Menginstall Rancher pada Kubernetes mempermudah pengelolaan dan orkestrasi cluster Kubernetes. Berikut adalah langkah-langkah singkat untuk menginstal Rancher:
- Persiapkan Cluster Kubernetes: Pastikan cluster Kubernetes sudah aktif dan dapat diakses. Rancher memerlukan cluster dengan versi Kubernetes yang didukung.
- Unduh Rancher Manifest: Dapatkan file manifest terbaru dari Rancher dengan menggunakan perintah
kubectl:
Instalasi Helm
sudo curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 sudo chmod 700 get_helm.sh sudo ./get_helm.sh
admin@master01:~$ sudo curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 [sudo] password for masadmin: admin@master01:~$ admin@master01:~$ ls -l total 100396 -rw-rw-r-- 1 admin admin 68 Aug 13 06:24 cert-manager-backup.yaml -rwxr-xr-x 1 root root 648 Aug 13 06:34 cert.sh -rw------- 1 admin admin 123345 Aug 21 01:59 cluster.rkestate -rw-r----- 1 admin admin 4622 Aug 21 01:58 cluster.yml -rw-r--r-- 1 root root 11694 Aug 21 14:42 get_helm.sh drwxr-xr-x 2 root root 4096 Jun 20 15:30 master admin@master01:~$ admin@master01:~$ sudo chmod 700 get_helm.sh admin@master01:~$
admin@master01:~$ sudo chmod 700 get_helm.sh
admin@master01:~$ sudo ./get_helm.sh Downloading https://get.helm.sh/helm-v3.15.4-linux-amd64.tar.gz Verifying checksum... Done. Preparing to install helm into /usr/local/bin helm installed into /usr/local/bin/helm admin@master01:~$
Check version
helm version
admin@master01:~$ helm version
version.BuildInfo{Version:"v3.15.4", GitCommit:"fa9efb07d9d8debbb4306d72af76a383895aa8c4", GitTreeState:"clean", GoVersion:"go1.22.6"}
admin@master01:~$Menambahkan helm repository
helm repo add rancher-latest https://releases.rancher.com/server-charts/latest helm repo add jetstack https://charts.jetstack.io helm repo update
admin@master01:~$ helm repo add rancher-latest https://releases.rancher.com/server-charts/stable "rancher-stable" has been added to your repositories masadmin@master01:~$ helm repo add jetstack https://charts.jetstack.io "jetstack" has been added to your repositories admin@master01:~$
admin@master01:~$ helm repo update Hang tight while we grab the latest from your chart repositories... ...Successfully got an update from the "jetstack" chart repository ...Successfully got an update from the "rancher-stable" chart repository Update Complete. ⎈Happy Helming!⎈ admin@master01:~$
Install cert manager
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.15.1/cert-manager.crds.yaml helm install cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace
admin@master01:~$ kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.15.1/cert-manager.crds.yaml customresourcedefinition.apiextensions.k8s.io/certificaterequests.cert-manager.io configured customresourcedefinition.apiextensions.k8s.io/certificates.cert-manager.io configured customresourcedefinition.apiextensions.k8s.io/challenges.acme.cert-manager.io configured customresourcedefinition.apiextensions.k8s.io/clusterissuers.cert-manager.io configured customresourcedefinition.apiextensions.k8s.io/issuers.cert-manager.io configured customresourcedefinition.apiextensions.k8s.io/orders.acme.cert-manager.io configured admin@master01:~$
admin@master01:~$ helm install cert-manager jetstack/cert-manager --namespace cert-manager --create-namespace NAME: cert-manager LAST DEPLOYED: Wed Aug 21 14:56:52 2024 NAMESPACE: cert-manager STATUS: deployed REVISION: 1 TEST SUITE: None NOTES: cert-manager v1.15.3 has been deployed successfully! In order to begin issuing certificates, you will need to set up a ClusterIssuer or Issuer resource (for example, by creating a 'letsencrypt-staging' issuer). More information on the different types of issuers and how to configure them can be found in our documentation: https://cert-manager.io/docs/configuration/ For information on how to configure cert-manager to automatically provision Certificates for Ingress resources, take a look at the `ingress-shim` documentation: https://cert-manager.io/docs/usage/ingress/ admin@master01:~$
Install Rancher
Melakukan instalasi rancher, sesuaikan untuk nama hostname nya, pastikan resolve dns atau setting /etc/host di laptop, kalau belum ada domain, bisa menggunakan alamat ip diikuti .sslip.io dns server ini akan meresolve ke ip kembali
helm install rancher rancher-latest/rancher --namespace cattle-system --set hostname=10.20.30.40.sslip.io --set replicas=3 --set bootstrapPassword=PassWordRancher --create-namespace
Pengecekan deployment
masadmin@master01:~$ kubectl -n cattle-system rollout status deploy/rancher deployment "rancher" successfully rolled out masadmin@master01:~$
admin@master01:~$ kubectl -n cattle-system rollout status deploy/rancher deployment "rancher" successfully rolled out masadmin@master01:~$ masadmin@master01:~$ kubectl get pods -n cattle-system NAME READY STATUS RESTARTS AGE helm-operation-h99ws 2/2 Running 0 83s helm-operation-skft9 2/2 Running 0 21s rancher-57d8d66fb-2wbt4 1/1 Running 0 4m9s rancher-57d8d66fb-92rd7 1/1 Running 0 4m9s rancher-57d8d66fb-l2tsj 1/1 Running 0 4m9s admin@master01:~$
Check Password Rancher
echo https://10.20.30.40.sslip.io/dashboard/?setup=$(kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}')