Cluster

172.1.0.10 manager.k3scluster.local 172.1.0.11 worker01.k3scluster.local 172.1.0.12 worker02.k3scluster.local

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Instalando manager

curl -sfL https://get.k3s.io | sh -

Alterar ip do server em /etc/rancher/k3s/k3s.yaml

criando link

ln -s /etc/rancher/k3s/k3s.yaml ~/.kube/config

matando os processos do k3s

k3s-killall.sh

executando novamente o daemon do k3s

k3s server --node-external-ip=172.1.0.10 2>%1 &

verificando se está ok e com ip correto

kubectl cluster-info kubectl get node

Adiconando agents no cluster

curl -sfL https://get.k3s.io | K3S_URL=https://172.1.0.10:6443 K3S_TOKEN=K103ba5c7608aac82ac966b616cb9f1dfab6d7d66b44396adf6719667e6c0be6215::server:b9698a48251dfc4dfbdb7e19f9ad9bce sh -

export K3S_URL=manager.k3scluster.local export K3S_TOKEN=K103ba5c7608aac82ac966b616cb9f1dfab6d k3s-killall.sh

k3s agent --server https://$K3S_URL:6443 --token ${K3S_TOKEN}

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Ajuste centos/8 mininal que instalei com o vagrant

cd /etc/yum.repos.d && sed -i 's/mirrorlist/###mirrorlist/g' /etc/yum.repos.d/CentOS-* && sed -i 's|###baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

echo '### Ajust VAR PATH' >> /etc/bashrc && echo PATH="$PATH:/usr/local/bin" >> /etc/bashrc

Obs.: desabilitei o SELinux em todos no manager e nos nodes

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erro incluir worker no cluster curl -sfL https://get.k3s.io | K3S_URL=https://172.1.0.10:6443 K3S_TOKEN=K10ff2729b899da11807d407abfc4d4c9cd9c2bf5cb0d3908ed4022c29896c5ddbc::server:5f60b98250c4262439d0ae0542101931 sh -

The connection to the server localhost:8080 was refused - did you specify the right host or port?

[root@manager ~]### kubectl cluster-info Kubernetes control plane is running at https://127.0.0.1:6443 CoreDNS is running at https://127.0.0.1:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy Metrics-server is running at https://127.0.0.1:6443/api/v1/namespaces/kube-system/services/https:metrics-server:https/proxy

Obs.: A doc já dizia: A kubeconfig file will be written to /etc/rancher/k3s/k3s.yaml and the kubectl installed by K3s will automatically use it

==> server: https://127.0.0.1:6443 ------> alterar para o ip do servidor

fonte: k3s-io/k3s#3862 server

Install the k3s on my server
edit /etc/rancher/k3s/k3s.yaml and change to my server IP address,
Copy /etc/rancher/k3s/k3s.yaml on my server machine itself to ~/.kube/config