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система_kubernetes [2025/07/29 15:53]
val [Deployment]
система_kubernetes [2025/10/31 14:49] (current)
val [Kubernetes Dashboard]
Line 1: Line 1:
 ====== Система Kubernetes ====== ====== Система Kubernetes ======
 +
 +  * [[https://​habr.com/​ru/​companies/​vk/​articles/​645985/​|Почему Kubernetes — это новый Linux: 4 аргумента]]
  
   * [[https://​kubernetes.io/​ru/​docs/​home/​|Документация по Kubernetes (на русском)]]   * [[https://​kubernetes.io/​ru/​docs/​home/​|Документация по Kubernetes (на русском)]]
Line 11: Line 13:
   * [[https://​habr.com/​ru/​companies/​domclick/​articles/​566224/​|Различия между Docker, containerd, CRI-O и runc]]   * [[https://​habr.com/​ru/​companies/​domclick/​articles/​566224/​|Различия между Docker, containerd, CRI-O и runc]]
   * [[https://​daily.dev/​blog/​kubernetes-cni-comparison-flannel-vs-calico-vs-canal|Kubernetes CNI Comparison: Flannel vs Calico vs Canal]]   * [[https://​daily.dev/​blog/​kubernetes-cni-comparison-flannel-vs-calico-vs-canal|Kubernetes CNI Comparison: Flannel vs Calico vs Canal]]
 +  * [[https://​habr.com/​ru/​companies/​slurm/​articles/​464987/​|Хранилища в Kubernetes: OpenEBS vs Rook (Ceph) vs Rancher Longhorn vs StorageOS vs Robin vs Portworx vs Linstor]]
 +  * [[https://​parshinpn.ru/​ru/​blog/​external-connectivity-kubernetes-calico|Настраиваем сетевую связность внешнего узла с кластером Kubernetes (route reflector)]]
  
   * [[https://​habr.com/​ru/​company/​vk/​blog/​542730/​|11 факапов PRO-уровня при внедрении Kubernetes и как их избежать]]   * [[https://​habr.com/​ru/​company/​vk/​blog/​542730/​|11 факапов PRO-уровня при внедрении Kubernetes и как их избежать]]
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 ... ...
 </​code><​code>​ </​code><​code>​
 +kubectl version
 +
 kubectl get all -o wide --all-namespaces kubectl get all -o wide --all-namespaces
 kubectl get all -o wide -A kubectl get all -o wide -A
Line 99: Line 105:
  
   * [[https://​minikube.sigs.k8s.io/​docs/​start/​|Documentation/​Get Started/​minikube start]]   * [[https://​minikube.sigs.k8s.io/​docs/​start/​|Documentation/​Get Started/​minikube start]]
 +  * [[https://​stackoverflow.com/​questions/​42564058/​how-can-i-use-local-docker-images-with-minikube|How can I use local Docker images with Minikube?]]
  
 <​code>​ <​code>​
Line 648: Line 655:
 $ ### kubectl delete deployment my-webd -n my-ns $ ### kubectl delete deployment my-webd -n my-ns
  
-$ mkdir gowebd-k8s/; cd $_+$ mkdir ??webd-k8s/; cd $_
  
 $ cat my-webd-deployment.yaml $ cat my-webd-deployment.yaml
Line 832: Line 839:
  
 $ kubectl get endpoints -n my-ns $ kubectl get endpoints -n my-ns
 +  или ​
 +$ kubectl get endpointslice -n my-ns
 </​code>​ </​code>​
 === NodePort === === NodePort ===
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   * [[https://​kubernetes.github.io/​ingress-nginx/​deploy/#​quick-start|NGINX ingress controller quick-start]]   * [[https://​kubernetes.github.io/​ingress-nginx/​deploy/#​quick-start|NGINX ingress controller quick-start]]
 +  * [[#​Работа с готовыми Charts]]
  
 === Minikube ingress-nginx-controller === === Minikube ingress-nginx-controller ===
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 $ ###kubectl delete secret/​gowebd-tls -n my-ns $ ###kubectl delete secret/​gowebd-tls -n my-ns
 </​code>​ </​code>​
 +=== cert-manager ===
  
 +  * [[Letsencrypt Certbot]]
 +  * [[https://​cert-manager.io/​docs/​tutorials/​acme/​nginx-ingress/​|cert-manager Securing NGINX-ingress]]
 +  * [[Сервис Keepalived]] для 443-го порта
 +  * [[Решение HAProxy]] для 80-го (cert-manager проверяет ссылку изнутри кластера)
 +<​code>​
 +увидеть ссылку
 +student@debian:​~/​gowebd-k8s$ kubectl -n my-ns get ingress -o yaml | less
 +
 +увидеть обработчик
 +student@debian:​~/​gowebd-k8s$ kubectl -n my-ns get pods
 +NAME                        READY   ​STATUS ​   RESTARTS ​  AGE
 +cm-acme-http-solver-5j2pr ​  ​1/​1 ​    ​Running ​  ​0 ​         28s
 +my-webd-78ffd6cc5f-4qplt ​   1/1     ​Running ​  ​0 ​         4d14h
 +my-webd-78ffd6cc5f-zpcsh ​   1/1     ​Running ​  ​0 ​         4d14h
 +</​code>​
 ==== Volumes ==== ==== Volumes ====
  
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 #    use-forwarded-headers:​ true #    use-forwarded-headers:​ true
 #    allow-snippet-annotations:​ true #    allow-snippet-annotations:​ true
 +#  service:
 +#    type: LoadBalancer
 +#    loadBalancerIP:​ "​192.168.X.64"​
 </​code><​code>​ </​code><​code>​
 $ helm template ingress-nginx -f values.yaml --repo https://​kubernetes.github.io/​ingress-nginx -n ingress-nginx | tee t2.yaml $ helm template ingress-nginx -f values.yaml --repo https://​kubernetes.github.io/​ingress-nginx -n ingress-nginx | tee t2.yaml
Line 2085: Line 2114:
  
 ===== Kubernetes Dashboard ===== ===== Kubernetes Dashboard =====
 +
 +  * https://​www.bytebase.com/​blog/​top-open-source-kubernetes-dashboard/​
  
   * https://​kubernetes.io/​docs/​tasks/​access-application-cluster/​web-ui-dashboard/​   * https://​kubernetes.io/​docs/​tasks/​access-application-cluster/​web-ui-dashboard/​
   * https://​github.com/​kubernetes/​dashboard/​blob/​master/​docs/​user/​access-control/​creating-sample-user.md   * https://​github.com/​kubernetes/​dashboard/​blob/​master/​docs/​user/​access-control/​creating-sample-user.md
 +
 +  * [[https://​kubernetes.io/​docs/​reference/​kubectl/​generated/​kubectl_create/​kubectl_create_token/​]]
 +  * [[https://​www.jwt.io/​|JSON Web Token (JWT) Debugger]]
  
 <​code>​ <​code>​
Line 2100: Line 2134:
   name: admin-user   name: admin-user
   namespace: kubernetes-dashboard   namespace: kubernetes-dashboard
 +  #namespace: default
 --- ---
 apiVersion: rbac.authorization.k8s.io/​v1 apiVersion: rbac.authorization.k8s.io/​v1
Line 2113: Line 2148:
   name: admin-user   name: admin-user
   namespace: kubernetes-dashboard   namespace: kubernetes-dashboard
----+  #namespace: default 
 +</​code><​code>​ 
 +$ kubectl apply -f dashboard-user-role.yaml 
 + 
 +$ kubectl create token admin-user -n kubernetes-dashboard #​--duration=1h 
 + 
 +$ ###ps aux | grep kube-apiserver | grep service-account-key-file 
 +$ ###echo ... | jq -R '​split("​."​) | .[1] | @base64d | fromjson'​ 
 +$ ###echo ... | awk -F'​.'​ '​{print $2}' | base64 -d | jq -r '.exp | todate'​ 
 + 
 +cmder$ kubectl proxy 
 +</​code>​ 
 + 
 +  * http://​localhost:​8001/​api/​v1/​namespaces/​kubernetes-dashboard/​services/​https:​kubernetes-dashboard:/​proxy/​ 
 + 
 +<​code>​ 
 +$ cat dashboard-secret.yaml 
 +</​code><​code>​
 apiVersion: v1 apiVersion: v1
 kind: Secret kind: Secret
Line 2119: Line 2171:
   name: admin-user   name: admin-user
   namespace: kubernetes-dashboard   namespace: kubernetes-dashboard
 +  #namespace: default
   annotations:​   annotations:​
     kubernetes.io/​service-account.name:​ "​admin-user"​     kubernetes.io/​service-account.name:​ "​admin-user"​
 type: kubernetes.io/​service-account-token type: kubernetes.io/​service-account-token
 </​code><​code>​ </​code><​code>​
-$ kubectl apply -f dashboard-user-role.yaml +$ kubectl apply -f dashboard-secret.yaml
- +
-$ kubectl -n kubernetes-dashboard create token admin-user+
  
 $ kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={"​.data.token"​} | base64 -d ; echo $ kubectl get secret admin-user -n kubernetes-dashboard -o jsonpath={"​.data.token"​} | base64 -d ; echo
- 
-cmder$ kubectl proxy 
 </​code>​ </​code>​
- 
-  * http://​localhost:​8001/​api/​v1/​namespaces/​kubernetes-dashboard/​services/​https:​kubernetes-dashboard:/​proxy/​ 
- 
 ===== Мониторинг ===== ===== Мониторинг =====
  
система_kubernetes.1753793605.txt.gz · Last modified: 2025/07/29 15:53 by val