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a cluster with 3 control-plane nodes and 1 workers using kind 

Command Output: I0727 10:09:26.061729     249 join.go:413] [preflight] found NodeName empty; using OS hostname as NodeName

Se você está recebendo o erro acima, execute os comandos abaixo:

sysctl net.bridge.bridge-nf-call-iptables=0
sysctl net.bridge.bridge-nf-call-arptables=0
sysctl net.bridge.bridge-nf-call-ip6tables=0


Resultado:

Creating cluster "ha" ...
✓ Ensuring node image (kindest/node:v1.29.2) 🖼
✓ Preparing nodes 📦 📦 📦 📦
✓ Configuring the external load balancer ⚖️
✓ Writing configuration 📜
✓ Starting control-plane 🕹️
✓ Installing CNI 🔌
✓ Installing StorageClass 💾
✓ Joining more control-plane nodes 🎮
✓ Joining worker nodes 🚜
Set kubectl context to "kind-ha"
You can now use your cluster with:

kubectl cluster-info --context kind-ha

sudo nano /etc/sysctl.conf

net.bridge.bridge-nf-call-iptables = 0

net.bridge.bridge-nf-call-arptables = 0

net.bridge.bridge-nf-call-ip6tables = 0

sudo sysctl -p

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