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commands + output
~ # ssh -o StrictHostKeyChecking=no -i ~cbsd/.ssh/id_rsa ubuntu@10.0.10.10 sudo ip address add 10.0.0.2/32 dev enp0s5:1
~ # ipfw add 300 fwd 10.0.10.10 ip from any to 10.0.0.2 keep-state
00300 fwd 10.0.10.10 ip from any to 10.0.0.2 keep-state :default
~ # k3sup install \
--host server-0 \
--user ubuntu \
--cluster \
--k3s-channel stable \
--ssh-key ~cbsd/.ssh/id_rsa \
--k3s-extra-args '--cluster-cidr 10.1.0.0/16 --service-cidr 10.2.0.0/16 --cluster-dns 10.2.0.10'
Running: k3sup install
2020/12/25 17:18:38 server-0
Public IP: server-0
[INFO] Finding release for channel stable
[INFO] Using v1.19.5+k3s2 as release
[INFO] Downloading hash https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/sha256sum-amd64.txt
[INFO] Downloading binary https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/k3s
[INFO] Verifying binary download
[INFO] Installing k3s to /usr/local/bin/k3s
[INFO] Creating /usr/local/bin/kubectl symlink to k3s
[INFO] Creating /usr/local/bin/crictl symlink to k3s
[INFO] Creating /usr/local/bin/ctr symlink to k3s
[INFO] Creating killall script /usr/local/bin/k3s-killall.sh
[INFO] Creating uninstall script /usr/local/bin/k3s-uninstall.sh
[INFO] env: Creating environment file /etc/systemd/system/k3s.service.env
[INFO] systemd: Creating service file /etc/systemd/system/k3s.service
[INFO] systemd: Enabling k3s unit
Created symlink /etc/systemd/system/multi-user.target.wants/k3s.service → /etc/systemd/system/k3s.service.
[INFO] systemd: Starting k3s
Result: [INFO] Finding release for channel stable
[INFO] Using v1.19.5+k3s2 as release
[INFO] Downloading hash https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/sha256sum-amd64.txt
[INFO] Downloading binary https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/k3s
[INFO] Verifying binary download
[INFO] Installing k3s to /usr/local/bin/k3s
[INFO] Creating /usr/local/bin/kubectl symlink to k3s
[INFO] Creating /usr/local/bin/crictl symlink to k3s
[INFO] Creating /usr/local/bin/ctr symlink to k3s
[INFO] Creating killall script /usr/local/bin/k3s-killall.sh
[INFO] Creating uninstall script /usr/local/bin/k3s-uninstall.sh
[INFO] env: Creating environment file /etc/systemd/system/k3s.service.env
[INFO] systemd: Creating service file /etc/systemd/system/k3s.service
[INFO] systemd: Enabling k3s unit
[INFO] systemd: Starting k3s
Created symlink /etc/systemd/system/multi-user.target.wants/k3s.service → /etc/systemd/system/k3s.service.
Saving file to: /root/kubeconfig
# Test your cluster with:
export KUBECONFIG=/root/kubeconfig
kubectl config set-context default
kubectl get node -o wide
~ # k3sup join \
--host server-1 \
--user ubuntu \
--server \
--server-host kubernetes.k3s.local \
--server-user ubuntu \
--k3s-channel stable \
--ssh-key ~cbsd/.ssh/id_rsa \
--k3s-extra-args '--cluster-cidr 10.1.0.0/16 --service-cidr 10.2.0.0/16 --cluster-dns 10.2.0.10'
Running: k3sup join
Server IP: kubernetes.k3s.local
K1094729103bf24c9e6fc312577915112324a2a3d940ac670f87cb7d8de8804625f::server:19433d7161596d0dac7d9ec13a5a91e3
[INFO] Finding release for channel stable
[INFO] Using v1.19.5+k3s2 as release
[INFO] Downloading hash https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/sha256sum-amd64.txt
[INFO] Downloading binary https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/k3s
[INFO] Verifying binary download
[INFO] Installing k3s to /usr/local/bin/k3s
[INFO] Creating /usr/local/bin/kubectl symlink to k3s
[INFO] Creating /usr/local/bin/crictl symlink to k3s
[INFO] Creating /usr/local/bin/ctr symlink to k3s
[INFO] Creating killall script /usr/local/bin/k3s-killall.sh
[INFO] Creating uninstall script /usr/local/bin/k3s-uninstall.sh
[INFO] env: Creating environment file /etc/systemd/system/k3s.service.env
[INFO] systemd: Creating service file /etc/systemd/system/k3s.service
[INFO] systemd: Enabling k3s unit
Created symlink /etc/systemd/system/multi-user.target.wants/k3s.service → /etc/systemd/system/k3s.service.
[INFO] systemd: Starting k3s
Logs: Created symlink /etc/systemd/system/multi-user.target.wants/k3s.service → /etc/systemd/system/k3s.service.
Output: [INFO] Finding release for channel stable
[INFO] Using v1.19.5+k3s2 as release
[INFO] Downloading hash https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/sha256sum-amd64.txt
[INFO] Downloading binary https://github.com/rancher/k3s/releases/download/v1.19.5+k3s2/k3s
[INFO] Verifying binary download
[INFO] Installing k3s to /usr/local/bin/k3s
[INFO] Creating /usr/local/bin/kubectl symlink to k3s
[INFO] Creating /usr/local/bin/crictl symlink to k3s
[INFO] Creating /usr/local/bin/ctr symlink to k3s
[INFO] Creating killall script /usr/local/bin/k3s-killall.sh
[INFO] Creating uninstall script /usr/local/bin/k3s-uninstall.sh
[INFO] env: Creating environment file /etc/systemd/system/k3s.service.env
[INFO] systemd: Creating service file /etc/systemd/system/k3s.service
[INFO] systemd: Enabling k3s unit
[INFO] systemd: Starting k3s
[ repeat for server-2]
~ # ssh -o StrictHostKeyChecking=no -i ~cbsd/.ssh/id_rsa ubuntu@10.0.10.11 sudo ip address add 10.0.0.2/32 dev enp0s5:1
~ # ssh -o StrictHostKeyChecking=no -i ~cbsd/.ssh/id_rsa ubuntu@10.0.10.12 sudo ip address add 10.0.0.2/32 dev enp0s5:1
~ # export KUBECONFIG=/root/kubeconfig
~ # kubectl config set-context default
Context "default" modified.
~ # sed -I "" -e 's/127.0.0.1/10.0.0.2/' $KUBECONFIG
~ # kubectl get nodes -o wide
NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME
server-0 Ready etcd,master 15m v1.19.5+k3s2 10.0.10.10 <none> Ubuntu 20.04.1 LTS 5.4.0-42-generic containerd://1.4.3-k3s1
server-1 Ready etcd,master 19s v1.19.5+k3s2 10.0.10.11 <none> Ubuntu 20.04.1 LTS 5.4.0-42-generic containerd://1.4.3-k3s1
server-2 Ready etcd,master 9m20s v1.19.5+k3s2 10.0.10.12 <none> Ubuntu 20.04.1 LTS 5.4.0-42-generic containerd://1.4.3-k3s1
~ #
Raw
commands.sh
# Create VIP on server-0
ssh -o StrictHostKeyChecking=no -i ~cbsd/.ssh/id_rsa ubuntu@10.0.10.10 sudo ip address add 10.0.0.2/32 dev enp0s5:1
ipfw add 300 fwd 10.0.10.10 ip from any to 10.0.0.2 keep-state
k3sup install \
--host server-0 \
--user ubuntu \
--cluster \
--k3s-channel stable \
--ssh-key ~cbsd/.ssh/id_rsa \
--k3s-extra-args '--cluster-cidr 10.1.0.0/16 --service-cidr 10.2.0.0/16 --cluster-dns 10.2.0.10'
k3sup join \
--host server-1 \
--user ubuntu \
--server \
--server-host kubernetes.k3s.local \
--server-user ubuntu \
--k3s-channel stable \
--ssh-key ~cbsd/.ssh/id_rsa \
--k3s-extra-args '--cluster-cidr 10.1.0.0/16 --service-cidr 10.2.0.0/16 --cluster-dns 10.2.0.10'
k3sup join \
--host server-2 \
--user ubuntu \
--server \
--server-host kubernetes.k3s.local \
--server-user ubuntu \
--k3s-channel stable \
--ssh-key ~cbsd/.ssh/id_rsa \
--k3s-extra-args '--cluster-cidr 10.1.0.0/16 --service-cidr 10.2.0.0/16 --cluster-dns 10.2.0.10'
# Create VIPs on server-1 and server-2
ssh -o StrictHostKeyChecking=no -i ~cbsd/.ssh/id_rsa ubuntu@10.0.10.11 sudo ip address add 10.0.0.2/32 dev enp0s5:1
ssh -o StrictHostKeyChecking=no -i ~cbsd/.ssh/id_rsa ubuntu@10.0.10.12 sudo ip address add 10.0.0.2/32 dev enp0s5:1
export KUBECONFIG=/root/kubeconfig
kubectl config set-context default
# In case the server endpoint is set to localhost, we'll change it to our VIP
sed -I "" -e 's/127.0.0.1/10.0.0.2/' $KUBECONFIG
kubectl get nodes -o wide
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