Rancher K8s 구성 - 5(Rancher UI 구성)

2024.02.15 - [Rancher k8s] - Rancher K8s 구성 - 1(DNS)

Rancher K8s 구성 - 1(DNS)

2024.02.15 - [Rancher k8s] - Rancher K8s 구성 - 2(HAproxy)

Rancher K8s 구성 - 2(HAproxy)

2024.02.20 - [Rancher k8s] - Rancher K8s 구성 - 3(Master, Worker)

Rancher K8s 구성 - 3(Master, Worker)

2024.02.21 - [Rancher k8s] - Rancher K8s 구성 - 4(MetalLB & Nginx Ingress 구성)

Rancher K8s 구성 - 4(MetalLB & Nginx Ingress 구성)

2024.02.21 - [Rancher k8s] - Rancher K8s 구성 - 6(Ceph Storage 구성)

Rancher K8s 구성 - 6(Ceph Storage 구성)

---

Rancher UI 구성 (admin / xgk8stest1234!@)

# cert-manager crd 및 pod 생성(시간 좀 걸림)
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.13.3/cert-manager.crds.yaml
helm repo add jetstack https://charts.jetstack.io --force-update
helm repo update
helm install \
  cert-manager jetstack/cert-manager \
  --namespace cert-manager \
  --create-namespace \
  --version v1.13.3

# 확인
kubectl get pod -n cert-manager -o wide
NAME                                       READY   STATUS    RESTARTS   AGE   IP          NODE             NOMINATED NODE   READINESS GATES
cert-manager-8db45d64b-jlkpb               1/1     Running   0          20s   10.42.5.5   r1-k8s-workre3   <none>           <none>
cert-manager-cainjector-5c8d6f6646-5ss8p   1/1     Running   0          20s   10.42.4.6   r1-k8s-workre2   <none>           <none>
cert-manager-webhook-7c7d969c76-pw6ns      1/1     Running   0          20s   10.42.4.7   r1-k8s-workre2   <none>           <none>

# cattle-system 네임스페이스 생성
kubectl create namespace cattle-system
namespace/cattle-system created

# Rancher UI 배포
helm repo add rancher-stable https://releases.rancher.com/server-charts/stable
helm repo update
helm search repo rancher-stable
NAME                  	CHART VERSION	APP VERSION	DESCRIPTION
rancher-stable/rancher	2.8.2        	v2.8.2     	Install Rancher Server to manage Kubernetes clu...

helm install rancher rancher-stable/rancher --namespace cattle-system --set hostname=rancher-ui.internal.xg.com --set replicas=1
----------------------------------------------------------------------------
NOTES:
Rancher Server has been installed.

NOTE: Rancher may take several minutes to fully initialize. Please standby while Certificates are being issued, Containers are started and the Ingress rule comes up.

Check out our docs at https://rancher.com/docs/

If you provided your own bootstrap password during installation, browse to https://rancher-ui.internal.xg.com to get started.

If this is the first time you installed Rancher, get started by running this command and clicking the URL it generates:

```
echo https://rancher-ui.internal.xg.com/dashboard/?setup=$(kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}')
```

To get just the bootstrap password on its own, run:

```
kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}{{ "\n" }}'
```

Happy Containering!

---

# 개인피씨 호스트네임 설정
10.10.X.1 rancher-ui.internal.xg.com

# 사이트 접속(3~5분 뒤 접속) 후 패스워드 변경
echo https://rancher-ui.internal.xg.com/dashboard/?setup=$(kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}')
https://rancher-ui.internal.xg.com/dashboard/?setup=qzg6429ffh7vdg8qgw8bs54s5hgrf279x9t2hfb6wb4ggbxtvtlp9j

# 패스워드 확인
kubectl get secret --namespace cattle-system bootstrap-secret -o go-template='{{.data.bootstrapPassword|base64decode}}{{ "\n" }}'
srdb8kcl88zrrdtrbscx7krgpztlpgx57xncgjqbqv4j7bxf86fxwg

---

브라우저에서 Rancher UI 접속 확인

# 브라우저 접속 후 로그인 & 패스워드 변경 (user/pw : admin / xgk8stest1234!@)
https://rancher-ui.internal.xg.com