#!/usr/bin/env bash
set -o errexit
export PATH=$PATH:$(go env GOPATH)/bin

reg_name="kind-registry"
reg_port="5001"

# Build utility image if it doesn't already exist
if [ "$(podman image list --format='{{.Repository}}:{{.Tag}}' 2>/dev/null | cut -d/ -f2 | tr '[:upper:]' '[:lower:]' | egrep 'utility:latest')" != 'utility:latest' ]; then
       	podman build -t utility .
fi

# Deploy local registry container
if [ "$(podman inspect -f '{{.State.Running}}' ${reg_name} 2>/dev/null || true)" != 'true' ]; then
	podman run -d -p "127.0.0.1:${reg_port}:5000" --name "${reg_name}" registry:2
fi

# Create cluster, with ingress and registry patches
if [ "$(kind get clusters -q | egrep '^ek-demo$' 2>/dev/null)" != "ek-demo" ]; then
	cat <<-EOF | kind create cluster -n ek-demo --image kindest/node:v1.24.15 --kubeconfig .kube/config --config=-
	kind: Cluster
	apiVersion: kind.x-k8s.io/v1alpha4
	containerdConfigPatches:
	- |-
	  [plugins."io.containerd.grpc.v1.cri".registry]
	    config_path = "/etc/containerd/certs.d"
	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
	- role: worker
	- role: worker
	- role: worker
	EOF
fi

# Add registry to each node
REGISTRY_DIR="/etc/containerd/certs.d/localhost:${reg_port}"
for node in $(kind get nodes -q --name ek-demo); do
  podman exec "${node}" mkdir -p "${REGISTRY_DIR}"
  cat <<EOF | podman exec -i "${node}" cp /dev/stdin "${REGISTRY_DIR}/hosts.toml"
[host."http://${reg_name}:5000"]
EOF
done

if [ "$(podman inspect -f='{{json .NetworkSettings.Networks.kind}}' ${reg_name})" = 'null' ]; then
  podman network connect "kind" "${reg_name}"
fi

cat <<EOF | podman run -i --net host -h utility -v .kube/:/root/.kube/:Z -v ./:/work:Z -w /work utility kubectl apply -f -
apiVersion: v1
kind: ConfigMap
metadata:
  name: local-registry-hosting
  namespace: kube-public
data:
  localRegistryHosting.v1: |
    host: "localhost:${reg_port}"
    help: "https://kind.sigs.k8s.io/docs/user/local-registry/"
EOF

podman run -i --net host -h utility -v .kube/:/root/.kube/:Z -v ./:/work:Z -w /work utility kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml
podman run -i --net host -h utility -v .kube/:/root/.kube/:Z -v ./:/work:Z -w /work utility kubectl wait --namespace metallb-system --for=condition=ready pod --selector=app=metallb --timeout=90s
export RANGESTART=$(podman network inspect -f '{{range .Subnets}}{{if eq (len .Subnet.IP) 4}}{{.Subnet}}{{end}}{{end}}' kind | cut -d. -f1-3)
cat metallb.templ | envsubst | podman run -i --net host -h utility -v .kube/:/root/.kube/:Z -v ./:/work:Z -w /work utility kubectl apply -f -


podman run -i --net host -h utility -v .kube/:/root/.kube/:Z -v ./:/work:Z -w /work utility kubectl apply -f https://projectcontour.io/quickstart/contour.yaml

podman run -i --net host -h utility -v .kube/:/root/.kube/:Z -v ./:/work:Z -w /work utility kubectl patch daemonsets -n projectcontour envoy -p '{"spec":{"template":{"spec":{"nodeSelector":{"ingress-ready":"true"},"tolerations":[{"key":"node-role.kubernetes.io/control-plane","operator":"Equal","effect":"NoSchedule"},{"key":"node-role.kubernetes.io/master","operator":"Equal","effect":"NoSchedule"}]}}}}'