helm repo add rancher-stable https://releases.rancher.com/server-charts/stable
kubectl create namespace cattle-system

helm install rancher rancher-stable/rancher  --namespace cattle-system  --set hostname=idc.internal  --set bootstrapPassword=.... --set ingress.tls.source=rancher


helm upgrade rancher rancher-stable/rancher \
  --namespace cattle-system \
  --reuse-values \
  --set hostname=idc.internal \
  --set bootstrapPassword=KAYQE1QA7uwUZ8uI \
  --set ingress.enabled=false \
  --set ingress.tls.source=rancher

Poc-25_sts

POC-25_sts

vi sistemarancher.sh
# 1. recupera il ClusterIP del service "rancher" già creato dal chart
CLUSTERIP=$(kubectl get svc -n cattle-system rancher -o jsonpath='{.spec.clusterIP}')

# 2. patch del deployment per aggiungere hostAliases
kubectl patch deployment rancher -n cattle-system --type='json' \
  -p="[{\"op\":\"add\",\"path\":\"/spec/template/spec/hostAliases\",\"value\":[{\"ip\":\"$CLUSTERIP\",\"hostnames\":[\"idc.internal\"]}]}]"

# 3. crea il service NodePort per l'accesso dal browser
kubectl expose deployment rancher -n cattle-system --type=NodePort --port=443 --target-port=443 --name=rancher-nodeport

# 4. riavvia e segui i log
kubectl rollout restart deployment rancher -n cattle-system
kubectl -n cattle-system logs -l app=rancher -f