Installing Rancher and RKE

Installing Rancher and RKE

Installing RKE and Rancher

Ubuntu 22.04

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 userdeploy
11  sysctl net.bridge.bridge-nf-call-iptables=1
12. Copy the public ssh key where rke client is installed to the rancher server 


Install Rke client 

brew install rke

rke config ---> this will generate cluster.yaml

rke up or (rke up --ssh-agent-auth --ignore-docker-version)

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 -f https://github.com/cert-manager/cert-manager/releases/download/v1.7.1/cert-manager.crds.yaml
customresourcedefinition.apiextensions.k8s.io/certificaterequests.cert-manager.io created
customresourcedefinition.apiextensions.k8s.io/certificates.cert-manager.io created
customresourcedefinition.apiextensions.k8s.io/challenges.acme.cert-manager.io created
customresourcedefinition.apiextensions.k8s.io/clusterissuers.cert-manager.io created
customresourcedefinition.apiextensions.k8s.io/issuers.cert-manager.io created
customresourcedefinition.apiextensions.k8s.io/orders.acme.cert-manager.io created

helm upgrade -i cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace --version v1.7.1
helm repo add jetstack https://charts.jetstack.io
helm repo update

kubectl get pods --namespace cert-manager


make sure all cer-pods are running 


3. Rancher 

helm install rancher rancher-stable/rancher --namespace cattle-system --set hostname=xxx.yyy.zzz

Replace rancher.my.org with the hostname of ubuntu server(master from hostname command)


kubectl -n cattle-system rollout status deploy/rancher        
Waiting for deployment "rancher" rollout to finish: 0 of 3 updated replicas are available...


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/