Rancher is a tool to manage your kubernetes cluster
The installation steps are here
https://gist.github.com/kiranchavala/893ec350dd55f9fb4747b602208bb4fc
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| Installing RKE and Rancher | |
| Ubuntu 20.04 | |
| 1 vim /etc/ssh/sshd_config | |
| 2 systemctl restart sshd | |
| 3 sudo apt-get update | |
| 4 sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common | |
| 5 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - | |
| 6 sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu \ | |
| $(lsb_release -cs) \ | |
| stable" | |
| 7 sudo apt-get update | |
| 8 sudo apt-get install docker-ce docker-ce-cli containerd.io | |
| 9 systemctl status docker | |
| 10 usermod -aG docker root | |
| 11 sysctl net.bridge.bridge-nf-call-iptables=1 | |
| 12. Copy the public ssh key where rke client is installed to the rancher server | |
| kiranchavala@Kirans-MacBook-Pro .ssh % scp id_rsa.pub root@10.206.153.79:/root/ | |
| root@master2:~# cat ~/id_rsa.pub >> ~/.ssh/authorized_keys | |
| For centos host make sure it's a non root user | |
| Install Rke client | |
| brew install rke | |
| rke config ---> this will generate cluster.yaml | |
| rke up | |
| cp kube_config_cluster.yml .kube/config | |
| kubectl get nodes | |
| -------- | |
| Installing Rancher | |
| 1.Install helm on your client | |
| brew install helm | |
| helm repo add rancher-latest https://releases.rancher.com/server-charts/latest | |
| kubectl create namespace cattle-system | |
| 2. Install the cert manager | |
| kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v0.15.0/cert-manager.crds.yaml | |
| kubectl create namespace cert-manager | |
| helm repo add jetstack https://charts.jetstack.io | |
| helm repo update | |
| helm install \ | |
| cert-manager jetstack/cert-manager \ | |
| --namespace cert-manager \ | |
| --version v0.15.0 | |
| kubectl get pods --namespace cert-manager | |
| make sure all cer-pods are running | |
| 3. Rancher | |
| helm install rancher rancher-latest/rancher \ | |
| --namespace cattle-system \ | |
| --set hostname=rancher.my.org | |
| Replace rancher.my.org with the hostname of ubuntu server(master from hostname command) | |
| kubectl -n cattle-system get deploy rancher | |
| https://master/ | |
| You can set the password and url you want to access rancher from | |
| Ref | |
| https://docs.docker.com/engine/install/ubuntu/ | |
| https://rancher.com/docs/rke/latest/en/os/ | |
| https://rancher.com/docs/rancher/v2.x/en/installation/k8s-install/helm-rancher/ | |