/kubernetes/reloader.yaml

kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.11.0/cert-manager.yaml

sleep 5

kubectl -n cert-manager rollout status deploy/cert-manager
kubectl -n cert-manager rollout status deploy/cert-manager-cainjector
kubectl -n cert-manager rollout status deploy/cert-manager-webhook

kubectl apply -k kind/nginx

sleep 10

kubectl wait \
  --namespace ingress-nginx \
  --for=condition=ready pod \
  --selector=app.kubernetes.io/component=controller \
  --timeout=3m

CLUSTER_IP=$(kubectl -n ingress-nginx get svc ingress-nginx-controller -o json | jq -r .spec.clusterIP)

cat << EOF | kubectl apply -f -
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: coredns
  namespace: kube-system
data:
  Corefile: |
    .:53 {
        errors
        health {
           lameduck 5s
        }
        ready
        rewrite name regex (.*)\.localho\.st host.ingress.internal
        hosts {
          ${CLUSTER_IP} host.ingress.internal
          fallthrough
        }
        kubernetes cluster.local in-addr.arpa ip6.arpa {
           pods insecure
           fallthrough in-addr.arpa ip6.arpa
           ttl 30
        }
        prometheus :9153
        forward . /etc/resolv.conf {
           max_concurrent 1000
        }
        cache 30
        loop
        reload
        loadbalance
    }
EOF

kubectl -n kube-system rollout restart deployment/coredns